The design, synthesis and optical holographic recording properties of bis-D
NO are reported. Bis-DNO is composed of two identical azobenzene oligoornit
hine segments (DNO) connected via a dipeptide linker. The two segments were
assembled in a parallel fashion at the two amino groups of the dipeptide l
inker by Merrifield synthesis. Surprisingly, the response time of films of
bis-DNOs was found to be much faster than that of their linear counterparts
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