A novel metal-organic coordination complex crystal: tri-allylthiourea zinc chloride (ATZC)

A new metal-organic coordination nonlinear optical crystal, tri-allylthiourea zinc chloride (ZnCl2(AT)3, where AT is CH2=CHCH2NHCSNH2, abbreviated as ATZC), is reported. It was synthesized in water and recrystallized in ethanol. For the crystal structure, optical and thermal characterization were determined by elemental analyses, X-ray diffraction, infrared spectroscopy, differential scanning calorimeter, thermogravimetric analysis, and powder SHG efficiency meansurement. It belongs to the trigonal system, space group R3, with a = 11.0498(4) A, c = 16.0416(11) A, z = 3 and V = 1696.24(15) A3. It exhibits powder SHG efficiency the same order as Urea crystal. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)