"Dumbbell"- and "Clackers"-Shaped Dimeric Derivatives of Monocarba-closo-dodecaborate

Yu Kitazawa; Mamoru Watanabe; Yui Masumoto; Mai Otsuka; Kazunori Miyamoto; Atsuya Muranaka; Daisuke Hashizume; Ryo Takita; Masanobu Uchiyama

doi:10.1002/anie.201710122

"Dumbbell"- and "Clackers"-Shaped Dimeric Derivatives of Monocarba-closo-dodecaborate

Angew Chem Int Ed Engl. 2018 Feb 5;57(6):1501-1504. doi: 10.1002/anie.201710122. Epub 2018 Jan 16.

Authors

Yu Kitazawa^{1

2}, Mamoru Watanabe¹, Yui Masumoto^{1

2}, Mai Otsuka¹, Kazunori Miyamoto¹, Atsuya Muranaka², Daisuke Hashizume³, Ryo Takita², Masanobu Uchiyama^{1

2}

Affiliations

¹ Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
² Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science, and Elements Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.
³ Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.

PMID: 29210160
DOI: 10.1002/anie.201710122

Abstract

We designed, synthesized, and characterized two types of dimeric forms of monocarba-closo-dodecaborate, namely, a "dumbbell"-shaped dianion having a C-C bond and a "clackers"-shaped monoanion having an iodonium linker. The unique architectures of these anionic molecules were established by X-ray analysis. Spectroscopic analysis, DFT calculations, and reactivity experiments revealed high anionic and chemical stability of both anions, which are crucial properties for weakly coordinating anions.

Keywords: carborane anion; dianion; iodane; iodonium; weakly coordinating anions.

Publication types

Research Support, Non-U.S. Gov't