Carbon-13 and oxygen-17 NMR and IR spectroscopic study of a series of (carbonyl)(4-substituted pyridine)(meso-tetraphenylporphinato)iron(II) complexes. Correlations between NMR chemical shifts and IR stretching frequencies of the carbonyl ligand and Taft parameters of the pyridine substituent

Multinuclear NMR and infrared spectrosco

Multinuclear NMR and infrared spectroscopic study of a series of cis-Mo(CO)4(py-R)2 (Py-R = 3- or 4-substituted pyridine) complexes: Relationship between chemical shifts and infrared force constants and the Taft electron donor/acceptor parameters of the pyridine substituents

✍ James W. Box; Gary M. Gray 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 762 KB

Poor correlations are normally observed between the chemical shifts of the various NMR-active nuclei in Mo carbonyl complexes of group 15 ligands as the group 15 atom substituents are varied. It is possible to observe good chemical shift correlations and to develop relationships between chemical shi