catena-Poly[[diaqua­(2,2′-bipyridine-κ2N,N′)zinc]-μ-2,2′-[1,4-phenylene­bis(sulfanedi­yl)]diacetato-κ2O:O′]

Lin, H.; Wang, X.-J.

doi:10.1107/S1600536811055310

metal-organic compounds

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ISSN: 2056-9890

Volume 68| Part 2| February 2012| Page m105

doi:10.1107/S1600536811055310

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catena-Poly[[diaqua(2,2′-bipyridine-κ²N,N′)zinc]-μ-2,2′-[1,4-phenylenebis(sulfanediyl)]diacetato-κ²O:O′]

Hong Lin ^a ^* and Xiao-Juan Wang ^b

^aJinhua Professional Technical College, No. 1188 Wuzhou Street, Jinhua, Zhejiang 321007, People's Republic of China, and ^bZhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People's Republic of China
^*Correspondence e-mail: jh_ll@126.com

(Received 22 November 2011; accepted 23 December 2011; online 7 January 2012)

In the polymeric title complex, [Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]_n, the Zn²⁺ ion lies on a twofold rotation axis and exhibits an octahedral environment, in which it is coordinated by two trans O atoms from two symmetry-related 2,2′-[1,4-phenylenebis(sulfanediyl)]diacetate anions, two N atoms from one 2,2′-bipyridine ligand, and two cis O atoms from water molecules. The dihedral angle between the two pyridine rings is 11.5 (1)°. Adjacent Zn²⁺ ions are bridged in a monodentate manner by the diacetate anions, forming a chain structure extending parallel to [101], and are further linked into the final three-dimensional structure by O—H⋯O hydrogen bonds between the coordinating water molecules as donor and the non-coordinating carboxylate O atoms as acceptor atoms.

Related literature

For background to 1,4-benzenebis(thioacetic acid), including its synthesis and coordination behaviour, see: Yin & Feng (2009 ); Yin et al. (2009 ); Chen et al. (2010 ); Wang et al. (2011a ,b ); Jiang et al. (2012 ).

Experimental

Crystal data

[Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]
M_r = 513.87
Monoclinic, C 2/c
a = 20.4396 (8) Å
b = 12.8695 (8) Å
c = 7.9798 (4) Å
β = 90.765 (3)°
V = 2098.88 (19) Å³
Z = 4
Mo Kα radiation
μ = 1.41 mm⁻¹
T = 296 K
0.22 × 0.16 × 0.11 mm

Data collection

Bruker APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ) T_min = 0.761, T_max = 0.853
16253 measured reflections
2448 independent reflections
2237 reflections with I > 2σ(I)
R_int = 0.026

Refinement

R[F² > 2σ(F²)] = 0.025
wR(F²) = 0.070
S = 1.04
2448 reflections
147 parameters
3 restraints
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.31 e Å⁻³
Δρ_min = −0.31 e Å⁻³

Table 1
Selected bond lengths (Å)

Zn1—O1W	2.0896 (11)
Zn1—N1	2.1477 (13)
Zn1—O1	2.1529 (10)

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1WA⋯O2ⁱ	0.83 (1)	1.90 (2)	2.7107 (15)	170 (2)
O1W—H1WB⋯O2	0.82 (1)	1.86 (2)	2.6582 (16)	164 (2)
Symmetry code: (i) $[x, -y+1, z-{\script{1\over 2}}]$ .

Data collection: APEX2 (Bruker, 2006 ); cell refinement: SAINT (Bruker, 2006); 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) and DIAMOND (Crystal Impact, 2008 ); software used to prepare material for publication: publCIF (Westrip, 2010 ).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536811055310/wm2568sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536811055310/wm2568Isup2.hkl

checkCIF report

Comment top

1,4-Benzenebis(thioacetic acid), (C₁₀H₁₀O₄S₂), is a flexible aromatic multi-carboxylate ligand, which can be prepared from 1,4-benzenebisthiol (Yin & Feng, 2009). Compared with rigid ligands, these flexible aromatic carboxylate ligands contain more coordination sites (viz. S and O atoms) to construct various extended structures with different metal ions. Recently, some complexes derived from 1,4-benzenebis(thioacetic acid) with bipyridine ligands have been reported (Yin et al., 2009; Chen et al., 2010; Wang et al., 2011a,b; Jiang et al., 2012). Here we report the synthesis and structure of a new complex, [Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]_n, (I).

Complex (I) is isotypic with its Co(II) analogue (Jiang et al., 2012). A view on the molecular structure of (I), showing the coordination environment of the Zn²⁺ ion, is presented in Fig. 1. The asymmetric unit consists of one Zn²⁺ ion (situated on a twofold rotation axis), half of a [C₁₀H₈O₄S₂]^2- anion, half of a 2,2'-bipy molecule, and one coordinating water molecule. The Zn²⁺ ion is six-coordinated by two O atoms from two symmetry-related [C₁₀H₈O₄S₂]^2- anions (Zn—O 2.1529 (10) Å), two N atoms from one chelating 2,2'-bipy molecule (Zn—N 2.1477 (13) Å), and two water molecules (Zn—O 2.0896 (11) Å) to form a slightly distorted octahedral geometry. The two pyridine rings in the bipy ligand are almost parallel with a dihedral angle of 11.5 (1)°. As shown in Fig. 2, adjacent Zn²⁺ ions are monodentately linked by the [C₁₀H₈O₄S₂]^2- anions to form a chain structure running parallel to [101]. The chains are further linked by O—H···O hydrogen bonds to form the final three-dimensional supramolecular architecture (Fig. 3).

Related literature top

For background to 1,4-benzenebis(thioacetic acid), including its synthesis and coordination behaviour, see: Yin & Feng (2009); Yin et al. (2009); Chen et al. (2010); Wang et al. (2011a,b); Jiang et al. (2012).

Experimental top

A mixture of 1,4-benzenebis(thioacetic acid) (0.103 g, 0.4 mmol), ZnCl₂.6H₂O (0.054 g, 0.4 mmol), 2,2'-bipy (0.031 g, 0.2 mmol), and Na₂CO₃ (0.042 g, 0.4 mmol) in H₂O (16 ml)/C₂H₅OH (2 ml) was placed in a 25 ml Teflon-lined stainless steel vessel and heated at 433 K for 72 h, then cooled to room temperature over 3 d. Colourless crystals suitable for X-ray analysis were obtained.

Computing details top

Data collection: APEX2 (Bruker, 2006); cell refinement: SAINT (Bruker, 2006); data reduction: SAINT (Bruker, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and DIAMOND (Crystal Impact, 2008); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top

	Fig. 1. The molecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level. [Symmetry codes: (i) -x + 1,y,-z + 1/2.]
	Fig. 2. The chain structure of the title complex. All H atoms have been omitted for clarity.
	Fig. 3. The three-dimensional supramolecular structure built through O—H···O hydrogen bonds (dashed lines).

catena-Poly[[diaqua(2,2'-bipyridine-κ²N,N')zinc]- µ-2,2'-[1,4-phenylenebis(sulfanediyl)]diacetato-κ²O:O'] top

Crystal data top

[Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]	F(000) = 1056
M_r = 513.87	D_x = 1.626 Mg m⁻³
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 7952 reflections
a = 20.4396 (8) Å	θ = 1.9–27.7°
b = 12.8695 (8) Å	µ = 1.41 mm⁻¹
c = 7.9798 (4) Å	T = 296 K
β = 90.765 (3)°	Block, colourless
V = 2098.88 (19) Å³	0.22 × 0.16 × 0.11 mm
Z = 4

Data collection top

Bruker APEXII CCD diffractometer	2448 independent reflections
Radiation source: fine-focus sealed tube	2237 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.026
ω scans	θ_max = 27.7°, θ_min = 1.9°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −26→26
T_min = 0.761, T_max = 0.853	k = −15→16
16253 measured reflections	l = −10→10

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)] = 0.025	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.070	H atoms treated by a mixture of independent and constrained refinement
S = 1.04	w = 1/[σ²(F_o²) + (0.043P)² + 0.7442P] where P = (F_o² + 2F_c²)/3
2448 reflections	(Δ/σ)_max = 0.001
147 parameters	Δρ_max = 0.31 e Å⁻³
3 restraints	Δρ_min = −0.31 e Å⁻³

Crystal data top

[Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]	V = 2098.88 (19) Å³
M_r = 513.87	Z = 4
Monoclinic, C2/c	Mo Kα radiation
a = 20.4396 (8) Å	µ = 1.41 mm⁻¹
b = 12.8695 (8) Å	T = 296 K
c = 7.9798 (4) Å	0.22 × 0.16 × 0.11 mm
β = 90.765 (3)°

Data collection top

Bruker APEXII CCD diffractometer	2448 independent reflections
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	2237 reflections with I > 2σ(I)
T_min = 0.761, T_max = 0.853	R_int = 0.026
16253 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.025	3 restraints
wR(F²) = 0.070	H atoms treated by a mixture of independent and constrained refinement
S = 1.04	Δρ_max = 0.31 e Å⁻³
2448 reflections	Δρ_min = −0.31 e Å⁻³
147 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
Zn1	0.5000	0.725191 (16)	0.2500	0.03569 (9)
S1	0.676748 (19)	0.62114 (4)	0.78141 (5)	0.04863 (12)
N1	0.44065 (7)	0.85617 (9)	0.31662 (16)	0.0391 (3)
O1W	0.57320 (6)	0.61941 (8)	0.18683 (14)	0.0435 (3)
H1WA	0.5703 (10)	0.5693 (13)	0.123 (2)	0.052*
H1WB	0.5785 (10)	0.5933 (15)	0.2793 (18)	0.052*
O1	0.54190 (6)	0.72445 (7)	0.49896 (13)	0.0398 (2)
O2	0.57240 (6)	0.55857 (8)	0.50514 (13)	0.0446 (3)
C1	0.38250 (9)	0.85086 (14)	0.3913 (2)	0.0484 (4)
H1A	0.3633	0.7861	0.4061	0.058*
C2	0.34980 (10)	0.93842 (17)	0.4477 (2)	0.0597 (5)
H2A	0.3089	0.9329	0.4966	0.072*
C3	0.37950 (11)	1.03389 (15)	0.4292 (3)	0.0618 (5)
H3A	0.3594	1.0937	0.4688	0.074*
C4	0.43876 (10)	1.03996 (13)	0.3523 (2)	0.0532 (4)
H4A	0.4592	1.1040	0.3391	0.064*
C5	0.46836 (8)	0.94978 (11)	0.29374 (19)	0.0403 (3)
C6	0.56711 (6)	0.64669 (10)	0.56961 (17)	0.0319 (3)
C7	0.59312 (7)	0.66315 (13)	0.74760 (18)	0.0395 (3)
H7A	0.5652	0.6258	0.8245	0.047*
H7B	0.5901	0.7365	0.7746	0.047*
C8	0.71752 (7)	0.69346 (13)	0.6228 (2)	0.0408 (3)
C9	0.71738 (8)	0.65950 (13)	0.4586 (2)	0.0479 (4)
H9A	0.6958	0.5983	0.4300	0.057*
C10	0.75080 (8)	0.78402 (14)	0.6640 (2)	0.0475 (4)
H10A	0.7518	0.8070	0.7745	0.057*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Zn1	0.04999 (16)	0.02228 (13)	0.03467 (14)	0.000	−0.00485 (10)	0.000
S1	0.0406 (2)	0.0562 (3)	0.0490 (2)	0.00141 (17)	−0.00659 (17)	0.01881 (18)
N1	0.0518 (7)	0.0284 (6)	0.0367 (6)	0.0019 (5)	−0.0129 (5)	−0.0020 (5)
O1W	0.0664 (7)	0.0291 (5)	0.0349 (5)	0.0064 (5)	−0.0039 (5)	−0.0045 (4)
O1	0.0540 (6)	0.0316 (5)	0.0336 (5)	0.0051 (4)	−0.0085 (5)	−0.0008 (4)
O2	0.0661 (7)	0.0290 (5)	0.0385 (5)	0.0007 (5)	−0.0048 (5)	0.0043 (4)
C1	0.0531 (9)	0.0449 (9)	0.0468 (9)	0.0033 (7)	−0.0084 (7)	−0.0017 (7)
C2	0.0590 (11)	0.0643 (12)	0.0555 (11)	0.0169 (9)	−0.0085 (8)	−0.0076 (9)
C3	0.0744 (13)	0.0478 (10)	0.0626 (11)	0.0254 (9)	−0.0234 (9)	−0.0171 (8)
C4	0.0680 (11)	0.0309 (8)	0.0600 (10)	0.0107 (7)	−0.0274 (9)	−0.0082 (7)
C5	0.0546 (8)	0.0258 (6)	0.0398 (7)	0.0028 (6)	−0.0231 (6)	−0.0023 (5)
C6	0.0324 (6)	0.0328 (7)	0.0304 (6)	−0.0034 (5)	0.0012 (5)	0.0042 (5)
C7	0.0400 (7)	0.0479 (8)	0.0307 (7)	0.0045 (6)	−0.0003 (6)	0.0028 (6)
C8	0.0310 (7)	0.0437 (8)	0.0475 (8)	0.0024 (6)	−0.0010 (6)	0.0051 (7)
C9	0.0418 (8)	0.0454 (9)	0.0564 (10)	−0.0066 (7)	0.0025 (7)	−0.0064 (7)
C10	0.0420 (8)	0.0553 (10)	0.0452 (9)	−0.0039 (7)	0.0003 (7)	−0.0075 (7)

Geometric parameters (Å, º) top

Zn1—O1Wⁱ	2.0896 (11)	C2—C3	1.379 (3)
Zn1—O1W	2.0896 (11)	C2—H2A	0.9300
Zn1—N1ⁱ	2.1477 (13)	C3—C4	1.367 (3)
Zn1—N1	2.1477 (13)	C3—H3A	0.9300
Zn1—O1ⁱ	2.1529 (10)	C4—C5	1.392 (2)
Zn1—O1	2.1529 (10)	C4—H4A	0.9300
S1—C8	1.7861 (16)	C5—C5ⁱ	1.478 (4)
S1—C7	1.8095 (15)	C6—C7	1.5247 (19)
N1—C1	1.339 (2)	C7—H7A	0.9700
N1—C5	1.3447 (19)	C7—H7B	0.9700
O1W—H1WA	0.825 (14)	C8—C9	1.382 (2)
O1W—H1WB	0.817 (14)	C8—C10	1.387 (2)
O1—C6	1.2557 (16)	C9—C10ⁱⁱ	1.388 (2)
O2—C6	1.2506 (17)	C9—H9A	0.9300
C1—C2	1.388 (3)	C10—C9ⁱⁱ	1.388 (2)
C1—H1A	0.9300	C10—H10A	0.9300

O1Wⁱ—Zn1—O1W	98.69 (7)	C1—C2—H2A	120.8
O1Wⁱ—Zn1—N1ⁱ	168.43 (5)	C4—C3—C2	119.51 (17)
O1W—Zn1—N1ⁱ	92.47 (5)	C4—C3—H3A	120.2
O1Wⁱ—Zn1—N1	92.47 (5)	C2—C3—H3A	120.2
O1W—Zn1—N1	168.43 (5)	C3—C4—C5	119.63 (17)
N1ⁱ—Zn1—N1	76.59 (7)	C3—C4—H4A	120.2
O1Wⁱ—Zn1—O1ⁱ	86.70 (4)	C5—C4—H4A	120.2
O1W—Zn1—O1ⁱ	92.97 (4)	N1—C5—C4	121.03 (16)
N1ⁱ—Zn1—O1ⁱ	89.66 (4)	N1—C5—C5ⁱ	115.91 (9)
N1—Zn1—O1ⁱ	90.74 (4)	C4—C5—C5ⁱ	123.05 (11)
O1Wⁱ—Zn1—O1	92.97 (4)	O2—C6—O1	125.11 (13)
O1W—Zn1—O1	86.70 (4)	O2—C6—C7	118.57 (12)
N1ⁱ—Zn1—O1	90.74 (4)	O1—C6—C7	116.32 (12)
N1—Zn1—O1	89.66 (4)	C6—C7—S1	114.48 (10)
O1ⁱ—Zn1—O1	179.49 (5)	C6—C7—H7A	108.6
C8—S1—C7	100.80 (7)	S1—C7—H7A	108.6
C1—N1—C5	118.97 (14)	C6—C7—H7B	108.6
C1—N1—Zn1	125.31 (11)	S1—C7—H7B	108.6
C5—N1—Zn1	115.42 (11)	H7A—C7—H7B	107.6
Zn1—O1W—H1WA	127.8 (14)	C9—C8—C10	119.04 (15)
Zn1—O1W—H1WB	97.9 (14)	C9—C8—S1	120.80 (13)
H1WA—O1W—H1WB	104.3 (17)	C10—C8—S1	120.15 (13)
C6—O1—Zn1	125.00 (9)	C8—C9—C10ⁱⁱ	120.52 (16)
N1—C1—C2	122.49 (17)	C8—C9—H9A	119.7
N1—C1—H1A	118.8	C10ⁱⁱ—C9—H9A	119.7
C2—C1—H1A	118.8	C8—C10—C9ⁱⁱ	120.43 (16)
C3—C2—C1	118.3 (2)	C8—C10—H10A	119.8
C3—C2—H2A	120.8	C9ⁱⁱ—C10—H10A	119.8

O1Wⁱ—Zn1—N1—C1	7.41 (13)	C2—C3—C4—C5	0.0 (3)
O1W—Zn1—N1—C1	−157.1 (2)	C1—N1—C5—C4	2.5 (2)
N1ⁱ—Zn1—N1—C1	−176.39 (15)	Zn1—N1—C5—C4	−171.45 (11)
O1ⁱ—Zn1—N1—C1	94.13 (13)	C1—N1—C5—C5ⁱ	−178.37 (15)
O1—Zn1—N1—C1	−85.55 (13)	Zn1—N1—C5—C5ⁱ	7.63 (19)
O1Wⁱ—Zn1—N1—C5	−179.03 (10)	C3—C4—C5—N1	−2.3 (2)
O1W—Zn1—N1—C5	16.4 (3)	C3—C4—C5—C5ⁱ	178.72 (18)
N1ⁱ—Zn1—N1—C5	−2.82 (7)	Zn1—O1—C6—O2	1.0 (2)
O1ⁱ—Zn1—N1—C5	−92.30 (10)	Zn1—O1—C6—C7	−179.21 (9)
O1—Zn1—N1—C5	88.01 (10)	O2—C6—C7—S1	51.79 (17)
O1Wⁱ—Zn1—O1—C6	63.39 (12)	O1—C6—C7—S1	−128.01 (12)
O1W—Zn1—O1—C6	−35.15 (12)	C8—S1—C7—C6	55.61 (13)
N1ⁱ—Zn1—O1—C6	−127.58 (12)	C7—S1—C8—C9	−80.93 (14)
N1—Zn1—O1—C6	155.84 (12)	C7—S1—C8—C10	100.14 (14)
O1ⁱ—Zn1—O1—C6	14.13 (13)	C10—C8—C9—C10ⁱⁱ	−1.0 (3)
C5—N1—C1—C2	−0.6 (2)	S1—C8—C9—C10ⁱⁱ	−179.94 (13)
Zn1—N1—C1—C2	172.80 (13)	C9—C8—C10—C9ⁱⁱ	1.0 (3)
N1—C1—C2—C3	−1.7 (3)	S1—C8—C10—C9ⁱⁱ	179.95 (13)
C1—C2—C3—C4	1.9 (3)

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

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1WA···O2ⁱⁱⁱ	0.83 (1)	1.90 (2)	2.7107 (15)	170 (2)
O1W—H1WB···O2	0.82 (1)	1.86 (2)	2.6582 (16)	164 (2)

Symmetry code: (iii) x, −y+1, z−1/2.

Experimental details

Crystal data
Chemical formula	[Zn(C₁₀H₈O₄S₂)(C₁₀H₈N₂)(H₂O)₂]
M_r	513.87
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	296
a, b, c (Å)	20.4396 (8), 12.8695 (8), 7.9798 (4)
β (°)	90.765 (3)
V (Å³)	2098.88 (19)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	1.41
Crystal size (mm)	0.22 × 0.16 × 0.11

Data collection
Diffractometer	Bruker APEXII CCD diffractometer
Absorption correction	Multi-scan (SADABS; Sheldrick, 1996)
T_min, T_max	0.761, 0.853
No. of measured, independent and observed [I > 2σ(I)] reflections	16253, 2448, 2237
R_int	0.026
(sin θ/λ)_max (Å⁻¹)	0.653

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.025, 0.070, 1.04
No. of reflections	2448
No. of parameters	147
No. of restraints	3
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.31, −0.31

Computer programs: APEX2 (Bruker, 2006), SAINT (Bruker, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and DIAMOND (Crystal Impact, 2008), publCIF (Westrip, 2010).

Selected bond lengths (Å) top

Zn1—O1W	2.0896 (11)	Zn1—O1	2.1529 (10)
Zn1—N1	2.1477 (13)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1W—H1WA···O2ⁱ	0.825 (14)	1.895 (15)	2.7107 (15)	169.7 (19)
O1W—H1WB···O2	0.817 (14)	1.862 (15)	2.6582 (16)	164 (2)

Symmetry code: (i) x, −y+1, z−1/2.

References

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