Substituent effects on thermal decolorization rates of bisbenzospiropyrans

…, VN Nguyen, S Kumar, A McCurdy

Index: Lu, Nina T.; Nguyen, Vi N.; Kumar, Satish; McCurdy, Alison Journal of Organic Chemistry, 2005 , vol. 70, # 22 p. 9067 - 9070

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Citation Number: 13

Abstract

A novel application of photochromic molecules is to mimic physiological oscillatory calcium signals by reversibly binding and releasing calcium ions in response to light. Substituent changes on the largely unexplored photochromic bisbenzospiropyran scaffold led to significant changes in thermal fading rates in several organic solvents. Excellent correlations have been found between fading rates and empirical Hammett constants as well as ...