“…By exploring the solid state reaction of coordination compounds at mild temperature, we have recently synthesized Cu(Ag)-Mo(W)-S clusters, including linear, cube-like, incomplete cube, butterfly, planar, prism and cage type clusters [5][6][7][8][9][10][11]. Although the coordination chemistry of Ph 2 PPy is well developed, the corresponding chemistry with heterothiometallic clusters has received less attention [12,13]. Developing superior third-order NLO materials which can utilize the short wavelength ] exhibit good NLO properties.…”