Journal of the Chemical Society, Volume 19

absorption acid Acta activity addition Amer analysis angles appears assigned atoms band benzene bond calculated carbon carbonyl cation Chem Chemical Chemistry chloride co-ordination compared complexes compounds concentration constant containing copper corresponding coupling crystal derivatives described determined discussed distances effect electron energy equation expected experimental experiments factors Figure formation frequency gave give given heated hydrogen increase indicate Inorg intensity interaction involving levels ligand measured metal method mixture mmol modes molecular molecule nitrogen observed obtained occurs orbital oxygen parameters phosphine Phys plane positions possible prepared present Raman range reaction region relative reported requires resonance respectively ring salts separated shift shown shows similar solid solution solvent space group species spectra spectrum splitting stretching structure studies suggested symmetry Table temperature transition unit values vibrational yellow yield