Formation of Quinhydrone-Type Complexes Composed of Quinone Dimers and Trimers Bearing t-Butyl and n-Dodecyl Substituents

Abstract

Complexation behavior of 5,5′-bis(2-methyl-2-propyl)-2,2′-bi(1,4-benzoquinone) ( 1a ), 5,5″-bis(2-methyl-2-propyl)-2,2′;5′,2″-ter(1,4-benzoquinone) ( 2 ), and 5,5′-didodecyl-2,2′-bi(1,4-benzoquinone) ( 1b ) with hydroquinone was investigated. 1a and 2 yielded no complex due to the bulkiness of t-butyl substituents, while 1b afforded quinhydrone-type complex, which was revealed to be amorphous by means of X-ray Powder Diffraction (XPD) study.