Preparation and electrochemical behaviour of dinuclear platinum complexes containing NCN ligands (NCN=[C6H3(Me2NCH2)2-2,6]−). The crystal structure of [C6H3(Me2NCH2)2-1,3-(CC)-5]2
作者:Stephan Back、Martin Lutz、Anthony L Spek、Heinrich Lang、Gerard van Koten
DOI:10.1016/s0022-328x(00)00800-7
日期:2001.2
σ′-ethynylide complex Pt}CCPt} (Pt}=[Pt(C6H3CH2NMe2}2-2,6)]+) with [CuCl]n yields Pt}Cl and [Cu2C2]n, while with [Cu(NCMe)4][BF4] a Cu(I) bridged complex was formed: [(η2-Pt}CCPt})2Cu][BF4]. The results of cyclic voltammetry experiments reveal that both connection modes of the two platinum centres lead to electrochemically independent Pt–NCN units. The X-ray crystalstructure analysis of the neutral
Synthesis of the diphenylacetylene-based, tetra-amine ligand 1,2-bis(3,5-bis[(dimethylamino)methyl]phenyl)acetylene by palladium-catalysed cross-coupling: isolation and crystal structure of the catalyst trans-(3,5-bis[(dimethylamino)methyl]phenyl)bis(triphenylphosphine)palladium(II) iodide
作者:Marieke P.R. Spee、Bart Ader、Pablo Steenwinkel、Huub Kooijman、Anthony L. Spek、Gerard van Koten
DOI:10.1016/s0022-328x(99)00665-8
日期:2000.3
Reaction of 3,5-bis[(dimethylamino)methyl]phenyl iodide with 3,5-bis[(dimethylamino)methyl]phenylacetylene in diethylamine in the presence of bis(triphenylphosphine)palladium(II) dichloride (3.6 mol%) and copper(I) iodide (3.0 mol%) gave 1,2-(bis(3,5-bis[(dimethylamino)methyl]phenyl)acetylene (1) in 82% yield. The palladium catalyst was recovered in 93% yield as trans-(3,5-bis[(dimethylamino)methy