New molecular complexes of fullerenes C-60 and C-70 with tetraphenylporphyrins M(tpp) , in which M = H-2, Mn, Co, Cu, Zn, and FeCl

Konarev, D.V.; Neretin, I.S.; Slovokhotov, Y.L.; Yudanova, E.I.; Drichko, N.V.; Shul'ga, Y.M.; Tarasov, B.P.; Gumanov, L.L.; Batsanov, A.S.; Howard, J.A.K.; Lyubovskaya, R.N.

Abstract

New molecular complexes of fullerenes C-60 and C-70 with tetraphenyl-porphyrins [M(tpp)] in which M = H-2, Mn-II, Co-II, Cu-II, Zn-II and (FeCl)-Cl-III, have been synthesised. Crystal structures of two C-60 complexes with H2TPP, which differ only in the number of benzene solvated molecules, and C-60 and C-70 complexes with [Cu(tpp)] have been studied. The fullerene molecules form a honeycomb motif in H2TPP . 2C(60). 3C(6)H(6), puckcred graphite-like layers in H2TPP . 2C(60). 4C(6)H(6), zigzag chains in [Cu(tpp)].C-70.1.5C(7)H(8).0.5C(2)HCl(3) and columns in [Cu(tpp)](2).C-60. H2TPP has van der Waals contacts with C-60 through nitrogen atoms and phenyl groups. Copper atoms of the [Cu(tpp)l molecules are weakly coordinated with C- 70, but form no shortened contacts with C-60. 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 C- 70 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.

Citation

Konarev, D., Neretin, I., Slovokhotov, Y., Yudanova, E., Drichko, N., Shul'ga, Y., …Lyubovskaya, R. (2001). New molecular complexes of fullerenes C-60 and C-70 with tetraphenylporphyrins M(tpp) , in which M = H-2, Mn, Co, Cu, Zn, and FeCl. Chemistry - A European Journal, 7(12), 2605-2616. https://doi.org/10.1002/1521-3765%2820010618%297%3A12%3C2605%3A%3Aaid-chem26050%3E3.0.co%3B2-p

• Journal Article Type: Article
• Publication Date: Jun 18, 2001
• Deposit Date: May 11, 2007
• Journal: Chemistry - A European Journal
• Print ISSN: 0947-6539
• Electronic ISSN: 1521-3765
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 12
• Pages: 2605-2616
• DOI: https://doi.org/10.1002/1521-3765%2820010618%297%3A12%3C2605%3A%3Aaid-chem26050%3E3.0.co%3B2-p
• Keywords: Copper, Fullerenes, Porhyrinoids, Structure elucidation.
• Public URL: https://durham-repository.worktribe.com/output/1555425