Synthesis, crystal structure, spectral properties and catalytic activityof hexakis(imidazole)manganese(II) bisindole-2-carboxylatobisneocuproine bisdimethyl sulfoxide solvates{[MnII(Im)6].2(2-IC).2(NC).2(DMSO)}

Autor: Lemoine, P., Viossat, V., Dayan, E., Dung, N.-H., Viossat, B.
Přispěvatelé: Laboratoire de cristallographie et RMN biologiques (LCRB - UMR 8015), Université Paris Descartes - Paris 5 (UPD5)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Systèmes interfaciaux à l'echelle nanometrique (SIEN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Cristallochimie Bioinorganique, Université Paris-Sud - Paris 11 (UP11)-Faculté de Pharmacie, Laboratoire de cristallographie et RMN biologiques ( LCRB - UMR 8015 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Centre National de la Recherche Scientifique ( CNRS ), Systèmes interfaciaux à l'echelle nanometrique ( SIEN ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -ESPCI ParisTech-Centre National de la Recherche Scientifique ( CNRS ), Université Paris-Sud - Paris 11 ( UP11 ) -Faculté de Pharmacie, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5), Université Pierre et Marie Curie - Paris 6 (UPMC)-ESPCI ParisTech-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: Inorganica Chimica Acta
Inorganica Chimica Acta, 2006, 250, pp.4274-4280
Inorganica Chimica Acta, Elsevier, 2006, 250, pp.4274-4280
ISSN: 0020-1693
Popis: International audience; Synthesis, X-ray crystal structure and IR spectrum of {[MnII(Im)6] Æ 2(2-IC) Æ 2(NC) Æ 2(DMSO)} (Im = imidazole, 2-HIC = indole-2- carboxylic acid, NC = 2,9-dimethyl-1,10-phenanthroline, DMSO = dimethyl sulfoxide) are reported. The manganese(II) ion has octahedral geometry with a MnN6 core. The crystal structure is completed by two NC, two 2-IC- and two DMSO solvate molecules. The individual cations are linked into chains running parallel to the a axis by four intermolecular hydrogen bonding involving two 2-IC-solvate. Moreover, these chains are connected by p–p stacking interactions which occur between neocuproine molecules related through inversion center. In IR spectroscopy, the compound spectrum is roughly similar to the imidazole one: (i) above 1800 cm1, the bands are broad, but when focussing on some of them a doublet structure can be found; (ii) below 1800 cm1, the bands are sharp and it is then possible to point out the modification of S–O band when this later is involved in bifurcated hydrogen bonding to a second solvate 2-IC-. The compound catalyses the disproportionation of H2O2; moreover an additional quantity of imidazole increases the reaction rate.
Databáze: OpenAIRE
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