Geometry-dependent complexation effects in carbon-13 nuclear magnetic resonance spectra of tricarbonyl(3–8-η-[2.2]paracyclophane)chromium and related complexes

Abstract

A comparison of the aryl ¹³C chemical shifts and one-bond aryl ¹³C–¹H coupling constants for tricarbonyl(3–8-η-[2.2] paracyclophane)chromium and some related complexes with their molecular geometry indicates that the magnitudes of the complexation effects on the chemical shifts and coupling constants correlate with the interatomic distances between the Cr and the ligand carbons.