1. Sai-Rong Fan and Long-Guan Zhu, J. Mol. Struct., 2007, vol. 827, nos. 1–3, p. 188.
2. Koksharova, T.V., Kurando, S.V., and Stoyanova, I.V., Russ. J. Gen. Chem., 2012, vol. 82, no. 9, p. 1481.
3. Singh, B., Singh, R., Chaudhary, R.V., and Thakur, K.P., Indian J. Chem., 1973, vol. 11, no. 2, p. 174.
4. Gordon, A.J. and Ford, R.A., The Chemist’s Companion, New York: Wiley, 1972.
5. Nothenberg, M.S., de Souza, A.R., and Matos, J.R., Polyhedron, 2000, vol. 19, no. 11, p. 1305.