34755 ⎘
Compositional aspects of coordination complexes or ligands in catalyst systems; Non-coordinating groups comprising phosphorus; Phosphorus acid or phosphorus acid ester groups being phosphonous acid (-ester) groups (RP(OR')2) or the isomeric phosphinic acid (-ester) groups (R2(R'O)P=O), i.e. R= C, R'= C, H