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Synthesis and characterization of palladium(II) and platinum(II) adducts and cyclometalated complexes of 6,6′-cimethoxy-2,2′-bipyridine: C(sp3)—H and C(sp2)—H bond activations

Cocco, Fabio and Zucca, Antonio and Stoccoro, Sergio and Serratrice, Maria and Guerri, Annalisa and Cinellu, Maria Agostina (2014) Synthesis and characterization of palladium(II) and platinum(II) adducts and cyclometalated complexes of 6,6′-cimethoxy-2,2′-bipyridine: C(sp3)—H and C(sp2)—H bond activations. Organometallics, Vol. 33 (13), p. 3414-3424. ISSN 0276-7333. eISSN 1520-6041. Article.

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DOI: 10.1021/om5003057

Abstract

Reactions of 6,6′-dimethoxy-2,2′-bipyridine (bipy2OMe) with palladium(II) and platinum(II) chlorides or acetates afforded either neutral, [M(bipy2OMe)Cl2], and cationic, [Pt(bipy2OMe)2][Pt(DMSO)Cl3]2, adducts or cyclometalated derivatives [M(bipyOMe,OCH2)X] and [M(bipy2OMe-H)X]2 (M = Pd, X = OAc, Cl; M = Pt, X = Cl) arising from respectively C(sp3)—H and C(sp2)—H bond activation, depending on the metal precursor, solvent, and other reaction conditions. Cyclometalated complexes of the new ligand 6-hydroxy-6′-methoxy-2,2′-bipyridine (bipyOMe,OH), arising from monodemethylation of bipy2OMe, were also formed as coproducts under certain reaction conditions. The crystal structures of [Pt(bipy2OMe)2][Pt(DMSO)Cl3]2 and of [Pd(bipy2OMe-H)(OAc)]2 have been solved by X-ray crystallography.

Item Type:Article
ID Code:10053
Status:Published
Refereed:Yes
Uncontrolled Keywords:Palladium(II), Platinum(II), cyclometalated derivatives, X-ray crystallography, cyclometalated complexes
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:American Chemical Society
ISSN: 0276-7333
eISSN:1520-6041
Deposited On:15 Sep 2014 11:23

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