... 4. Additions to Naphthalene [1] 1251 Engelbert Ciganek* and Mark A. Wuonola Chemical and Physical Sciences, The DuPont Merck Pharmaceutical Co. ... Heterocyclic Chem., 31, 1251 (1994 ... Refined with anisotro ic thermal parameters: B = 4/3 Z 2'. ~-a~a~, P eq |_] 1 J where ai ...