Substituted pyridazines as ligands in homoleptic (fac and mer) and heteroleptic Ru(ii) complexes
作者:Gareth Cooke、Gearóid M. Ó Máille、Roberto Quesada、Longsheng Wang、Sunil Varughese、Sylvia M. Draper
DOI:10.1039/c1dt10340g
日期:——
solid-state structures were investigated using single crystal X-ray crystallography. The pyridazines were used as bidentate ligands in M(II)(bipy)2} and tris(homoleptic) complexes (M = Fe, Ru). The optical and electrochemical properties of these complexes reflect the electron accepting character of the new ligands. The facial and meridional isomers of the tris complexes could be separated by column chromatography
本文报道了通过逆电子需求制备一系列苯基,吡啶基和吡嗪基取代的哒嗪[2 + 4] 3,6-二(2-吡啶基)-1,2,4,5-之间的Diels-Alder反应四嗪(bptz)和3,6-二(2-吡嗪基)-1,2,4,5-四嗪(bpztz)和合适的亲二烯体,包括。所得的多芳族化合物在芳族取代基的数量以及N-杂原子的数量和位置方面系统地变化。对于这些化合物中的四种,使用单晶X射线晶体学研究了分子变化对固态结构的影响。哒嗪用作M(II)(bipy)2 }和tris中的双齿配体(杀菌剂)配合物(M = Fe,Ru)。这些配合物的光学和电化学性质反映了新配体的电子接受特性。tris配合物的面部和子午线异构体可通过柱色谱法分离(在硅石),因此可以对其吸收和发射特性进行光谱比较。讨论了几种金属配合物的固态结构,包括3,6-双(2-吡啶基)-4,5-双(4-吡啶基)tris Ru(II)配合物的表面异构体的固