Creation of Molecularly Integrated Multi-responsive Photochromic Systems

In this chapter, we describe: (1) the use of photochromic acid-generating spiropyran in (i) controlling the absorption wavelength of bisphenanthrolinodiarylethene and (ii) the on/off switching of photochromism in a diarylethene; (2) highly enantioselective light-induced chirality transfer from human serum albumin to diarylethenes and (3) the short-step assembly of (i) thermally irreversible stealth photochromic arylbutadienes and (ii) thermally reversible photochromic teraryls by way of “click” Huisgen reactions catalyzed by Ru(I) complexes.