A drastic substituent effect on the emission properties of quinone diimine models and valuable insight into the excited states of emeraldine

作者：Abdelhameed Mohammed; Langlois Adam; Fortin Daniel; Karsenti Paul Ludovic; Harvey Pierre D^*

来源：Chemical communications, 2014, 50(76): 11214-11217.

DOI：10.1039/c4cc05178e

The (alpha-NR,alpha%26apos;-NR,N,N%26apos;-(C6H4C CSiMe3)(4))[Q] models ([Q] = -N = C6H4 = N-) exhibit upper excited state emissions S-n,T-n -%26gt; S-0 (n %26gt; 1, R = Boc), similar to emeraldine, vs. a fluorescence S-1 -%26gt; S-0 (R = H), driven by a large change in dihedral angles made by the NR-C6H4 and [Q] planes and intramolecular H-bonds.

• 出版日期2014