@article{oai:nitech.repo.nii.ac.jp:00004319, author = {Araki, Shuki and Mizuya, Jiro and Aoyama, Naomitsu and Butsugan, Yasuo}, issue = {16}, journal = {Journal of the Chemical Society. Perkin transactions 1}, month = {Jan}, note = {Tripolar mesoionic compounds have been synthesized by the reaction of (1,3-diphenyltetrazol-5-ylio)cyclopentadienide (or -indenide) with the dicationic ether salts derived from mesoionic olates and trifluoromethanesulfonic anhydride. The structures of the newly prepared mesoionic systems are discussed on the basis of spectroscopic analysis; it is shown that the tripolar [tetrazolium-cyclopentadienide (or indenide)-tetrazolium] canonical structure contributes significantly to the ground state of these compounds., application/pdf}, pages = {1989--1991}, title = {Tripolar Mesoionic Compounds}, volume = {1995}, year = {1995} }