He Trigonal planar prIsm Octahedral 2 M No of predicted isomers (numbers in No. of parentheses indicate position of the actual Formula B ligands) soeTs MAsB One One One MA4B2 Three Three wo Two (1,2) (1,2) (1,2) (1,3) MAB Thre ee Three Two Two (1,2,3) (1,2,3 (1,2,3) (1,2,4) (1,24) (1,2,6) (13,5) (1,2,6) Werner提出的几何构型和异构体数目的关系Werner 提出的几何构型和异构体数目的关系