二核钼化合物Mo_2S_4(S_2P(iprO)_2)_2的合成、反应和结构表征

Synthesis and Structural Characterization of a Dinuclear Molybdenum Compound: Mo_2S_4(S_2P(iprO)_2)_2

二核钼化合物Mo2S4（S2P（iprO）2）2（Ⅰ）（ipr=（CH3）2CH）由（NH4）2MoS4和HS2P（iprO）2反应生成，含有1个[Mo2S4]2+簇芯。Mo-Mo键长为2．8201（8）A。除了簇芯的配位外，每个钼原子上都有1个双齿的二异丙基二硫代磷酸酯配体形成钼的四方单锥配位环境。晶体学结构数据：单科晶系，空间群P21／c，晶胞参数a=12．869（2），b=13．90（3），c=16.262（5）A，β＝101.92（3）°，V＝2856（2）A3，Z=4，R=0．044，Rw=0．057。还报道该化合物作为润滑油添加剂的性能测试结果。

A new dinuclear compound Mo2S4 (S2P (iprO)2)2 (ipr = (CH3)2CH) was synthesized fromthe reaction of (NH4)2 MoS4 with excess of HS2P(ipro)2 and characterized by IR., Raman, UVVis,,95Mo NMR and X-ray single crystal structure analysis. The compound contains a typical[Mo2S4]4+ core. Apart from the bonds in the core, each molybdenum is bonded to one bidentatediibopropyldithiophosphate ligand resulting a distorted single Square pyramid coordination geometry. The Mo-Mo bond length is 2. 8201 (8) A. Crystallographic data for its crystal are: monoclinic, space group P21/c, a= 12. 869(2), b= 13. 949(3), c= 16. 262 (5) A, β= 101. 92(3)°,V= 2856(2) A3, Z=4, final R = 0. 044 for 3436 reflections with I＞4a(I). The property ofthe compound using as lubricating oil additive is also reported in this paper.