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Title: Reactions of [(Ar)Ru(PPh3)2(CH3CN)]X (Ar=Cp*,η5-C5Me5 and indenyl, η5-C9H7; X=PF6 or BF4) with terpyridines: Hypodentate nature of terpyridines (Phterpy, Pyterpy and Diterpy)
Authors: Rymmai, E K
Rao, K Mohan
Issue Date: Aug-2003
Publisher: NISCAIR-CSIR, India
Abstract: Ligand displacement reactions of the complexes of the type(Ar)Ru(PPh3)2(CH3CN)]PF6 {Ar=Cp*(1) and indenyl (2)} have been investigated with N3- terpyridine ligands, 4'-phenyl- 2,2':6',2" terpyridine (phterpy), 4' -(4'"-pyridyl)-2,2':6',2" terpyridine (pyterpy) and 1,4-bis(2,2':6,6" terpyridin-4-yl) benzene (diterpy). The complexes [(Ar)Ru(PPh3)2(CH3CN)]PF6 {Ar=Cp* (1) and indenyl (2)} are reacted with these ligands to form stable complexes of the type [Cp*Ru(PPh3)(phterpy)]BF4 (3), [Cp*Ru(PPh3)(pyterpy)]BF4 (4), [(η5ind)Ru(PPh3)(phterpy)]PF6 (5), [(η5ind)Ru(PPh3)(pyterpy)]PF6 (6), [(Cp*Ru(PPh3)}2 (diterpy)](BF4)2 (7) and [(η5ind)Ru(PPh3)}2(diterpy)](PF6)2 (8) where respective ligands are coordinated in a bidentate fashion. When these reactions are carried out with chloro analogues [Cp*Ru(PPh3)2Cl] (9) and [(η5-ind)Ru(PPh3)2Cl] (10) with respective ligands viz. phterpy and pyterpy, a mixture of products are isolated including the complex type 3-6 and [RuCl(PPh3)2(N3-phterpy)]PF6 (11) and [RuCl(PPh3)2(N3-Pyterpy)]PF6 (12) respectively. All these complexes have been characterized by spectral and analytical data.
Page(s): 1892-1895
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(08) [August 2003]

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