Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Pei-Chao Cheng"'
Publikováno v:
Synlett. :173-176
Nucleophilic aromatic substitution of all the chlorine atoms in 1,3,5,7,9-pentachlorocorannulene and in decachlorocorannulene by sodium alkanethiolates gives 1,3,5,7,9-pentakis(1-alkylthio)corannulenes, C 2 0 H 5 (SR) 5 , and decakis(1-alkylthio)cor-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::347a9ae7fb9a00687470165f0b6e7600
https://doi.org/10.1055/s-2003-44965
https://doi.org/10.1055/s-2003-44965
Autor:
Tetsu Kiyobayashi, Gary Nichols, James S. Chickos, Paul Webb, Pei-Chao Cheng, Lawrence T. Scott
Publikováno v:
The Journal of Chemical Thermodynamics. 34:1195-1206
The sublimation enthalpy of corannuleneΔcrgHm (298.15 K) has been measured by head space analysis and by combining the fusion and vaporization enthalpies. A mean value of (118.3 ± 3.3)kJ · mol − 1was obtained. The vaporization enthalpies of pery
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::738d3b38461bd747c243d048793e0b66
https://doi.org/10.1006/jcht.2002.0977
https://doi.org/10.1006/jcht.2002.0977
Publikováno v:
The Journal of Physical Chemistry A. 104:7689-7694
The molecular structure of corannulene has been investigated by gas-phase electron diffraction with help from ab initio calculations at the B3LYP/6−31(d) level and normal coordinate analysis. The structure is closely similar to both that found in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::235e71793be1aa267c76be292b3e4998
https://doi.org/10.1021/jp0015527
https://doi.org/10.1021/jp0015527
Autor:
Eric Bayrd, Roy E. Hoffman, Dorin V. Preda, Pei-Chao Cheng, Elad Shabtai, Lawrence T. Scott, Mordecai Rabinovitz
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :129-133
Two corannulenes joined by an octamethylene chain as in 1,8-dicorannulenyloctane (3) can be reduced with lithium, sodium, potassium or cesium in [D8]THF to give a purple tetraanion. In this state, each corannulene moiety behaves as an independent, st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dbc0d1baadaef826066a081fd76f34a
https://doi.org/10.1039/a905403k
https://doi.org/10.1039/a905403k
Autor:
Elad Shabtai, Robert C. Haddon, Pei-Chao Cheng, Anthony Khong, R. James Cross, Roy E. Hoffman, Martin Saunders, Amir Weitz, Mordecai Rabinovitz, Lawrence T. Scott
Publikováno v:
Journal of the American Chemical Society. 120:6389-6393
The reduction of 3He@C60 and 3He@C70 by lithium metal to give solutions of the corresponding hexaanions in THF-d8 has been achieved under gentle conditions, at subambient temperatures, without sonication, by capitalizing on the ability of corannulene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f014f6a493f2593c4246f2e53d1edf6f
https://doi.org/10.1021/ja9805831
https://doi.org/10.1021/ja9805831
Autor:
Lawrence T. Scott, Mohammed M. Hashemi, Dayton T. Meyer, Pei-Chao Cheng, Hope B. Warren, Matthew S. Bratcher
Publikováno v:
Journal of the American Chemical Society. 119:10963-10968
Thermal cyclization of 7,10-diethynylfluoranthene (3) in the gas phase gives corannulene (2), the smallest bowl-shaped polycyclic hydrocarbon fragment of C60 with fullerene-like curvature. Bromocorannulene (10) and 1,6-dibromocorannulene (9) have als
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7467be8e5f9faabdd3fa13343b9acfa8
https://doi.org/10.1021/ja972019g
https://doi.org/10.1021/ja972019g
Autor:
David R. M. Walton, Roger Taylor, Harold W. Kroto, Pei-Chao Cheng, Colin Crowley, Lawrence T. Scott
Publikováno v:
Synthetic Metals. 77:17-22
Recently, we have shown that [60] fullerene (C 60 ) may be produced by pyrolysis of the bowl-shaped corannulene molecule under a wide range of conditions. Both naphthalene and its dimer benzo [ k ] fluoranthene may be employed as precursors to C 60 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::648f4ce718331b98a96a24fe6640ced6
https://doi.org/10.1016/0379-6779(96)80048-8
https://doi.org/10.1016/0379-6779(96)80048-8
Autor:
Roger Taylor, Harold W. Kroto, Lawrence T. Scott, Colin Crowley, David R. M. Walton, Matthew S. Bratcher, Pei-Chao Cheng
Publikováno v:
Tetrahedron Letters. 36:9215-9218
[60]Fullerene is produced by pyrolysis of corannulene between 650 and 1200 °C, (either with or without the presence of Pd/C or Co catalysts), 7, 10- bis(2,2′ -dibromovinyl)fluoranthene (a corannulene precursor) at 700 °C, and of 11, 12-benzofluor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0437d43c63f8d214b9431fc0e6a00e4b
https://doi.org/10.1016/0040-4039(95)01944-d
https://doi.org/10.1016/0040-4039(95)01944-d
Autor:
Mordecai Rabinovitz, Vladimir Rozenshtein, Lawrence T. Scott, Pei-Chao Cheng, Gil Zilber, Haim Levanon
Publikováno v:
Journal of the American Chemical Society. 117:10720-10725
Tetrahydrofuran (THF) solutions of corannulene (Cor) reduced by lithium metal exhibit electron paramagnetic resonance (EPR) features that depend on the reduction stage of Cor, the temperature, and the nuclear spin (isotope effect). Photoexcitation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9909b784134d6f0d5736c4638d1019ef
https://doi.org/10.1021/ja00148a014
https://doi.org/10.1021/ja00148a014
Autor:
Martin Baumgarten, Lileta Gherghel, Amir Weitz, Manfred Wagner, Lawrence T. Scott, Mordecai Rabinovitz, Pei-Chao Cheng
Publikováno v:
Journal of the American Chemical Society. 117:6254-6257
The reduction of corannulene (1) has been followed by parallel detection of optical absorption, electron paramagnetic resonance (EPR), and nuclear magnetic resonance (NMR) spectroscopies. The major findings are the existence of a diamagnetic dianion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d39af8f22d5956aea091768a4fb04119
https://doi.org/10.1021/ja00128a012
https://doi.org/10.1021/ja00128a012