catena-Poly[[[diaqua­diformatonickel(II)]-μ-1,4-bis­(1H-benzimidazol-1-yl)benzene] dihydrate]

Li, H.; Sun, H.; Chai, X.; Yao, C.

doi:10.1107/S160053681200284X

metal-organic compounds

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ISSN: 2056-9890

Volume 68| Part 2| February 2012| Page m216

doi:10.1107/S160053681200284X

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catena-Poly[[[diaquadiformatonickel(II)]-μ-1,4-bis(1H-benzimidazol-1-yl)benzene] dihydrate]

Hui Li,^a ^* Hong Sun,^a Xiaochuan Chai ^a and Chenzhong Yao ^a

^aDepartment of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000, People's Republic of China
^*Correspondence e-mail: lihuiwff@163.com

(Received 13 January 2012; accepted 23 January 2012; online 31 January 2012)

In the title one-dimensional coordination polymer, {[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O}_n, the Ni^II atom lies on a crystallographic inversion centre. It is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis(1H-benzimidazol-1-yl)benzene (bzb) ligands, resulting in a distorted trans-NiN₂O₄ octahedral coordination geometry. The bzb molecule acts as a bridging ligand to connect the metal atoms into a chain propagating in [1 $[\overline{1}]$ $[\overline{1}]$ ]. The dihedral angle between the benzimidazole ring and the central benzene ring in the ligand is 38.16 (9)°. In the crystal, O—H⋯O hydrogen bonds crosslink the chains into (010) sheets.

Related literature

For background to coordination polymers containing imidazole-derived ligands, see: Li et al. (2009 , 2011 ).

Experimental

Crystal data

[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O
M_r = 531.16
Triclinic, $[P \overline 1]$
a = 7.4431 (15) Å
b = 9.0895 (18) Å
c = 9.3863 (19) Å
α = 78.46 (3)°
β = 77.79 (3)°
γ = 67.86 (3)°
V = 569.8 (2) Å³
Z = 1
Mo Kα radiation
μ = 0.91 mm⁻¹
T = 293 K
0.25 × 0.22 × 0.20 mm

Data collection

Rigaku Mercury CCD diffractometer
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005 ) T_min = 0.797, T_max = 0.834
5022 measured reflections
2000 independent reflections
1874 reflections with I > 2σ(I)
R_int = 0.021

Refinement

R[F² > 2σ(F²)] = 0.027
wR(F²) = 0.061
S = 1.09
2000 reflections
160 parameters
H-atom parameters constrained
Δρ_max = 0.23 e Å⁻³
Δρ_min = −0.19 e Å⁻³

Table 1
Selected bond lengths (Å)

Ni1—O1	2.0695 (14)
Ni1—N1	2.0908 (16)
Ni1—O1W	2.1036 (16)

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1A⋯O2ⁱ	0.85	1.85	2.694 (2)	169
O1W—H1B⋯O2Wⁱⁱ	0.85	1.92	2.762 (2)	169
O2W—H2A⋯O2ⁱⁱⁱ	0.85	1.91	2.760 (2)	173
O2W—H2B⋯O1^iv	0.85	2.16	2.846 (2)	137
Symmetry codes: (i) x-1, y, z; (ii) x, y, z-1; (iii) -x+2, -y+1, -z+1; (iv) x, y, z+1.

Data collection: CrystalClear (Rigaku/MSC, 2005); cell refinement: CrystalClear; data reduction: CrystalClear; 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: SHELXTL.

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S160053681200284X/hb6604sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S160053681200284X/hb6604Isup2.hkl

checkCIF report

Comment top

Imidazole has been extensively used in crystal engineering, and a large number of imidazole-containing flexible ligands have been extensively studied. However, to our knowledge, the research on imidazole ligands bearing rigid spacers is still less developed (Li et al., 2009; Li et al., 2011). For the title compound, the geometry of the Ni^II ion is bound by two benzimidazole rings of individual L ligands, two water molecules and two formate ions forming a slightly distorted octahedral coordination environment(Fig. 1). Notably, as shown in Fig. 2, the six-coordinate Ni^II center is bridged by the ligand L to form an infinite one-dimensional architecture.

Related literature top

For background to coordination polymers containing imidazole-derived ligands, see: Li et al. (2009, 2011).

Experimental top

A mixture of CH₃OH and H₂O (1:1, 8 ml), as a buffer layer, was carefully layered over a solution of Ni(HCO₂)₂ in H₂O (6 ml). Then a solution of 1,4-di(1H-benzimidazol-1-yl)benzene (L, 0.06 mmol) in CH₃OH (6 ml) was layered over the buffer layer, and the resultant reaction was left to stand at room temperature. After ca three weeks, green block single crystals appeared at the boundary. Yield: ~20% (based on L).

Computing details top

Data collection: CrystalClear (Rigaku/MSC, 2005); cell refinement: CrystalClear (Rigaku/MSC, 2005); data reduction: CrystalClear (Rigaku/MSC, 2005); 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: SHELXTL (Sheldrick, 2008).

Figures top

	Fig. 1. The molecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level and H atoms are shown as small spheres of arbitrary radius.
	Fig. 2. The crystal packing for (I).

catena-Poly[[[diaquadiformatonickel(II)]-µ-1,4- bis(1H-benzimidazol-1-yl)benzene] dihydrate] top

Crystal data top

[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O	Z = 1
M_r = 531.16	F(000) = 276
Triclinic, P1	D_x = 1.548 Mg m⁻³
Hall symbol: -p 1	Mo Kα radiation, λ = 0.71073 Å
a = 7.4431 (15) Å	Cell parameters from 6111 reflections
b = 9.0895 (18) Å	θ = 6.2–55.0°
c = 9.3863 (19) Å	µ = 0.91 mm⁻¹
α = 78.46 (3)°	T = 293 K
β = 77.79 (3)°	Block, green
γ = 67.86 (3)°	0.25 × 0.22 × 0.20 mm
V = 569.8 (2) Å³

Data collection top

Rigaku Mercury CCD diffractometer	2000 independent reflections
Radiation source: fine-focus sealed tube	1874 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.021
Detector resolution: 9 pixels mm^-1	θ_max = 25.0°, θ_min = 3.1°
ω scans	h = −8→8
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005)	k = −10→10
T_min = 0.797, T_max = 0.834	l = −11→11
5022 measured reflections

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)] = 0.027	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.061	H-atom parameters constrained
S = 1.09	w = 1/[σ²(F_o²) + (0.0208P)² + 0.3422P] where P = (F_o² + 2F_c²)/3
2000 reflections	(Δ/σ)_max < 0.001
160 parameters	Δρ_max = 0.23 e Å⁻³
0 restraints	Δρ_min = −0.19 e Å⁻³

Crystal data top

[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O	γ = 67.86 (3)°
M_r = 531.16	V = 569.8 (2) Å³
Triclinic, P1	Z = 1
a = 7.4431 (15) Å	Mo Kα radiation
b = 9.0895 (18) Å	µ = 0.91 mm⁻¹
c = 9.3863 (19) Å	T = 293 K
α = 78.46 (3)°	0.25 × 0.22 × 0.20 mm
β = 77.79 (3)°

Data collection top

Rigaku Mercury CCD diffractometer	2000 independent reflections
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005)	1874 reflections with I > 2σ(I)
T_min = 0.797, T_max = 0.834	R_int = 0.021
5022 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.027	0 restraints
wR(F²) = 0.061	H-atom parameters constrained
S = 1.09	Δρ_max = 0.23 e Å⁻³
2000 reflections	Δρ_min = −0.19 e Å⁻³
160 parameters

Special details top

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.

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

	x	y	z	U_iso*/U_eq
Ni1	1.0000	0.0000	0.0000	0.01789 (11)
N1	0.8599 (2)	0.05059 (18)	0.21160 (16)	0.0233 (4)
N2	0.7076 (2)	0.21017 (19)	0.38522 (17)	0.0251 (4)
O1	1.11753 (19)	0.17566 (16)	−0.00983 (15)	0.0272 (3)
O2	1.3775 (2)	0.24681 (19)	−0.03883 (19)	0.0439 (4)
O2W	0.8143 (3)	0.4708 (2)	0.9185 (2)	0.0580 (5)
O1W	0.76721 (19)	0.18582 (16)	−0.09086 (15)	0.0265 (3)
C1	0.7822 (3)	0.1980 (2)	0.2416 (2)	0.0265 (4)
H1	0.7785	0.2864	0.1709	0.032*
C2	0.7415 (3)	0.0544 (2)	0.4562 (2)	0.0243 (4)
C3	0.6960 (3)	−0.0069 (3)	0.6010 (2)	0.0349 (5)
H3	0.6319	0.0598	0.6733	0.042*
C4	0.7496 (4)	−0.1702 (3)	0.6330 (2)	0.0410 (6)
H4	0.7235	−0.2156	0.7294	0.049*
C5	0.8426 (3)	−0.2698 (3)	0.5238 (3)	0.0390 (5)
H5	0.8762	−0.3800	0.5493	0.047*
C6	0.8858 (3)	−0.2091 (2)	0.3798 (2)	0.0301 (5)
H6	0.9465	−0.2762	0.3076	0.036*
C7	0.8359 (3)	−0.0440 (2)	0.3458 (2)	0.0223 (4)
C8	0.6026 (3)	0.3572 (2)	0.4442 (2)	0.0242 (4)
C9	0.6216 (3)	0.3723 (2)	0.5828 (2)	0.0280 (5)
H9	0.7031	0.2864	0.6386	0.034*
C10	0.5193 (3)	0.5154 (2)	0.6388 (2)	0.0292 (5)
H10	0.5321	0.5262	0.7322	0.035*
C11	1.2948 (3)	0.1551 (2)	−0.0493 (2)	0.0280 (5)
H11	1.3723	0.0622	−0.0905	0.034*
H1A	0.6479	0.1921	−0.0709	0.042*
H1B	0.7658	0.2799	−0.0905	0.042*
H2A	0.7644	0.5582	0.9559	0.042*
H2B	0.9293	0.4212	0.9405	0.042*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Ni1	0.01748 (19)	0.01802 (19)	0.01746 (19)	−0.00478 (14)	0.00105 (13)	−0.00749 (13)
N1	0.0272 (9)	0.0210 (9)	0.0184 (8)	−0.0052 (7)	0.0011 (7)	−0.0064 (7)
N2	0.0323 (9)	0.0199 (8)	0.0185 (8)	−0.0045 (7)	0.0018 (7)	−0.0073 (6)
O1	0.0218 (7)	0.0261 (8)	0.0348 (8)	−0.0090 (6)	0.0019 (6)	−0.0117 (6)
O2	0.0276 (8)	0.0366 (9)	0.0723 (12)	−0.0153 (7)	−0.0012 (8)	−0.0161 (8)
O2W	0.0580 (12)	0.0302 (9)	0.0900 (15)	−0.0068 (8)	−0.0309 (10)	−0.0132 (9)
O1W	0.0220 (7)	0.0249 (7)	0.0311 (8)	−0.0061 (6)	−0.0041 (6)	−0.0041 (6)
C1	0.0348 (11)	0.0218 (10)	0.0185 (10)	−0.0068 (9)	0.0017 (8)	−0.0052 (8)
C2	0.0247 (10)	0.0217 (10)	0.0230 (10)	−0.0043 (8)	0.0000 (8)	−0.0067 (8)
C3	0.0440 (13)	0.0329 (12)	0.0215 (11)	−0.0100 (10)	0.0042 (9)	−0.0063 (9)
C4	0.0539 (15)	0.0345 (13)	0.0257 (12)	−0.0133 (11)	0.0021 (10)	0.0031 (9)
C5	0.0459 (14)	0.0235 (11)	0.0397 (13)	−0.0089 (10)	0.0003 (10)	0.0002 (9)
C6	0.0308 (11)	0.0234 (11)	0.0311 (12)	−0.0045 (9)	0.0016 (9)	−0.0091 (9)
C7	0.0209 (10)	0.0218 (10)	0.0221 (10)	−0.0044 (8)	−0.0010 (8)	−0.0068 (8)
C8	0.0267 (10)	0.0217 (10)	0.0207 (10)	−0.0047 (8)	0.0021 (8)	−0.0087 (8)
C9	0.0321 (11)	0.0234 (10)	0.0238 (11)	−0.0020 (9)	−0.0065 (8)	−0.0059 (8)
C10	0.0378 (12)	0.0290 (11)	0.0186 (10)	−0.0061 (9)	−0.0038 (8)	−0.0097 (8)
C11	0.0241 (11)	0.0248 (11)	0.0333 (12)	−0.0057 (9)	−0.0026 (9)	−0.0075 (9)

Geometric parameters (Å, º) top

Ni1—O1ⁱ	2.0695 (14)	C2—C3	1.385 (3)
Ni1—O1	2.0695 (14)	C2—C7	1.399 (3)
Ni1—N1ⁱ	2.0908 (16)	C3—C4	1.371 (3)
Ni1—N1	2.0908 (16)	C3—H3	0.9300
Ni1—O1W	2.1036 (16)	C4—C5	1.395 (3)
Ni1—O1Wⁱ	2.1036 (16)	C4—H4	0.9300
N1—C1	1.307 (2)	C5—C6	1.373 (3)
N1—C7	1.395 (2)	C5—H5	0.9300
N2—C1	1.354 (2)	C6—C7	1.389 (3)
N2—C2	1.391 (2)	C6—H6	0.9300
N2—C8	1.424 (2)	C8—C9	1.377 (3)
O1—C11	1.245 (2)	C8—C10ⁱⁱ	1.385 (3)
O2—C11	1.236 (2)	C9—C10	1.380 (3)
O2W—H2A	0.8522	C9—H9	0.9300
O2W—H2B	0.8516	C10—C8ⁱⁱ	1.385 (3)
O1W—H1A	0.8504	C10—H10	0.9300
O1W—H1B	0.8516	C11—H11	0.9300
C1—H1	0.9300

O1ⁱ—Ni1—O1	180.00 (5)	C3—C2—C7	122.24 (18)
O1ⁱ—Ni1—N1ⁱ	87.66 (6)	N2—C2—C7	105.25 (16)
O1—Ni1—N1ⁱ	92.34 (6)	C4—C3—C2	116.98 (19)
O1ⁱ—Ni1—N1	92.34 (6)	C4—C3—H3	121.5
O1—Ni1—N1	87.66 (6)	C2—C3—H3	121.5
N1ⁱ—Ni1—N1	180.00 (10)	C3—C4—C5	121.4 (2)
O1ⁱ—Ni1—O1W	94.56 (6)	C3—C4—H4	119.3
O1—Ni1—O1W	85.44 (6)	C5—C4—H4	119.3
N1ⁱ—Ni1—O1W	89.72 (6)	C6—C5—C4	121.7 (2)
N1—Ni1—O1W	90.28 (6)	C6—C5—H5	119.2
O1ⁱ—Ni1—O1Wⁱ	85.44 (6)	C4—C5—H5	119.2
O1—Ni1—O1Wⁱ	94.56 (6)	C5—C6—C7	117.75 (19)
N1ⁱ—Ni1—O1Wⁱ	90.28 (6)	C5—C6—H6	121.1
N1—Ni1—O1Wⁱ	89.72 (6)	C7—C6—H6	121.1
O1W—Ni1—O1Wⁱ	180.00 (11)	C6—C7—N1	130.60 (17)
C1—N1—C7	105.03 (15)	C6—C7—C2	119.93 (18)
C1—N1—Ni1	120.95 (13)	N1—C7—C2	109.45 (16)
C7—N1—Ni1	133.87 (12)	C9—C8—C10ⁱⁱ	120.26 (18)
C1—N2—C2	106.47 (16)	C9—C8—N2	120.29 (18)
C1—N2—C8	124.79 (17)	C10ⁱⁱ—C8—N2	119.45 (17)
C2—N2—C8	128.57 (16)	C8—C9—C10	119.76 (19)
C11—O1—Ni1	123.29 (13)	C8—C9—H9	120.1
H2A—O2W—H2B	109.0	C10—C9—H9	120.1
Ni1—O1W—H1A	124.7	C9—C10—C8ⁱⁱ	119.98 (18)
Ni1—O1W—H1B	114.7	C9—C10—H10	120.0
H1A—O1W—H1B	105.8	C8ⁱⁱ—C10—H10	120.0
N1—C1—N2	113.79 (18)	O2—C11—O1	126.04 (19)
N1—C1—H1	123.1	O2—C11—H11	117.0
N2—C1—H1	123.1	O1—C11—H11	117.0
C3—C2—N2	132.49 (18)

O1ⁱ—Ni1—N1—C1	−139.94 (16)	N2—C2—C3—C4	178.9 (2)
O1—Ni1—N1—C1	40.06 (16)	C7—C2—C3—C4	0.7 (3)
N1ⁱ—Ni1—N1—C1	152 (100)	C2—C3—C4—C5	−1.2 (4)
O1W—Ni1—N1—C1	−45.36 (16)	C3—C4—C5—C6	0.4 (4)
O1Wⁱ—Ni1—N1—C1	134.64 (16)	C4—C5—C6—C7	0.8 (3)
O1ⁱ—Ni1—N1—C7	45.25 (18)	C5—C6—C7—N1	−179.6 (2)
O1—Ni1—N1—C7	−134.75 (18)	C5—C6—C7—C2	−1.2 (3)
N1ⁱ—Ni1—N1—C7	−23 (100)	C1—N1—C7—C6	178.2 (2)
O1W—Ni1—N1—C7	139.83 (18)	Ni1—N1—C7—C6	−6.4 (3)
O1Wⁱ—Ni1—N1—C7	−40.17 (18)	C1—N1—C7—C2	−0.3 (2)
O1ⁱ—Ni1—O1—C11	90 (100)	Ni1—N1—C7—C2	175.08 (14)
N1ⁱ—Ni1—O1—C11	−48.98 (16)	C3—C2—C7—C6	0.5 (3)
N1—Ni1—O1—C11	131.02 (16)	N2—C2—C7—C6	−178.12 (18)
O1W—Ni1—O1—C11	−138.51 (16)	C3—C2—C7—N1	179.16 (19)
O1Wⁱ—Ni1—O1—C11	41.49 (16)	N2—C2—C7—N1	0.6 (2)
C7—N1—C1—N2	−0.1 (2)	C1—N2—C8—C9	−145.1 (2)
Ni1—N1—C1—N2	−176.23 (13)	C2—N2—C8—C9	40.3 (3)
C2—N2—C1—N1	0.5 (2)	C1—N2—C8—C10ⁱⁱ	35.2 (3)
C8—N2—C1—N1	−175.17 (18)	C2—N2—C8—C10ⁱⁱ	−139.5 (2)
C1—N2—C2—C3	−179.0 (2)	C10ⁱⁱ—C8—C9—C10	−0.3 (3)
C8—N2—C2—C3	−3.6 (4)	N2—C8—C9—C10	179.95 (18)
C1—N2—C2—C7	−0.6 (2)	C8—C9—C10—C8ⁱⁱ	0.3 (3)
C8—N2—C2—C7	174.80 (18)	Ni1—O1—C11—O2	−169.69 (16)

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

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1A···O2ⁱⁱⁱ	0.85	1.85	2.694 (2)	169
O1W—H1B···O2W^iv	0.85	1.92	2.762 (2)	169
O2W—H2A···O2^v	0.85	1.91	2.760 (2)	173
O2W—H2B···O1^vi	0.85	2.16	2.846 (2)	137

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

Experimental details

Crystal data
Chemical formula	[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O
M_r	531.16
Crystal system, space group	Triclinic, P1
Temperature (K)	293
a, b, c (Å)	7.4431 (15), 9.0895 (18), 9.3863 (19)
α, β, γ (°)	78.46 (3), 77.79 (3), 67.86 (3)
V (Å³)	569.8 (2)
Z	1
Radiation type	Mo Kα
µ (mm⁻¹)	0.91
Crystal size (mm)	0.25 × 0.22 × 0.20

Data collection
Diffractometer	Rigaku Mercury CCD diffractometer
Absorption correction	Multi-scan (CrystalClear; Rigaku/MSC, 2005)
T_min, T_max	0.797, 0.834
No. of measured, independent and observed [I > 2σ(I)] reflections	5022, 2000, 1874
R_int	0.021
(sin θ/λ)_max (Å⁻¹)	0.595

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.027, 0.061, 1.09
No. of reflections	2000
No. of parameters	160
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.23, −0.19

Computer programs: CrystalClear (Rigaku/MSC, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Selected bond lengths (Å) top

Ni1—O1	2.0695 (14)	Ni1—O1W	2.1036 (16)
Ni1—N1	2.0908 (16)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1A···O2ⁱ	0.85	1.85	2.694 (2)	169
O1W—H1B···O2Wⁱⁱ	0.85	1.92	2.762 (2)	169
O2W—H2A···O2ⁱⁱⁱ	0.85	1.91	2.760 (2)	173
O2W—H2B···O1^iv	0.85	2.16	2.846 (2)	137

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

Acknowledgements

The authors thank the Young Scientist Fund of the NSFC of China (grant No. 51101138) and the College Research Program of Yuncheng University (grant No. 2008114) for funding.

References

Li, Z. X., Chu, X., Cui, G. H., Liu, Y., Li, L. & Xue, G. L. (2011). CrystEngComm, 13, 1984–1989. Web of Science CSD CrossRef CAS Google Scholar
Li, Z. X., Xu, Y., Zuo, Y., Li, L., Pan, Q., Hu, T. L. & Bu, X. H. (2009). Cryst. Growth Des. 9, 3904–3909. Web of Science CSD CrossRef CAS Google Scholar
Rigaku/MSC (2005). CrystalClear. Rigaku/MSC Inc., The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar

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Volume 68| Part 2| February 2012| Page m216

doi:10.1107/S160053681200284X

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metal-organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

catena-Poly[[[di­aqua­diformatonickel(II)]-μ-1,4-bis­­(1H-benzimidazol-1-yl)benzene] dihydrate]

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Experimental

Crystal data

Data collection

Refinement

Supporting information

Acknowledgements

References

metal-organic compounds

catena-Poly[[[diaquadiformatonickel(II)]-μ-1,4-bis(1H-benzimidazol-1-yl)benzene] dihydrate]