Coordination bond formation at charge-transfer phase transition in (BDTA)2[Co(mnt)2]

Yoshikatsu Umezono; Wataru Fujita; Kunio Awaga

doi:10.1021/ja057207i

Coordination bond formation at charge-transfer phase transition in (BDTA)2[Co(mnt)2]

J Am Chem Soc. 2006 Feb 1;128(4):1084-5. doi: 10.1021/ja057207i.

Authors

Yoshikatsu Umezono¹, Wataru Fujita, Kunio Awaga

Affiliation

¹ Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Japan.

PMID: 16433518
DOI: 10.1021/ja057207i

Abstract

The crystal structure of a charge-transfer salt, (BDTA)2[Co(mnt)2], where BDTA is 1,3,2-benzodithiazolyl and mnt is maleonitriledithiolate, consisted of an alternating stacking column of a head-to-head BDTA+ dimer and a planar [Co(mnt)2]2- dianion at 253 K. Magnetic measurements and structural analyses revealed a phase transition at 190 K, where a partial electron transfer occurred from [Co(mnt)2]2- to one of the BDTA+ cations, forming a coordination bond between the two.