A tetrahedral coordination compound for second-order nonlinear optics: synthesis, crystal structure and SHG of Zn(2-NH2py)2Cl2
摘要:
A coordination compound with a tetrahedral molecular configuration, Zn(NH(2)py)(2)Cl-2(2-NH(2)py=2-aminopyridine), was prepared. It is transparent in the visible region and shows second harmonic generation (SHG) effect 8.0 times as strong as that of KDP. X-ray single crystal structure analysis reveals that all Zn(NH(2)py)(2)Cl-2 molecules are aligned in a fully parallel direction. The advantages and disadvantages of tetrahedral zinc coordination compounds as nonlinear optical (NLO) materials are discussed. The results may represent a novel strategy for designing a new class of transparent NLO materials. (C) 1999 Elsevier Science Ltd. All rights reserved.