An Unusual Relationship between 49Ti Chemical Shift and Ti(2p3/2) Binding Energy. The Use of 49Ti NMR in Evaluating the Electronic Effect of Methyl Substitution on the Cyclopentadienyl Ligand

Paul G. Gassman, William H. Campbell, David W Macomber

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

The 49Ti NMR chemical shifts of a series of titanocene derivatives have been shown to have an inverse relationship to the Ti(2P3/2) binding energies of these same compounds as measured by X-ray photoelectron spectroscopy (ESCA). Replacement of one cyclopentadienyl (Cp) group of the titanocene difluorides, dichlorides, and dibromides by a pentamethylcyclopentadienyl (Cp;) moiety resulted in an average downfield shift in the 49Ti NMR absorption of 148 ppm. Substitution of both Cp groups by Cp groups resulted in an average downfield shift of 312 ppm.

Original languageEnglish (US)
Pages (from-to)385-387
Number of pages3
JournalOrganometallics
Volume3
Issue number3
DOIs
StatePublished - Jan 1984

Fingerprint Dive into the research topics of 'An Unusual Relationship between <sup>49</sup>Ti Chemical Shift and Ti(2p<sub>3/2</sub>) Binding Energy. The Use of <sup>49</sup>Ti NMR in Evaluating the Electronic Effect of Methyl Substitution on the Cyclopentadienyl Ligand'. Together they form a unique fingerprint.

Cite this