34754 ⎘
Compositional aspects of coordination complexes or ligands in catalyst systems; Non-coordinating groups comprising phosphorus; Phosphorus acid or phosphorus acid ester groups being phosphorous acid (-ester) groups ((RO)P(OR')2) or the isomeric phosphonic acid (-ester) groups (R(R'O)2P=O), i.e. R= C, R'= C, H