title: New molecular complexes of fullerenes C60 and C70 with tetraphenylporphyrins [M(tpp)], in which M=H2, Mn, Co, Cu, Zn, and FeCl.
abstract: New molecular complexes of fullerenes C60 and C70 with tetraphenylporphyrins [M(tpp)] in which M-H2, MnII, CoII, CuII, ZnII and Fe(III)Cl, have been synthesised. Crystal structures of two C60 complexes with H2TPP, which differ only in the number of benzene solvated molecules, and C60 and C70 complexes with [Cu(tpp)] have been studied. The fullerene molecules form a honeycomb motif in H2TPP.2C60. 3C6H6, puckered graphite-like layers in H2TPP.2C60.4C6H6, zigzag chains in [Cu(tpp)].C70.1.5C7H8.0.5C2HCl3 and columns in [Cu(tpp)]2.C60. H2TPP has van der Waals contacts with C60 through nitrogen atoms and phenyl groups. Copper atoms of the [Cu(tpp)] molecules are weakly coordinated with C70, but form no shortened contacts with C60. The formation of molecular complexes with fullerenes affects the ESR spectra of [M(tpp)] (M = Mn, Co and Cu). [Mn(tpp)] in the complex with C70 lowers its spin state from S = 5/2 to S = 1/2, whereas [Co(tpp)] and [Cu(tpp)] change the constants of hyperfine interaction. ESR, IR, UV-visible and X-ray photoelectron spectroscopic data show no noticeable charge transfer from the porphyrinate to the fullerene molecules.
authors.affiliation: Institute of Problems of Chemical Physics, Russian Academy of Sciences, Moscow Region.
authors.forename: D V
authors.initials: DV
authors.lastname: Konarev
authors.forename: I S
authors.initials: IS
authors.lastname: Neretin
authors.forename: Y L
authors.initials: YL
authors.lastname: Slovokhotov
authors.forename: E I
authors.initials: EI
authors.lastname: Yudanova
authors.forename: N V
authors.initials: NV
authors.lastname: Drichko
authors.forename: Y M
authors.initials: YM
authors.lastname: Shul'ga
authors.forename: B P
authors.initials: BP
authors.lastname: Tarasov
authors.forename: L L
authors.initials: LL
authors.lastname: Gumanov
authors.forename: A S
authors.initials: AS
authors.lastname: Batsanov
authors.forename: J A
authors.initials: JA
authors.lastname: Howard
authors.forename: R N
authors.initials: RN
authors.lastname: Lyubovskaya