treatment of [MBr2(NCMe)(CO)2(PR3)2](M = Mo, PR3= PMePh2; M = W, PR3= PMe2Ph or PMePh2) or [MBr2(CO)2(PPh3)2](M = Mo or W) with a suspension of sodium oxalate in acetone yielded the complexes [MBr(CO)2(PR3)2}2(µ-C2O4)]. The tungsten species [WBr(CO)2(PMe2Ph)2}2(µ-C2O4)] crystallises in two forms both of which contain a planar oxalate bridge linking two seven-co-ordinate metal centres, but have different
三氟乙酸钠与[MBr 2(NCMe)(CO)2(PR 3)2 ](M = Mo或W,PR 3 = PMe 2 Ph或PMePh 2)或[MBr 2(CO)的1:1反应2(PPh 3)2 ](M = Mo或W)形成含有双齿
羧酸盐
配体的单核络合物[MBr(O 2 CCF 3)(CO)2(PR 3)2 ]。添加第二当量的
羧酸盐生成的[M(O 2 CCF 3)2(CO)2(PR 3)2 ],其中氧供体
配体采用一种二齿和一种单齿键合模式。[MoBr(O 2 CCF 3)(CO)2(PPh 3)2 ]的单晶X射线衍射研究证实了4:3的多表面形式。[MBr 2(NCMe)(CO)2(PR 3)2 ](M = Mo,PR 3 = PMePh 2 ; M = W,PR 3 = PMe 2 Ph或PMePh 2)或[MBr 2(CO )2(PPh 3)2](M = Mo或W)与悬浮在
丙酮草酸钠,得到络合物[MBR(CO)2(PR