00391nam a2200121 a 450000500170000008200130001710000180003011000220004824500710007026000690014130000140021065300450022420251203115513.0  a540bRAm  aRamanathan. R  aDr. Venkatesan. R  aSemi- empirical Investigation of Beta- cynao tetraphenylporphyrins  aPondicherybDept. of Chemistry, Pondicherry UniversitycNov-2004  a44pc32cm  aChemistry: tetraphenylporphyrins, M.Phil