Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807025032/bq2016sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807025032/bq2016Isup2.hkl |
CCDC reference: 635310
To a 10 ml of a stirring aqueous solution of 2,9-dimethyl-1,10-phenathroline (0.104 g, 0.5 mmol) and pyridine-2,3-dicarboxylic acid (0.0836 g, 0.5 mmol), was added a 0.5 molar equivalent of ZnSO4 . 7H2O (0.0727 g, 0.25 mmol) at room temperature. A neutral zinc(II) complex, [Zn(2,3-pydcH)2(H2O)2], was isolated at pH 3.0 as a colorless crystals. Slow evaporation of the solvent during 10 days resulted in product complexes. Recrystallization of resultants for several times leads to X-ray quality crystals.
The lattice consists of [Zn(2,3-pydcH)2(H2O)2] complexes resulted by a doubly monoprotonated (2,3-pydcH)- as a bidentate ligand. The presence of this bidentate ligand leads to a neutral complex and does not allow the 2,9-dimethyl-1,10-phenanthroline Lewis base to crystallize in the produced network. The asymmetric unit of compound, [Zn(2,3-pydcH)2(H2O)2] is presented in Figure 1. The metal center is hexacoordinated by two (2,3-pydcH)- bidentate ligand and two water molecules. The geometry around ZnII center is distorted octahedral. The four donor atoms of the two (2,3-pydcH)- anions form a square planar arrangement around ZnII center. The rings are almost coplanar (RMS deviation 0.0057 Å). In construction of this crystal which has an infinite three dimensional framework based on [100], [001] and [010] vectors, the hydrogen bonding intermolecular interactions play the essential role. The stabilizing interactions existing in the crystal lattice are intermolecular O–H···O and very strong intramolecular O–H···O type hydrogen bonds.
Hydrogen atoms of coordinated water molecules participate in hydrogen bonded chains described by C22(12) and C11(8) graph set descriptors. Thus, the three-dimensional supramolecule structure for [Zn(2,3-pydcH)2(H2O)2] is confirmed.
Several complexes of zinc with pyridine-2,6-dicarboxylic acid have been reported (Aghajani et al., 2006, and references therein). There is also a report of a similar copper compound with pyridine-2,3-dicarboxylic acid in the literature (Xiang et al., 2006).
Data collection: SMART (Bruker, 1998); cell refinement: SMART; data reduction: SAINT-Plus (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: SHELXTL.
[Zn(C14H8N2O8)(H2O)2] | F(000) = 440 |
Mr = 433.63 | Dx = 1.913 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
a = 9.304 (3) Å | Cell parameters from 5661 reflections |
b = 7.909 (3) Å | θ = 2.8–27.5° |
c = 10.276 (4) Å | µ = 1.70 mm−1 |
β = 95.317 (6)° | T = 150 K |
V = 752.9 (5) Å3 | Block, colourless |
Z = 2 | 0.38 × 0.38 × 0.35 mm |
Bruker SMART diffractometer | 1706 independent reflections |
Radiation source: fine-focus sealed tube | 1575 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
Detector resolution: 100 pixels mm-1 | θmax = 27.5°, θmin = 2.8° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1998) | k = −10→10 |
Tmin = 0.565, Tmax = 0.588 | l = −13→13 |
8225 measured reflections |
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)] = 0.025 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.12 | w = 1/[σ2(Fo2) + (0.0383P)2 + 0.3534P] where P = (Fo2 + 2Fc2)/3 |
1706 reflections | (Δ/σ)max = 0.001 |
124 parameters | Δρmax = 0.40 e Å−3 |
0 restraints | Δρmin = −0.40 e Å−3 |
[Zn(C14H8N2O8)(H2O)2] | V = 752.9 (5) Å3 |
Mr = 433.63 | Z = 2 |
Monoclinic, P21/n | Mo Kα radiation |
a = 9.304 (3) Å | µ = 1.70 mm−1 |
b = 7.909 (3) Å | T = 150 K |
c = 10.276 (4) Å | 0.38 × 0.38 × 0.35 mm |
β = 95.317 (6)° |
Bruker SMART diffractometer | 1706 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1998) | 1575 reflections with I > 2σ(I) |
Tmin = 0.565, Tmax = 0.588 | Rint = 0.023 |
8225 measured reflections |
R[F2 > 2σ(F2)] = 0.025 | 0 restraints |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.12 | Δρmax = 0.40 e Å−3 |
1706 reflections | Δρmin = −0.40 e Å−3 |
124 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 | ||
Zn1 | 0.5000 | 0.5000 | 1.0000 | 0.01651 (11) | |
N1 | 0.66631 (13) | 0.66168 (17) | 0.96316 (12) | 0.0159 (3) | |
C1 | 0.77906 (16) | 0.59130 (19) | 0.90988 (14) | 0.0147 (3) | |
C2 | 0.89688 (16) | 0.6908 (2) | 0.88011 (14) | 0.0156 (3) | |
C3 | 0.88952 (17) | 0.8644 (2) | 0.90586 (15) | 0.0189 (3) | |
H3 | 0.9665 | 0.9356 | 0.8855 | 0.023* | |
C4 | 0.77323 (18) | 0.9340 (2) | 0.96005 (16) | 0.0206 (3) | |
H4 | 0.7688 | 1.0519 | 0.9771 | 0.025* | |
C5 | 0.66301 (17) | 0.8268 (2) | 0.98885 (15) | 0.0187 (3) | |
H5 | 0.5828 | 0.8721 | 1.0280 | 0.022* | |
C6 | 0.75688 (16) | 0.39930 (19) | 0.89076 (14) | 0.0158 (3) | |
C7 | 1.03467 (16) | 0.6349 (2) | 0.82239 (15) | 0.0179 (3) | |
O1 | 0.63949 (11) | 0.33806 (14) | 0.91765 (11) | 0.0181 (2) | |
O2 | 0.85601 (12) | 0.31061 (14) | 0.85009 (11) | 0.0203 (2) | |
O3 | 1.13066 (12) | 0.74039 (15) | 0.81237 (12) | 0.0218 (3) | |
O4 | 1.05136 (14) | 0.48120 (15) | 0.78668 (14) | 0.0261 (3) | |
H4A | 0.9861 | 0.4162 | 0.8134 | 0.031* | |
O5 | 0.60695 (12) | 0.44082 (15) | 1.19303 (11) | 0.0201 (2) | |
H5A | 0.6325 | 0.5429 | 1.2381 | 0.024* | |
H5B | 0.6920 | 0.3741 | 1.1955 | 0.024* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.01293 (15) | 0.01436 (16) | 0.02298 (16) | −0.00098 (8) | 0.00569 (10) | −0.00054 (9) |
N1 | 0.0137 (6) | 0.0160 (6) | 0.0182 (6) | 0.0004 (5) | 0.0023 (5) | 0.0006 (5) |
C1 | 0.0146 (7) | 0.0143 (8) | 0.0150 (7) | 0.0005 (5) | 0.0007 (5) | 0.0006 (5) |
C2 | 0.0137 (7) | 0.0184 (8) | 0.0148 (7) | 0.0000 (6) | 0.0017 (5) | 0.0008 (6) |
C3 | 0.0172 (7) | 0.0186 (8) | 0.0208 (7) | −0.0038 (6) | 0.0022 (6) | 0.0011 (6) |
C4 | 0.0224 (8) | 0.0144 (8) | 0.0251 (8) | −0.0011 (6) | 0.0027 (6) | −0.0009 (6) |
C5 | 0.0173 (7) | 0.0169 (8) | 0.0224 (7) | 0.0019 (6) | 0.0045 (6) | −0.0002 (6) |
C6 | 0.0163 (7) | 0.0151 (8) | 0.0159 (7) | −0.0005 (6) | 0.0017 (6) | 0.0010 (5) |
C7 | 0.0149 (7) | 0.0211 (8) | 0.0179 (7) | 0.0003 (6) | 0.0021 (6) | 0.0031 (6) |
O1 | 0.0151 (5) | 0.0158 (5) | 0.0243 (5) | −0.0010 (4) | 0.0054 (4) | −0.0009 (4) |
O2 | 0.0171 (5) | 0.0159 (5) | 0.0290 (6) | 0.0014 (4) | 0.0073 (4) | −0.0010 (5) |
O3 | 0.0149 (5) | 0.0225 (6) | 0.0286 (6) | −0.0013 (4) | 0.0047 (4) | 0.0033 (5) |
O4 | 0.0192 (6) | 0.0209 (6) | 0.0405 (8) | −0.0022 (4) | 0.0140 (5) | −0.0025 (5) |
O5 | 0.0167 (5) | 0.0196 (6) | 0.0243 (6) | 0.0018 (4) | 0.0030 (4) | −0.0011 (5) |
Zn1—O1 | 2.0602 (12) | C3—C4 | 1.377 (2) |
Zn1—O1i | 2.0602 (12) | C3—H3 | 0.9500 |
Zn1—N1i | 2.0691 (14) | C4—C5 | 1.384 (2) |
Zn1—N1 | 2.0691 (14) | C4—H4 | 0.9500 |
Zn1—O5 | 2.1858 (13) | C5—H5 | 0.9500 |
Zn1—O5i | 2.1858 (13) | C6—O1 | 1.2489 (19) |
N1—C5 | 1.334 (2) | C6—O2 | 1.2604 (19) |
N1—C1 | 1.3478 (19) | C7—O3 | 1.2333 (19) |
C1—C2 | 1.406 (2) | C7—O4 | 1.283 (2) |
C1—C6 | 1.543 (2) | O4—H4A | 0.8600 |
C2—C3 | 1.401 (2) | O5—H5A | 0.9500 |
C2—C7 | 1.527 (2) | O5—H5B | 0.9500 |
O1—Zn1—O1i | 180.0 | C3—C2—C7 | 114.50 (13) |
O1—Zn1—N1i | 101.61 (6) | C1—C2—C7 | 128.45 (14) |
O1i—Zn1—N1i | 78.39 (5) | C4—C3—C2 | 121.50 (15) |
O1—Zn1—N1 | 78.39 (6) | C4—C3—H3 | 119.2 |
O1i—Zn1—N1 | 101.61 (6) | C2—C3—H3 | 119.2 |
N1i—Zn1—N1 | 180.0 | C3—C4—C5 | 117.84 (15) |
O1—Zn1—O5 | 89.34 (5) | C3—C4—H4 | 121.1 |
O1i—Zn1—O5 | 90.66 (5) | C5—C4—H4 | 121.1 |
N1i—Zn1—O5 | 89.25 (5) | N1—C5—C4 | 121.79 (14) |
N1—Zn1—O5 | 90.75 (5) | N1—C5—H5 | 119.1 |
O1—Zn1—O5i | 90.66 (5) | C4—C5—H5 | 119.1 |
O1i—Zn1—O5i | 89.34 (5) | O1—C6—O2 | 122.63 (14) |
N1i—Zn1—O5i | 90.75 (5) | O1—C6—C1 | 117.58 (13) |
N1—Zn1—O5i | 89.25 (5) | O2—C6—C1 | 119.78 (13) |
O5—Zn1—O5i | 180.0 | O3—C7—O4 | 120.60 (15) |
C5—N1—C1 | 121.20 (13) | O3—C7—C2 | 118.49 (14) |
C5—N1—Zn1 | 122.53 (10) | O4—C7—C2 | 120.90 (14) |
C1—N1—Zn1 | 116.26 (10) | C6—O1—Zn1 | 116.54 (10) |
N1—C1—C2 | 120.60 (14) | C7—O4—H4A | 111.6 |
N1—C1—C6 | 111.00 (12) | Zn1—O5—H5A | 109.4 |
C2—C1—C6 | 128.40 (13) | Zn1—O5—H5B | 116.8 |
C3—C2—C1 | 117.05 (14) | H5A—O5—H5B | 106.8 |
Symmetry code: (i) −x+1, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5A···O3ii | 0.95 | 1.88 | 2.8035 (19) | 164 |
O5—H5B···O3iii | 0.95 | 1.89 | 2.8358 (18) | 174 |
O5—H5B···O4iii | 0.95 | 2.64 | 3.226 (2) | 121 |
O4—H4A···O2 | 0.86 | 1.55 | 2.4017 (17) | 173 |
Symmetry codes: (ii) x−1/2, −y+3/2, z+1/2; (iii) −x+2, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C14H8N2O8)(H2O)2] |
Mr | 433.63 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 150 |
a, b, c (Å) | 9.304 (3), 7.909 (3), 10.276 (4) |
β (°) | 95.317 (6) |
V (Å3) | 752.9 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.70 |
Crystal size (mm) | 0.38 × 0.38 × 0.35 |
Data collection | |
Diffractometer | Bruker SMART |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1998) |
Tmin, Tmax | 0.565, 0.588 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8225, 1706, 1575 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.025, 0.069, 1.12 |
No. of reflections | 1706 |
No. of parameters | 124 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.40, −0.40 |
Computer programs: SMART (Bruker, 1998), SMART, SAINT-Plus (Bruker, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 1997), SHELXTL.
Zn1—O1 | 2.0602 (12) | Zn1—O5 | 2.1858 (13) |
Zn1—N1 | 2.0691 (14) | ||
O1—Zn1—N1i | 101.61 (6) | O1—Zn1—N1 | 78.39 (6) |
Symmetry code: (i) −x+1, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5A···O3ii | 0.95 | 1.88 | 2.8035 (19) | 164.4 |
O5—H5B···O3iii | 0.95 | 1.89 | 2.8358 (18) | 173.5 |
O5—H5B···O4iii | 0.95 | 2.64 | 3.226 (2) | 120.5 |
O4—H4A···O2 | 0.86 | 1.55 | 2.4017 (17) | 173.3 |
Symmetry codes: (ii) x−1/2, −y+3/2, z+1/2; (iii) −x+2, −y+1, −z+2. |
The lattice consists of [Zn(2,3-pydcH)2(H2O)2] complexes resulted by a doubly monoprotonated (2,3-pydcH)- as a bidentate ligand. The presence of this bidentate ligand leads to a neutral complex and does not allow the 2,9-dimethyl-1,10-phenanthroline Lewis base to crystallize in the produced network. The asymmetric unit of compound, [Zn(2,3-pydcH)2(H2O)2] is presented in Figure 1. The metal center is hexacoordinated by two (2,3-pydcH)- bidentate ligand and two water molecules. The geometry around ZnII center is distorted octahedral. The four donor atoms of the two (2,3-pydcH)- anions form a square planar arrangement around ZnII center. The rings are almost coplanar (RMS deviation 0.0057 Å). In construction of this crystal which has an infinite three dimensional framework based on [100], [001] and [010] vectors, the hydrogen bonding intermolecular interactions play the essential role. The stabilizing interactions existing in the crystal lattice are intermolecular O–H···O and very strong intramolecular O–H···O type hydrogen bonds.
Hydrogen atoms of coordinated water molecules participate in hydrogen bonded chains described by C22(12) and C11(8) graph set descriptors. Thus, the three-dimensional supramolecule structure for [Zn(2,3-pydcH)2(H2O)2] is confirmed.