The inductive effect and ligand–ligand interactions in mutual influence of ligands

✍ Scribed by M.M. Gofman; V.I. Nefedov

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 922 KB
• Volume: 31
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)94993-4

✦ Synopsis

The inductive effect in series A f;S"+ I)-and AF, -

Cl"-(A = Si, P, S, Se) has been calculated by an approximate non-empiric method. The effect is directed primarily along the cis-coordinate; with isoelectronic compounds of one period elements it is growing along the period from the left to the right. The role of ligand-ligand interactions in the mutual influence of ligands is examined. The inductive effect and the non-valent ligandligand interactions affect the relative strength of A-X,-i, and A--X&, bonds in octahedral compounds of transition elements AX5L in the same manner, but in compounds of non-transition elements they have opposite signs. The inductive effect accounts for the weakening or strengthening of A-X bonds in AX,L with respect to AX6 depending on the nature of the ligand L. The relative strength of A-X-and A-Xcis bonds in non-transition element compounds AX5L depends on the balance between the inductive effect and the nonvalent interactions.