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本文用(NH4)2WS4,Ag犤S2P(OCH2Ph)2犦和PPh3为原料合成了簇合物犤WS4Ag3(PPh3)3狖S2P(OCH2Ph)2狚犦,并得到了晶体。晶体属正交晶系,空间群为P212121,晶胞参数a=1.32370(4)nm,b=1.34427(4)nm,c=3.83246(11)nm。X-射线单晶结构测定结果表明它具有巢状分子结构,配体(PhCH2O)2PS2-(简称dtp)的两个S原子中的一个硫原子仅与一个金属原子配位,另一个硫原子则同时与两个金属原子配位。簇合物的非线性光学性质用脉宽8ns激光在532nm波长进行了研究。该化合物表现为一定的光学吸收和强的自聚焦效应,其三阶非线性吸收系数α2=1.50×10-10m·W-1,折射系数n2=2.45×10-11esu。
In this paper, the cluster compound WS4Ag3 (PPh3) 3 狖 S2P (OCH2Ph) 2 狚 合 was synthesized from (NH4) 2WS4, Ag 犤 S2P (OCH2Ph) 2 犦 and PPh3 and the crystal was obtained. The crystal belongs to the orthorhombic system with space group P212121, unit cell parameters a = 1.32370 (4) nm, b = 1.34427 (4) nm and c = 3.83246 (11) nm. X-ray single crystal structure measurement results show that it has a nested molecular structure, ligand (PhCH2O) 2PS2- (dtp) of the two S atoms in a sulfur atom with only one metal atom coordination, and the other sulfur atoms At the same time with two metal atoms coordination. The nonlinear optical properties of the clusters were investigated using a pulse width of 8 ns laser at 532 nm. The compound exhibited certain optical absorption and strong self-focusing effect. The third-order nonlinear absorption coefficient α2 = 1.50 × 10-10m · W-1 and the refractive index n2 = 2.45 × 10-11esu.