Unexpected High Second-Order Nonlinear Optical Activity of Metal Complexes with Three-Branched Hexadentate 2,2′-Bipyridine Ligands
作者:Marie C. Wolff、Nick van Steerteghem、Koen Clays、Jürgen Heck
DOI:10.1002/chem.201801189
日期:2018.10.9
Two hexadentate bipyridine ligands and their RuII and NiII complexes were prepared. The helical alignment of the three electron‐donor–π‐bridge–electron‐acceptor (d‐π‐A) single‐strands with bundle architecture in cooperation with the metal center can strongly enhance the nonlinearoptical (NLO) properties. The complexation of the novel cage‐type hexadentate ligands with a paramagnetic NiII‐core almost