Crystal structure and thermo-stability of manganese chelate with MHA_-H

GRAPHICAL ABSTRACT

ABSTRACT

The manganese chelate complex with MHA_-H (the anion derived from the so-called methionine hydroxy-analogue, MHA) has been synthesized and characterized. The single-crystal structure (C₁₀H₁₈MnO₆S₂, 1, monoclinic, space group P2₁/c, Z = 4, a = 15.810(5), b = 9.359(3), c = 10.255(3) Å, β = 91.312(6)°) exhibits that each Mn(II) center is chelated by two anions derived from MHA, which is extended to μ-carboxylate O atoms bridged dinuclear Mn(II) complex. The thermo-stability of the complex 1 was investigated by thermal gravity analyses, and the apparent activation energy (E_a) of the decomposition were also calculated. CCDC 1418465

KEYWORDS:

• Crystal structure
• manganese chelate
• methionine hydroxy-analogue
• thermo-stability

Funding

The work was supported by the National Natural Science Foundation of China (No. 21301139, 21073139, 21103135, 21473132) and Natural Science Basic Research Plan in Shaanxi Province of China (No. 2015JQ2043).

Supplementary material

CCDC 1418465 contains the supplementary crystallographic data (CIF) for this article. These data can be obtained free of charge via http://www.ccdc.cam.ac.uk/conts/retrieving.html (or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB2 1EZ, UK; fax: [phone]; e-mail: [email protected].).