p-Hydroquinone-metal compounds: synthesis and crystal structure of two novel VV-p-hydroquinonate and VIV-p-semiquinonate species

Chryssoula Drouza; Vagelis Tolis; Volker Gramlich; Cathrine Raptopoulou; Aris Terzis; Michael P Sigalas; Themistoklis A Kabanos; Anastasios D Keramidas

doi:10.1039/b207330g

p-Hydroquinone-metal compounds: synthesis and crystal structure of two novel VV-p-hydroquinonate and VIV-p-semiquinonate species

Chem Commun (Camb). 2002 Dec 7:(23):2786-7. doi: 10.1039/b207330g.

Authors

Chryssoula Drouza¹, Vagelis Tolis, Volker Gramlich, Cathrine Raptopoulou, Aris Terzis, Michael P Sigalas, Themistoklis A Kabanos, Anastasios D Keramidas

Affiliation

¹ Department of Chemistry, University of Cyprus, Nicosia 1678, Cyprus.

PMID: 12478746
DOI: 10.1039/b207330g

Abstract

Reaction of the p-hydroquinone derivative H2Na4bicah.4H2O with either VIVOSO(4).3H2O and NaVVO3 in equivalent quantities or with NaVVo3 yields the tetranuclear VIVO2+ macrocycle-semiquinonate compound Na6[(VIVO)4-(mu2-O)2[mu2-bicas.(-5)-N,O,O,O]2].Na2SO(4).20H2O (1.Na2SO(4).20H2O) and the dinuclear cis-VVO2(+)-hydroquinone species Na4[(VVO2)2[mu2-bicah(-6)-N,O,O,O]].11H2O (2.11H2O) respectively. Compounds 1.Na2SO(4).20H2O and 2.11H2O were characterized by X-ray structure analysis and ab initio calculations.