Home Physical Sciences Crystal structure of catena-poly[diaqua-(μ2-oxalyl dihydrazide-κ4N,O:N′,O′)-bis(μ2-pyridine-2,3-dicarboxylato-κ3N,O,O′)dicadmium(II)] hexahydrate, C16H28O18N6Cd2
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Crystal structure of catena-poly[diaqua-(μ2-oxalyl dihydrazide-κ4N,O:N′,O′)-bis(μ2-pyridine-2,3-dicarboxylato-κ3N,O,O′)dicadmium(II)] hexahydrate, C16H28O18N6Cd2

  • Xinging Zheng , Li Li and Jingwen Ran ORCID logo EMAIL logo
Published/Copyright: February 12, 2020

Abstract

C16H28O18N6Cd2, triclinic, P1̄ (no. 2), a = 7.8375(3) Å, b = 7.8877(4) Å, c = 12.0841(6) Å, α = 85.956(2)°, β = 89.833(2)°, γ = 68.269(1)°, V = 692.00(6) Å3, Z = 2, Rgt(F) = 0.0159, wRref(F2) = 0.0395, T = 293(2) K.

CCDC no.: 1977530

A part of the molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colorless cubic
Size:0.30 × 0.26 × 0.20 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:1.63 mm−1
Diffractometer, scan mode:SMART, ω
θmax, completeness:27.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:15249, 3170, 0.019
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 3031
N(param)refined:211
Programs:Bruker [1], SHELX [2], [3], Diamond [4]
Table 2:

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

AtomxyzUiso*/Ueq
Cd10.47737(2)0.33223(2)0.22026(2)0.02556(4)
O10.74684(17)0.3045(2)0.12440(10)0.0375(3)
O21.04804(17)0.21930(19)0.14435(10)0.0369(3)
O31.33967(18)0.1366(2)0.35142(13)0.0508(4)
O41.18734(17)0.42134(18)0.29185(11)0.0374(3)
O50.54645(18)0.05893(17)0.12996(10)0.0355(3)
O60.4351(2)0.6349(2)0.22289(16)0.0535(4)
N10.71370(18)0.2643(2)0.34752(11)0.0269(3)
N30.29412(19)0.38984(19)0.05065(11)0.0279(3)
H3A0.17630.41890.06690.034*
H3B0.30490.48360.00980.034*
N20.35370(18)0.23267(18)−0.00989(11)0.0258(3)
H20.31160.2367−0.07610.031*
C10.8743(2)0.2640(2)0.30759(12)0.0224(3)
C21.0171(2)0.2588(2)0.37760(13)0.0252(3)
C30.9906(3)0.2525(3)0.49158(15)0.0390(4)
H31.08330.24950.54050.047*
C40.8267(3)0.2507(3)0.53152(15)0.0460(5)
H40.80780.24540.60750.055*
C50.6910(2)0.2570(3)0.45720(14)0.0375(4)
H50.58010.25620.48420.045*
C60.8920(2)0.2636(2)0.18233(13)0.0249(3)
C71.1944(2)0.2694(2)0.33610(13)0.0294(3)
C80.4749(2)0.0795(2)0.03664(12)0.0247(3)
O70.1648(2)0.8640(2)0.08232(13)0.0457(3)
O80.3776(2)0.2109(2)0.65727(14)0.0489(4)
O90.0870(2)0.2870(2)0.81199(15)0.0555(4)
H9A0.01440.39860.80500.067*
H9B0.032(4)0.234(4)0.835(2)0.067*
H8B0.453(4)0.109(4)0.653(2)0.067*
H8A0.310(4)0.203(4)0.698(2)0.067*
H6A0.492(4)0.677(4)0.254(2)0.067*
H6B0.365(4)0.709(4)0.182(2)0.067*
H7A0.134(4)0.972(4)0.089(2)0.067*
H7B0.176(4)0.842(4)0.021(2)0.067*

Source of material

Chemicals were purchased from commercial source. The solvent used in the synthesis is deionized water. IR spectra were measured on a Nicolet 170SX spectrophotometer in the 4000–400 cm−1 region.

A mixture of 2,3-pyridinedicarboxylic acid (0.5 mmol, 83.5 mg), NaOH (1 mmol, 40 mg) and H2O (5 mL) was placed in a high pressure resistant glass bottle (20 mL), the bottle was sealed and heated at 353 K for 30 min. A solution of oxalyl dihydrazide [5] (0.5 mmol, 59 mg), Cd (CH3COO)2 ⋅ 2H2O (1 mmol, 266 mg) and H2O (5 mL) was added and the solution stayed for one night at room temperature. Colorless cubic crystals were obtained (yield 56% based on Cd). IR (cm−1, KBr): 3304 (s), 2979 (w), 1687 (w), 1575 (vs), 1388 (vs), 1110 (m), 1009 (w), 853 (m), 708 (s), 523 (m).

Experimental details

H atoms were positioned geometrically and treated as riding, with C—H = 0.93 Å and with Uiso(H) = 1.2Ueq(C).

Comment

Research focused on coordination polymers due to their versatile architecture and potential applications for luminescent properties, magnetic interactions, catalytic ability, and so on [6], [7], [8]. It is critical to choose ligands to synthesize novel complexes. 2,3-Pyridinedicarboxylic acid ligand has been widely used to construct a series of metal complexes for its multiple coordination function [9], [10], [11].

The structure of the complex is as shown in the figure. The complex crystallizes in the triclinic system and P1 space group. The central Cd (II) ion is seven-coordinated by three O atoms and one N atom from two deprotonated 2,3-pyridinedicarboxylic acid ligands (pda2−) (N1, O1, O3A and O4A, where symmetry code A is −1 + x, +y, +z), one oxalyl dihydrazide ligand (N3, O5) and one water molecule (O6). The distance of Cd—O ranges from 2.2891(16) to 2.6319(18) Å, which is in good agreement with the reported [12]. Each pda2− ion bridges two Cd (II) ions along a-axis to form a one-dimensional chain structure. Two adjacent Cd (II) ions were connected by oxalic hydrazine ligand along b-axis, forming a ladder shaped one-dimensional chain. A closed ring is formed by two pda2− ions, two oxalyl dihydrazide ligands and four Cd (II) ions. Each one-dimensional chain is connected to each other through O—H⋯O and N—H⋯O hydrogen bonds.

Award Identifier / Grant number: 2019ZYYD074

Funding statement: This work was supported by Hubei Provincial Central Committee Guiding Local Science and Technology Development Project (No. 2019ZYYD074).

References

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Received: 2019-11-11
Accepted: 2020-01-14
Published Online: 2020-02-12
Published in Print: 2020-04-28

©2020 Xinging Zheng et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  76. Crystal structure of [[Mo3Se7(S2CNEt2)3]2(μ-Se)] ⋅ 2(C6H4Cl2), C42H68Cl4Mo6N6S12Se15
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  78. The crystal structure of (2,3-dioxo-5,6:13,14-dibenzo-9,10-benzo-1,4,8,11-7, 11-diene-κ4N,N′,N′′,N′′′)-nickel(II), Ni(C22H14N4O2)
  79. Crystal structure of 3-(1-benzyl-2-ethyl-4-nitro-1H-imidazol-5-ylthio)-propanoic acid, C15H17N3O4S
  80. The crystal structure of dichlorobis(2-(dicyclohexylphosphino)-2′,4′,6′-tri-i-propyl-1,1′-biphenyl) palladium(II)-dichloroform, C68H100Cl8P2Pd
  81. Crystal structure and antimicrobial properties of (1,4,7,10-tetraoxacyclododecane-κ4O,O′,O′′,O′′′)cesium(I) pentaiodide, C16H32CsI5O8
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