Cis-trans isomerization in the syntheses of ruthenium cyclam complexes with nitric oxide


Autoria(s): Vidal, Robson da Silva; Doro, Fabio Gorzoni; Ferreira, Kleber Queiroz; da Rocha, Zenis Novais; Castellano, Eduardo Ernesto; Nikolaou, Sofia; Tfouni, Elia
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

14/10/2013

14/10/2013

2012

Resumo

The cis to trans isomerizations during the syntheses of trans-[Ru(NO)(OH)(cyclam)](PF6)(2), from cis-[RuCl2 (cyclam)]Cl, and [Ru(NO)Cl(cyclam)] (PF6)(2), from cis-[RuCl2(dmso)(4)], are reported. The novel trans-[Ru(NO) (OH)(cyclam)](PF6)(2) complex was characterized by X-ray crystallography and vibrational infrared and nuclear magnetic resonance spectroscopies. The Ru-N-O bond angle (176.75 degrees) and v( NO) (1835 cm(-1)) suggest a nitrosonium character for this hydroxo complex. The crystal and molecular structure of trans-[Ru(NO)Cl(cyclam)] (ClO4)(2)center dot 2 H2O is also reported. Results presented here support the cis-trans isomerization observed for the first time with ruthenium cyclam complexes. (C) 2011 Elsevier B.V. All rights reserved.

Fapesp [2006/53266-4]

FAPESP

CNPq

CNPq

CAPES

CAPES

Fapesb

FAPESB

Identificador

INORGANIC CHEMISTRY COMMUNICATIONS, AMSTERDAM, v. 15, n. 5, supl. 4, Part 1-2, pp. 93-96, JAN, 2012

1387-7003

http://www.producao.usp.br/handle/BDPI/34546

10.1016/j.inoche.2011.09.046

http://dx.doi.org/10.1016/j.inoche.2011.09.046

Idioma(s)

eng

Publicador

ELSEVIER SCIENCE BV

AMSTERDAM

Relação

INORGANIC CHEMISTRY COMMUNICATIONS

Direitos

closedAccess

Copyright ELSEVIER SCIENCE BV

Palavras-Chave #RUTHENIUM #CYCLAM #NITROSYL #NITRIC OXIDE #CIS-TRANS ISOMERIZATION #NITRITE #1,4,8,11-TETRAAZACYCLOTETRADECANE CYCLAM #MACROCYCLIC COMPLEXES #MOLECULAR-STRUCTURE #NITROSYL COMPLEXES #PENDANT-ARM #MECHANISM #CRYSTAL #NO #KINETICS #AMINE #CHEMISTRY, INORGANIC & NUCLEAR
Tipo

article

original article

publishedVersion