Lanthanum(III) tris(O-tolyl/benzyldithiocarbonates), [La(ROCS2)] (R = o-, m-, p-CH3C6H4 and C6H5CH2), were isolated as yellow solid by the reaction of LaCl3 ·7H2O with sodium salt of tolyl/benzyldithiocarbonates, ROCS2Na (R = o-, m-, p-CH3C6H4 and C6H5CH2), in methanol under anhydrous conditions in 1 : 3 molar ratio. These complexes have formed adducts with nitrogen and phosphorus donor molecules by straightforward reaction of these complexes with donor ligands, which have the composition of the type [La(ROCS2)3 ·nL] (where n = 2, L = NC5H5 or P(C6H5)3 and n = 1, L = N2C12H8 or N2C10H8). Elemental analyses, mass, IR, TGA, and heteronuclear NMR ((1)H, (13)C and (31)P) spectroscopic studies indicated bidentate mode of bonding by dithiocarbonate ligands leading to hexacoordinated and octacoordinated geometry around the lanthanum atom. Antimicrobial (antifungal and antibacterial) activity of the free ligands and some of the complexes have also been investigated which exhibited significantly more activity for the complexes than the free ligands.

中文翻译：

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镧（III）甲苯基/苄基二硫代碳酸酯的合成、表征、热和抗菌研究。

通过 LaCl3·7H2O 与钠盐的反应，分离出黄色固体三（O-甲苯基/苄基二硫代碳酸酯）、[La(ROCS2)]（R = o-、m-、p-CH3C6H4 和 C6H5CH2）的镧 (III)甲苯基/苄基二硫代碳酸酯 ROCS2Na（R = o-、m-、p-CH 3 C 6 H 4 和 C 6 H 5 CH 2 ），在无水条件下的甲醇中，摩尔比为 1:3。这些配合物通过这些配合物与供体配体的直接反应与氮和磷供体分子形成加合物，这些配合物具有 [La(ROCS2)3 ·nL] 类型的组成（其中 n = 2，L = NC5H5 或 P(C6H5 )3 且 n = 1，L = N2C12H8 或 N2C10H8)。元素分析、质量、IR、TGA 和异核 NMR（(1)H、(13)C 和 (31)P）光谱研究表明二硫代碳酸酯配体的双齿键合模式导致镧原子周围的六配位和八配位几何形状。