Results 11 to 20 of about 8,476 (220)

Preparation, crystallographic characterization and theoretical study of C70(CF3)16 and C70(CF3)18

open access: yesChemical Communications, 2006
C70(CF3)16 and C70(CF3)18, the first trifluoromethylated fullerene derivatives to comprise a pair of adjacent CF3 groups, have been isolated from a mixture obtained via reaction of C70 with CF3I, characterized in a single crystal XRD study and theoretically investigated at the DFT level of theory.
Stanislav M, Avdoshenko   +7 more
openaire   +3 more sources

Breaking of icosahedral symmetry: C60 to C70.

open access: yesPLoS ONE, 2014
We describe the existence and structure of large fullerenes in terms of symmetry breaking of the C60 molecule. Specifically, we describe the existence of C70 in terms of breaking of the icosahedral symmetry of C60 by the insertion into its middle of an ...
Mark Bodner   +2 more
doaj   +2 more sources

Kekulé Structures of Fullerene C70

open access: yesCroatica Chemica Acta, 2006
Despite that, besides Buckminsterfullerene C60, fullerene C70 is the next most stable structure, there are considerable differences in structural properties of these two most common fullerenes. The paper reports on numerous mathematical properties of the set of Kekulé structures of C70.
Randić, Milan, Vukičević, Damir
openaire   +4 more sources

Structure and properties of C70

open access: yesChemical Physics Letters, 1991
Abstract Electric and magnetic properties are calculated for C 70 at the optimised geometry in the STO-3G basis. The calculation gives a pictorial interpretation of the NMR spectrum of C 70 ; upper and lower region of the molecule have bond alternation and average chemical shift within 4 ppm of C 60 but the five central rings are benzenoid and the ...
J. BAKER   +4 more
openaire   +2 more sources

C60 and C70 made simply

open access: yesJournal of Chemical Education, 1992
Procedure and apparatus for synthesizing C60 and ...
Norman C. Craig   +2 more
openaire   +2 more sources

Generalizing the Chiral Self-Assembly of Spheres and Tetrahedra to Non-Spherical and Polydisperse Molecules in (C70)x(C60)(1-x)(SnI4)2

open access: yes, 2021
We describe the spontaneous chiral self-assembly of C70 with SnI4 as well as a mixture of C60 and C70 with SnI4. Macroscopic single crystals with the formula (C70)x(C60)1-x(SnI4)2 (x = 0-1) are reported.
Daniel B., Straus, Robert J., Cava
core   +1 more source

Investigation of mechanical properties of C70 nanowhiskers through bending and nanoindentation

open access: yesCarbon Trends, 2023
The mechanical properties of C70 nanowhiskers (NWs) grown using the liquid–liquid interfacial precipitation method were investigated through bending and nanoindentation experiments.
Miyabi Watanabe   +3 more
doaj   +1 more source

Formation of Water-Soluble Fullerenes [C60,C70] under Ultrasonication and Antioxidant Effect

open access: yesEurasian Chemico-Technological Journal, 2003
The water-soluble fullerenes [C60, C70] are prepared with fullerenes [C60, C70] and a mixture of oxidants (v/v) at the ratio of 3:1 under ultrasonic condition at room temperature.
Weon-Bae Ko   +2 more
doaj   +1 more source

The structure of the C70 molecule

open access: yesNature, 1992
ALTHOUGH there have been experimental studies of the structure of the C60 molecule in the gas phase1 and the solid state at low temperature2, so far only indirect experimental details of the structure of the C70 molecule have been available3. The ellipsoidal structure for C70, the subject of recent theoretical work4,5, should provide a useful test of ...
Mckenzie, D   +4 more
openaire   +2 more sources

Deep-red circularly polarised luminescent C70 derivatives

open access: yesScientific Reports, 2021
Optically active fullerenes, including C60 and C70 derivatives carrying organic substituents, are used in a range of applications because of their unique spectroscopic, catalytic, and chiral recognition properties.
Haruka Kano   +5 more
doaj   +1 more source

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