Syntheses, Structures, Properties, and Theoretical Studies of d10 Metal Complexes of Ethylenediamine

Wen-Tong Chen; Ming-Sheng Wang; Li-Zhen Cai; Guo-Cong Guo; Jin-Shun Huang

doi:10.1071/CH05109

RESEARCH ARTICLE

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Syntheses, Structures, Properties, and Theoretical Studies of d¹⁰ Metal Complexes of Ethylenediamine

Wen-Tong Chen ^A ^B , Ming-Sheng Wang ^A , Li-Zhen Cai ^A , Guo-Cong Guo ^A ^C and Jin-Shun Huang ^A

+ Author Affiliations

- Author Affiliations

^A State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.

^B Graduate School of Chinese Academy of Sciences, Beijing 100039, China.

^C Corresponding author. Email: gcguo@ms.fjirsm.ac.cn

Australian Journal of Chemistry 58(8) 578-584 https://doi.org/10.1071/CH05109
Submitted: 30 April 2005 Accepted: 27 June 2005 Published: 31 August 2005

Abstract

Four new tris(ethylenediamine)-chelated metal complexes [Zn(en)₃]I₂·0.5en (1), [Cd(en)₃]Cl₂·H₂O (2), [Cd(en)₃]Br₂ (3), and [Hg(en)₃]Cl₂ (4) have been synthesized by solvothermal reactions. The complexes contain discrete [M(en)₃]²⁺ (M = Zn, Cd, Hg) cations and halide anions. The Zn²⁺ and Cd²⁺ ions are six-coordinated by three ethylenediamine molecules to form octahedra, while the Hg²⁺ ion has a trigonal prism coordination geometry. These complexes all display fluorescent properties in the blue range, which are attributed to a ligand-to-metal charge-transfer mechanism according to molecular orbital calculations. The solid-state diffuse reflectance spectra show that 1–4 are wide band-gap semiconductors. IR and thermogravimetric analyses for 1–4 are also presented in this paper.

Acknowledgements

We gratefully acknowledge the financial support of the NSF of China (20131020), the NSF for Distinguished Young Scientist of China (20425104), and the Natural Sciences Foundation of Fujian Province (2003I031).

References

Syntheses, Structures, Properties, and Theoretical Studies of d10 Metal Complexes of Ethylenediamine

Abstract

Acknowledgements

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Syntheses, Structures, Properties, and Theoretical Studies of d¹⁰ Metal Complexes of Ethylenediamine