Design and synthesis of a novel Rhodamine B [2]rotaxane†
Abstract
The synthesis and characterization of a novel Rhodamine B [2]rotaxane is described. This species contains dibenzyl-24-crown-8 (DB24C8) as a wheel, which is threaded onto a sec-ammonium-containing axle. The axle has a Rhodamine B unit and a 2,2-diphenylethanamine unit as two bulky terminal stoppers to prevent unthreading.