Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Rupert Edward Von Haken Spence"'
Autor:
Silke Courtenay, Todd Graham, Douglas W. Stephan, Pingrong Wei, Emily Hollink, Daryll G. Harrison, Wei Xu, Chad Beddie, James E. Kickham, Linda Koch, Aaron J. Hoskin, Jeffrey C. Stewart, Rupert Edward Von Haken Spence, Frédéric Guérin, Xiaoliang Gao
Publikováno v:
Organometallics. 22:1937-1947
A strategy for polymerization catalyst design has been developed based on the steric and electronic analogy of bulky phosphinimides to cyclopentadienyl ligands. To this end, the family of complexes of the form (Cp†)TiCl2(NPR3) has been prepared and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ecef629271e492e42c2c9ccaffaf34f
https://doi.org/10.1021/om020954t
https://doi.org/10.1021/om020954t
Autor:
John William Swabey, Douglas W. Stephan, Matthew G Kowalchuk, Steve J. Brown, Rupert Edward Von Haken Spence, Xiaoliang Gao
Publikováno v:
Canadian Journal of Chemistry. 80:1618-1624
A new class of titanium complexes containing a tropidinyl (trop) ligand and a phosphinimido (R3P=N-) or a ketimide ligand (R2C=N-) were synthesized and characterized. The combination of the cyclopentadienyl equivalent tropidinyl and phosphinimido lig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a068f94455113c6ea9038d24abf6c51
https://doi.org/10.1139/v02-170
https://doi.org/10.1139/v02-170
Publikováno v:
The Journal of Organic Chemistry. 59:2997-3002
Reduction of 5-(methylthio)-1,4,2-dithiazolium (3, R=H, Me, Ph) salts with zinc powder yields the corresponding diazahexathioorthooxalate derivatives (RCNS 2 ) (MeS)CC(SMe) (S 2 NCR) (4, R=H, Me, Ph). Thermolysis of these materials in the presence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d466f2f8d1faec3c12d88b192c364e1
https://doi.org/10.1021/jo00090a016
https://doi.org/10.1021/jo00090a016
Autor:
Pierre Losier, Neil Burford, Bruce W. Royan, Robin D. Rogers, John F. Richardson, Simon Mason, T. Stanley Cameron, Rupert Edward Von Haken Spence, B. Borecka, Pradip K. Bakshi
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 76:17-20
The factors responsible for the isolation or identification of (carbenic) phosphenium and (alkenic) tricoordinate phosphonium salts are discussed. Structural features, reactivity and observations of intramolecular rearrangement are presented, which i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04b8136b17228e7e1103a4ef096b9d74
https://doi.org/10.1080/10426509308032347
https://doi.org/10.1080/10426509308032347
Autor:
Johann Weidlein, Yoshito Okada, Anders Hallberg, John F. Richardson, Rupert Edward Von Haken Spence, Stephen L. Buchwald, Rolf Svenson, Ahmad Nasiri, Michael Greune, Jörgen Alvhäll
Publikováno v:
Acta Chemica Scandinavica. 47:326-329
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc98be05db23111de5764000624de3a6
https://doi.org/10.3891/acta.chem.scand.47-0326
https://doi.org/10.3891/acta.chem.scand.47-0326
Autor:
Neil Burford, J. Marc Whalen, Rupert Edward Von Haken Spence, Robin D. Rogers, John F. Richardson
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 64:137-144
A study of the interaction of imino-, oxo-, thio- and seleno- phosphorylic systems with Lewis acids has produced a number of interesting results, which represent a significant experimental contribution towards our understanding of the phosphorylic sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5f21468207333868731ea63ac38691c
https://doi.org/10.1080/10426509208041139
https://doi.org/10.1080/10426509208041139
Publikováno v:
J. Chem. Soc., Dalton Trans.. :1615-1619
Reactions between diaminoiminophosphinic chlorides and the chloride-abstracting agents AlCl3 and Ag(SO3CF3) have been comprehensively examined as potential routes to the three-co-ordinate iminophosphonium cation. However, bis(dialkylamino)(phenylimin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e5d6f0b0975cf4fb402edd7a680b37
https://doi.org/10.1039/dt9910001615
https://doi.org/10.1039/dt9910001615
Autor:
John William Swabey, Linda Koch, Daryll G. Harrison, Peter Zoricak, Wei Xu, Rupert Edward Von Haken Spence, Douglas W. Stephan, Xiaoliang Gao, Frédéric Guérin, Qinyan Wang, Steve J. Brown
Publikováno v:
Organometallics. 18:2046-2048
The bis(tri-tert-butylphosphinimide) complexes (t-Bu3PN)2TiCl2 (1) and (t-Bu3PN)2TiMe2 (2) were prepared and characterized crystallographically. Stoichiometric reactions of 2 with PhNMe2H[B(C6F5)4] in the presence of PMe3 afforded [(t-Bu3PN)2TiMe(PMe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::962db5f72397a33bdfc3a2e8cc361f50
https://doi.org/10.1021/om981026q
https://doi.org/10.1021/om981026q
Autor:
Wei Xu, Jeffrey C. Stewart, Rupert Edward Von Haken Spence, Douglas W. Stephan, Frédéric Guérin, Daryll G. Harrison
Publikováno v:
Organometallics. 18:1116-1118
Complexes of the form (Cp†)TiCl2(NPR3) and the analogous dimethyl derivatives (Cp†)TiMe2(NPR3) have been prepared. These species in the presence of MAO, B(C6F5)3, or [Ph3C][B(C6F5)4] are active catalysts for ethylene polymerization.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9adee9e1cd7c1d6eaff2212a50465603
https://doi.org/10.1021/om980955e
https://doi.org/10.1021/om980955e
Publikováno v:
J. Chem. Soc., Dalton Trans.. :2111-2117
A series of compounds with the general formula R3PE·AlCl3(R = Ph or NMe2, E = S or Se) has been examined by n.m.r. spectroscopy as a contribution toward the characterisation of the P–E bond and of the co-ordinate bond. Two derivatives, Ph3PS·AlCl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e4dac58e69551bc95974ec48f107470
https://doi.org/10.1039/dt9900002111
https://doi.org/10.1039/dt9900002111