Remarkable switching behavior of bimodally stimuli-responsive photochromic dithienylethenes with redox-active organometallic attachments

Organometallic dithienylethenes with the redox-active M(eta(5)-C(5)H(5))L(2)-type attachments (M = Fe, Ru; L = CO, PR(3)) exhibit bimodally stimuli-responsive, photo- and pseudo-electrochromic behavior with the remarkable switching factors [K(C)(closed)/K(C)(open)] up to 5.4 x 10(3).