Document Type

Journal Article

Authors

Renhua Qiu, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Zhengong Meng, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Shuangfeng Yin, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Xingxing Song, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Nianyuan Tan, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Yongbo Zhou, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Kun Yu, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Xinhua Xu, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Shenglian Luo, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
Chak-Tong Au, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan UniversityFollow
Wai-Yeung Wong, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan UniversityFollow

Department/Unit

Department of Chemistry

Title

Synthesis and structure of binuclear O/S-bridged organobismuth complexes and their cooperative catalytic effect on CO2 fixation

Language

English

Abstract

In the synthesis of binuclear organobismuth complexes (1-6) through treatment of organobismuth chlorides with NaOH or Na 2S·9H 2O, the two 5,6,7,12-tetrahydrodibenz [c,f]-[1,5]azabismocine frameworks are cross-linked by either a sulfur or an oxygen atom. The complexes (1-6) show high catalytic efficiency in the synthesis of cyclic carbonates from 2-(chloromethyl)oxirane and CO 2. Compared with their precursor chlorides (7-9), methoxide 10 and methanethioate 11 which are mononuclear organobismuth complexes, the binuclear organobismuth complexes show higher cooperative catalytic effect. However, the complexes with an oxygen bridge (1-3) are not stable in air and lose their catalytic efficiency because of hydrolysis or CO 2 adsorption (forming organobismuth carbonates in the latter case). Nonetheless, the binuclear organobismuth complexes (4-6) with a sulfur bridge are highly stable in air and can be applied in the synthesis of cyclic carbonates (with the co-presence of Bu 4NI) across various kinds of epoxides, thus exhibiting satisfactory efficiency and selectivity. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

Bridging ligands, Carbon dioxide fixation, Cooperative effects, Homogeneous catalysis, Oxygen heterocycles

Publication Date

2012

Source Publication Title

ChemPlusChem

Volume

77

Issue

5

Start Page

404

End Page

410

Publisher

Wiley-VCH Verlag

DOI

10.1002/cplu.201200030

Link to Publisher's Edition

http://dx.doi.org/10.1002/cplu.201200030

ISSN (print)

21926506

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