Vibrational spectra of cyclopropenyl cations (C3H3+, C3D3+, C3H2D+, and C3D2H+) and force constants for this ion system
作者:Norman C. Craig、Julianto. Pranata、Sara Jamie. Reinganum、Julian R. Sprague、Philip S. Stevens
DOI:10.1021/ja00275a025
日期:1986.7
12 constants has been fitted to the set of 31 observed frequencies. Forceconstants for CC stretching (7.890 mdyn A/sup -1/, CH stretching (5.284 mdyn A/sup -1/), an CH in-plane bending (0.599 mdyn A rad/sup -2/) are each larger than the corresponding forceconstants for benzene. The large forceconstant for CC stretching implies that the cyclopropenyl cation has exceptionally strong ..pi..-bonding