The use of mass spectrometry to obtain thermochemical data from series of organometallic compounds

A general procedure is described for deriving, from mass spectrometric measurements, thermochemical data for ions, radicals, and molecules from series of R_nML_x compounds (R = organic group, M = metal, L = ligand).     

Tautomerism and 1H and 13C NMR assignment of methyl derivatives of 9-hydroxyphenalenone

9-Hydroxyphenalenone is a planar multicyclic beta-keto-enol that demonstrates C2V symmetry on the NMR timescale. Off-axis substitution breaks the molecular symmetry and results in tautomers. 1H and 13C NMR assignments were made for 9-hydroxyphenalenone and three methyl derivatives, and the solution-phase tautomers were determined.