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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/3784

Title: Cyclodiphosphazanes with hemilabile ponytails: Synthesis, transition metal chemistry (Ru(II), Rh(I), Pd(II), Pt(II)), and crystal and molecular structures of mononuclear (Pd(II), Rh(I)) and Bi- and tetranuclear rhodium(I) complexes
Authors: CHANDRASEKARAN, P
MAGUE, JT
BALAKRISHNA, MS
Keywords: x-ray structures
coordination chemistry
platinum(ii) complexes
ligands
diphosphazanes
derivatives
organometallics
palladium(ii)
bis(phosphines)
phosphines
Issue Date: 2005
Publisher: AMER CHEMICAL SOC
Citation: INORGANIC CHEMISTRY, 44(22), 7925-7932
Abstract: Cyclocliphosphazanes having hemilabile ponytails such as cis-[(BuNP)-Bu-t(OC6H4OMe-o)](2) (2), cis-[(BuNP)-Bu-t(OCH2CH2-OMe)](2) (3), cis-[(BuNP)-Bu-t((OCHCHSMe)-C-2-S-2)](2) (4), and cis-[(BuNP)-Bu-t(OCH2CH2NMe2)](2) (5) were synthesized by reacting cis-[(BuNPCl)-Bu-t](2) (1) with corresponding nucleophiles. The reaction of 2 with [M(COD)Cl-2] afforded cis-[MCl2(2)(2)] derivatives (M = Pd (6), Pt (7)), whereas, with [Pd(NCPh)(2)Cl-2], trans-[MCl2(2)(2)] (8) was obtained. The reaction of 2 with [Pd(PEt3)Cl-2](2), [Ru(eta(6)-p-cymene)Cl-2](2), and [M(COD)Cl](2) (M = Rh, Ir) afforded mononuclear complexes of Pd(II) (9), Ru(II) (11), Rh(l) (12), and Ir(l) (13) irrespective of the stoichiometry of the reactants and the reaction condition. In the above complexes the cyclodiphosphazane acts as a monodentate ligand. The reaction of 2 with [PdCl(eta 3-C3H5)](2) afforded binuclear complex [(PdCl(eta(3)-C3H5)](2){((BuNP)-Bu-t(OC6H4OMe-o))(2)-KP}] (10). The reaction of ligand 3 with [Rh(CO)(2)CI](2) in 1:1 ratio in CH3CN under reflux condition afforded tetranuclear rhodium(l) metallamacrocycle (14), whereas the ligands 4 and 5 afforded bischelated binuclear complexes 15 and 16, respectively. The crystal structures of 8, 9, 12, 14, and 16 are reported.
URI: http://dx.doi.org/10.1021/ic0509478
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3784
http://hdl.handle.net/10054/3784
ISSN: 0020-1669
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