title: A cyclic porphyrin trimer as a receptor for fullerenes.
abstract: A cyclic porphyrin trimer has been synthesized which has a high affinity for fullerenes. It forms 1:1 complexes with C(60) and C(70) with association constants of 2 x 10(6) and 2 x 10(8) M(-1), respectively, in toluene. Its affinities for C(86) and La@C(82) are too strong to measure by fluorescence titration. The solvent dependence of the association constants shows that solvation of both the guest and the host influence the binding strength.
authors.affiliation: Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK.
authors.forename: Guzmán
authors.initials: G
authors.lastname: Gil-Ramírez
authors.forename: Steven D
authors.initials: SD
authors.lastname: Karlen
authors.forename: Atsuomi
authors.initials: A
authors.lastname: Shundo
authors.forename: Kyriakos
authors.initials: K
authors.lastname: Porfyrakis
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ito
authors.forename: G Andrew D
authors.initials: GA
authors.lastname: Briggs
authors.forename: John J L
authors.initials: JJ
authors.lastname: Morton
authors.forename: Harry L
authors.initials: HL
authors.lastname: Anderson