摘要
ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆＰｒｏｐｉｏｎａｔｅ－ｂｒｉｄｇｅｄＭｉｘｅｄ－ｍｅｔａｌＣｌｕｓｔｅｒＣｏｍｐｏｕｎｄ：〔ＭｏＷ_２Ｏ_２（Ｏ_２ＣＣ_２Ｈ_５）_６（Ｈ_２Ｏ）_３〕ＺｎＢｒ_４·４Ｈ_２Ｏ￥ＬｉｕＨｕａｎｇ；ＸｕＬｉ；Ｈｕａ...
The heterotrinuclear cluster compound [MoW_2O_2 (O_2CC_2H_5 )_6-( H_2O)_3] ZnBr4·4H_2O was prepared by the redox reaction of Mo (CO)_6 with Na_2W_O4 in propionic anhydride. The crystal is monoclinic of space group P2/c with a =16. 334(4) , b= 9. 657(5) , c=19. 889(9) ,β= 139. 79 (5)°,V= 2026 (2) ￣3 , Z=2 , D_c=2. 30 g/cm￣3 μ(MoKa) =106. 6 cm￣(-1) ,F(000)=1176 ,final R=0. 065 and R_ω=0. 072 for 1964 reflections with I≥3σ(I). In the structure of cation [MoW_2O_2 (O_2CC_2H_5 )_6 (H_2O)_3]￣(2+) molybdenum and tungsten atoms are statistically disordered. Three metal atoms form an equilateral triangle with the distance of M-M being 2. 735.
关键词
合成
晶体结构
原子簇合物
钼
钨
丙酸
锌
synthesis, crystal structure, mixed-metal cluster, Mo-W propionate compound
