00307nam a2200109Ia 4500008004100000040001100041100001900052245004500071260005400116300001700170300001000187251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aMarshall Gates 0aJournal of the American Chemical Society  cOctober 9, 1968bAmerican Chemical SocietyaU.S.A  aP. 5649-6576  bV. 90