A new class of solvatochromic material: Geometrically unsaturated Ni (II) complexes
作者:P. Mosae Selvakumar、S. Nadella、R. Fröhlich、M. Albrecht、P.S. Subramanian
DOI:10.1016/j.dyepig.2012.05.008
日期:2012.12
of Ni(II) double stranded binuclear complexes were synthesized upon treating the Ni(II) salts with series of diamino-bis-pyridine ligands, L1H2–L4H2 in 1:1 stiochiometric ratio. The Ni(II) centers existing in octahedral geometry, four of the coordination sites are occupied by two ligand strands, while the remaining two sites are occupied by solvent molecules in each metal centers. The Ni(II) complexes
通过用一系列的二氨基双吡啶配体L 1 H 2 –L 4 H 2以化学计量比1:1处理Ni(II)盐,合成了一系列Ni(II)双链双核复合物。Ni(II)中心存在八面体几何形状,其中四个配位位点被两条配体链占据,而其余两个位点被每个金属中心中的溶剂分子占据。Ni(II)络合物1a - 4a和1b - 4b本质上是双核的,带有ClO 4和PF 6抗衡离子。配合物1b的晶体结构确定溶剂的配位。溶剂变色现象虽然是已经建立的现象,但在手稿化学领域中,本论文首次报道了这种观察。因此,通过适当地调节dd跃迁,采用合适的溶剂,手稿可引发几何上不饱和螺旋的溶剂溶变色性质。