Home Crystal structure of poly-[diaqua-bis(μ2-2-((1H-1,2,4-triazol-5-yl)thio)acetato-κ2N:O) cadmium(II)], C8H8CdN6O6S2
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Crystal structure of poly-[diaqua-bis(μ2-2-((1H-1,2,4-triazol-5-yl)thio)acetato-κ2N:O) cadmium(II)], C8H8CdN6O6S2

  • Min-Dong Chen , Xing Zhang , Bo Xiao EMAIL logo and Feng-Hua Chen
Published/Copyright: August 18, 2016

Abstract

C8H8CdN6O6S2, monoclinic, P21/c (no. 14), a = 7.4175(11) Å, b = 13.786(2) Å, c = 7.4934(11) Å, β = 93.835(2)°, V = 3972.0(12) Å3, Z = 2, Rgt(F) = 0.0193, wRref(F2) = 0.0581, T = 296(2) K.

CCDC no.:: 1495693

A part of the title crystal structure is shown in the figure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colourless block Size 0.34 × 0.30 × 0.29 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:17.4 cm−1
Diffractometer, scan mode:Bruker SMART, φ and ω
2θmax, completeness:56.4°, >99%
N(hkl)measured, N(hkl)unique, Rint:4288, 1400, 0.010
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1318
N(param)refined:106
Programs:Bruker programs [6], SHELX [7]
Table 2:

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

AtomxyzUiso*/Ueq
Cd10.50001.00000.00000.02355(11)
S11.07241(9)0.77499(4)0.42157(10)0.03988(19)
O11.5664(2)0.76232(12)0.6291(3)0.0420(5)
O21.3671(2)0.65227(12)0.5196(2)0.0328(4)
O30.3894(2)1.04688(14)0.2646(3)0.0399(4)
H1W0.39381.10430.30620.060*
H2W0.28451.02880.28970.060*
N10.7707(3)0.96176(14)0.1586(3)0.0275(4)
N20.8104(3)0.87367(14)0.2334(3)0.0283(4)
H2D0.73960.82420.22980.034*
N31.0493(2)0.96387(15)0.2953(3)0.0261(4)
C10.9769(3)0.87636(15)0.3133(3)0.0230(4)
C20.9173(4)1.01295(17)0.1997(4)0.0285(5)
H20.92931.07740.16600.034*
C31.2958(3)0.82117(16)0.4866(3)0.0283(5)
C41.4191(3)0.73721(16)0.5498(3)0.0246(5)

Source of material

A mixture of [(1,2,4-triazol-3-yl)thio]acetic acid (86.7 mg, 0.30 mmol), Cd(NO3)2·4H2O (46.0 mg, 0.15 mmol) and NaOH (120 mg, 0.30 mmol) was dissolved in 10 mL H2O. Then the solution was heated in a 25 mL Teflon-lined autoclave under autogenous pressure at 398 K for 3 days. After cooling to room temperature, colorless crystals formed (yield 43% based on Zn). Elemental analysis (C8H8CdN6O6S2): H 1.75, C 20.86, N 18.24, O 20.84%; found: H 1.84, C 20.81, N 18.19, O 20.91%.

Experimental details

The C-bound hydrogen atoms were included in calculated positions and treated as riding atoms: d(C—H) = 0.93–0.96 Å with Uiso(H) = 1.2 or 1.5 Ueq(C).

Discussion

The keen interest in the design and synthesis of coordination polymers (CPs) stems not only from their potential applications in gas storage, catalysis, drug delivery, nonlinear optics, and molecular sensing, but also because of impressive structural topologies [1, 2]. The construction of coordination architectures depends on the combination of several factors, such as the coordination geometry of metal ions, the nature of organic ligands, the use of noncovalent interactions (hydrogen bonding, halogen bonding, π–π interactions, or their combination in different ways) and sometimes the reagent ratio [3, 4]. So, understanding how these considerations affect metal coordination and influence crystal packing is at the forefront of controlling coordination frameworks. It has been documented that the geometries of organic ligands play crucial roles in determining the resulted architectures [5]. With the aim to understand the interesting chemistry of carboxylate ligand, we studied its assembly reaction of [(1,2,4-triazol-3-yl)thio]acetic acid (H2tzta) with Cd(II) ions under hydrothermal condition.

Structure solution revealed that the asymmetric unit of title structure contain one half of a Cd(II), one deprotonated carboxylato ligand and one water ligand to construct a 2-D coordination polymer. Each Cd(II) ion, located on a crystallographic inversion center, is six-coordinated by two carboxylate oxygens (D(Cd–O) = 2.2891(19) Å) and two thiazole nitrogen atoms (D(Cd–N) = 2.3243(19) Å) and two coordinated water molecules, forming a distorted octahedral geometry (cf. the figure). The bond angles of O—Cd—N are in the range of 83.21(6)°–96.79(6)°. In addition, there is a complex network of intermolecular hydrogen bonds. These interactions result in a three dimensional architecture.

Acknowledgements:

This work was supported by the Natural Science Foundation of Jiangsu Province of China (No. BK20131429) and the open project of Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials (No. KFK1506).

References

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Received: 2016-3-29
Accepted: 2016-7-25
Published Online: 2016-8-18
Published in Print: 2016-12-1

©2016 Min-Dong Chen et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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  72. Crystal structure of 2-(2-bromophenyl)-5-ethyl-1,3-dioxane-5-carboxylic acid, C13H15BrO4
  73. Crystal structure of 4-(4-((3-bromophenyl)amino)-6-(tert-butyl)-3-(2-hydroxypropan-2-yl)cinnolin-8-yl)-2-methylbut-3-yn-2-ol, C26H30BrN3O2
  74. Crystal structure poly-(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazolyl-κ2NN1:N2N)-(μ3-2,2′-(1,2-phenylene)diacetato-κ5-O1,O2:O2:O3,O4)cadmium(II), C22H19CdN5O4
  75. Crystal structure of bis(1-ethyl-6-fluoro-4-oxido-7-(piperazin-1-ium-1-yl)-1,8-naphthyridin-1-ium-3-carboxylate-κ2O,O′)copper(II) benzene-1, 4-dicarboxylate dihydrate, C38H42F2CuN8O12
  76. Redetermination of the crystal structure of potassium lithium molybdate monohydrate, KLiMoO4·H2O
  77. Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ3N](isonicotinate-κO) cobalt(II) [tris(2-benzimidazolylmethyl)amine-κ3N](isonicotinic acid-κO) cobalt(II) triperchlorate, C60H51N16O16Cl3Co2
  78. The crystal structure of tris(μ2-1,3-bis(4,4,4-trifluoro-3-oxido-1-(oxo)but-2-en-1-yl)phenyl-κ4O,O′:O′′,O′′′)-bis(1,2-dimethoxyethane-κ2O,O′)dicerium(III), C50H38F18O16Ce2
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