Page 1. Indian Journal of Chemistry Vol. 38A, April 1999, pp. 311 - 319 ... The field intensity was vaned with the help of a potential divider. Digital multimeter (HIL India) was used as a potential measur- ing device. ... Page 6. 116 INDIAN J CHEM, SEC A, APRIL 1999 ~ E ~ c 8-0 H ('·0 ...