Ruthenium terpyridine complexes incorporating azo-imine based ancillary ligands. Synthesis, crystal structure, spectroelectrochemical properties and solution reactivities †
作者:Biplab Mondal、Mrinalini G. Walawalkar、Goutam Kumar Lahiri
DOI:10.1039/b005789o
日期:——
Rutheniumterpyridine complexes of the type [RuII(trpy)(L)(X)][ClO4]n1–15 [trpy = 2,2′∶6,2′′-terpyridine; L = NC5H4NNC6H4(R), R = H, m-Me, m-Cl, p-Me or p-Cl; X = Cl−, n = 1 (1–5); H2O, n = 2 (6–10) or OH−, n = 1 (11–15)] have been synthesized. The single crystal structures of 1 and 6 were determined. Complex 4 develops in two possible isomeric forms whereas all other complexes stabilise preferentially
Platinum complexes of diazo ligands. Studies of regioselective aromatic ring amination, oxidative halogen addition and reductive halogen elimination reactions
2-(Arylazo)pyridine ligands, L1a-1c react with the salt K2[PtCl4] to give the mononuclear complexes [PtCl2(L1)](1), which readily react with ArNH2 to yield the monochloro complexes of type [PtCl(L2)](HL2= 2-[(2-(arylamino)phenyl)azo]pyridine)(2) via regioselective ortho-amine fusion at the pendent aryl ring of coordinated L1. Oxidative addition of the electrophiles Y2(Y = Cl, Br, I) to the square-planar
A Convenient Synthesis and Structural Assessment of [Sn(CH<sub>3</sub>)<sub>2</sub>(L<sub>2</sub>)](ClO<sub>4</sub>)<sub>2</sub>
作者:D. Dey、T. S. Basu Baul、E. Rivarola
DOI:10.1246/bcsj.66.1556
日期:1993.5
A general synthesis for a novel class of complexes of the type, [Sn(CH3)2(L2)](ClO4)2 (L = 2-(substituted arylazo) pyridine) is reported. The structure of the complexes have been investigated by 119tin Mössbauer spectroscopy and NMR coupling constant 2J (117/119 Sn–CH). Further, the extent of distortion of tin–methyl groups in octahedral complexes have been calculated from the quadrupole shift (Q.S.) values using Parish’s relationship.
Isolation and characterization of iridium(iii) and iridium(v) complexes of 2-(arylazo)pyridine and studies of amine fusion reactions at the coordinated diazo-ligandElectronic supplementary information (ESI) available: Fig. S1: 1H NMR spectra of 1a and tcc-[RuCl2(HL1a)2] in CDCl3. Inset: Methyl resonances of 1b. Fig. S2: 13C NMR spectra of 1a and tcc-[RuCl2(HL1a)2] in CDCl3. Fig. S3: Cyclic voltammogram of 1a in CH3CN. Fig. S4: Cyclic voltammogram of 2a in CH3CN. See http://www.rsc.org/suppdata/dt/b4/b407209j/
2-(arylazo)pyridine (HL1) in boiling methanol has afforded [Ir(III)Cl2(L1)(HL1)](1) and [Ir(V)Cl4(HL1)]Cl (2). In complex , one of the two ligands [L1]- is orthometallated via coordination of an ortho-carbon of the aryl ring of [L1]- and one of the two azo nitrogens to form a five-membered chelate. X-Ray crystal structures of the two representative complexes, viz. 1a and 2a, have been solved. Notably, the Ir-N