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Type: Artigo de periódico
Title: Synthesis, solid-state and in-solution structures of a new seven coordinated manganese(II) complex via X-ray diffraction and electrospray ionization mass spectrometry
Author: Lessa, JA
Horn, A
Pinheiro, CB
Farah, LL
Eberlin, MN
Benassi, M
Catharino, RR
Fernandes, C
Abstract: The structure of the [Mn(HPClNOL)(eta(1)-NO3)(eta(2)-NO3)1 complex [HPClNOL = 1-(bis-pyridin-2-ylmethyl-amino)-3-chloropropan-2-ol] in the solid-state and in H2O/MeOH solution was investigated by monocrystal X-ray diffraction and ESI(+)-MS/MS. X-ray reveals that I is a seven-coordinated complex with a discrete mononuclear structure in which the manganese(II) ion is coordinated by the tripodal HPClNOL ligand and two nitrate ions, one monodentate and the other bidentate. ESI(+)-MS/MS shows that mononuclear, dinuclear and trinuclear manganese cationic species are present in solution, probably in equilibrium with neutral 1. This contrasting scenario illustrates for 1 the importance of both solid-state and in-solution characterizations of coordination compounds with potential bioinorganic interest. (c) 2007 Elsevier B. V. All rights reserved.
Subject: ESI(+)-MS/MS
seven-coordinated manganese
manganese enzyme
synthetic model
in-solution characterization
water soluble manganese compound
Country: Holanda
Editor: Elsevier Science Bv
Citation: Inorganic Chemistry Communications. Elsevier Science Bv, v. 10, n. 8, n. 863, n. 866, 2007.
Rights: fechado
Identifier DOI: 10.1016/j.inoche.2007.04.001
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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