Electronic and infrared spectra of C+60 and C−60 in neon and argon matrices

Fulara, Jan; Jakobi, Michael; Maier, John P.

doi:10.1016/0009-2614(93)85190-y

Cited by 156 publications

(155 citation statements)

References 38 publications

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“…Vibronic assignments have been made under the assumption of D 5d symmetry. 196 The photoemission spectrum of C 60 -has been obtained and compared to detailed calculations of the vibronic structure. 228 The similarity to the absorption spectrum is striking.…”

Section: B C 60 N-fulleridesmentioning

confidence: 99%

Discrete Fulleride Anions and Fullerenium Cations

2000

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His research interests include reactive cation and superacid chemistry with inert carborane counterions, ionic liquids, bioinorganic chemistry, spin-coupling phenomena, fullerene chemistry, and new carbon-or porphyrin-based materials. He is a Sloan Fellow, a Dreyfus Teacher−Scholar Awardee, and a Guggenheim Fellow. Robert Bolskar received his B.S. degree in Chemistry from Carroll College in Waukesha, WI, in 1992. He earned his Ph.D. degree at the University of Southern California in Los Angeles under the direction of Christopher Reed in 1997, investigating the synthetic redox chemistry of fullerene anions and cations. In 1998 he moved to the University of California, Riverside, as Managing Research Associate. He is currently Senior Chemist at TDA Research in Wheat Ridge, CO. His research interests include the chemistry and physics of fullerene compounds, supramolecular chemistry, strongly oxidizing systems, and electrophilic cations.

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Section: B C 60 N-fulleridesmentioning

confidence: 99%

Discrete Fulleride Anions and Fullerenium Cations

2000

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“…The spectrum of C& in a neon matrix measured by d 'Hendecourt et al (1992) also shows an intensity ratio of 1 : 1.5 for the two dominant bands, as does the published spectrum of Czo measured by Fulara et al (1993).…”

Section: Criteria For the Spectroscopic Identification Of Czomentioning

confidence: 54%

“…The spectrum of C& in rare gas matrices shows two dominant peaks at 9663 k 9 and 9724 &4 A in argon and at 958Ok4 and 9642k 3 A in neon (Gasyna et al, 1992;d'Hendecourt et al, 1992 ;Fulara et al, 1993). These bands are five times stronger than any other features in the 5000-10,000 A range.…”

Section: Cand In the Diffuse Intersteliar Mediummentioning

confidence: 91%

“…Spectra of the naphthalene and pyrene cations in a solid neon matrix were reported recently, indicating a link between these small PAH ions and the diffuse bands (Salama and Allamandola, 199 1, 1992a, b). The spectra of the coronene and ovalene cations have been measured in solid neon (Ehrenfreund et al, 1992 and recently the spectrum of C& has been measured in both argon and neon matrices (Kate et al, 1991;Gasyna et al, 1992 ;d'Hendecourt et al,, 1992 ;Fulara et al, 1993).…”

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confidence: 99%

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Search for fullerenes and PAHs in the diffuse interstellar medium

Ehrenfreund¹,

Foing²

1995

Planetary and Space Science

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Abstract. Recent studies suggest carbon-containing moleGuIes as the best candidates for carriers of the unidentified diffuse interstellar bands (DIBs), considering their abundance and ability to form stable bonds in interstellar space. We have searched for new DIBs in the near-IR and have detected two new dilfuse bands that are consistent with laboratory measurements of C& in a neon matrix. Criteria for this possible identification are discussed. From these observations and the DIB measured absorption, we estimate that up to 0.9% of interstehe carbon could be in the form of C&, We also searched for polycyclic aromatic hydrocarbon (PAH) cations and have derived corresponding limits for the presence of the coronene Cz4Hkz and ovalene C&I& cations in space. We have studied the ionization properties of these PAH cations, which could explain their selective destruction. From these results we discuss the role of fuller-en& and PAHs as possible DIB carriers.

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“…This problem may be partly circumvented by mass-selective deposition of ions created ex-situ, see e.g. Fulara et al (1993).…”

Section: Experimental Methods Comparedmentioning

confidence: 99%