| 11843590 |
Jeppesen JO, Becher J, Stoddart JF: Poised on the brink between a bistable complex and a compound. Org Lett. 2002 Feb 21;4(4):557-60.
[reaction: see text] An enmeshed supramolecular complex, based on a semi-dumbbell-shaped component containing an asymmetrically substituted tetrathiafulvalene site and a 1,5-dioxynaphthalene site for encirclement by a cyclobis (paraquat-p-phenylene) ring component and with a "speed bump" in the form of an thiomethyl group situated between the two recognition sites, has been self-assembled. This complex is a mixture in acetone solution of two slowly interconverting [2] pseudorotaxanes, one of which is on the verge of being a [2] rotaxane at room temperature. |
1(0,0,0,1) |