41. the value of p(b/b, )of a ligand shows the extent of (a) in the m-l bond of the complex and also the extent of delocalization of ligand clectrons. lits valu

41. The value of p(B/B, )of a ligand shows the extent of (A) in the M-L bond of the complex and also the extent of delocalization of ligand clectrons. lIts value is (B) for the electrons in (C) and (D) orbitals. Since the Goverlap of (D) 1s usually larger than the IT-orbital overlap of (C), the cloud expansion 1S larger in the tormer case. Here (A), (8), (C) and (D) respectively are: (a) iconicity, higher, tag, (b) iconicity, lower eg 2 (c) Covalence, ditferent, t2g« eg (d) covalence, higher, eg» 2g