Synthesis, Crystal Structures, Electronic Spectra, and Magnetic Properties of Thiolato-Bridged Trinuclear Cobalt(II) Complexes with N, N, S-Tridentate Thiolate Ligands

Masahiro Mikuriya, Atsushi Fujita, Takanori Kotera, Daisuke Yoshioka, Hiroshi Sakiyama, Makoto Handa, Motohiro Tsuboi

Abstract


New trinuclear CoII complexes, [{Co(apaet)2}2Co]X2 (apaet = 2-[(3-aminopropyl)amino]ethanethiolato; X = SCN (1), ClO4 (2), NO3 (3), Cl (4), Br (5), I (6)) and [{Co(apampt)2}2Co]X2 (apampt = 1-[(3-aminopropyl)amino]-2-methylpropane-2-thiolato; X = NO3(7), ClO4 (8), Cl (9), Br (10), I (11)), and mononuclear CoIII complexes, [Co(apaet)2]X (X = ClO4 (12), NO3 (13)), were synthesized. Single-crystal X-ray crystallography of 1 and 7 confirmed that the trinuclear complexes have a linear arrangement of octahedral CoIIS2N4-tetrahedral CoIIS4-octahedral CoIIS2N4 chromophores where two thiolate ligands are coordinated to each terminal Co atom in a mer coordination mode and the two thiolato S atoms are further bound to the central Co atom, which is consistent with the electronic spectra and antiferromagnetic properties

Keywords


thiolato complex; cobalt complex; mononuclear Co(III) complex; trinuclear Co(II) complex

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References


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DOI: https://doi.org/10.26877/asset.v3i1.8352

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