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:——
Ruthenium terpyridine 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
[Ru II(trpy)(L)(X)] [ClO 4 ] n 1–15 [trpy = 2,2'∶6,2''-叔吡啶;L = NC 5 H 4 N NC 6 H 4(R),R = H,m -Me,m -Cl,p -Me或p -Cl;X =氯- ,Ñ = 1(1-5);高氧2,Ñ = 2(6-10)或OH - ,Ñ = 1(11-15)]已被合成。确定了1和6的单晶结构。配合物4以两种可能的异构形式发展,而所有其他配合物优先以一种异构形式稳定。该复合物在500 nm附近表现出很强的MLCT谱带,并且配体紫外线区域中的基于过渡的过渡。1–5在600 nm附近的77 K处显示中等强度的发射。这氯代(1–5)和羟基(11–15)配合物显示钌(III)–钌(II)对以及3至4个连续的单电子配体基于减少量。水复合物(6–10)表现出可逆的2e − / 2H +单步氧化作用在[Ru II(trpy)(L)(H