1. C. J. Pouchert, in “The Aldrich Library of NMR Spectra,” Vol. 2, 2nd Ed., ed. by Aldrich Chemical Co., Milwaukee, Wisconsin, 1983, p. 920.
2. C. J. Pouchert, in “The Aldrich Library of Infrared Spectra,” 3rd Ed., ed. by Aldrich Chemical Co., Milwaukee, Wisconsin, 1981, p. 1494.