Stepwise spin-state switching in a manganese(iii) complex

Ghosh, S and Bagchi, S and Das, M and Kamilya, S and Mondal, A (2020) Stepwise spin-state switching in a manganese(iii) complex. In: Dalton Transactions, 49 (42). pp. 14776-14780.

	PDF dal_tra_42_14776-14780_2020.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy
	PDF d0dt02746d1.pdf - Published Supplemental Material Restricted to Registered users only Download (4MB) | Request a copy

Abstract

A mononuclear manganese(iii) complex containing a flexible hexadentate chelating ligand has been prepared and characterized by performing, at various temperatures, single-crystal X-ray diffraction analyses and magnetic, spectroscopic, and electrochemical studies. The complex was shown to consist of an MnN4O2 octahedral coordination environment, and to exhibit reversible two-step thermally induced spin-state switching, a gradual one at 168 K and an abrupt one at 103 K. Structural analyses revealed the existence of three spin-states, namely high-spin, low-spin, and intermediate states, during the spin-state switching process. Electrochemistry studies showed the quasi-reversible reduction and oxidation of the manganese(iii) center with a comparatively easily accessible reduced state. This journal is © The Royal Society of Chemistry.

Item Type:	Journal Article
Publication:	Dalton Transactions
Publisher:	Royal Society of Chemistry
Additional Information:	The copyright of this article belongs to Royal Society of Chemistry
Keywords:	Coordination reactions; Electrochemistry; Manganese metallography; Nitrogen compounds; Single crystals; Spin dynamics; X ray diffraction analysis, Chelating ligands; Electrochemical studies; Intermediate state; Manganese complex(III); Octahedral coordination; Reversible reduction; Single crystal X-ray diffraction analysis; Spin-state switching, Manganese compounds, article; chelation; crystal; electrochemistry; oxidation; structure analysis; X ray diffraction
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	01 Feb 2021 08:50
Last Modified:	01 Feb 2021 08:50
URI:	http://eprints.iisc.ac.in/id/eprint/67305

Actions (login required)

View Item