A new screw shaped coordination compound for crystal engineering:Synthesis,crystal structure and nonlinear optical effect of o-chlorophenylthiourea zinc(II)diacetylacetonate

摘要

This paper presents the synthesis and crystal structure of a new screw shaped square-pyramidal coordination compound,Zn(OCP-T)(acac)_2(OCPT is o-chlorophenylthiourea).In the molecule,the "tail" length is almost equal to the width of the "head".The compound crystallizes in a noncentrosymmetric structure.The molecules are arranged in almost parallel direction.The compound showed the powder SHG(second harmonic generation)effect of about 1.5 times as large as that of KDP.