Poly[diaqua­(μ5-1H-imidazole-4,5-di­carboxyl­ato)(μ4-1H-imidazole-4,5-di­carboxyl­ato)tris­ilver(I)ytterbium(III)]

Zhu, S.-M.

doi:10.1107/S1600536812031303

metal-organic compounds

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 68| Part 8| August 2012| Pages m1073-m1074

https://doi.org/10.1107/S1600536812031303

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Poly[diaqua(μ₅-1H-imidazole-4,5-dicarboxylato)(μ₄-1H-imidazole-4,5-dicarboxylato)trisilver(I)ytterbium(III)]

Si-Ming Zhu ^a ^*

^aSchool of Light Industry and Food Science, South China University of Technology, Guangzhou 510641, People's Republic of China
^*Correspondence e-mail: simingzhu76@yahoo.com.cn

(Received 6 June 2012; accepted 10 July 2012; online 18 July 2012)

The asymmetric unit of the title compound, [Ag₃Yb(C₅HN₂O₄)₂(H₂O)₂]_n, contains three Ag^I ions, one Yb^III ion, two imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The Yb^III atom is eight-coordinated, in a bicapped trigonal prismatic coordination geometry, by six O atoms from three imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The two-coordinated Ag^I ions exhibit three types of coordination environments. One Ag^I atom is bonded to two N atoms from two different imidazole-4,5-dicarboxylate ligands. The other two Ag^I atoms are each coordinated by one O atom and one N atom from two different imidazole-4,5-dicarboxylate ligands. These metal coordination units are connected by bridging imidazole-4,5-dicarboxylate ligands, generating a two-dimensional heterometallic layer. These layers are stacked along the a axis via O—H⋯O hydrogen-bonding interactions to generate a three-dimensional framework.

Related literature

For the application of lanthanide–transition metal heterometallic complexes with bridging multifunctional organic ligands, see: Cheng et al. (2006 ); Kuang et al. (2007 ); Sun et al. (2006 ); Zhu et al. (2010 ).

Experimental

Crystal data

[Ag₃Yb(C₅HN₂O₄)₂(H₂O)₂]
M_r = 838.84
Monoclinic, C 2/c
a = 12.6850 (7) Å
b = 8.6643 (5) Å
c = 28.4015 (16) Å
β = 97.686 (1)°
V = 3093.5 (3) Å³
Z = 8
Mo Kα radiation
μ = 9.80 mm⁻¹
T = 295 K
0.20 × 0.18 × 0.17 mm

Data collection

Bruker APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ) T_min = 0.162, T_max = 0.189
7613 measured reflections
2794 independent reflections
2629 reflections with I > 2σ(I)
R_int = 0.026

Refinement

R[F² > 2σ(F²)] = 0.024
wR(F²) = 0.055
S = 1.19
2794 reflections
265 parameters
4 restraints
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.58 e Å⁻³
Δρ_min = −1.29 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1W⋯O8ⁱ	0.82 (2)	2.11 (5)	2.751 (5)	136 (6)
O1W—H2W⋯O2ⁱⁱ	0.81 (2)	2.03 (3)	2.823 (5)	165 (6)
O2W—H4W⋯O1ⁱⁱⁱ	0.81 (2)	1.88 (4)	2.634 (5)	154 (8)
Symmetry codes: (i) $[x+{\script{1\over 2}}, y+{\script{1\over 2}}, z]$ ; (ii) $[-x+{\script{1\over 2}}, -y+{\script{1\over 2}}, -z+1]$ ; (iii) -x, -y+1, -z+1.

Data collection: APEX2 (Bruker, 2004 ); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.

Supporting information

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S1600536812031303/rk2366sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812031303/rk2366Isup2.hkl

checkCIF report

Comment top

In the past few years, lanthanide-transition metal heterometallic complexs with bridging multifunctionnal organic ligands are of increasing interest, not only because of their impressive topological structures, but also due to their versatile applications in ion exchange, magnetism, bimetallic catalysis and luminescent probe (Cheng et al., 2006; Kuang et al., 2007; Sun et al., 2006; Zhu et al., 2010). As an extension of this research, the structure of the title compound, a new heterometallic coordination polymer, has been determined which is presented in this artcle.

The asymmetric unit of the title compound (Fig. 1), contains three Ag^I ions, one Yb^III ion, two imidazole-4,5-dicarboxylate ligands, and two coordinated water molecules. The Yb^III are eight-coordinated, in a bicapped trigonal prismatic coordination geometry, by six O atoms from three imidazole-4,5-dicarboxylate ligands and two coordinated water molecules. The two-coordinated Ag^I ions exhibit three types of coordination environment. One Ag^I ion is linear bonded to two N atoms from two different imidazole-4,5-dicarboxylate ligands with N2^iv-Ag3-N3 angle 176.23 (17)°. The other two Ag^I ions are coordinated in a bow-like conformation each by one O atom and one N atom from two different imidazole-4,5-dicarboxylate ligands with N-Ag-O angle 157.45 (14)° and 159.80 (14)°, respectively. These metal coordination units are connected by bridging imidazole-4,5-dicarboxylate ligands, generating a two-dimensional heterometallic layer. The two-dimensional layers are stacked along a axis via O–H···O hydrogen-bonding interactions to generate the three-dimensional framework (Table 1 and Fig. 2). Symmetry code: (iv) -x, y, -z+3/2.

Related literature top

For the application of lanthanide–transition metal heterometallic complexes with bridging multifunctional organic ligands, see: Cheng et al. (2006); Kuang et al. (2007); Sun et al. (2006); Zhu et al. (2010).

Experimental top

A mixture of AgNO₃ (0.102 g, 0.6 mmol), Yb₂O₃ (0.118 g, 0.3 mmol), imidazole-4,5-dicarboxylic acid (0.188 g, 1.2 mmol), H₂O (10 ml), and HClO₄ (0.385 mmol) was sealed in a 20 ml teflon-lined reaction vessel at 443 K for 5 days then slowly cooled to room temperature. The product was collected by filtration, washed with water and air-dried. Colourless block crystals suitable for X-ray analysis were obtained.

Structure description top

For the application of lanthanide–transition metal heterometallic complexes with bridging multifunctional organic ligands, see: Cheng et al. (2006); Kuang et al. (2007); Sun et al. (2006); Zhu et al. (2010).

Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).

Figures top

	Fig. 1. The molecular structure showing the atom numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. H atoms are presented as a small spheres of arbitrary radius. Symmetry codes: (i) -x, -y, 1-z; (ii) x, 1+y, z; (iv) -x, y, 3/2-z.
	Fig. 2. A view of the three-dimensional structure of the title compound. The hydrogen bonding interactions showed as broken lines.

Poly[diaqua(µ₅-1H-imidazole-4,5-dicarboxylato)(µ₄-1H- imidazole-4,5-dicarboxylato)trisilver(I)ytterbium(III)] top

Crystal data top

[Ag₃Yb(C₅HN₂O₄)₂(H₂O)₂]	F(000) = 3080
M_r = 838.84	D_x = 3.602 Mg m⁻³
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 4947 reflections
a = 12.6850 (7) Å	θ = 2.9–28.1°
b = 8.6643 (5) Å	µ = 9.80 mm⁻¹
c = 28.4015 (16) Å	T = 295 K
β = 97.686 (1)°	Block, colourless
V = 3093.5 (3) Å³	0.20 × 0.18 × 0.17 mm
Z = 8

Data collection top

Bruker APEXII CCD diffractometer	2794 independent reflections
Radiation source: fine-focus sealed tube	2629 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.026
φ and ω scan	θ_max = 25.2°, θ_min = 1.5°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −13→15
T_min = 0.162, T_max = 0.189	k = −10→8
7613 measured reflections	l = −34→34

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)] = 0.024	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.055	H atoms treated by a mixture of independent and constrained refinement
S = 1.19	w = 1/[σ²(F_o²) + (0.0213P)² + 8.4063P] where P = (F_o² + 2F_c²)/3
2794 reflections	(Δ/σ)_max = 0.001
265 parameters	Δρ_max = 0.58 e Å⁻³
4 restraints	Δρ_min = −1.29 e Å⁻³

Crystal data top

[Ag₃Yb(C₅HN₂O₄)₂(H₂O)₂]	V = 3093.5 (3) Å³
M_r = 838.84	Z = 8
Monoclinic, C2/c	Mo Kα radiation
a = 12.6850 (7) Å	µ = 9.80 mm⁻¹
b = 8.6643 (5) Å	T = 295 K
c = 28.4015 (16) Å	0.20 × 0.18 × 0.17 mm
β = 97.686 (1)°

Data collection top

Bruker APEXII CCD diffractometer	2794 independent reflections
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	2629 reflections with I > 2σ(I)
T_min = 0.162, T_max = 0.189	R_int = 0.026
7613 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.024	4 restraints
wR(F²) = 0.055	H atoms treated by a mixture of independent and constrained refinement
S = 1.19	Δρ_max = 0.58 e Å⁻³
2794 reflections	Δρ_min = −1.29 e Å⁻³
265 parameters

Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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.

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

	x	y	z	U_iso*/U_eq
Yb1	0.062585 (17)	0.17662 (3)	0.534835 (7)	0.01157 (8)
Ag1	−0.08531 (4)	0.52086 (5)	0.638040 (16)	0.02463 (12)
Ag2	0.18074 (4)	0.78628 (5)	0.663984 (15)	0.02278 (12)
Ag3	−0.12303 (3)	0.14446 (5)	0.739965 (13)	0.02025 (11)
C1	0.1656 (4)	0.4861 (6)	0.59111 (17)	0.0128 (11)
C2	0.1594 (4)	0.4326 (6)	0.64091 (16)	0.0114 (10)
C3	0.1486 (4)	0.4663 (6)	0.71522 (17)	0.0163 (11)
H3	0.1434	0.5143	0.7441	0.020*
C4	0.1601 (4)	0.2898 (6)	0.66262 (17)	0.0119 (10)
C5	0.1733 (4)	0.1266 (6)	0.64641 (17)	0.0120 (11)
C6	−0.0760 (4)	0.1879 (6)	0.62733 (17)	0.0121 (11)
C7	−0.0744 (4)	0.0214 (6)	0.64145 (16)	0.0124 (11)
C8	−0.0872 (4)	−0.1680 (6)	0.68906 (18)	0.0173 (12)
H8	−0.0933	−0.2230	0.7167	0.021*
C9	−0.0685 (4)	−0.1163 (6)	0.61662 (17)	0.0114 (10)
C10	−0.0598 (4)	−0.1506 (6)	0.56693 (17)	0.0121 (11)
O1	0.1765 (3)	0.6248 (4)	0.58442 (12)	0.0255 (10)
O2	0.1559 (3)	0.3874 (4)	0.55739 (12)	0.0172 (8)
O3	0.1588 (3)	0.0949 (4)	0.60304 (12)	0.0169 (8)
O4	0.1991 (3)	0.0300 (4)	0.67886 (12)	0.0196 (8)
O5	−0.1075 (3)	0.2825 (4)	0.65620 (13)	0.0200 (8)
O6	−0.0463 (3)	0.2298 (4)	0.58910 (12)	0.0171 (8)
O7	−0.0256 (3)	−0.0485 (4)	0.54003 (11)	0.0164 (8)
O8	−0.0893 (3)	−0.2776 (4)	0.54873 (12)	0.0193 (8)
N1	0.1517 (3)	0.5441 (5)	0.67471 (14)	0.0148 (9)
N2	0.1537 (4)	0.3137 (5)	0.71038 (14)	0.0149 (9)
N3	−0.0869 (3)	−0.0151 (5)	0.68748 (14)	0.0140 (9)
N4	−0.0780 (3)	−0.2366 (5)	0.64767 (14)	0.0142 (9)
O1W	0.2245 (3)	0.0680 (5)	0.51848 (13)	0.0221 (9)
H1W	0.275 (4)	0.079 (8)	0.5390 (17)	0.033*
H2W	0.249 (5)	0.075 (8)	0.4936 (13)	0.033*
O2W	−0.0917 (4)	0.2942 (6)	0.50178 (14)	0.0347 (11)
H4W	−0.130 (5)	0.298 (9)	0.4768 (15)	0.052*
H3W	−0.138 (5)	0.331 (8)	0.515 (3)	0.052*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Yb1	0.01795 (13)	0.01015 (13)	0.00699 (12)	−0.00344 (9)	0.00307 (8)	−0.00139 (8)
Ag1	0.0334 (3)	0.0086 (2)	0.0326 (3)	−0.00032 (18)	0.00726 (19)	0.00049 (18)
Ag2	0.0308 (3)	0.0085 (2)	0.0290 (2)	−0.00071 (17)	0.00390 (19)	−0.00148 (17)
Ag3	0.0304 (3)	0.0191 (2)	0.0125 (2)	0.00166 (18)	0.00737 (17)	−0.00609 (16)
C1	0.015 (3)	0.010 (3)	0.012 (2)	−0.003 (2)	−0.001 (2)	0.001 (2)
C2	0.015 (3)	0.011 (3)	0.008 (2)	0.001 (2)	0.0039 (19)	0.000 (2)
C3	0.027 (3)	0.015 (3)	0.008 (2)	0.002 (2)	0.007 (2)	−0.003 (2)
C4	0.020 (3)	0.008 (3)	0.009 (2)	−0.002 (2)	0.004 (2)	−0.0018 (19)
C5	0.010 (2)	0.012 (3)	0.014 (3)	−0.002 (2)	0.0024 (19)	−0.001 (2)
C6	0.016 (3)	0.010 (3)	0.010 (2)	−0.002 (2)	0.001 (2)	−0.001 (2)
C7	0.018 (3)	0.011 (3)	0.008 (2)	0.003 (2)	0.0023 (19)	−0.0003 (19)
C8	0.026 (3)	0.012 (3)	0.015 (3)	0.000 (2)	0.009 (2)	0.003 (2)
C9	0.012 (3)	0.008 (3)	0.015 (2)	−0.003 (2)	0.004 (2)	0.002 (2)
C10	0.011 (3)	0.011 (3)	0.013 (2)	−0.001 (2)	−0.001 (2)	0.001 (2)
O1	0.052 (3)	0.010 (2)	0.0124 (19)	−0.0062 (18)	−0.0007 (18)	0.0020 (15)
O2	0.030 (2)	0.014 (2)	0.0091 (17)	−0.0080 (16)	0.0047 (15)	−0.0025 (15)
O3	0.026 (2)	0.015 (2)	0.0093 (17)	0.0017 (16)	0.0018 (14)	−0.0024 (15)
O4	0.039 (2)	0.0067 (19)	0.0121 (18)	0.0035 (17)	0.0004 (16)	−0.0005 (15)
O5	0.035 (2)	0.009 (2)	0.0194 (19)	0.0001 (16)	0.0143 (17)	−0.0007 (16)
O6	0.026 (2)	0.014 (2)	0.0124 (18)	−0.0004 (16)	0.0070 (15)	0.0023 (15)
O7	0.026 (2)	0.015 (2)	0.0091 (17)	−0.0094 (16)	0.0056 (15)	−0.0020 (15)
O8	0.029 (2)	0.013 (2)	0.0175 (19)	−0.0060 (16)	0.0063 (16)	−0.0095 (16)
N1	0.022 (2)	0.011 (2)	0.011 (2)	−0.0014 (19)	0.0023 (17)	−0.0002 (18)
N2	0.024 (2)	0.013 (2)	0.008 (2)	−0.0016 (18)	0.0048 (17)	−0.0012 (17)
N3	0.023 (2)	0.010 (2)	0.010 (2)	0.0014 (18)	0.0071 (18)	0.0000 (17)
N4	0.022 (2)	0.007 (2)	0.015 (2)	0.0018 (18)	0.0071 (18)	0.0032 (17)
O1W	0.019 (2)	0.032 (2)	0.015 (2)	−0.0022 (18)	0.0042 (15)	−0.0015 (18)
O2W	0.039 (3)	0.052 (3)	0.014 (2)	0.024 (2)	0.0048 (18)	0.008 (2)

Geometric parameters (Å, º) top

Yb1—O2	2.224 (4)	C4—N2	1.385 (6)
Yb1—O6	2.251 (3)	C4—C5	1.504 (7)
Yb1—O3	2.261 (3)	C5—O3	1.251 (6)
Yb1—O7	2.263 (3)	C5—O4	1.255 (6)
Yb1—O2W	2.293 (4)	C6—O6	1.249 (6)
Yb1—O1W	2.361 (4)	C6—O5	1.262 (6)
Yb1—O7ⁱ	2.389 (3)	C6—C7	1.496 (7)
Yb1—O8ⁱ	2.594 (4)	C7—N3	1.375 (6)
Yb1—C10ⁱ	2.895 (5)	C7—C9	1.393 (7)
Yb1—Yb1ⁱ	3.8682 (5)	C8—N3	1.326 (7)
Ag1—N4ⁱⁱ	2.119 (4)	C8—N4	1.336 (7)
Ag1—O5	2.157 (4)	C8—H8	0.9300
Ag2—N1	2.159 (4)	C9—N4	1.381 (6)
Ag2—O4ⁱⁱ	2.160 (4)	C9—C10	1.461 (7)
Ag2—Ag3ⁱⁱⁱ	3.3055 (6)	C10—O8	1.251 (6)
Ag3—N2^iv	2.107 (4)	C10—O7	1.283 (6)
Ag3—N3	2.127 (4)	C10—Yb1ⁱ	2.895 (5)
Ag3—Ag3^iv	3.0969 (9)	O4—Ag2^vi	2.160 (3)
Ag3—Ag2^v	3.3055 (6)	O7—Yb1ⁱ	2.389 (3)
C1—O1	1.228 (6)	O8—Yb1ⁱ	2.594 (4)
C1—O2	1.277 (6)	N2—Ag3^iv	2.107 (4)
C1—C2	1.500 (7)	N4—Ag1^vi	2.119 (4)
C2—N1	1.375 (6)	O1W—H1W	0.82 (2)
C2—C4	1.382 (7)	O1W—H2W	0.81 (2)
C3—N2	1.331 (7)	O2W—H4W	0.81 (2)
C3—N1	1.339 (7)	O2W—H3W	0.81 (2)
C3—H3	0.9300

O2—Yb1—O6	89.21 (13)	N1—C2—C4	108.3 (4)
O2—Yb1—O3	78.74 (13)	N1—C2—C1	117.3 (4)
O6—Yb1—O3	77.75 (13)	C4—C2—C1	134.4 (5)
O2—Yb1—O7	159.69 (12)	N2—C3—N1	113.8 (4)
O6—Yb1—O7	77.17 (13)	N2—C3—H3	123.1
O3—Yb1—O7	83.64 (13)	N1—C3—H3	123.1
O2—Yb1—O2W	98.34 (17)	C2—C4—N2	107.8 (4)
O6—Yb1—O2W	67.73 (13)	C2—C4—C5	134.4 (4)
O3—Yb1—O2W	145.43 (14)	N2—C4—C5	117.6 (4)
O7—Yb1—O2W	90.43 (17)	O3—C5—O4	124.5 (5)
O2—Yb1—O1W	86.59 (14)	O3—C5—C4	120.0 (4)
O6—Yb1—O1W	147.79 (13)	O4—C5—C4	115.5 (4)
O3—Yb1—O1W	70.10 (13)	O6—C6—O5	122.3 (5)
O7—Yb1—O1W	96.89 (14)	O6—C6—C7	121.2 (4)
O2W—Yb1—O1W	144.46 (13)	O5—C6—C7	116.5 (4)
O2—Yb1—O7ⁱ	132.22 (12)	N3—C7—C9	107.8 (4)
O6—Yb1—O7ⁱ	129.72 (12)	N3—C7—C6	118.5 (4)
O3—Yb1—O7ⁱ	129.53 (13)	C9—C7—C6	133.6 (4)
O7—Yb1—O7ⁱ	67.50 (13)	N3—C8—N4	114.5 (5)
O2W—Yb1—O7ⁱ	77.69 (15)	N3—C8—H8	122.8
O1W—Yb1—O7ⁱ	73.28 (13)	N4—C8—H8	122.8
O2—Yb1—O8ⁱ	81.79 (11)	N4—C9—C7	107.9 (4)
O6—Yb1—O8ⁱ	136.44 (12)	N4—C9—C10	119.2 (4)
O3—Yb1—O8ⁱ	140.18 (13)	C7—C9—C10	132.8 (4)
O7—Yb1—O8ⁱ	118.45 (11)	O8—C10—O7	117.8 (4)
O2W—Yb1—O8ⁱ	71.58 (14)	O8—C10—C9	121.4 (5)
O1W—Yb1—O8ⁱ	74.40 (13)	O7—C10—C9	120.7 (4)
O7ⁱ—Yb1—O8ⁱ	51.43 (11)	O8—C10—Yb1ⁱ	63.6 (3)
O2—Yb1—C10ⁱ	106.65 (13)	O7—C10—Yb1ⁱ	54.5 (2)
O6—Yb1—C10ⁱ	140.62 (13)	C9—C10—Yb1ⁱ	171.2 (4)
O3—Yb1—C10ⁱ	139.85 (13)	C1—O2—Yb1	139.5 (3)
O7—Yb1—C10ⁱ	93.32 (13)	C5—O3—Yb1	140.0 (3)
O2W—Yb1—C10ⁱ	74.33 (14)	C5—O4—Ag2^vi	119.8 (3)
O1W—Yb1—C10ⁱ	70.57 (13)	C6—O5—Ag1	113.8 (3)
O7ⁱ—Yb1—C10ⁱ	25.90 (12)	C6—O6—Yb1	145.0 (3)
O8ⁱ—Yb1—C10ⁱ	25.60 (12)	C10—O7—Yb1	147.5 (3)
O2—Yb1—Yb1ⁱ	164.48 (9)	C10—O7—Yb1ⁱ	99.6 (3)
O6—Yb1—Yb1ⁱ	105.35 (9)	Yb1—O7—Yb1ⁱ	112.50 (13)
O3—Yb1—Yb1ⁱ	109.17 (9)	C10—O8—Yb1ⁱ	90.8 (3)
O7—Yb1—Yb1ⁱ	34.79 (8)	C3—N1—C2	105.0 (4)
O2W—Yb1—Yb1ⁱ	82.69 (13)	C3—N1—Ag2	129.5 (4)
O1W—Yb1—Yb1ⁱ	83.82 (10)	C2—N1—Ag2	123.7 (3)
O7ⁱ—Yb1—Yb1ⁱ	32.71 (8)	C3—N2—C4	105.0 (4)
O8ⁱ—Yb1—Yb1ⁱ	83.89 (8)	C3—N2—Ag3^iv	127.3 (3)
C10ⁱ—Yb1—Yb1ⁱ	58.56 (10)	C4—N2—Ag3^iv	126.3 (3)
N4ⁱⁱ—Ag1—O5	157.46 (14)	C8—N3—C7	105.3 (4)
N1—Ag2—O4ⁱⁱ	159.80 (14)	C8—N3—Ag3	128.6 (3)
N1—Ag2—Ag3ⁱⁱⁱ	70.99 (11)	C7—N3—Ag3	125.5 (3)
O4ⁱⁱ—Ag2—Ag3ⁱⁱⁱ	100.58 (10)	C8—N4—C9	104.6 (4)
N2^iv—Ag3—N3	176.23 (17)	C8—N4—Ag1^vi	123.2 (3)
N2^iv—Ag3—Ag3^iv	98.55 (12)	C9—N4—Ag1^vi	132.2 (3)
N3—Ag3—Ag3^iv	79.79 (12)	Yb1—O1W—H1W	116 (5)
N2^iv—Ag3—Ag2^v	89.30 (12)	Yb1—O1W—H2W	126 (5)
N3—Ag3—Ag2^v	89.89 (11)	H1W—O1W—H2W	105 (6)
Ag3^iv—Ag3—Ag2^v	140.588 (19)	Yb1—O2W—H4W	140 (6)
O1—C1—O2	122.7 (5)	Yb1—O2W—H3W	128 (6)
O1—C1—C2	118.0 (5)	H4W—O2W—H3W	90 (7)
O2—C1—C2	119.2 (4)

Symmetry codes: (i) −x, −y, −z+1; (ii) x, y+1, z; (iii) x+1/2, y+1/2, z; (iv) −x, y, −z+3/2; (v) x−1/2, y−1/2, z; (vi) x, y−1, z.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1W···O8ⁱⁱⁱ	0.82 (2)	2.11 (5)	2.751 (5)	136 (6)
O1W—H2W···O2^vii	0.81 (2)	2.03 (3)	2.823 (5)	165 (6)
O2W—H4W···O1^viii	0.81 (2)	1.88 (4)	2.634 (5)	154 (8)

Symmetry codes: (iii) x+1/2, y+1/2, z; (vii) −x+1/2, −y+1/2, −z+1; (viii) −x, −y+1, −z+1.

Experimental details

Crystal data
Chemical formula	[Ag₃Yb(C₅HN₂O₄)₂(H₂O)₂]
M_r	838.84
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	295
a, b, c (Å)	12.6850 (7), 8.6643 (5), 28.4015 (16)
β (°)	97.686 (1)
V (Å³)	3093.5 (3)
Z	8
Radiation type	Mo Kα
µ (mm⁻¹)	9.80
Crystal size (mm)	0.20 × 0.18 × 0.17

Data collection
Diffractometer	Bruker APEXII CCD
Absorption correction	Multi-scan (SADABS; Sheldrick, 1996)
T_min, T_max	0.162, 0.189
No. of measured, independent and observed [I > 2σ(I)] reflections	7613, 2794, 2629
R_int	0.026
(sin θ/λ)_max (Å⁻¹)	0.599

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.024, 0.055, 1.19
No. of reflections	2794
No. of parameters	265
No. of restraints	4
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.58, −1.29

Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1W···O8ⁱ	0.82 (2)	2.11 (5)	2.751 (5)	136 (6)
O1W—H2W···O2ⁱⁱ	0.81 (2)	2.03 (3)	2.823 (5)	165 (6)
O2W—H4W···O1ⁱⁱⁱ	0.81 (2)	1.88 (4)	2.634 (5)	154 (8)

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

Acknowledgements

This work was supported by the Fundamental Research Funds for the Central Universities of South China University of Technology (grant No. 2012ZM0072).

References

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