Naslov
Dioxomolybdenum(VI) tridentate Schiff base complexes: the role of molybdenum(VI) in obtaining novel dissymmetric polydentate Schiff base ligand

Autori
Cindrić, Marina ; Galin, Gordana ; Matković-Čalogović, Dubravka ; Hrenar, Tomislav ; Novak, Predrag ; Ljubić, Ivan ; Kajfež Novak, Tanja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts, ICOMC 2006, Vol. 2., Poster Presentations / Luis A. Oro - Zaragoza : Academic Press, 2006

Skup
XXII International Conference on Organometallic Chemistry

Mjesto i datum
Zaragoza, Španjolska, 23.07.2006. - 28.07.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
molybdenum(VI) complexes; salicylaldehyde; aminoacids; IR spectroscopy; NMR spectroscopy; X-ray analysis

Sažetak
Intensive studies have been carried out during the last decade on the biochemical, pharmacological and physicochemical functions of molybdenum. In particular, many kinds of dioxomolybdenum compounds have been synthesized in order to study the catalytic oxygen atom transfer reactions as model of molybdoenzymes. Our investigations on the molybdenum(VI) complexes with salicylaldehyde and (L-asparagine, L-glutamine, L-ornithine hydrochloride) gave results which confirmed possible catalytic role of molybdenum in oxidative decarboxylation of aminoacids. The reaction of [MoO2(sal)2] and L-asparagine resulted in the yellow crystalline product [Mo2O5(sal-L-Asn)2] (1) and coumarine-3-carboxamide, (2) while in the reaction of [MoO2(sal)2] and L-ornithine (in hydrochloride form) a novel dissymmetric polydentate ligand coordinated to the molybdenum atom was obtained (3). All products were characterized by elemental analyses, IR and NMR data and X-ray analysis (3). We performed computational methods in order to investigate a possible mechanism for the reaction of [MoO2(sal)2] and L-ornithine.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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