Display options
Cite
Oji K, Igashira-Kamiyama A, Yoshinari N, et al. Formation, expansion, and interconversion of metallarings in a sulfur-bridged Au(I) Co(III) coordination system. Angew Chem Int Ed Engl. 2014;53(7):1992-6doi: 10.1002/anie.201309986.
Oji, K., Igashira-Kamiyama, A., Yoshinari, N., & Konno, T. (2014). Formation, expansion, and interconversion of metallarings in a sulfur-bridged Au(I) Co(III) coordination system. Angewandte Chemie (International ed. in English), 53(7), 1992-6. https://doi.org/10.1002/anie.201309986
Oji, Katsuya, et al. "Formation, expansion, and interconversion of metallarings in a sulfur-bridged Au(I) Co(III) coordination system." Angewandte Chemie (International ed. in English) vol. 53,7 (2014): 1992-6. doi: https://doi.org/10.1002/anie.201309986
Oji K, Igashira-Kamiyama A, Yoshinari N, Konno T. Formation, expansion, and interconversion of metallarings in a sulfur-bridged Au(I) Co(III) coordination system. Angew Chem Int Ed Engl. 2014 Feb 10;53(7):1992-6. doi: 10.1002/anie.201309986. Epub 2014 Jan 08. PMID: 24403126.
Copy Download .nbib Format: NLM
Share it on

Angew Chem Int Ed Engl. 2014 Feb 10;53(7):1992-6. doi: 10.1002/anie.201309986. Epub 2014 Jan 08.

Formation, expansion, and interconversion of metallarings in a sulfur-bridged Au(I) Co(III) coordination system.

Angewandte Chemie (International ed. in English)

Katsuya Oji, Asako Igashira-Kamiyama, Nobuto Yoshinari, Takumi Konno

Affiliations

  1. Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan).

PMID: 24403126 DOI: 10.1002/anie.201309986

Abstract

A novel Au(I) Co(III) coordination system that is derived from the newly prepared [Co(D-nmp)2 ](-) (1(-) ; D-nmp=N-methyl-D-penicillaminate) and a gold(I) precursor Au(I) is reported. Complex 1(-) acts as a sulfur-donating metallaligand and reacts with the gold(I) precursor to give [Au2 Co2 (D-nmp)4 ] (2), which has an eight-membered Au(I) 2 Co(III) 2 metallaring. Treatment of 2 with [Au2 (dppe)2 ](2+) (dppe=1,2-bis(diphenylphosphino)ethane) leads to the formation of [Au4 Co2 (dppe)2 (D-nmp)4 ](2+) (3(2+) ), which consists of an 18-membered Au(I) 4 Co(III) 2 metallaring that accommodates a tetrahedral anion (BF4 (-) , ClO4 (-) , ReO4 (-) ). In solution, the metallaring structure of 3(2+) is readily interconvertible with the nine-membered Au(I) 2 Co(III) metallaring structure of [Au2 Co(dppe)(D-nmp)2 ](+) (4(+) ); this process depends on external factors, such as solvent, concentration, and nature of the counteranion. These results reveal the lability of the AuS and AuP bonds, which is essential for metallaring expansion and contraction.

Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: S ligands; heterometallic complexes; metallacycles; ring expansion; template synthesis

Publication Types