Exclusive production of a cycloadduct from selective excitation of the charge-transfer complex between acenaphthylene and tetracyanoethylene in the crystalline state in contrast to failure of reaction in solution

Abstract

Selective excitation of the charge-transfer complex between acenaphthylene and tetracyanoethylene in the crystalline state exclusively affords a 1:1 [2 + 2] cycloadduct, in contrast to the excitation in solution, which gives no product.