Abstract: The fluorescence properties of members of the series (CH&N [CH2],, N (CH& are reported for n= 1-13, 16, 18, and 20 in dilute ( M) n-hexane solution at 23 “C. Based on comparisons with monoamines, emission from diamines n= I and 2 is assigned as excimer/monomer fluorescence. For n= 3 and 4, emission from both monomer and excimer is distinctly observed. While the emission spectrum of n= 5 shows no evidence of an ...
