Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680704901X/bg2112sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S160053680704901X/bg2112Isup2.hkl |
CCDC reference: 667145
An aqueous solution (16 ml) of 4-aminobenzenesulfonic acid (1 mmol) was added to solid Ag2CO3 (0.5 mmol) and stirred for several minutes until no further CO2 was given off. The 2,3-diethylpyrazine (1 mmol) was then added and a precipitate was formed. The precipitate was dissolved by ammonium hydroxide. Crystals of (I) were obtained by evaporation of the solution for one week at room temperature.
H atoms of C atoms were positioned geometrically (C—H = 0.93 Å) and refined as riding, with Uiso(H)=1.2Ueq(carrier). H atoms bonded to N atom were located in a difference map and refined freely, and with Uiso(H) = 1.2Ueq(N).
Silver(I) sulfonate coordination polymers have received much attention for their interesting structural features and potential application (Cote & Shimizu, 2003). Recently, silver(I) sulfonate compounds with nitrogen-based secondary ligands have been studied (Liu et al., 2007). Herein, we present a new sulfonate coordination polymer, namely [Ag(dep)(L)] (I), where dep = 2,3-diethylpyrazine and HL= 4-aminobenzenesulfonic acid. To our knowledge, this is the first complex reported which contains dep as a ligand.
Selected parameters are listed in Table 1. The AgI cation is four-coordinated by three N atoms from two different dep ligands and one –NH2 group of L, and one sulfonate O atom in a distorted tetrahedral coordination geometry (Fig. 1). The Ag—N distances in (I) are similar to those in related compounds (Liu et al., 2007). The AgI centers are doubly bridged by both types of ligands to form a one-dimensional chain (Fig. 2). Finally, N—H···O hydrogen bonds complete the structure of (I) (Table 2).
For studies on silver sulfonates, see Liu et al., (2007). For related literature, see: Cote & Shimizu (2003).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell refinement: PROCESS-AUTO (Rigaku, 1998); data reduction: PROCESS-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL-Plus (Sheldrick, 1990); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).
[Ag(C6H6NO3S)(C8H8N2)] | F(000) = 840 |
Mr = 416.24 | Dx = 1.817 Mg m−3 |
Orthorhombic, Pca21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2ac | Cell parameters from 11246 reflections |
a = 8.6095 (17) Å | θ = 3.0–27.5° |
b = 12.322 (3) Å | µ = 1.48 mm−1 |
c = 14.342 (3) Å | T = 293 K |
V = 1521.5 (5) Å3 | Block, colourless |
Z = 4 | 0.31 × 0.22 × 0.17 mm |
Rigaku R-AXIS RAPID CCD diffractometer | 3443 independent reflections |
Radiation source: rotating anode | 2756 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.5°, θmin = 3.2° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −15→15 |
Tmin = 0.626, Tmax = 0.779 | l = −18→18 |
13887 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.034 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.079 | w = 1/[σ2(Fo2) + (0.0361P)2 + 0.2752P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.001 |
3443 reflections | Δρmax = 0.68 e Å−3 |
207 parameters | Δρmin = −0.31 e Å−3 |
3 restraints | Absolute structure: Flack (1983) |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.02 (4) |
[Ag(C6H6NO3S)(C8H8N2)] | V = 1521.5 (5) Å3 |
Mr = 416.24 | Z = 4 |
Orthorhombic, Pca21 | Mo Kα radiation |
a = 8.6095 (17) Å | µ = 1.48 mm−1 |
b = 12.322 (3) Å | T = 293 K |
c = 14.342 (3) Å | 0.31 × 0.22 × 0.17 mm |
Rigaku R-AXIS RAPID CCD diffractometer | 3443 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2756 reflections with I > 2σ(I) |
Tmin = 0.626, Tmax = 0.779 | Rint = 0.040 |
13887 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.079 | Δρmax = 0.68 e Å−3 |
S = 1.05 | Δρmin = −0.31 e Å−3 |
3443 reflections | Absolute structure: Flack (1983) |
207 parameters | Absolute structure parameter: 0.02 (4) |
3 restraints |
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 | ||
Ag1 | 0.75241 (4) | 0.26431 (3) | 0.84998 (7) | 0.04695 (10) | |
N2 | 0.7161 (4) | 0.2166 (3) | 0.6974 (3) | 0.0320 (8) | |
N3 | 0.5572 (4) | 0.3870 (4) | 0.8990 (2) | 0.0418 (9) | |
C2 | 0.3331 (4) | 0.3028 (3) | 1.1066 (3) | 0.0314 (7) | |
H2 | 0.2491 | 0.2583 | 1.1208 | 0.038* | |
C1 | 0.4096 (4) | 0.3569 (4) | 1.1770 (2) | 0.0309 (9) | |
C5 | 0.5817 (5) | 0.4358 (4) | 1.0639 (3) | 0.0370 (10) | |
H5 | 0.6650 | 0.4808 | 1.0493 | 0.044* | |
C4 | 0.5046 (4) | 0.3807 (3) | 0.9936 (3) | 0.0329 (8) | |
C3 | 0.3805 (4) | 0.3143 (4) | 1.0149 (3) | 0.0335 (10) | |
H3 | 0.3287 | 0.2773 | 0.9677 | 0.040* | |
C15 | 0.6074 (5) | 0.2709 (4) | 0.6484 (3) | 0.0379 (12) | |
H15 | 0.5352 | 0.3134 | 0.6800 | 0.046* | |
C16 | 0.8158 (4) | 0.1530 (4) | 0.6489 (3) | 0.0297 (9) | |
C17 | 0.9340 (5) | 0.0913 (4) | 0.7056 (3) | 0.0369 (10) | |
H17A | 1.0324 | 0.0920 | 0.6727 | 0.044* | |
H17B | 0.9489 | 0.1284 | 0.7646 | 0.044* | |
C18 | 0.8893 (6) | −0.0230 (5) | 0.7244 (4) | 0.0603 (15) | |
H18A | 0.9691 | −0.0576 | 0.7606 | 0.090* | |
H18B | 0.8766 | −0.0609 | 0.6664 | 0.090* | |
H18C | 0.7933 | −0.0245 | 0.7584 | 0.090* | |
C6 | 0.5349 (5) | 0.4242 (4) | 1.1560 (3) | 0.0360 (10) | |
H6 | 0.5868 | 0.4610 | 1.2032 | 0.043* | |
O2 | 0.2572 (3) | 0.4407 (3) | 1.3140 (2) | 0.0509 (8) | |
O3 | 0.4825 (3) | 0.3370 (3) | 1.3513 (2) | 0.0602 (9) | |
O1 | 0.2466 (4) | 0.2486 (3) | 1.2958 (3) | 0.0693 (14) | |
S1 | 0.34471 (10) | 0.34335 (8) | 1.29348 (7) | 0.0329 (2) | |
C10 | 0.6010 (5) | 0.2649 (4) | 0.5534 (3) | 0.0349 (11) | |
H10 | 0.5247 | 0.3036 | 0.5217 | 0.042* | |
N1 | 0.7017 (4) | 0.2050 (4) | 0.5049 (3) | 0.0334 (8) | |
C11 | 0.8082 (5) | 0.1482 (4) | 0.5518 (3) | 0.0325 (10) | |
C12 | 0.9145 (5) | 0.0780 (4) | 0.4936 (3) | 0.0429 (11) | |
H12A | 1.0060 | 0.0605 | 0.5301 | 0.051* | |
H12B | 0.9483 | 0.1193 | 0.4397 | 0.051* | |
C13 | 0.8404 (7) | −0.0264 (5) | 0.4606 (4) | 0.0612 (15) | |
H13A | 0.9143 | −0.0670 | 0.4246 | 0.092* | |
H13B | 0.7516 | −0.0098 | 0.4227 | 0.092* | |
H13C | 0.8084 | −0.0684 | 0.5135 | 0.092* | |
HN1 | 0.475 (3) | 0.378 (4) | 0.866 (3) | 0.054 (15)* | |
HN2 | 0.605 (5) | 0.447 (2) | 0.895 (4) | 0.064 (17)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ag1 | 0.04408 (15) | 0.0751 (2) | 0.02168 (13) | −0.00020 (18) | 0.00003 (12) | −0.0028 (3) |
N2 | 0.0346 (16) | 0.039 (2) | 0.0222 (18) | 0.0021 (16) | −0.0005 (16) | 0.0016 (16) |
N3 | 0.040 (2) | 0.058 (3) | 0.0277 (17) | 0.0066 (18) | 0.0032 (16) | 0.0097 (17) |
C2 | 0.0300 (16) | 0.0350 (19) | 0.0292 (18) | −0.0006 (13) | 0.000 (2) | 0.0033 (19) |
C1 | 0.0307 (18) | 0.038 (3) | 0.0240 (17) | 0.0030 (16) | 0.0004 (14) | −0.0017 (17) |
C5 | 0.035 (2) | 0.033 (3) | 0.043 (2) | −0.0019 (18) | 0.0019 (19) | 0.0040 (18) |
C4 | 0.0346 (19) | 0.037 (2) | 0.0274 (17) | 0.0097 (17) | 0.0035 (16) | 0.0046 (17) |
C3 | 0.0314 (19) | 0.042 (3) | 0.027 (2) | 0.0023 (17) | −0.0059 (16) | −0.0020 (18) |
C15 | 0.032 (2) | 0.051 (4) | 0.030 (2) | 0.009 (2) | 0.001 (2) | −0.004 (2) |
C16 | 0.028 (2) | 0.035 (3) | 0.0264 (19) | 0.0024 (19) | −0.0020 (17) | −0.0008 (18) |
C17 | 0.035 (2) | 0.039 (3) | 0.037 (2) | 0.0042 (18) | −0.0093 (19) | 0.0038 (19) |
C18 | 0.070 (3) | 0.044 (3) | 0.067 (3) | 0.000 (3) | −0.022 (3) | 0.017 (3) |
C6 | 0.039 (2) | 0.036 (3) | 0.034 (2) | 0.0005 (18) | −0.0047 (18) | −0.0021 (18) |
O2 | 0.0565 (18) | 0.057 (2) | 0.0394 (16) | 0.0259 (15) | 0.0059 (13) | −0.0043 (14) |
O3 | 0.0433 (15) | 0.109 (3) | 0.0280 (14) | 0.0254 (17) | −0.0057 (14) | 0.007 (2) |
O1 | 0.109 (4) | 0.060 (3) | 0.039 (2) | −0.040 (2) | 0.027 (2) | −0.0145 (15) |
S1 | 0.0359 (4) | 0.0391 (5) | 0.0235 (4) | 0.0027 (4) | −0.0001 (4) | −0.0027 (4) |
C10 | 0.032 (2) | 0.041 (3) | 0.032 (2) | 0.008 (2) | −0.0043 (18) | 0.0017 (19) |
N1 | 0.0310 (16) | 0.044 (2) | 0.0247 (19) | −0.0011 (18) | 0.0029 (17) | 0.0011 (17) |
C11 | 0.031 (2) | 0.036 (3) | 0.031 (2) | −0.003 (2) | 0.0013 (17) | 0.0013 (18) |
C12 | 0.034 (2) | 0.056 (3) | 0.039 (2) | 0.003 (2) | 0.0070 (19) | −0.007 (2) |
C13 | 0.060 (3) | 0.064 (4) | 0.060 (3) | −0.005 (3) | 0.011 (3) | −0.028 (3) |
Ag1—N2 | 2.287 (4) | C17—C18 | 1.486 (7) |
Ag1—N3 | 2.367 (4) | C17—H17A | 0.9700 |
Ag1—N1i | 2.372 (4) | C17—H17B | 0.9700 |
Ag1—O3ii | 2.451 (3) | C18—H18A | 0.9600 |
N2—C15 | 1.348 (6) | C18—H18B | 0.9600 |
N2—C16 | 1.355 (6) | C18—H18C | 0.9600 |
N3—C4 | 1.432 (5) | C6—H6 | 0.9300 |
N3—HN1 | 0.86 (3) | O2—S1 | 1.446 (3) |
N3—HN2 | 0.85 (3) | O3—S1 | 1.450 (3) |
C2—C1 | 1.378 (5) | O3—Ag1i | 2.451 (3) |
C2—C3 | 1.384 (6) | O1—S1 | 1.441 (3) |
C2—H2 | 0.9300 | C10—N1 | 1.334 (6) |
C1—C6 | 1.393 (6) | C10—H10 | 0.9300 |
C1—S1 | 1.769 (4) | N1—C11 | 1.335 (6) |
C5—C4 | 1.385 (6) | N1—Ag1ii | 2.372 (4) |
C5—C6 | 1.388 (6) | C11—C12 | 1.510 (6) |
C5—H5 | 0.9300 | C12—C13 | 1.512 (7) |
C4—C3 | 1.380 (6) | C12—H12A | 0.9700 |
C3—H3 | 0.9300 | C12—H12B | 0.9700 |
C15—C10 | 1.367 (5) | C13—H13A | 0.9600 |
C15—H15 | 0.9300 | C13—H13B | 0.9600 |
C16—C11 | 1.395 (4) | C13—H13C | 0.9600 |
C16—C17 | 1.508 (6) | ||
N2—Ag1—N3 | 110.54 (13) | C16—C17—H17B | 108.8 |
N2—Ag1—N1i | 147.11 (11) | H17A—C17—H17B | 107.7 |
N3—Ag1—N1i | 92.12 (13) | C17—C18—H18A | 109.5 |
N2—Ag1—O3ii | 103.22 (13) | C17—C18—H18B | 109.5 |
N3—Ag1—O3ii | 115.15 (14) | H18A—C18—H18B | 109.5 |
N1i—Ag1—O3ii | 87.14 (12) | C17—C18—H18C | 109.5 |
C15—N2—C16 | 117.3 (4) | H18A—C18—H18C | 109.5 |
C15—N2—Ag1 | 117.8 (3) | H18B—C18—H18C | 109.5 |
C16—N2—Ag1 | 123.6 (3) | C5—C6—C1 | 119.5 (4) |
C4—N3—Ag1 | 118.1 (3) | C5—C6—H6 | 120.2 |
C4—N3—HN1 | 104 (3) | C1—C6—H6 | 120.2 |
Ag1—N3—HN1 | 110 (3) | S1—O3—Ag1i | 141.0 (2) |
C4—N3—HN2 | 105 (4) | O1—S1—O2 | 111.2 (2) |
Ag1—N3—HN2 | 101 (4) | O1—S1—O3 | 115.0 (3) |
HN1—N3—HN2 | 118 (5) | O2—S1—O3 | 110.8 (2) |
C1—C2—C3 | 120.4 (4) | O1—S1—C1 | 106.5 (2) |
C1—C2—H2 | 119.8 | O2—S1—C1 | 106.1 (2) |
C3—C2—H2 | 119.8 | O3—S1—C1 | 106.67 (18) |
C2—C1—C6 | 119.9 (3) | N1—C10—C15 | 121.6 (5) |
C2—C1—S1 | 119.7 (3) | N1—C10—H10 | 119.2 |
C6—C1—S1 | 120.4 (3) | C15—C10—H10 | 119.2 |
C4—C5—C6 | 120.2 (4) | C10—N1—C11 | 118.3 (4) |
C4—C5—H5 | 119.9 | C10—N1—Ag1ii | 115.2 (3) |
C6—C5—H5 | 119.9 | C11—N1—Ag1ii | 121.2 (3) |
C3—C4—C5 | 120.0 (4) | N1—C11—C16 | 120.8 (5) |
C3—C4—N3 | 119.2 (4) | N1—C11—C12 | 116.0 (4) |
C5—C4—N3 | 120.7 (4) | C16—C11—C12 | 123.2 (5) |
C4—C3—C2 | 120.0 (4) | C11—C12—C13 | 113.8 (4) |
C4—C3—H3 | 120.0 | C11—C12—H12A | 108.8 |
C2—C3—H3 | 120.0 | C13—C12—H12A | 108.8 |
N2—C15—C10 | 121.4 (5) | C11—C12—H12B | 108.8 |
N2—C15—H15 | 119.3 | C13—C12—H12B | 108.8 |
C10—C15—H15 | 119.3 | H12A—C12—H12B | 107.7 |
N2—C16—C11 | 120.5 (5) | C12—C13—H13A | 109.5 |
N2—C16—C17 | 116.2 (3) | C12—C13—H13B | 109.5 |
C11—C16—C17 | 123.3 (5) | H13A—C13—H13B | 109.5 |
C18—C17—C16 | 113.7 (4) | C12—C13—H13C | 109.5 |
C18—C17—H17A | 108.8 | H13A—C13—H13C | 109.5 |
C16—C17—H17A | 108.8 | H13B—C13—H13C | 109.5 |
C18—C17—H17B | 108.8 | ||
N3—Ag1—N2—C15 | 8.8 (4) | C4—C5—C6—C1 | −0.2 (7) |
N1i—Ag1—N2—C15 | 139.5 (3) | C2—C1—C6—C5 | −0.1 (7) |
O3ii—Ag1—N2—C15 | −114.9 (3) | S1—C1—C6—C5 | −178.4 (4) |
N3—Ag1—N2—C16 | 175.5 (4) | Ag1i—O3—S1—O1 | 82.1 (4) |
N1i—Ag1—N2—C16 | −53.8 (5) | Ag1i—O3—S1—O2 | −150.8 (3) |
O3ii—Ag1—N2—C16 | 51.8 (4) | Ag1i—O3—S1—C1 | −35.7 (4) |
N2—Ag1—N3—C4 | 145.8 (3) | C2—C1—S1—O1 | 17.3 (4) |
N1i—Ag1—N3—C4 | −9.9 (3) | C6—C1—S1—O1 | −164.4 (4) |
O3ii—Ag1—N3—C4 | −97.7 (3) | C2—C1—S1—O2 | −101.3 (4) |
C3—C2—C1—C6 | 0.4 (6) | C6—C1—S1—O2 | 77.0 (4) |
C3—C2—C1—S1 | 178.7 (3) | C2—C1—S1—O3 | 140.5 (3) |
C6—C5—C4—C3 | 0.3 (7) | C6—C1—S1—O3 | −41.2 (4) |
C6—C5—C4—N3 | −176.3 (4) | N2—C15—C10—N1 | 0.1 (9) |
Ag1—N3—C4—C3 | −90.5 (4) | C15—C10—N1—C11 | 1.5 (8) |
Ag1—N3—C4—C5 | 86.1 (5) | C15—C10—N1—Ag1ii | −153.2 (5) |
C5—C4—C3—C2 | 0.0 (6) | C10—N1—C11—C16 | −1.2 (8) |
N3—C4—C3—C2 | 176.7 (4) | Ag1ii—N1—C11—C16 | 151.9 (4) |
C1—C2—C3—C4 | −0.3 (6) | C10—N1—C11—C12 | 177.5 (4) |
C16—N2—C15—C10 | −2.1 (8) | Ag1ii—N1—C11—C12 | −29.4 (6) |
Ag1—N2—C15—C10 | 165.5 (5) | N2—C16—C11—N1 | −0.7 (9) |
C15—N2—C16—C11 | 2.3 (8) | C17—C16—C11—N1 | −179.6 (4) |
Ag1—N2—C16—C11 | −164.4 (4) | N2—C16—C11—C12 | −179.3 (4) |
C15—N2—C16—C17 | −178.7 (4) | C17—C16—C11—C12 | 1.9 (9) |
Ag1—N2—C16—C17 | 14.5 (6) | N1—C11—C12—C13 | −77.5 (6) |
N2—C16—C17—C18 | 98.0 (5) | C16—C11—C12—C13 | 101.2 (6) |
C11—C16—C17—C18 | −83.1 (6) |
Symmetry codes: (i) −x+3/2, y, z+1/2; (ii) −x+3/2, y, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—HN2···O2iii | 0.85 (3) | 2.16 (3) | 2.923 (6) | 149 (5) |
N3—HN1···O2iv | 0.86 (3) | 2.27 (3) | 3.042 (5) | 150 (4) |
Symmetry codes: (iii) −x+1, −y+1, z−1/2; (iv) −x+1/2, y, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Ag(C6H6NO3S)(C8H8N2)] |
Mr | 416.24 |
Crystal system, space group | Orthorhombic, Pca21 |
Temperature (K) | 293 |
a, b, c (Å) | 8.6095 (17), 12.322 (3), 14.342 (3) |
V (Å3) | 1521.5 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.48 |
Crystal size (mm) | 0.31 × 0.22 × 0.17 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID CCD |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.626, 0.779 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13887, 3443, 2756 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.079, 1.05 |
No. of reflections | 3443 |
No. of parameters | 207 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.68, −0.31 |
Absolute structure | Flack (1983) |
Absolute structure parameter | 0.02 (4) |
Computer programs: PROCESS-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL-Plus (Sheldrick, 1990).
Ag1—N2 | 2.287 (4) | Ag1—N1i | 2.372 (4) |
Ag1—N3 | 2.367 (4) | Ag1—O3ii | 2.451 (3) |
Symmetry codes: (i) −x+3/2, y, z+1/2; (ii) −x+3/2, y, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—HN2···O2iii | 0.85 (3) | 2.16 (3) | 2.923 (6) | 149 (5) |
N3—HN1···O2iv | 0.86 (3) | 2.27 (3) | 3.042 (5) | 150 (4) |
Symmetry codes: (iii) −x+1, −y+1, z−1/2; (iv) −x+1/2, y, z−1/2. |
Silver(I) sulfonate coordination polymers have received much attention for their interesting structural features and potential application (Cote & Shimizu, 2003). Recently, silver(I) sulfonate compounds with nitrogen-based secondary ligands have been studied (Liu et al., 2007). Herein, we present a new sulfonate coordination polymer, namely [Ag(dep)(L)] (I), where dep = 2,3-diethylpyrazine and HL= 4-aminobenzenesulfonic acid. To our knowledge, this is the first complex reported which contains dep as a ligand.
Selected parameters are listed in Table 1. The AgI cation is four-coordinated by three N atoms from two different dep ligands and one –NH2 group of L, and one sulfonate O atom in a distorted tetrahedral coordination geometry (Fig. 1). The Ag—N distances in (I) are similar to those in related compounds (Liu et al., 2007). The AgI centers are doubly bridged by both types of ligands to form a one-dimensional chain (Fig. 2). Finally, N—H···O hydrogen bonds complete the structure of (I) (Table 2).