Page 1. Indian Journal of Chemistry Vol. 44B, September 2005, pp. ... Ambika Srivastava & RM Singh* Department of Chemistry, Banaras Hindu University, Varanasi-221005 E-mail: rmohan@bhu.ac.in ... R R R Scheme III Page 5. INDIAN J. CHEM., SEC B, SEPTEMBER 2005 1872 ...