Chemical Physics Letters, Vol.377, No.5-6, 507-511, 2003
Syntheses, structures and second-order nonlinear optical properties of octupolar compounds: 2,4,6-tri-substituted s-triazine
Three compounds with three p-substituted styryls attaching to the central s-triazine have been synthesized and two crystals determined to be in non-centrosymmetric Cmc2(1) and Pmn2(1) space groups, respectively. All of them in solid state are second harmonic generation (SHG) active and two of them show powder SHG intensities one order of magnitude that of urea. (C) 2003 Elsevier B.V. All rights reserved.