metal-organic compounds
catena-Poly[[(nitrato-κ2O,O′)silver(I)]-μ-N,N′-bis(3-pyridylmethylidene)benzene-1,4-diamine]
aDepartment of Physics, Daqing Normal University, Daqing, 163712, People's Republic of China
*Correspondence e-mail: yonghaoliu1980@163.com
In the title compound, [Ag(NO3)(C18H14N4)]n, the AgI atom is coordinated by two N atoms from two N,N′-bis(3-pyridylmethylidene)benzene-1,4-diamine (bpbd) molecules and two O atoms from a bidentate nitrate anion. The bpbd molecules bridge the Ag atoms into a chain. Two adjacent chains are further connected by Ag⋯Ag interactions [3.1631 (8) Å], forming a double-chain structure. A π–π interaction [centroid–centroid distance = 3.758 (3) Å] occurs between the double chains. Interchain C—H⋯O hydrogen bonds are observed.
Related literature
For general background to metal–organic frameworks with bipyridine-type ligands, see: Biradha et al. (2006); Cunha-Silva et al. (2006); Lu et al. (2002); Ye et al. (2004).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810025997/hy2324sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810025997/hy2324Isup2.hkl
The ligand L was prepared according to the previous method (Ye et al., 2004). 1,4-Diaminobenzene (2.14 mg, 10 mmol) was dissolved in methanol (20 ml), followed by addition of 3-pyridinecarboxaldehyde (4.24 mg, 40 mmol). The mixture was stirred at room temperature for 2 h and filtered. The resulting yellow crystalline solid was washed with methanol several times and dried in air. A solution of AgNO3 (33.9 mg, 0.2 mmol) in acetonitrile (10 ml) was slowly layered onto a solution of L (117 mg, 0.625 mmol) in methylene chloride (10 ml). Diffusion between the two phases over a week produced colorless crystals.
H atoms were placed at calculated positions and refined as riding atoms, with H—C = 0.93 Å and with Uiso(H) = 1.2Ueq(C).
Bipyridine-type ligands have been extensively investigated in recent years, owing to their simple structures, readily availabilities and more predictable formation of network structures (Biradha et al., 2006; Cunha-Silva et al., 2006; Lu et al., 2002). Moreover, when introducing double Schiff-base, a great deal of metal–organic frameworks with unusual network patterns and novel properties can be achieved due to the specific geometry including the different relative orientation of N-donors and the zigzag conformation of the space moiety between the two terminal coordination groups (Ye et al., 2004).
Herein, we choose 3,3'-bipyridine-type Schiff-base as an organic linking ligand. In this simple compound, N═C—H group can act as a hydrogen bonding donor and the pyridyl N atom as an acceptor. In the title complex, the ligand takes a bidentate bridging coordination fashion and links two AgI centers with two pyridyl N atoms (Fig. 1), forming a zigzag chain, with Ag—N distances being 2.162 (2) and 2.163 (2) Å (Table 1). The two neighboring Ag atoms exhibit an Ag···Ag interaction, with a distance of 3.1631 (8) Å. The Ag atoms are also coordinated by distant nitrate O atoms [Ag—O = 2.731 (3) and 2.704 (3) Å], leading to a deviation from linearity [N—Ag—N = 159.44 (9)°]. Two adjacent chains are connected by the Ag···Ag interactions into a double-chain structure (Fig. 2). A π–π interaction [centroid–centroid distance = 3.758 (3) Å] occurs between the double-chains. Interchain C—H···O hydrogen bonds are observed (Table 2).
For general background to metal–organic frameworks with bipyridine-type ligands, see: Biradha et al. (2006); Cunha-Silva et al. (2006); Lu et al. (2002); Ye et al. (2004).
Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: RAPID-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).[Ag(NO3)(C18H14N4)] | Z = 2 |
Mr = 456.21 | F(000) = 456 |
Triclinic, P1 | Dx = 1.767 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.2148 (18) Å | Cell parameters from 3891 reflections |
b = 9.771 (2) Å | θ = 3.1–27.5° |
c = 10.800 (2) Å | µ = 1.21 mm−1 |
α = 81.51 (3)° | T = 293 K |
β = 74.27 (3)° | Block, colorless |
γ = 66.52 (3)° | 0.31 × 0.30 × 0.08 mm |
V = 857.6 (4) Å3 |
Rigaku R-AXIS RAPID diffractometer | 3891 independent reflections |
Radiation source: fine-focus sealed tube | 3163 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
Detector resolution: 10 pixels mm-1 | θmax = 27.5°, θmin = 3.1° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −12→12 |
Tmin = 0.705, Tmax = 0.908 | l = −13→14 |
8493 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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 1.10 | w = 1/[σ2(Fo2) + (0.059P)2] where P = (Fo2 + 2Fc2)/3 |
3891 reflections | (Δ/σ)max = 0.002 |
244 parameters | Δρmax = 0.72 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
[Ag(NO3)(C18H14N4)] | γ = 66.52 (3)° |
Mr = 456.21 | V = 857.6 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.2148 (18) Å | Mo Kα radiation |
b = 9.771 (2) Å | µ = 1.21 mm−1 |
c = 10.800 (2) Å | T = 293 K |
α = 81.51 (3)° | 0.31 × 0.30 × 0.08 mm |
β = 74.27 (3)° |
Rigaku R-AXIS RAPID diffractometer | 3891 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 3163 reflections with I > 2σ(I) |
Tmin = 0.705, Tmax = 0.908 | Rint = 0.019 |
8493 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 1.10 | Δρmax = 0.72 e Å−3 |
3891 reflections | Δρmin = −0.29 e Å−3 |
244 parameters |
x | y | z | Uiso*/Ueq | ||
Ag1 | 1.45799 (2) | 0.37548 (2) | 0.45603 (2) | 0.05309 (11) | |
N1 | 1.2254 (3) | 0.3738 (2) | 0.5682 (2) | 0.0379 (5) | |
N2 | 0.6797 (3) | 0.6198 (2) | 0.8049 (2) | 0.0394 (5) | |
N3 | 0.1476 (3) | 1.1322 (2) | 1.0027 (2) | 0.0451 (5) | |
N4 | −0.3549 (3) | 1.3921 (2) | 1.2898 (2) | 0.0409 (5) | |
N5 | 1.7214 (3) | 0.1260 (3) | 0.5841 (3) | 0.0519 (6) | |
O1 | 1.8206 (4) | 0.0262 (4) | 0.6349 (3) | 0.0910 (9) | |
O2 | 1.6959 (3) | 0.2598 (3) | 0.5904 (3) | 0.0794 (8) | |
O3 | 1.6440 (4) | 0.0949 (3) | 0.5224 (3) | 0.0686 (7) | |
C1 | 1.2039 (3) | 0.2446 (3) | 0.5801 (3) | 0.0447 (6) | |
H1A | 1.2915 | 0.1601 | 0.5462 | 0.054* | |
C2 | 1.0576 (4) | 0.2313 (3) | 0.6405 (3) | 0.0530 (7) | |
H2A | 1.0457 | 0.1405 | 0.6437 | 0.064* | |
C3 | 0.9290 (3) | 0.3543 (3) | 0.6960 (3) | 0.0468 (6) | |
H3A | 0.8302 | 0.3470 | 0.7394 | 0.056* | |
C4 | 0.9491 (3) | 0.4889 (3) | 0.6862 (2) | 0.0338 (5) | |
C5 | 1.0982 (3) | 0.4942 (3) | 0.6205 (2) | 0.0358 (5) | |
H5A | 1.1113 | 0.5850 | 0.6119 | 0.043* | |
C6 | 0.8148 (3) | 0.6244 (3) | 0.7420 (2) | 0.0373 (5) | |
H6A | 0.8299 | 0.7145 | 0.7306 | 0.045* | |
C7 | 0.5498 (3) | 0.7521 (3) | 0.8539 (2) | 0.0356 (5) | |
C8 | 0.4388 (3) | 0.7368 (3) | 0.9655 (3) | 0.0426 (6) | |
H8A | 0.4528 | 0.6424 | 1.0046 | 0.051* | |
C9 | 0.3077 (3) | 0.8597 (3) | 1.0195 (3) | 0.0464 (7) | |
H9A | 0.2364 | 0.8481 | 1.0960 | 0.056* | |
C10 | 0.2824 (3) | 1.0000 (3) | 0.9596 (2) | 0.0379 (5) | |
C11 | 0.3917 (4) | 1.0142 (3) | 0.8472 (3) | 0.0492 (7) | |
H11A | 0.3757 | 1.1081 | 0.8065 | 0.059* | |
C12 | 0.5248 (3) | 0.8915 (3) | 0.7937 (3) | 0.0475 (7) | |
H12A | 0.5968 | 0.9031 | 0.7176 | 0.057* | |
C13 | 0.0370 (3) | 1.1306 (3) | 1.0983 (3) | 0.0421 (6) | |
H13A | 0.0434 | 1.0412 | 1.1449 | 0.051* | |
C14 | −0.1040 (3) | 1.2686 (3) | 1.1388 (2) | 0.0372 (5) | |
C15 | −0.2228 (3) | 1.2683 (3) | 1.2502 (3) | 0.0405 (6) | |
H15A | −0.2108 | 1.1795 | 1.2992 | 0.049* | |
C16 | −0.3680 (3) | 1.5191 (3) | 1.2194 (3) | 0.0432 (6) | |
H16A | −0.4579 | 1.6051 | 1.2464 | 0.052* | |
C17 | −0.2541 (3) | 1.5289 (3) | 1.1081 (3) | 0.0456 (6) | |
H17A | −0.2665 | 1.6197 | 1.0622 | 0.055* | |
C18 | −0.1215 (3) | 1.4008 (3) | 1.0666 (3) | 0.0408 (6) | |
H18A | −0.0447 | 1.4036 | 0.9909 | 0.049* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ag1 | 0.03204 (13) | 0.06102 (16) | 0.05624 (16) | −0.01785 (10) | 0.01587 (10) | −0.02131 (11) |
N1 | 0.0264 (10) | 0.0419 (10) | 0.0382 (11) | −0.0094 (9) | 0.0035 (8) | −0.0110 (9) |
N2 | 0.0282 (10) | 0.0374 (10) | 0.0411 (11) | −0.0048 (8) | 0.0019 (9) | −0.0082 (9) |
N3 | 0.0340 (11) | 0.0366 (10) | 0.0471 (12) | −0.0048 (9) | 0.0079 (10) | −0.0068 (10) |
N4 | 0.0270 (10) | 0.0442 (11) | 0.0430 (12) | −0.0088 (9) | 0.0045 (9) | −0.0137 (10) |
N5 | 0.0433 (13) | 0.0540 (14) | 0.0494 (14) | −0.0170 (12) | 0.0032 (11) | −0.0059 (12) |
O1 | 0.0671 (18) | 0.092 (2) | 0.106 (2) | −0.0279 (16) | −0.0287 (17) | 0.0307 (18) |
O2 | 0.0651 (16) | 0.0626 (14) | 0.111 (2) | −0.0149 (12) | −0.0198 (16) | −0.0331 (14) |
O3 | 0.0859 (19) | 0.0556 (12) | 0.0735 (16) | −0.0326 (13) | −0.0263 (14) | 0.0020 (12) |
C1 | 0.0350 (13) | 0.0367 (12) | 0.0483 (15) | −0.0050 (11) | 0.0031 (11) | −0.0087 (11) |
C2 | 0.0443 (16) | 0.0356 (12) | 0.067 (2) | −0.0132 (12) | 0.0051 (14) | −0.0053 (13) |
C3 | 0.0344 (13) | 0.0434 (13) | 0.0524 (16) | −0.0143 (11) | 0.0057 (12) | −0.0025 (12) |
C4 | 0.0253 (11) | 0.0378 (11) | 0.0317 (11) | −0.0066 (9) | −0.0010 (9) | −0.0074 (10) |
C5 | 0.0282 (11) | 0.0388 (12) | 0.0369 (12) | −0.0109 (10) | −0.0007 (10) | −0.0091 (10) |
C6 | 0.0268 (11) | 0.0417 (12) | 0.0390 (13) | −0.0084 (10) | −0.0023 (10) | −0.0123 (11) |
C7 | 0.0240 (11) | 0.0386 (12) | 0.0380 (12) | −0.0080 (9) | −0.0003 (10) | −0.0071 (10) |
C8 | 0.0297 (12) | 0.0362 (12) | 0.0475 (15) | −0.0064 (10) | 0.0032 (11) | −0.0002 (11) |
C9 | 0.0316 (13) | 0.0423 (13) | 0.0453 (15) | −0.0056 (11) | 0.0096 (11) | −0.0022 (12) |
C10 | 0.0283 (12) | 0.0352 (11) | 0.0406 (13) | −0.0074 (10) | 0.0033 (10) | −0.0073 (10) |
C11 | 0.0411 (14) | 0.0357 (12) | 0.0488 (16) | −0.0065 (11) | 0.0100 (12) | 0.0018 (12) |
C12 | 0.0365 (14) | 0.0432 (13) | 0.0432 (14) | −0.0090 (11) | 0.0132 (11) | −0.0034 (12) |
C13 | 0.0336 (13) | 0.0327 (11) | 0.0468 (14) | −0.0070 (10) | 0.0049 (11) | −0.0053 (11) |
C14 | 0.0269 (11) | 0.0363 (11) | 0.0413 (13) | −0.0084 (10) | 0.0016 (10) | −0.0091 (10) |
C15 | 0.0324 (12) | 0.0390 (12) | 0.0420 (13) | −0.0117 (10) | 0.0026 (11) | −0.0044 (11) |
C16 | 0.0290 (12) | 0.0416 (13) | 0.0487 (15) | −0.0033 (10) | −0.0023 (11) | −0.0127 (12) |
C17 | 0.0398 (14) | 0.0408 (13) | 0.0461 (15) | −0.0073 (11) | −0.0069 (12) | −0.0004 (12) |
C18 | 0.0319 (12) | 0.0431 (13) | 0.0391 (13) | −0.0113 (11) | 0.0022 (10) | −0.0052 (11) |
Ag1—N1 | 2.162 (2) | C4—C6 | 1.474 (3) |
Ag1—N4i | 2.163 (2) | C5—H5A | 0.9300 |
Ag1—O2 | 2.731 (3) | C6—H6A | 0.9300 |
Ag1—O3 | 2.704 (3) | C7—C12 | 1.378 (4) |
Ag1—Ag1ii | 3.1631 (8) | C7—C8 | 1.386 (3) |
N1—C1 | 1.337 (4) | C8—C9 | 1.382 (3) |
N1—C5 | 1.347 (3) | C8—H8A | 0.9300 |
N2—C6 | 1.261 (3) | C9—C10 | 1.385 (4) |
N2—C7 | 1.417 (3) | C9—H9A | 0.9300 |
N3—C13 | 1.242 (3) | C10—C11 | 1.381 (4) |
N3—C10 | 1.419 (3) | C11—C12 | 1.388 (4) |
N4—C16 | 1.336 (4) | C11—H11A | 0.9300 |
N4—C15 | 1.351 (3) | C12—H12A | 0.9300 |
N5—O1 | 1.221 (4) | C13—C14 | 1.472 (3) |
N5—O3 | 1.240 (4) | C13—H13A | 0.9300 |
N5—O2 | 1.242 (4) | C14—C18 | 1.382 (4) |
C1—C2 | 1.378 (4) | C14—C15 | 1.390 (3) |
C1—H1A | 0.9300 | C15—H15A | 0.9300 |
C2—C3 | 1.379 (4) | C16—C17 | 1.385 (4) |
C2—H2A | 0.9300 | C16—H16A | 0.9300 |
C3—C4 | 1.385 (4) | C17—C18 | 1.382 (4) |
C3—H3A | 0.9300 | C17—H17A | 0.9300 |
C4—C5 | 1.382 (3) | C18—H18A | 0.9300 |
N1—Ag1—N4i | 159.44 (9) | C12—C7—C8 | 119.2 (2) |
N1—Ag1—Ag1ii | 111.41 (6) | C12—C7—N2 | 123.7 (2) |
N4i—Ag1—Ag1ii | 79.97 (7) | C8—C7—N2 | 117.0 (2) |
N1—Ag1—O2 | 112.93 (10) | C9—C8—C7 | 121.0 (2) |
N1—Ag1—O3 | 97.63 (10) | C9—C8—H8A | 119.5 |
N4i—Ag1—O2 | 87.07 (9) | C7—C8—H8A | 119.5 |
N4i—Ag1—O3 | 92.98 (9) | C8—C9—C10 | 120.0 (2) |
C1—N1—C5 | 117.7 (2) | C8—C9—H9A | 120.0 |
C1—N1—Ag1 | 117.05 (16) | C10—C9—H9A | 120.0 |
C5—N1—Ag1 | 125.13 (18) | C11—C10—C9 | 118.7 (2) |
C6—N2—C7 | 120.2 (2) | C11—C10—N3 | 116.5 (2) |
C13—N3—C10 | 121.8 (2) | C9—C10—N3 | 124.8 (2) |
C16—N4—C15 | 117.8 (2) | C10—C11—C12 | 121.4 (3) |
C16—N4—Ag1iii | 122.67 (17) | C10—C11—H11A | 119.3 |
C15—N4—Ag1iii | 119.45 (18) | C12—C11—H11A | 119.3 |
O1—N5—O3 | 119.9 (3) | C7—C12—C11 | 119.6 (2) |
O1—N5—O2 | 122.2 (3) | C7—C12—H12A | 120.2 |
O3—N5—O2 | 117.9 (3) | C11—C12—H12A | 120.2 |
N1—C1—C2 | 122.8 (2) | N3—C13—C14 | 120.8 (2) |
N1—C1—H1A | 118.6 | N3—C13—H13A | 119.6 |
C2—C1—H1A | 118.6 | C14—C13—H13A | 119.6 |
C1—C2—C3 | 119.1 (3) | C18—C14—C15 | 118.7 (2) |
C1—C2—H2A | 120.5 | C18—C14—C13 | 120.7 (2) |
C3—C2—H2A | 120.5 | C15—C14—C13 | 120.7 (2) |
C2—C3—C4 | 119.1 (3) | N4—C15—C14 | 122.5 (2) |
C2—C3—H3A | 120.5 | N4—C15—H15A | 118.8 |
C4—C3—H3A | 120.5 | C14—C15—H15A | 118.8 |
C5—C4—C3 | 118.3 (2) | N4—C16—C17 | 123.2 (2) |
C5—C4—C6 | 120.4 (2) | N4—C16—H16A | 118.4 |
C3—C4—C6 | 121.3 (2) | C17—C16—H16A | 118.4 |
N1—C5—C4 | 123.0 (2) | C18—C17—C16 | 118.5 (3) |
N1—C5—H5A | 118.5 | C18—C17—H17A | 120.7 |
C4—C5—H5A | 118.5 | C16—C17—H17A | 120.7 |
N2—C6—C4 | 120.9 (2) | C14—C18—C17 | 119.3 (2) |
N2—C6—H6A | 119.6 | C14—C18—H18A | 120.3 |
C4—C6—H6A | 119.6 | C17—C18—H18A | 120.3 |
Symmetry codes: (i) x+2, y−1, z−1; (ii) −x+3, −y+1, −z+1; (iii) x−2, y+1, z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1A···O3iv | 0.93 | 2.50 | 3.276 (4) | 141 |
C16—H16A···O2v | 0.93 | 2.44 | 3.280 (4) | 151 |
Symmetry codes: (iv) −x+3, −y, −z+1; (v) −x+1, −y+2, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Ag(NO3)(C18H14N4)] |
Mr | 456.21 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 9.2148 (18), 9.771 (2), 10.800 (2) |
α, β, γ (°) | 81.51 (3), 74.27 (3), 66.52 (3) |
V (Å3) | 857.6 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.21 |
Crystal size (mm) | 0.31 × 0.30 × 0.08 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.705, 0.908 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8493, 3891, 3163 |
Rint | 0.019 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.094, 1.10 |
No. of reflections | 3891 |
No. of parameters | 244 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.72, −0.29 |
Computer programs: RAPID-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 1999).
Ag1—N1 | 2.162 (2) | Ag1—O2 | 2.731 (3) |
Ag1—N4i | 2.163 (2) | Ag1—O3 | 2.704 (3) |
Symmetry code: (i) x+2, y−1, z−1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1A···O3ii | 0.93 | 2.50 | 3.276 (4) | 141 |
C16—H16A···O2iii | 0.93 | 2.44 | 3.280 (4) | 151 |
Symmetry codes: (ii) −x+3, −y, −z+1; (iii) −x+1, −y+2, −z+2. |
Acknowledgements
The authors thank the Natural Science Foundation of Heilongjiang Province (grant No. A200506), the Scientific Research Fund of Heilongjiang Provincial Education Department (grant No. 11553006) and the Doctoral Start-up Fund of Daqing Normal University (grant No. 08ZB02) for supporting this work.
References
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Ye, K.-Q., Kong, J.-F., Jiang, S.-M. & Wang, Y. (2004). J. Mol. Sci. 20, 1–5. CAS Google Scholar
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Bipyridine-type ligands have been extensively investigated in recent years, owing to their simple structures, readily availabilities and more predictable formation of network structures (Biradha et al., 2006; Cunha-Silva et al., 2006; Lu et al., 2002). Moreover, when introducing double Schiff-base, a great deal of metal–organic frameworks with unusual network patterns and novel properties can be achieved due to the specific geometry including the different relative orientation of N-donors and the zigzag conformation of the space moiety between the two terminal coordination groups (Ye et al., 2004).
Herein, we choose 3,3'-bipyridine-type Schiff-base as an organic linking ligand. In this simple compound, N═C—H group can act as a hydrogen bonding donor and the pyridyl N atom as an acceptor. In the title complex, the ligand takes a bidentate bridging coordination fashion and links two AgI centers with two pyridyl N atoms (Fig. 1), forming a zigzag chain, with Ag—N distances being 2.162 (2) and 2.163 (2) Å (Table 1). The two neighboring Ag atoms exhibit an Ag···Ag interaction, with a distance of 3.1631 (8) Å. The Ag atoms are also coordinated by distant nitrate O atoms [Ag—O = 2.731 (3) and 2.704 (3) Å], leading to a deviation from linearity [N—Ag—N = 159.44 (9)°]. Two adjacent chains are connected by the Ag···Ag interactions into a double-chain structure (Fig. 2). A π–π interaction [centroid–centroid distance = 3.758 (3) Å] occurs between the double-chains. Interchain C—H···O hydrogen bonds are observed (Table 2).