Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/123456789/18530
Title: Bis(selone) Complexes of Palladium(II), Platinum(II), and Gold(III): Synthesis and Structural Studies
Authors: RANI, V
SINGH, HB
BUTCHER, RJ
Keywords: Highly-Active Catalysts
N-Heterocyclic Carbenes
Se Ligands Bearing
Selone Ligands
Copper(I) Complexes
Antithyroid Drugs
Organochalcogen S
3rd-Row Atoms
Selenium
Coordination
Issue Date: 2017
Publisher: WILEY-V C H VERLAG GMBH
Citation: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,(31)3720-3728
Abstract: New bis(selone)-based metal complexes, [MnLxCly] {M = Pd, L = 3,3-[(2-bromo-1,3-phenylene)bis(methylene)]bis(1-mesityl-1,3-dihydro-2H-imidazole-2-selone) (15), n = 2, x = 2, y = 4, C64H66N8Cl4Br2Se4Pd2) (17); M = Pt, L = 15, n = 2, x = 2, y = 4, C64H66N8Cl4Br2Se4Pt2 (18); M = Au, L = 15, n = 1, x = 1, y = 1, C32H33N4Se2BrAuCl (19)} were synthesized by the reaction of bis(selone) (15) with Pd(COD)Cl-2 (yield 31%), Pt(COD)Cl-2 (yield 34%), and [AuCl(SMe2)] (yield 57%), respectively. Single-crystal X-ray diffraction analysis reveals that 17 and 18 exist as [2+2] dinuclear self-assembled 24-membered metallamacrocycles, while the spectroscopic data for the gold(III) complex 19 indicate that it exists as a new organogold(III) bromide, where a facile oxidative addition occurs across the C-Br bond. Natural bond orbital analysis showed the variation of the natural population analysis (NPA) charge on the Se atoms, from negative to positive, after complexation (15: -0.25; 17: 0.08; 18: 0.09-0.13). Moreover, the NPA charge on the metal atom is found to be negative for complexes 17 and 18 (Pd: -0.133 for 17; Pt: -0.23 and -0.251 for 18). However, for complex 19, the gold atom carries a positive charge (0.15).
URI: http://dx.doi.org/10.1002/ejic.201700377
http://localhost:8080/xmlui/handle/123456789/18530
ISSN: 1434-1948
1099-0682
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