title: Cycloparaphenylene-based ionic donor-acceptor supramolecule: isolation and characterization of Li⁺@C60⊂[10]CPP.
abstract: The first cycloparaphenylene (CPP)-based ionic donor-acceptor supramolecule Li(+)@C60⊂[10]CPP⋅X(-) has been synthesized. X-ray crystallography not only confirmed the molecular structure of Li(+)@C60⊂[10]CPP⋅X(-) but also uncovered the formation of a unique ionic crystal. The strong charge-transfer interaction between [10]CPP and Li(+)@C60, which was confirmed by electrochemical measurement and spectroscopic analyses, caused significant delocalization of the positive charge across the entire complex.
authors.affiliation: JST, ERATO, Itami Molecular Nanocarbon Project, Chikusa, Nagoya, 464-8602 (Japan); Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602 (Japan).
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ueno
authors.forename: Taishi
authors.initials: T
authors.lastname: Nishihara
authors.forename: Yasutomo
authors.initials: Y
authors.lastname: Segawa
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Itami
mesh_terms: D018360:Crystallography, X-Ray; D003516:Cycloparaffins / Q000737:chemistry*; D055664:Electrochemical Techniques; D037741:Fullerenes / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D008094:Lithium / Q000737:chemistry*; D008968:Molecular Conformation; D013056:Spectrophotometry, Ultraviolet
chemical_list: D003516:Cycloparaffins; D037741:Fullerenes; D007477:Ions; D008094:Lithium; C069837:fullerene C60
keywords: charge transfer; cycloparaphenylenes; ionic supramolecule; lithium ion encapsulated fullerene