catena-Poly[[tris[silver(I)-μ-4,4′-bi­pyridine-κ2N:N′]] tris­(perchlorate) di­hydrate]

Hu, X.-M.; Li, F.-A.

doi:10.1107/S1600536811040153

metal-organic compounds

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ISSN: 2056-9890

Volume 67| Part 11| November 2011| Page m1505

doi:10.1107/S1600536811040153

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catena-Poly[[tris[silver(I)-μ-4,4′-bipyridine-κ²N:N′]] tris(perchlorate) dihydrate]

Xiao-Ming Hu ^a ^* and Fu-An Li ^a

^aCollege of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, Henan, People's Republic of China
^*Correspondence e-mail: xiaominghu10@163.com

(Received 4 September 2011; accepted 29 September 2011; online 8 October 2011)

In the title compound, {[Ag₃(C₁₀H₈N₂)₃](ClO₄)₃·2H₂O}_n, one of the Ag^I ions, one of the 4,4′-bipyridine (bipy) ligands and one of the perchlorate anions are each situated on a twofold rotation axis. Each Ag^I ion is coordinated by two N atoms from two bridging bipy ligands, forming chains along [101]. π–π interactions between the pyridine rings [centroid–centroid distances = 3.638 (8) and 3.688 (8) Å] connect the chains. Intermolecular O—H⋯O hydrogen bonds link the uncoordinated water molecules and the perchlorate anions.

Related literature

For background to the network topologies and applications of coordination polymers, see: Du et al. (2007 ); Hu et al. (2003 ); Lou et al. (2005 ); Maspoch et al. (2007 ); Ockwig et al. (2005 ); Xiao et al. (2006 ). For O—H⋯O hydrogen bonds, see: Desiraju (2004 ). For π–π interactions, see: Zang et al. (2010 ).

Experimental

Crystal data

[Ag₃(C₁₀H₈N₂)₃](ClO₄)₃·2H₂O
M_r = 1126.54
Monoclinic, C 2/c
a = 21.259 (2) Å
b = 15.7647 (17) Å
c = 20.949 (3) Å
β = 148.768 (5)°
V = 3640.4 (9) Å³
Z = 4
Mo Kα radiation
μ = 1.90 mm⁻¹
T = 296 K
0.21 × 0.20 × 0.19 mm

Data collection

Bruker APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2001 ) T_min = 0.692, T_max = 0.715
7095 measured reflections
3145 independent reflections
2229 reflections with I > 2σ(I)
R_int = 0.037

Refinement

R[F² > 2σ(F²)] = 0.062
wR(F²) = 0.170
S = 1.01
3145 reflections
254 parameters
H-atom parameters constrained
Δρ_max = 1.87 e Å⁻³
Δρ_min = −1.07 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1WB⋯O4ⁱ	0.85	2.21	3.060 (15)	173
O1W—H1WA⋯O3	0.85	2.44	2.99 (3)	123
Symmetry code: (i) $[x-{\script{1\over 2}}, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]$ .

Data collection: APEX2 (Bruker, 2007 ); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; 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: SHELXTL (Sheldrick, 2008).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536811040153/hy2472sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536811040153/hy2472Isup2.hkl

checkCIF report

Comment top

In recent years, supramolecular coordination assemblies have received much attention not only for their variety of architectures but also for potential applications as functional materials (Maspoch et al., 2007; Ockwig et al., 2005). According to literature, 4,4'-bipyridine (bipy) is a good bridging ligand to construct coordination polymers, by which many supramolecular structures have been furnished (Hu et al., 2003; Lou et al., 2005; Xiao et al., 2006). The rational assembly of target metal-organic networks depends on the deliberate designs of ligands with adjustable connectivity and a reasonable choice of metal ions with specific coordination nature. Additionally, the use of auxiliary ligands is also an effective method for the construction of coordination polymers (Du et al., 2007). To further explore the influence of N-donor ligands on the properties and construction of coordination polymer, we undertake synthetic and structural studies on an Ag(I) complex based on bipy.

As shown in Fig. 1, the asymmetric unit of the title compound consists of one and a half Ag^I ions, one and a half bipy ligands, one water molecule and one and a half perchlorate anions. Each Ag^I ion is two-coordinated by two N atoms from two bipy ligands, forming two different one-dimensional chains. Ag2 atom has close contacts with the water molecule and perchlorate anions [Ag2···O1Wⁱ = 2.872 (9), Ag2···O1ⁱⁱ = 2.84 (3), Ag···O6ⁱⁱⁱ = 2.91 (1) Å. Symmetry codes: (i) 1/2+x, 1/2-y, 1/2+z; (ii) 3/2-x, 1/2-y, 1-z; (iii) 1-x, -y, 1-z]. The chains are further linked by π–π stacking interactions between different pyridine rings [centroid–centroid distances = 3.638 (8) and 3.688 (8) Å] (Zang et al., 2010), resulting in a two-dimensional supramolecular structure in the ac plane (Fig. 2). The two-dimensional supramolecular structures which have positive charge are linked by Ag···O contacts and electrostatic attraction with the perchlorate anions, forming a three-dimensional supramolecular structure. O—H···O hydrogen bonds (Table 1) (Desiraju, 2004) link the lattice water molecules and perchlorate anions (Fig. 3).

Related literature top

For background to the network topologies and applications of coordination polymers, see: Du et al. (2007); Hu et al. (2003); Lou et al. (2005); Maspoch et al. (2007); Ockwig et al. (2005); Xiao et al. (2006). For O—H···O hydrogen bonds, see: Desiraju (2004). For π–π interactions, see: Zang et al. (2010).

Experimental top

A mixture of AgClO₄.6H₂O (6.3 mg, 0.02 mmol), 4,4'-bipyridine (3.12 mg, 0.02 mmol) in a 10 ml mixed solution of H₂O and ethanol (v/v = 1:3) and 5 drops of ammonia was sealed in a stainless-steel reactor with a Teflon liner and heated at 393 K for 72 h. A quantity of colorless single crystals were obtained after the mixture was cooled to room temperature at a rate of 10 K h^-1.

Computing details top

Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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: SHELXTL (Sheldrick, 2008).

Figures top

	Fig. 1. The asymmetric unit of the title compound. Displacement ellipsoids are drawn at the 50% probability level. H atoms are omitted for clarity. [Symmetry codes: (i) -x, y, -z-1/2; (ii) x+1, y, z+1; (iii) -x+1, y, -z+1/2.]
	Fig. 2. Two-dimensional supramolecular structure in the title compound. Dashed lines indicate π–π interactions.
	Fig. 3. Three-dimensional supramolecular structure of the title compound. Dashed lines indicate π–π interactions and hydrogen bonds.

catena-Poly[tris[silver(I)-µ-4,4'-bipyridine-κ²N:N'] tris(perchlorate) dihydrate] top

Crystal data top

[Ag₃(C₁₀H₈N₂)₃](ClO₄)₃·2H₂O	F(000) = 2216
M_r = 1126.54	D_x = 2.056 Mg m⁻³
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 2263 reflections
a = 21.259 (2) Å	θ = 3.1–29.0°
b = 15.7647 (17) Å	µ = 1.90 mm⁻¹
c = 20.949 (3) Å	T = 296 K
β = 148.768 (5)°	Block, colorless
V = 3640.4 (9) Å³	0.21 × 0.20 × 0.19 mm
Z = 4

Data collection top

Bruker APEXII CCD diffractometer	3145 independent reflections
Radiation source: fine-focus sealed tube	2229 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.037
ϕ and ω scans	θ_max = 25.0°, θ_min = 3.2°
Absorption correction: multi-scan (SADABS; Bruker, 2001)	h = −25→25
T_min = 0.692, T_max = 0.715	k = −12→18
7095 measured reflections	l = −23→24

Refinement top

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)] = 0.062	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.170	H-atom parameters constrained
S = 1.01	w = 1/[σ²(F_o²) + (0.0911P)²] where P = (F_o² + 2F_c²)/3
3145 reflections	(Δ/σ)_max = 0.001
254 parameters	Δρ_max = 1.87 e Å⁻³
0 restraints	Δρ_min = −1.07 e Å⁻³

Crystal data top

[Ag₃(C₁₀H₈N₂)₃](ClO₄)₃·2H₂O	V = 3640.4 (9) Å³
M_r = 1126.54	Z = 4
Monoclinic, C2/c	Mo Kα radiation
a = 21.259 (2) Å	µ = 1.90 mm⁻¹
b = 15.7647 (17) Å	T = 296 K
c = 20.949 (3) Å	0.21 × 0.20 × 0.19 mm
β = 148.768 (5)°

Data collection top

Bruker APEXII CCD diffractometer	3145 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2001)	2229 reflections with I > 2σ(I)
T_min = 0.692, T_max = 0.715	R_int = 0.037
7095 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.062	0 restraints
wR(F²) = 0.170	H-atom parameters constrained
S = 1.01	Δρ_max = 1.87 e Å⁻³
3145 reflections	Δρ_min = −1.07 e Å⁻³
254 parameters

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
Ag1	0.0000	0.45375 (5)	−0.2500	0.0566 (3)
Ag2	0.59795 (4)	0.05250 (4)	0.68999 (4)	0.0558 (3)
O1	0.9612 (11)	0.3396 (11)	0.2576 (10)	0.320 (11)
O2	1.0878 (12)	0.2447 (7)	0.3549 (11)	0.225 (6)
O3	0.2999 (8)	0.2382 (7)	0.1888 (9)	0.183 (5)
O4	0.4471 (17)	0.2642 (6)	0.3825 (14)	0.279 (8)
O5	0.4822 (10)	0.2063 (8)	0.3197 (13)	0.240 (6)
O6	0.3993 (6)	0.1309 (6)	0.3237 (6)	0.147 (3)
O1W	0.1272 (4)	0.2966 (4)	0.1401 (5)	0.0789 (16)
H1WB	0.0798	0.2751	0.0713	0.118*
H1WA	0.2000	0.2788	0.2016	0.118*
N1	0.1878 (5)	0.4546 (3)	−0.0596 (5)	0.0465 (14)
N2	0.4098 (5)	0.0531 (3)	0.4983 (5)	0.0404 (12)
N3	−0.2117 (4)	0.0492 (3)	−0.1224 (5)	0.0410 (13)
C1	0.2488 (6)	0.5264 (4)	−0.0009 (6)	0.0390 (14)
H1	0.2081	0.5774	−0.0424	0.047*
C2	0.3715 (6)	0.5285 (4)	0.1205 (6)	0.0386 (14)
H2	0.4115	0.5803	0.1582	0.046*
C3	0.4347 (5)	0.4539 (4)	0.1856 (5)	0.0318 (13)
C4	0.3680 (6)	0.3788 (4)	0.1220 (7)	0.0522 (17)
H4	0.4053	0.3266	0.1612	0.063*
C5	0.2469 (6)	0.3825 (5)	0.0010 (6)	0.0560 (19)
H5	0.2044	0.3319	−0.0402	0.067*
C6	0.3549 (6)	−0.0171 (4)	0.4321 (6)	0.0480 (16)
H6	0.3989	−0.0675	0.4706	0.058*
C7	0.2379 (5)	−0.0197 (4)	0.3112 (5)	0.0459 (16)
H7	0.2051	−0.0703	0.2679	0.055*
C8	0.1676 (5)	0.0518 (3)	0.2521 (5)	0.0295 (13)
C9	0.2230 (6)	0.1252 (4)	0.3215 (6)	0.0461 (16)
H9	0.1792	0.1755	0.2862	0.055*
C10	0.3441 (6)	0.1232 (4)	0.4441 (6)	0.0524 (17)
H10	0.3805	0.1729	0.4900	0.063*
C11	0.0359 (5)	0.0509 (3)	0.1213 (5)	0.0279 (12)
C12	−0.0267 (5)	−0.0238 (4)	0.0584 (5)	0.0318 (13)
H12	0.0135	−0.0754	0.0971	0.038*
C13	−0.1494 (5)	−0.0225 (4)	−0.0625 (5)	0.0382 (14)
H13	−0.1898	−0.0737	−0.1032	0.046*
C14	−0.1510 (6)	0.1215 (4)	−0.0627 (6)	0.0534 (18)
H14	−0.1926	0.1725	−0.1033	0.064*
C15	−0.0293 (5)	0.1237 (4)	0.0570 (6)	0.0490 (17)
H15	0.0094	0.1759	0.0948	0.059*
Cl1	1.0000	0.28764 (14)	0.2500	0.0493 (6)
Cl2	0.41235 (16)	0.21081 (11)	0.30907 (16)	0.0539 (5)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Ag1	0.0280 (4)	0.0644 (6)	0.0340 (5)	0.000	0.0197 (4)	0.000
Ag2	0.0251 (3)	0.0706 (5)	0.0256 (3)	0.0006 (2)	0.0144 (3)	0.0007 (2)
O1	0.233 (13)	0.47 (2)	0.132 (8)	0.233 (16)	0.137 (10)	0.076 (12)
O2	0.310 (15)	0.146 (9)	0.195 (10)	0.143 (9)	0.212 (11)	0.116 (7)
O3	0.136 (6)	0.223 (12)	0.165 (8)	0.107 (8)	0.125 (7)	0.141 (8)
O4	0.51 (2)	0.090 (7)	0.279 (15)	−0.072 (11)	0.343 (19)	−0.066 (9)
O5	0.218 (9)	0.225 (13)	0.388 (15)	0.090 (10)	0.277 (12)	0.107 (12)
O6	0.101 (5)	0.110 (7)	0.090 (5)	−0.024 (5)	0.060 (5)	0.013 (4)
O1W	0.069 (3)	0.069 (4)	0.076 (4)	0.002 (3)	0.058 (3)	0.003 (3)
N1	0.033 (3)	0.048 (4)	0.035 (3)	0.002 (2)	0.025 (3)	0.002 (3)
N2	0.027 (3)	0.040 (3)	0.032 (3)	0.000 (2)	0.022 (3)	0.003 (2)
N3	0.017 (2)	0.051 (4)	0.020 (3)	0.001 (2)	0.010 (2)	0.006 (2)
C1	0.037 (3)	0.034 (3)	0.039 (3)	−0.001 (3)	0.032 (3)	−0.003 (3)
C2	0.042 (3)	0.030 (3)	0.038 (3)	0.001 (3)	0.033 (3)	−0.001 (3)
C3	0.027 (3)	0.041 (4)	0.030 (3)	0.000 (2)	0.024 (3)	0.000 (3)
C4	0.040 (3)	0.031 (4)	0.051 (4)	0.000 (3)	0.033 (3)	0.001 (3)
C5	0.043 (4)	0.042 (4)	0.043 (4)	−0.006 (4)	0.030 (4)	−0.007 (4)
C6	0.035 (3)	0.043 (4)	0.034 (3)	0.012 (3)	0.024 (3)	0.004 (3)
C7	0.032 (3)	0.043 (4)	0.027 (3)	0.003 (3)	0.019 (3)	−0.006 (3)
C8	0.023 (3)	0.033 (3)	0.023 (3)	−0.002 (2)	0.018 (3)	0.000 (2)
C9	0.038 (3)	0.023 (3)	0.039 (4)	−0.007 (3)	0.027 (3)	−0.001 (3)
C10	0.034 (3)	0.037 (4)	0.037 (4)	−0.009 (3)	0.022 (3)	−0.006 (3)
C11	0.022 (3)	0.028 (3)	0.019 (3)	−0.004 (2)	0.015 (3)	−0.002 (2)
C12	0.024 (3)	0.031 (3)	0.029 (3)	0.005 (2)	0.020 (3)	0.003 (3)
C13	0.026 (3)	0.041 (3)	0.022 (3)	−0.004 (3)	0.017 (3)	−0.007 (3)
C14	0.029 (3)	0.035 (4)	0.027 (3)	0.004 (3)	0.013 (3)	0.010 (3)
C15	0.036 (3)	0.031 (4)	0.029 (3)	−0.004 (3)	0.020 (3)	0.005 (3)
Cl1	0.0637 (15)	0.0265 (11)	0.0578 (15)	0.000	0.0520 (14)	0.000
Cl2	0.0567 (11)	0.0389 (9)	0.0568 (11)	0.0052 (8)	0.0470 (10)	0.0060 (8)

Geometric parameters (Å, º) top

Ag1—N1	2.149 (6)	C3—C4	1.400 (8)
Ag1—N1ⁱ	2.149 (6)	C3—C3ⁱⁱⁱ	1.475 (12)
Ag2—N3ⁱⁱ	2.151 (5)	C4—C5	1.378 (10)
Ag2—N2	2.158 (6)	C4—H4	0.9300
O1—Cl1	1.27 (3)	C5—H5	0.9300
O2—Cl1	1.325 (9)	C6—C7	1.353 (8)
O3—Cl2	1.396 (8)	C6—H6	0.9300
O4—Cl2	1.295 (10)	C7—C8	1.368 (8)
O5—Cl2	1.30 (3)	C7—H7	0.9300
O6—Cl2	1.379 (8)	C8—C9	1.383 (8)
O1W—H1WB	0.8500	C8—C11	1.492 (8)
O1W—H1WA	0.8500	C9—C10	1.385 (9)
N1—C1	1.323 (8)	C9—H9	0.9300
N1—C5	1.324 (9)	C10—H10	0.9300
N2—C6	1.320 (8)	C11—C15	1.364 (8)
N2—C10	1.323 (8)	C11—C12	1.377 (8)
N3—C13	1.328 (8)	C12—C13	1.386 (7)
N3—C14	1.329 (8)	C12—H12	0.9300
C1—C2	1.389 (9)	C13—H13	0.9300
C1—H1	0.9300	C14—C15	1.374 (8)
C2—C3	1.383 (8)	C14—H14	0.9300
C2—H2	0.9300	C15—H15	0.9300

N1—Ag1—N1ⁱ	179.3 (3)	C9—C8—C11	120.8 (5)
N3ⁱⁱ—Ag2—N2	176.36 (19)	C8—C9—C10	119.5 (6)
H1WB—O1W—H1WA	115.0	C8—C9—H9	120.3
C1—N1—C5	118.1 (6)	C10—C9—H9	120.3
C1—N1—Ag1	121.3 (4)	N2—C10—C9	122.4 (6)
C5—N1—Ag1	120.5 (5)	N2—C10—H10	118.8
C6—N2—C10	117.6 (6)	C9—C10—H10	118.8
C6—N2—Ag2	121.2 (4)	C15—C11—C12	116.1 (6)
C10—N2—Ag2	121.1 (4)	C15—C11—C8	122.1 (5)
C13—N3—C14	117.3 (5)	C12—C11—C8	121.7 (5)
C13—N3—Ag2^iv	123.0 (4)	C11—C12—C13	120.3 (6)
C14—N3—Ag2^iv	119.7 (4)	C11—C12—H12	119.9
N1—C1—C2	122.4 (6)	C13—C12—H12	119.9
N1—C1—H1	118.8	N3—C13—C12	122.5 (6)
C2—C1—H1	118.8	N3—C13—H13	118.7
C3—C2—C1	120.4 (6)	C12—C13—H13	118.7
C3—C2—H2	119.8	N3—C14—C15	122.5 (6)
C1—C2—H2	119.8	N3—C14—H14	118.8
C2—C3—C4	116.2 (6)	C15—C14—H14	118.8
C2—C3—C3ⁱⁱⁱ	121.7 (4)	C11—C15—C14	121.2 (6)
C4—C3—C3ⁱⁱⁱ	122.1 (4)	C11—C15—H15	119.4
C5—C4—C3	119.6 (6)	C14—C15—H15	119.4
C5—C4—H4	120.2	O1^v—Cl1—O1	99.3 (17)
C3—C4—H4	120.2	O1^v—Cl1—O2^v	105.5 (7)
N1—C5—C4	123.3 (6)	O1—Cl1—O2^v	113.2 (9)
N1—C5—H5	118.4	O1^v—Cl1—O2	113.2 (9)
C4—C5—H5	118.4	O1—Cl1—O2	105.5 (7)
N2—C6—C7	123.4 (6)	O2^v—Cl1—O2	118.6 (12)
N2—C6—H6	118.3	O4—Cl2—O5	115.0 (10)
C7—C6—H6	118.3	O4—Cl2—O6	110.4 (7)
C6—C7—C8	120.5 (6)	O5—Cl2—O6	109.2 (6)
C6—C7—H7	119.8	O4—Cl2—O3	107.5 (9)
C8—C7—H7	119.8	O5—Cl2—O3	105.6 (7)
C7—C8—C9	116.7 (6)	O6—Cl2—O3	108.9 (5)
C7—C8—C11	122.5 (5)

C5—N1—C1—C2	0.5 (10)	C6—N2—C10—C9	−2.1 (10)
Ag1—N1—C1—C2	−177.1 (4)	Ag2—N2—C10—C9	−179.5 (5)
N1—C1—C2—C3	−0.8 (9)	C8—C9—C10—N2	−0.1 (10)
C1—C2—C3—C4	0.2 (9)	C7—C8—C11—C15	−169.4 (6)
C1—C2—C3—C3ⁱⁱⁱ	179.6 (6)	C9—C8—C11—C15	14.1 (9)
C2—C3—C4—C5	0.8 (10)	C7—C8—C11—C12	10.0 (9)
C3ⁱⁱⁱ—C3—C4—C5	−178.7 (7)	C9—C8—C11—C12	−166.5 (5)
C1—N1—C5—C4	0.5 (11)	C15—C11—C12—C13	−1.4 (8)
Ag1—N1—C5—C4	178.1 (6)	C8—C11—C12—C13	179.1 (5)
C3—C4—C5—N1	−1.1 (11)	C14—N3—C13—C12	1.3 (9)
C10—N2—C6—C7	4.0 (10)	Ag2^iv—N3—C13—C12	179.9 (4)
Ag2—N2—C6—C7	−178.7 (5)	C11—C12—C13—N3	−0.1 (9)
N2—C6—C7—C8	−3.6 (11)	C13—N3—C14—C15	−1.0 (10)
C6—C7—C8—C9	1.2 (9)	Ag2^iv—N3—C14—C15	−179.7 (5)
C6—C7—C8—C11	−175.4 (6)	C12—C11—C15—C14	1.7 (9)
C7—C8—C9—C10	0.5 (9)	C8—C11—C15—C14	−178.8 (6)
C11—C8—C9—C10	177.2 (6)	N3—C14—C15—C11	−0.5 (11)

Symmetry codes: (i) −x, y, −z−1/2; (ii) x+1, y, z+1; (iii) −x+1, y, −z+1/2; (iv) x−1, y, z−1; (v) −x+2, y, −z+1/2.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1WB···O4^vi	0.85	2.21	3.060 (15)	173
O1W—H1WA···O3	0.85	2.44	2.99 (3)	123

Symmetry code: (vi) x−1/2, −y+1/2, z−1/2.

Experimental details

Crystal data
Chemical formula	[Ag₃(C₁₀H₈N₂)₃](ClO₄)₃·2H₂O
M_r	1126.54
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	296
a, b, c (Å)	21.259 (2), 15.7647 (17), 20.949 (3)
β (°)	148.768 (5)
V (Å³)	3640.4 (9)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	1.90
Crystal size (mm)	0.21 × 0.20 × 0.19

Data collection
Diffractometer	Bruker APEXII CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2001)
T_min, T_max	0.692, 0.715
No. of measured, independent and observed [I > 2σ(I)] reflections	7095, 3145, 2229
R_int	0.037
(sin θ/λ)_max (Å⁻¹)	0.595

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.062, 0.170, 1.01
No. of reflections	3145
No. of parameters	254
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.87, −1.07

Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 1999), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1WB···O4ⁱ	0.85	2.21	3.060 (15)	173
O1W—H1WA···O3	0.85	2.44	2.99 (3)	123

Symmetry code: (i) x−1/2, −y+1/2, z−1/2.

Acknowledgements

We thank the Science Research Foundation for High-Level Talents of Pingdingshan University (No. 2006047) for support.

References

Brandenburg, K. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Desiraju, G. R. (2004). Hydrogen Bonding. Encyclopedia of Supramolecular Chemistry, edited by J. L. Atwood & J. W. Steed, pp. 658–665. New York: Marcel Dekker Inc. Google Scholar
Du, M., Jiang, X.-J. & Zhao, X.-J. (2007). Inorg. Chem. 46, 3984–3995. Web of Science CSD CrossRef PubMed CAS Google Scholar
Hu, D.-H., Huang, W., Gou, S.-H., Fang, J.-L. & Fun, H.-K. (2003). Polyhedron, 22, 2661–2667. Web of Science CSD CrossRef CAS Google Scholar
Lou, B.-Y., Wang, R.-H., Yuan, D.-Q., Wu, B.-L., Jiang, F.-L. & Hong, M.-C. (2005). Inorg. Chem. Commun. 8, 971–974. Web of Science CSD CrossRef CAS Google Scholar
Maspoch, D., Ruiz-Molina, D. & Veciana, J. (2007). Chem. Soc. Rev. 36, 770–818. Web of Science CrossRef PubMed CAS Google Scholar
Ockwig, N. W., Delgado-Friedrichs, O., O'Keefee, M. & Yaghi, O. M. (2005). Acc. Chem. Res. 38, 176–182. Web of Science CrossRef PubMed CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Xiao, D.-R., Wang, E.-B., An, H.-Y., Li, Y.-G., Su, Z.-M. & Sun, C.-Y. (2006). Chem. Eur. J. 12, 6528–6541. Web of Science CSD CrossRef PubMed CAS Google Scholar
Zang, S.-Q., Liang, R., Fan, Y.-J., Hou, H.-W. & Mak, T. C. W. (2010). Dalton Trans. 39, 8022–8032. Web of Science CSD CrossRef CAS PubMed Google Scholar

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