Near-infrared-absorbing squaraine dyes containing 2,3-dihydroperimidine terminal groups
作者:Kasali A. Bello、S. Nigel Corns、John Griffiths
DOI:10.1039/c39930000452
日期:——
Condensation of 2,3-dihydroperimidines with squaric acid under conditions of azeotropic removal of water affords a new class of diarylsquaraine dyes with intense absorption bands at ca. 800nm.