Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807037440/at2354sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807037440/at2354Isup2.hkl |
CCDC reference: 660063
A solution of imidazole (0.0272 g, 0.4 mmol) and N,N-dimethylformamide (5 ml) was mixed with a solution of Cu(ClO4)2.6H2O (0.0371 g, 0.1 mmol) in methanol (15 ml) with sharp stir. Then the mixture was heated for half an hour in water bath at 333 K, which led to a green solution. With the solution slowly evaporating in room temperature for three week, green block crystal appeared. Filtrated, washed with a few drops of methanol and dried naturally, pure title compound of 0.047 g was obtained (yield 75%); Analysis calculated for C16H30Cl2CuN10O8: C 30.75, H 4.84, N 22.41%. Found: C 30.82, H 4.79, N 22.45%.
All H atoms were positioned geometrically and constrained to ride on their parent atoms with C—H = 0.95–0.98 Å, N—H = 0.88–0.90 Å and with Uiso = 1.2Ueq(C, N) or 1.5Ueq(C) for methyl H atoms.
In decades, hydrogen bonding with directionality and strength has been widely exploited by crystal engineers to control and tune structure topologies. For example, the carboxylic acid moiety as a graceful supramolecular synthon can be hydrogen bonded into not only discrete aggregates and one-dimensional polymers but also two-dimensional and three-dimensional networks; and calix-C-methylresorcin-[4]arenes self-assembled with water molecules held together by hydrogen bonds into a spheroid with a very large enclosed cavity of 1375 Å3 (Moulton & Zaworotko, 2001). Of currently attractive are coordination complexes encoding multiple hydrogen-bonding acceptors and donors embedded in ligands because these supramolecular synthons incorporating stereostructure and H-bond sites can further construct higher-ordered aggregates through H-bond recognitions (Lavalette et al., 2003; Głowiak & Wnęk, 1985). We communicate herein the synthesis and hydrogen-bonded two-dimensional planar sheet constructed by novel one-dimensional hydrogen-bonded ribbons of the title compound, [Cu(C3H4N2)4(ClO4)]+.(ClO4)-.2(C2H7N), (I).
In (I), the coordination enviroment of Cu(II) ion is axially elongated tetragonal-pyramidal (Fig. 1 and Table 1). The Cu(II) atom is Penta-coordinated by N4O with four terminal imidazole molecules arranged almost perpendicular to the Cu—N4 plane in base [Cu—N, from 2.0104 (19) to 2.0347 (19) Å] and a terminal perchlorate anion at apex [Cu—O, 2.2796 (19) Å]. As clearly shown in Fig. 2, the cation complex is an excellent supramolecular synthon. The four terminal imidazole ligands acting as hydrogen-bonding donors bind two lattice perchlorates and two coordination perchlorates, respectively, while, with the free coordination oxygen O4 as hydrogen-bonding acceptors, the coordination perchlorate anion also connect with two imidazole ligands from different complex ions (Table 2). Thus, the cation complex is a notable six-connector, and self-assembles into a novel one-dimensional hydrogen-bonded ribbon by paired N—H···O hydrogen bonds. With lattice perchlorate being captured at one corner by other paired N—H···O hydrogen bonds, the novel one-dimensional hydrogen-bonded ribbons finally extend into a hydrogen-bonded two-dimensional planar sheet in the direction parallel to the (1 0 1) plane (Fig. 3), and pack up in crystals (Fig. 4). Remarkably, through H-bond interactions, dimethylamine molecules which have been determined by single-crystal and elemental analysis inhabit in cavities of the one-dimensional hydrogen-bonded ribbons or ride at the lattice perchlorate. Perhaps, the dimethylamine derived from the decomposition of N,N-dimethylformamide in the reaction system (Xu et al., 2004).
For related literature, see: Głowiak & Wnęk (1985); Lavalette et al. (2003); Moulton & Zaworotko (2001); Sengupta et al. (2001); Xu et al. (2004).
Data collection: SMART (Siemens, 1994); cell refinement: SAINT (Siemens, 1994); data reduction: SHELXTL (Sheldrick, 1997b); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
[Cu(ClO4)(C3H4N2)4]ClO4·2C2H7N2 | F(000) = 1292 |
Mr = 624.94 | Dx = 1.606 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 6261 reflections |
a = 16.5302 (17) Å | θ = 2.5–27.9° |
b = 9.2777 (10) Å | µ = 1.11 mm−1 |
c = 20.7248 (15) Å | T = 273 K |
β = 125.580 (5)° | Block, green |
V = 2585.0 (5) Å3 | 0.32 × 0.29 × 0.25 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 6240 independent reflections |
Radiation source: fine-focus sealed tube | 4989 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
φ and ω scans | θmax = 28.3°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −22→21 |
Tmin = 0.712, Tmax = 0.765 | k = −12→12 |
21182 measured reflections | l = −27→26 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0615P)2 + 1.869P] where P = (Fo2 + 2Fc2)/3 |
6240 reflections | (Δ/σ)max = 0.001 |
328 parameters | Δρmax = 0.66 e Å−3 |
0 restraints | Δρmin = −0.87 e Å−3 |
[Cu(ClO4)(C3H4N2)4]ClO4·2C2H7N2 | V = 2585.0 (5) Å3 |
Mr = 624.94 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 16.5302 (17) Å | µ = 1.11 mm−1 |
b = 9.2777 (10) Å | T = 273 K |
c = 20.7248 (15) Å | 0.32 × 0.29 × 0.25 mm |
β = 125.580 (5)° |
Bruker SMART CCD area-detector diffractometer | 6240 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 4989 reflections with I > 2σ(I) |
Tmin = 0.712, Tmax = 0.765 | Rint = 0.030 |
21182 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.66 e Å−3 |
6240 reflections | Δρmin = −0.87 e Å−3 |
328 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
Cu1 | 0.28355 (2) | 0.24588 (3) | 0.777041 (17) | 0.02098 (10) | |
Cl1 | 0.52647 (4) | 0.21986 (6) | 0.92904 (3) | 0.02249 (13) | |
O1 | 0.45053 (13) | 0.28852 (19) | 0.85304 (10) | 0.0293 (4) | |
N1 | 0.25032 (16) | 0.0965 (2) | 0.82932 (12) | 0.0243 (4) | |
C1 | 0.1562 (2) | 0.0424 (3) | 0.79480 (16) | 0.0311 (5) | |
H1A | 0.0997 | 0.0647 | 0.7429 | 0.037* | |
Cl2 | 0.04412 (4) | 0.77614 (6) | 0.43718 (3) | 0.02472 (14) | |
O2 | 0.51351 (15) | 0.2707 (2) | 0.99015 (11) | 0.0388 (5) | |
N2 | 0.25177 (17) | −0.0490 (2) | 0.91358 (13) | 0.0311 (5) | |
H2B | 0.2736 | −0.0988 | 0.9570 | 0.037* | |
C2 | 0.1568 (2) | −0.0483 (3) | 0.84686 (16) | 0.0318 (6) | |
H2C | 0.1019 | −0.1006 | 0.8382 | 0.038* | |
O3 | 0.51743 (15) | 0.06216 (19) | 0.92169 (12) | 0.0402 (5) | |
N3 | 0.25347 (16) | 0.3963 (2) | 0.83014 (12) | 0.0244 (4) | |
C3 | 0.30678 (19) | 0.0401 (3) | 0.90176 (15) | 0.0269 (5) | |
H3B | 0.3756 | 0.0595 | 0.9396 | 0.032* | |
O4 | 0.62696 (14) | 0.26129 (18) | 0.95327 (11) | 0.0283 (4) | |
N4 | 0.26774 (17) | 0.5529 (2) | 0.91551 (13) | 0.0311 (5) | |
H4B | 0.2947 | 0.6063 | 0.9584 | 0.037* | |
C4 | 0.3164 (2) | 0.4596 (3) | 0.89952 (15) | 0.0273 (5) | |
H4C | 0.3859 | 0.4417 | 0.9332 | 0.033* | |
O5 | 0.01465 (19) | 0.9259 (2) | 0.43397 (19) | 0.0682 (8) | |
N5 | 0.27036 (15) | 0.3940 (2) | 0.70031 (11) | 0.0225 (4) | |
C5 | 0.1696 (2) | 0.5503 (3) | 0.85361 (16) | 0.0343 (6) | |
H5B | 0.1176 | 0.6056 | 0.8482 | 0.041* | |
O6 | 0.01920 (16) | 0.6908 (3) | 0.48374 (13) | 0.0492 (6) | |
N6 | 0.2068 (2) | 0.5493 (2) | 0.60361 (13) | 0.0435 (6) | |
H6B | 0.1627 | 0.6045 | 0.5638 | 0.052* | |
C6 | 0.1612 (2) | 0.4522 (3) | 0.80090 (16) | 0.0321 (6) | |
H6C | 0.1010 | 0.4266 | 0.7518 | 0.039* | |
O7 | −0.00792 (18) | 0.7188 (3) | 0.35769 (13) | 0.0571 (7) | |
N7 | 0.29348 (15) | 0.0923 (2) | 0.71186 (12) | 0.0235 (4) | |
C7 | 0.1884 (2) | 0.4609 (3) | 0.64449 (15) | 0.0326 (6) | |
H7B | 0.1251 | 0.4481 | 0.6347 | 0.039* | |
O8 | 0.15263 (14) | 0.7693 (2) | 0.47831 (12) | 0.0352 (4) | |
N8 | 0.25757 (17) | −0.0565 (2) | 0.61590 (12) | 0.0316 (5) | |
H8B | 0.2230 | −0.1104 | 0.5731 | 0.038* | |
C8 | 0.3048 (3) | 0.5398 (3) | 0.63370 (17) | 0.0425 (7) | |
H8C | 0.3388 | 0.5906 | 0.6164 | 0.051* | |
C9 | 0.3441 (2) | 0.4422 (3) | 0.69392 (16) | 0.0309 (5) | |
H9A | 0.4117 | 0.4123 | 0.7263 | 0.037* | |
C10 | 0.38020 (19) | 0.0519 (3) | 0.72164 (15) | 0.0282 (5) | |
H10A | 0.4451 | 0.0835 | 0.7631 | 0.034* | |
C11 | 0.3582 (2) | −0.0407 (3) | 0.66236 (16) | 0.0311 (5) | |
H11A | 0.4040 | −0.0853 | 0.6550 | 0.037* | |
C12 | 0.21965 (11) | 0.02468 (15) | 0.64659 (9) | 0.0289 (5) | |
H12A | 0.1510 | 0.0325 | 0.6251 | 0.035* | |
N10 | 0.42910 (11) | −0.20296 (15) | 0.86560 (9) | 0.0321 (5) | |
H10B | 0.4422 | −0.1364 | 0.9021 | 0.038* | |
N9 | 0.06492 (11) | 0.20562 (15) | 0.44547 (9) | 0.0434 (6) | |
H9B | 0.0467 | 0.1522 | 0.4701 | 0.052* | |
C13 | 0.1675 (3) | 0.2473 (4) | 0.4811 (3) | 0.0596 (10) | |
H13A | 0.2102 | 0.2075 | 0.5348 | 0.089* | |
H13B | 0.1727 | 0.3526 | 0.4835 | 0.089* | |
H13C | 0.1886 | 0.2098 | 0.4488 | 0.089* | |
C14 | −0.0058 (4) | 0.2612 (4) | 0.3643 (3) | 0.0669 (11) | |
H14A | −0.0733 | 0.2299 | 0.3441 | 0.100* | |
H14B | 0.0120 | 0.2239 | 0.3298 | 0.100* | |
H14C | −0.0031 | 0.3668 | 0.3650 | 0.100* | |
C15 | 0.3270 (3) | −0.2450 (3) | 0.79940 (18) | 0.0380 (7) | |
H15A | 0.2788 | −0.1894 | 0.8023 | 0.057* | |
H15B | 0.3174 | −0.3481 | 0.8032 | 0.057* | |
H15C | 0.3171 | −0.2255 | 0.7488 | 0.057* | |
C16 | 0.5070 (3) | −0.2820 (4) | 0.8665 (2) | 0.0578 (9) | |
H16A | 0.5726 | −0.2499 | 0.9117 | 0.087* | |
H16B | 0.5004 | −0.2632 | 0.8171 | 0.087* | |
H16C | 0.4997 | −0.3856 | 0.8712 | 0.087* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.03030 (18) | 0.01577 (14) | 0.02325 (16) | 0.00019 (11) | 0.01922 (14) | 0.00038 (10) |
Cl1 | 0.0205 (3) | 0.0258 (3) | 0.0189 (3) | −0.0009 (2) | 0.0102 (2) | 0.0005 (2) |
O1 | 0.0261 (10) | 0.0329 (9) | 0.0209 (8) | 0.0013 (7) | 0.0091 (8) | 0.0040 (7) |
N1 | 0.0319 (11) | 0.0206 (9) | 0.0251 (10) | −0.0007 (8) | 0.0191 (9) | 0.0013 (8) |
C1 | 0.0279 (14) | 0.0321 (13) | 0.0299 (13) | 0.0001 (10) | 0.0148 (11) | 0.0064 (11) |
Cl2 | 0.0223 (3) | 0.0272 (3) | 0.0228 (3) | −0.0005 (2) | 0.0120 (2) | 0.0007 (2) |
O2 | 0.0337 (11) | 0.0634 (14) | 0.0236 (9) | 0.0114 (9) | 0.0192 (9) | 0.0030 (8) |
N2 | 0.0388 (13) | 0.0302 (11) | 0.0302 (11) | 0.0049 (9) | 0.0234 (10) | 0.0096 (9) |
C2 | 0.0299 (14) | 0.0314 (13) | 0.0374 (14) | −0.0029 (11) | 0.0216 (12) | 0.0051 (11) |
O3 | 0.0384 (12) | 0.0222 (9) | 0.0433 (11) | −0.0062 (8) | 0.0143 (10) | 0.0013 (8) |
N3 | 0.0310 (11) | 0.0200 (9) | 0.0267 (10) | −0.0010 (8) | 0.0194 (9) | −0.0029 (8) |
C3 | 0.0291 (13) | 0.0264 (12) | 0.0272 (12) | −0.0006 (10) | 0.0176 (11) | 0.0005 (10) |
O4 | 0.0224 (9) | 0.0373 (10) | 0.0257 (9) | −0.0079 (7) | 0.0143 (8) | −0.0061 (7) |
N4 | 0.0393 (13) | 0.0277 (11) | 0.0267 (10) | −0.0026 (9) | 0.0193 (10) | −0.0092 (9) |
C4 | 0.0301 (13) | 0.0245 (11) | 0.0268 (12) | −0.0008 (10) | 0.0162 (11) | −0.0017 (9) |
O5 | 0.0570 (16) | 0.0278 (11) | 0.129 (2) | 0.0085 (10) | 0.0591 (18) | 0.0038 (13) |
N5 | 0.0247 (11) | 0.0199 (9) | 0.0231 (9) | 0.0013 (8) | 0.0140 (9) | 0.0025 (7) |
C5 | 0.0332 (15) | 0.0359 (14) | 0.0361 (14) | 0.0015 (11) | 0.0215 (13) | −0.0085 (12) |
O6 | 0.0421 (13) | 0.0645 (14) | 0.0445 (12) | −0.0002 (11) | 0.0272 (11) | 0.0217 (11) |
N6 | 0.0555 (17) | 0.0292 (12) | 0.0263 (11) | 0.0066 (11) | 0.0126 (12) | 0.0112 (9) |
C6 | 0.0294 (14) | 0.0361 (14) | 0.0311 (13) | −0.0024 (11) | 0.0178 (12) | −0.0101 (11) |
O7 | 0.0407 (14) | 0.0908 (19) | 0.0264 (11) | −0.0196 (12) | 0.0119 (10) | −0.0220 (11) |
N7 | 0.0296 (11) | 0.0200 (9) | 0.0246 (10) | 0.0004 (8) | 0.0178 (9) | −0.0011 (8) |
C7 | 0.0286 (14) | 0.0286 (12) | 0.0291 (13) | 0.0034 (10) | 0.0102 (11) | 0.0003 (10) |
O8 | 0.0199 (10) | 0.0517 (12) | 0.0274 (9) | 0.0010 (8) | 0.0099 (8) | 0.0011 (8) |
N8 | 0.0403 (13) | 0.0263 (11) | 0.0245 (10) | −0.0054 (9) | 0.0168 (10) | −0.0074 (8) |
C8 | 0.064 (2) | 0.0360 (15) | 0.0364 (15) | −0.0126 (14) | 0.0343 (16) | 0.0014 (12) |
C9 | 0.0320 (14) | 0.0340 (13) | 0.0323 (13) | −0.0027 (11) | 0.0219 (12) | 0.0036 (11) |
C10 | 0.0285 (13) | 0.0300 (12) | 0.0281 (12) | −0.0045 (10) | 0.0177 (11) | −0.0077 (10) |
C11 | 0.0334 (14) | 0.0318 (13) | 0.0319 (13) | 0.0001 (11) | 0.0212 (12) | −0.0067 (11) |
C12 | 0.0304 (14) | 0.0259 (12) | 0.0280 (12) | −0.0013 (10) | 0.0157 (11) | −0.0009 (10) |
N10 | 0.0443 (14) | 0.0265 (10) | 0.0293 (11) | −0.0029 (10) | 0.0237 (11) | −0.0048 (9) |
N9 | 0.0523 (17) | 0.0352 (12) | 0.0491 (15) | −0.0021 (12) | 0.0331 (14) | 0.0038 (11) |
C13 | 0.064 (3) | 0.054 (2) | 0.064 (3) | −0.0127 (17) | 0.040 (2) | −0.0039 (17) |
C14 | 0.073 (3) | 0.071 (3) | 0.057 (2) | 0.008 (2) | 0.037 (2) | 0.0065 (18) |
C15 | 0.0472 (19) | 0.0309 (14) | 0.0317 (14) | −0.0038 (12) | 0.0206 (14) | −0.0025 (11) |
C16 | 0.061 (2) | 0.064 (2) | 0.064 (2) | 0.0081 (18) | 0.045 (2) | −0.0023 (18) |
Cu1—N3 | 2.0104 (19) | N6—H6B | 0.8800 |
Cu1—N5 | 2.0151 (19) | C6—H6C | 0.9500 |
Cu1—N1 | 2.0223 (19) | N7—C12 | 1.339 (2) |
Cu1—N7 | 2.0347 (19) | N7—C10 | 1.378 (3) |
Cu1—O1 | 2.2796 (19) | C7—H7B | 0.9500 |
Cl1—O3 | 1.4695 (19) | N8—C12 | 1.352 (3) |
Cl1—O1 | 1.4702 (18) | N8—C11 | 1.361 (4) |
Cl1—O2 | 1.4794 (19) | N8—H8B | 0.8800 |
Cl1—O4 | 1.4794 (18) | C8—C9 | 1.362 (4) |
N1—C3 | 1.330 (3) | C8—H8C | 0.9500 |
N1—C1 | 1.375 (3) | C9—H9A | 0.9500 |
C1—C2 | 1.363 (3) | C10—C11 | 1.363 (3) |
C1—H1A | 0.9500 | C10—H10A | 0.9500 |
Cl2—O7 | 1.445 (2) | C11—H11A | 0.9500 |
Cl2—O5 | 1.461 (2) | C12—H12A | 0.9500 |
Cl2—O8 | 1.473 (2) | N10—C16 | 1.472 (4) |
Cl2—O6 | 1.480 (2) | N10—C15 | 1.480 (4) |
N2—C3 | 1.352 (3) | N10—H10B | 0.9000 |
N2—C2 | 1.360 (4) | N9—C13 | 1.454 (4) |
N2—H2B | 0.8800 | N9—C14 | 1.475 (4) |
C2—H2C | 0.9500 | N9—H9B | 0.8800 |
N3—C4 | 1.324 (3) | C13—H13A | 0.9800 |
N3—C6 | 1.374 (3) | C13—H13B | 0.9800 |
C3—H3B | 0.9500 | C13—H13C | 0.9800 |
N4—C4 | 1.348 (3) | C14—H14A | 0.9800 |
N4—C5 | 1.362 (4) | C14—H14B | 0.9800 |
N4—H4B | 0.8800 | C14—H14C | 0.9800 |
C4—H4C | 0.9500 | C15—H15A | 0.9800 |
N5—C7 | 1.317 (3) | C15—H15B | 0.9800 |
N5—C9 | 1.375 (3) | C15—H15C | 0.9800 |
C5—C6 | 1.365 (3) | C16—H16A | 0.9800 |
C5—H5B | 0.9500 | C16—H16B | 0.9800 |
N6—C7 | 1.335 (4) | C16—H16C | 0.9800 |
N6—C8 | 1.359 (4) | ||
N3—Cu1—N5 | 90.64 (8) | C5—C6—H6C | 125.4 |
N3—Cu1—N1 | 87.23 (8) | N3—C6—H6C | 125.4 |
N5—Cu1—N1 | 162.13 (9) | C12—N7—C10 | 106.26 (17) |
N3—Cu1—N7 | 172.14 (8) | C12—N7—Cu1 | 128.37 (14) |
N5—Cu1—N7 | 88.11 (8) | C10—N7—Cu1 | 124.88 (16) |
N1—Cu1—N7 | 91.59 (8) | N5—C7—N6 | 110.4 (2) |
N3—Cu1—O1 | 94.99 (8) | N5—C7—H7B | 124.8 |
N5—Cu1—O1 | 87.62 (7) | N6—C7—H7B | 124.8 |
N1—Cu1—O1 | 110.24 (8) | C12—N8—C11 | 108.51 (19) |
N7—Cu1—O1 | 92.71 (7) | C12—N8—H8B | 125.7 |
O3—Cl1—O1 | 110.39 (11) | C11—N8—H8B | 125.7 |
O3—Cl1—O2 | 110.46 (12) | N6—C8—C9 | 105.6 (2) |
O1—Cl1—O2 | 108.68 (11) | N6—C8—H8C | 127.2 |
O3—Cl1—O4 | 108.68 (11) | C9—C8—H8C | 127.2 |
O1—Cl1—O4 | 109.96 (11) | C8—C9—N5 | 109.1 (3) |
O2—Cl1—O4 | 108.65 (11) | C8—C9—H9A | 125.4 |
Cl1—O1—Cu1 | 126.93 (11) | N5—C9—H9A | 125.4 |
C3—N1—C1 | 106.4 (2) | C11—C10—N7 | 109.2 (2) |
C3—N1—Cu1 | 130.05 (18) | C11—C10—H10A | 125.4 |
C1—N1—Cu1 | 123.33 (16) | N7—C10—H10A | 125.4 |
C2—C1—N1 | 109.2 (2) | N8—C11—C10 | 106.3 (2) |
C2—C1—H1A | 125.4 | N8—C11—H11A | 126.8 |
N1—C1—H1A | 125.4 | C10—C11—H11A | 126.8 |
O7—Cl2—O5 | 109.68 (17) | N7—C12—N8 | 109.67 (16) |
O7—Cl2—O8 | 111.14 (13) | N7—C12—H12A | 125.2 |
O5—Cl2—O8 | 109.20 (13) | N8—C12—H12A | 125.2 |
O7—Cl2—O6 | 109.84 (15) | C16—N10—C15 | 113.4 (2) |
O5—Cl2—O6 | 109.05 (15) | C16—N10—H10B | 123.4 |
O8—Cl2—O6 | 107.88 (12) | C15—N10—H10B | 123.2 |
C3—N2—C2 | 108.2 (2) | C13—N9—C14 | 113.7 (3) |
C3—N2—H2B | 125.9 | C13—N9—H9B | 123.1 |
C2—N2—H2B | 125.9 | C14—N9—H9B | 123.1 |
N2—C2—C1 | 106.3 (2) | N9—C13—H13A | 109.5 |
N2—C2—H2C | 126.9 | N9—C13—H13B | 109.5 |
C1—C2—H2C | 126.9 | H13A—C13—H13B | 109.5 |
C4—N3—C6 | 106.3 (2) | N9—C13—H13C | 109.5 |
C4—N3—Cu1 | 127.88 (17) | H13A—C13—H13C | 109.5 |
C6—N3—Cu1 | 125.83 (17) | H13B—C13—H13C | 109.5 |
N1—C3—N2 | 109.9 (2) | N9—C14—H14A | 109.5 |
N1—C3—H3B | 125.0 | N9—C14—H14B | 109.5 |
N2—C3—H3B | 125.0 | H14A—C14—H14B | 109.5 |
C4—N4—C5 | 108.1 (2) | N9—C14—H14C | 109.5 |
C4—N4—H4B | 125.9 | H14A—C14—H14C | 109.5 |
C5—N4—H4B | 125.9 | H14B—C14—H14C | 109.5 |
N3—C4—N4 | 110.4 (2) | N10—C15—H15A | 109.5 |
N3—C4—H4C | 124.8 | N10—C15—H15B | 109.5 |
N4—C4—H4C | 124.8 | H15A—C15—H15B | 109.5 |
C7—N5—C9 | 106.2 (2) | N10—C15—H15C | 109.5 |
C7—N5—Cu1 | 126.73 (18) | H15A—C15—H15C | 109.5 |
C9—N5—Cu1 | 127.08 (17) | H15B—C15—H15C | 109.5 |
N4—C5—C6 | 106.1 (2) | N10—C16—H16A | 109.5 |
N4—C5—H5B | 127.0 | N10—C16—H16B | 109.5 |
C6—C5—H5B | 127.0 | H16A—C16—H16B | 109.5 |
C7—N6—C8 | 108.7 (2) | N10—C16—H16C | 109.5 |
C7—N6—H6B | 125.7 | H16A—C16—H16C | 109.5 |
C8—N6—H6B | 125.7 | H16B—C16—H16C | 109.5 |
C5—C6—N3 | 109.2 (2) | ||
O3—Cl1—O1—Cu1 | 51.84 (16) | N1—Cu1—N5—C7 | 15.6 (4) |
O2—Cl1—O1—Cu1 | −69.45 (16) | N7—Cu1—N5—C7 | 104.9 (2) |
O4—Cl1—O1—Cu1 | 171.74 (11) | O1—Cu1—N5—C7 | −162.3 (2) |
N3—Cu1—O1—Cl1 | 89.35 (14) | N3—Cu1—N5—C9 | 114.8 (2) |
N5—Cu1—O1—Cl1 | 179.78 (14) | N1—Cu1—N5—C9 | −162.2 (2) |
N1—Cu1—O1—Cl1 | 0.47 (16) | N7—Cu1—N5—C9 | −72.9 (2) |
N7—Cu1—O1—Cl1 | −92.23 (14) | O1—Cu1—N5—C9 | 19.9 (2) |
N3—Cu1—N1—C3 | −84.1 (2) | C4—N4—C5—C6 | 0.5 (3) |
N5—Cu1—N1—C3 | −167.5 (2) | N4—C5—C6—N3 | −0.5 (3) |
N7—Cu1—N1—C3 | 103.7 (2) | C4—N3—C6—C5 | 0.2 (3) |
O1—Cu1—N1—C3 | 10.3 (2) | Cu1—N3—C6—C5 | 179.30 (18) |
N3—Cu1—N1—C1 | 89.9 (2) | N5—Cu1—N7—C12 | −84.60 (17) |
N5—Cu1—N1—C1 | 6.5 (4) | N1—Cu1—N7—C12 | 77.53 (18) |
N7—Cu1—N1—C1 | −82.3 (2) | O1—Cu1—N7—C12 | −172.12 (17) |
O1—Cu1—N1—C1 | −175.75 (18) | N5—Cu1—N7—C10 | 86.23 (19) |
C3—N1—C1—C2 | −0.7 (3) | N1—Cu1—N7—C10 | −111.65 (19) |
Cu1—N1—C1—C2 | −175.89 (17) | O1—Cu1—N7—C10 | −1.30 (19) |
C3—N2—C2—C1 | 0.2 (3) | C9—N5—C7—N6 | −0.3 (3) |
N1—C1—C2—N2 | 0.3 (3) | Cu1—N5—C7—N6 | −178.51 (17) |
N5—Cu1—N3—C4 | −105.0 (2) | C8—N6—C7—N5 | 0.1 (3) |
N1—Cu1—N3—C4 | 92.8 (2) | C7—N6—C8—C9 | 0.1 (3) |
O1—Cu1—N3—C4 | −17.3 (2) | N6—C8—C9—N5 | −0.3 (3) |
N5—Cu1—N3—C6 | 76.1 (2) | C7—N5—C9—C8 | 0.4 (3) |
N1—Cu1—N3—C6 | −86.1 (2) | Cu1—N5—C9—C8 | 178.57 (18) |
O1—Cu1—N3—C6 | 163.8 (2) | C12—N7—C10—C11 | −0.3 (3) |
C1—N1—C3—N2 | 0.8 (3) | Cu1—N7—C10—C11 | −172.86 (17) |
Cu1—N1—C3—N2 | 175.60 (16) | C12—N8—C11—C10 | −0.1 (3) |
C2—N2—C3—N1 | −0.7 (3) | N7—C10—C11—N8 | 0.3 (3) |
C6—N3—C4—N4 | 0.1 (3) | C10—N7—C12—N8 | 0.3 (2) |
Cu1—N3—C4—N4 | −178.94 (16) | Cu1—N7—C12—N8 | 172.43 (15) |
C5—N4—C4—N3 | −0.4 (3) | C11—N8—C12—N7 | −0.1 (2) |
N3—Cu1—N5—C7 | −67.3 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···O4i | 0.88 | 2.21 | 3.013 (3) | 152 |
N4—H4B···O4ii | 0.88 | 1.94 | 2.808 (3) | 167 |
N8—H8B···O8iii | 0.88 | 1.95 | 2.828 (3) | 177 |
N9—H9B···O5iii | 0.88 | 2.19 | 2.693 (3) | 116 |
N9—H9B···O6iv | 0.88 | 2.33 | 2.717 (3) | 107 |
N6—H6B···O6 | 0.88 | 2.11 | 2.924 (3) | 154 |
N6—H6B···O8 | 0.88 | 2.27 | 3.001 (3) | 140 |
N10—H10B···O3 | 0.90 | 2.13 | 2.749 (2) | 126 |
Symmetry codes: (i) −x+1, −y, −z+2; (ii) −x+1, −y+1, −z+2; (iii) x, y−1, z; (iv) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cu(ClO4)(C3H4N2)4]ClO4·2C2H7N2 |
Mr | 624.94 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 273 |
a, b, c (Å) | 16.5302 (17), 9.2777 (10), 20.7248 (15) |
β (°) | 125.580 (5) |
V (Å3) | 2585.0 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.11 |
Crystal size (mm) | 0.32 × 0.29 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.712, 0.765 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21182, 6240, 4989 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.666 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.119, 1.07 |
No. of reflections | 6240 |
No. of parameters | 328 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.66, −0.87 |
Computer programs: SMART (Siemens, 1994), SAINT (Siemens, 1994), SHELXTL (Sheldrick, 1997b), SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL.
Cu1—N3 | 2.0104 (19) | Cu1—N7 | 2.0347 (19) |
Cu1—N5 | 2.0151 (19) | Cu1—O1 | 2.2796 (19) |
Cu1—N1 | 2.0223 (19) | ||
N3—Cu1—N5 | 90.64 (8) | N1—Cu1—N7 | 91.59 (8) |
N3—Cu1—N1 | 87.23 (8) | N3—Cu1—O1 | 94.99 (8) |
N5—Cu1—N1 | 162.13 (9) | N5—Cu1—O1 | 87.62 (7) |
N3—Cu1—N7 | 172.14 (8) | N1—Cu1—O1 | 110.24 (8) |
N5—Cu1—N7 | 88.11 (8) | N7—Cu1—O1 | 92.71 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···O4i | 0.88 | 2.21 | 3.013 (3) | 151.8 |
N4—H4B···O4ii | 0.88 | 1.94 | 2.808 (3) | 167.3 |
N8—H8B···O8iii | 0.88 | 1.95 | 2.828 (3) | 177.0 |
N9—H9B···O5iii | 0.88 | 2.19 | 2.693 (3) | 116.0 |
N9—H9B···O6iv | 0.88 | 2.33 | 2.717 (3) | 106.6 |
N6—H6B···O6 | 0.88 | 2.11 | 2.924 (3) | 153.8 |
N6—H6B···O8 | 0.88 | 2.27 | 3.001 (3) | 140.2 |
N10—H10B···O3 | 0.90 | 2.13 | 2.749 (2) | 125.7 |
Symmetry codes: (i) −x+1, −y, −z+2; (ii) −x+1, −y+1, −z+2; (iii) x, y−1, z; (iv) −x, −y+1, −z+1. |
In decades, hydrogen bonding with directionality and strength has been widely exploited by crystal engineers to control and tune structure topologies. For example, the carboxylic acid moiety as a graceful supramolecular synthon can be hydrogen bonded into not only discrete aggregates and one-dimensional polymers but also two-dimensional and three-dimensional networks; and calix-C-methylresorcin-[4]arenes self-assembled with water molecules held together by hydrogen bonds into a spheroid with a very large enclosed cavity of 1375 Å3 (Moulton & Zaworotko, 2001). Of currently attractive are coordination complexes encoding multiple hydrogen-bonding acceptors and donors embedded in ligands because these supramolecular synthons incorporating stereostructure and H-bond sites can further construct higher-ordered aggregates through H-bond recognitions (Lavalette et al., 2003; Głowiak & Wnęk, 1985). We communicate herein the synthesis and hydrogen-bonded two-dimensional planar sheet constructed by novel one-dimensional hydrogen-bonded ribbons of the title compound, [Cu(C3H4N2)4(ClO4)]+.(ClO4)-.2(C2H7N), (I).
In (I), the coordination enviroment of Cu(II) ion is axially elongated tetragonal-pyramidal (Fig. 1 and Table 1). The Cu(II) atom is Penta-coordinated by N4O with four terminal imidazole molecules arranged almost perpendicular to the Cu—N4 plane in base [Cu—N, from 2.0104 (19) to 2.0347 (19) Å] and a terminal perchlorate anion at apex [Cu—O, 2.2796 (19) Å]. As clearly shown in Fig. 2, the cation complex is an excellent supramolecular synthon. The four terminal imidazole ligands acting as hydrogen-bonding donors bind two lattice perchlorates and two coordination perchlorates, respectively, while, with the free coordination oxygen O4 as hydrogen-bonding acceptors, the coordination perchlorate anion also connect with two imidazole ligands from different complex ions (Table 2). Thus, the cation complex is a notable six-connector, and self-assembles into a novel one-dimensional hydrogen-bonded ribbon by paired N—H···O hydrogen bonds. With lattice perchlorate being captured at one corner by other paired N—H···O hydrogen bonds, the novel one-dimensional hydrogen-bonded ribbons finally extend into a hydrogen-bonded two-dimensional planar sheet in the direction parallel to the (1 0 1) plane (Fig. 3), and pack up in crystals (Fig. 4). Remarkably, through H-bond interactions, dimethylamine molecules which have been determined by single-crystal and elemental analysis inhabit in cavities of the one-dimensional hydrogen-bonded ribbons or ride at the lattice perchlorate. Perhaps, the dimethylamine derived from the decomposition of N,N-dimethylformamide in the reaction system (Xu et al., 2004).