Zobrazeno 1 - 10
of 88
pro vyhledávání: '"John P. B. Sandall"'
Publikováno v:
ARKIVOC, Vol 2002, Iss 3, Pp 19-36 (2002)
Externí odkaz:
https://doaj.org/article/a1af31edfeed4a87b8dcba7d0f2a93c1
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1718-1721
The energies of various isomeric cycloaddition products of C60F18 with anthracene, buta-1,3-diene and benzene are calculated using a semi-empirical method. The energies are variously correlated with each other and with the Coulson free valence index
Publikováno v:
ARKIVOC, Vol 2002, Iss 3, Pp 19-36 (2002)
Autor:
Joan M. Street, Adam D. Darwish, Olga V. Boltalina, John P. B. Sandall, Patrick W. Fowler, Anthony G. Avent, Xian-Wen Wei, Roger Taylor
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :41-46
Reaction of C60F18 with diethyl bromomalonate in the presence of DBU results in the nucleophilic replacement of either one, two, or three of the most accessible fluorine atoms by CBr(CO2Et)2 moieties, in preference to formation of a cyclopropanated d
Autor:
Ross W. Millar, Robert P. Claridge, Roy B. Moodie, John P. B. Sandall, N. Llewellyn Lancaster
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :197-200
The reaction of 1-chloro-2-nitrobenzene with dinitrogen pentoxide in dichloromethane catalysed by H-faujasite zeolites F-712, F-720, F-780 and F-901, giving 1-chloro-2,4-dinitro- and 1-chloro-2,6-dinitrobenzene in approximately 30∶1 ratio, is a kin
Publikováno v:
Tetrahedron. 55:10243-10252
N-Aryl-S,S-diphenylsulfilimines with unusual substitution patterns have been prepared by reacting the novel nitrogen nucleophile N-lithio-S,S-diphenylsulfilimine with a range of activated aromatic substrates. N-Lithio-S,S-diphenylsulfilimine is not o
Autor:
Gotthard Seifert, P.W. Fowler, Francesco Zerbetto, John P. B. Sandall, Thomas Heine, Kevin M. Rogers
Publikováno v:
Chemical Physics Letters. 300:369-378
Structures and energies are calculated at the DFTB level for C 36 -based fullerenes, hydrides, oligomers and solids. The two fullerenes with minimal pentagon adjacencies are isoenergetic. The isomer implicated in recent experiments has C 6 v broken s
Autor:
Ross W. Millar, John P. B. Sandall, Robert P. Claridge, N. Llewellyn Lancaster, Roy B. Moodie
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1815-1818
The reactions of 2-nitrotoluene, 1-chloro-2-nitrobenzene, and 1-chloro-4-nitrobenzene with dinitrogen pentoxide in dichloromethane at 0 °C are strongly catalysed by some zeolites notably H-Faujasite-720, catalysis by which is investigated in detail.
Autor:
Marianna Fanti, Francesco Zerbetto, Roberto Bini, Giorgio Orlandi, Sydney Leach, John P. B. Sandall, Christoph Rüchardt, Jochen Ebenhoch, P.W. Fowler
Publikováno v:
Scopus-Elsevier
Several samples of C 60 H 36 have been prepared by the transfer hydrogenation method and studied by infrared and Raman spectroscopy. The results are compared with published infrared spectra of C 60 H 36 samples synthesized by other techniques such as
Autor:
Roger Taylor, Joan M. Street, Anthony G. Avent, Andrei Yu. Lukonin, John P. B. Sandall, Patrick W. Fowler, Valeria K. Pavlovich, Olga V. Boltalina
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1319-1322
C60F18O, obtained as a byproduct of fluorination of [60]fullerene with K2PtF6, has Cs symmetry, the oxygen being located in one of the symmetry planes of C3v C60F18. C60F20, isolated in low yield, also has Cs symmetry arising from addition of F2 eith