110486-40-3Relevant academic research and scientific papers
Tetraphenylcyclopentadiene and (4-tert-Butylphenyl)tetraphenylcyclopentadiene: Synthesis and Characterization of their Alkali-Metal Salts and Metallocenes of Germanium, Tin, and Lead
Schumann, Herbert,Janiak, Christoph,Zuckerman, Jerold J.
, p. 207 - 218 (2007/10/02)
Tetraphenylcyclopentadiene (1) and (4-tert-butylphenyl)tetraphenylcyclopentadiene (11), their alkali-metal salts (2-4 and 12, 13, respectively)and their air-stable metallocenes of germanium (5, 15), tin (6, 16) and lead (7, 17) were synthesized and characterized by IR, Raman, 1H-NMR, 13C-NMR, and mass spectta as well as by X-ray powder diagrams.Comparative 13C-NMR studies including tetraphenylcyclopentadienyl bromide (8), (4-tert-butylphenyl)tetraphenylcyclopentadienol (9), and (4-tert-butylphenyl)tetraphenylcyclopentadienyl bromide (10) prove a delocalisation of the negative charge from the C5 ring into the nonparallel phenyl ligands.
