Electron-rich Fe(ii) and Fe(iii) organoiron σ-alkynyl complexes bearing a functional aryl group. Vibrational spectroscopic investigations of the substituent effect on the C
C triple bond†
Abstract
Solid state Raman and C–C6H4–X)n+][PF6−]n (n
= 0, 1;
C stretching modes and confirms the occurrence
of Fermi coupling with some substituents in a given oxidation state. Linear correlations between the