2,7-di-p-Chlorobenzoylnaphtho[2′3′-4 : 5]thiepin: a conformationally flexible new host molecule showing solvatochromic effects

Abstract

The title host molecule exhibits remarkable conformational flexibility in its crystalline inclusion compounds. The alteration in molecular conformation, between the red dioxane and yellow benzene clathrates, corresponds to a dramatic change in the boat conformation of the seven-membered thiepin ring and reorientation of the side chains.