Preparation and Characterisation of the Cyano-Bridged Transition Metal Complexes Using N,N-Diethyl Thiourea as a Ligand

IF 0.8 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

South African Journal of Chemistry-Suid-Afrikaanse Tydskrif Vir Chemie Pub Date : 2021-01-01 DOI:10.17159/0379-4350/2021/v75a15

D. Karaağaç

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引用次数: 0

Abstract

ABSTRACT New cyano bridged transition metal complexes, [Cu(detu)4Ni(CN)4]-2H2O (1) and [Zn(H2O)(detu)Ni(CN)4]-2H2O (2) (detu = N, N' diethyl thiourea) have been synthesised in powder form. Their structures were illuminated by using spectroscopic, thermal and elemental analysis techniques. The nickel atom exhibits square planar geometry in these complexes by coordinating with the cyano group's nitrogen atoms. The copper atom of 1 is six coordinated with two bridging cyano groups and four detu ligands. In contrast, the zinc atom of 2 is six coordinated with four bridging cyano groups, one detu ligand and one aqua ligand. In addition, the structure of 2 is formed from polymeric layers of |Zn-Ni(CN)41 „ with the detu and aqua ligands bonded to the zinc atom. Thermal stabilities and decomposition products of 1 and 2 were examined in the static air atmosphere between 30 and 900 °C. Keywords: btetracyanonickelate(II) complex, N,N'-diethyl thiourea, cyano-bridged complex, vibration spectra, thermal analysis.

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以N,N-二乙基硫脲为配体的氰桥过渡金属配合物的制备与表征

合成了新型氰基桥接过渡金属配合物[Cu(detu)4Ni(CN)4]-2H2O(1)和[Zn(H2O)(detu)Ni(CN)4]-2H2O (2) (detu = N, N'二乙基硫脲)。利用光谱、热分析和元素分析技术对其结构进行了分析。在这些配合物中，镍原子通过与氰基的氮原子配位而呈现出正方形的平面几何形状。1的铜原子为6，与两个桥接氰基和四个二配体配位。相反，2的锌原子为6，与4个桥接氰基、1个二配体和1个水配体配位。此外，2的结构是由|Zn-Ni(CN)41”的聚合物层形成的，其配体与锌原子键合。1和2的热稳定性和分解产物在30至900°C的静态空气气氛中进行了测试。关键词:二氰酸盐配合物，N,N'-二乙基硫脲，氰桥配合物，振动谱，热分析

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来源期刊

South African Journal of Chemistry-Suid-Afrikaanse Tydskrif Vir Chemie 化学-化学综合

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Original work in all branches of chemistry is published in the South African Journal of Chemistry. Contributions in English may take the form of papers, short communications, or critical reviews.