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91.
Nomoto A Mitsuoka H Ozeki H Kobuke Y 《Chemical communications (Cambridge, England)》2003,(9):1074-1075
Introducing a porphyrin bearing electron acceptor onto a self-assembled monolayer (SAM) using a supramolecular method to form a hetero-dimer increased the photocurrent value compared with using porphyrin without an electron acceptor. 相似文献
92.
Kanai M Yasumoto M Kuriyama Y Inomiya K Katsuhara Y Higashiyama K Ishii A 《Organic letters》2003,5(7):1007-1010
[reaction: see text] The highly regioselective hydrogenolysis of bis(alpha-methylbenzyl)amine derivatives proceeded with influence not from the electronic effect but from the steric effect of the trifluoromethyl substituent on the aromatic ring to provide a practical asymmetric synthesis of trifluoromethyl-substituted alpha-phenylethylamines. 相似文献
93.
94.
We study the scattering theory for the Maxwell-Schrödinger equations
under the Coulomb gauge and the Lorentz gauge conditions in three space dimensions.
These equations belong to the borderline between the short range case and
the long range one. We prove the existence of modified wave operators for those
equations for small scattered states with no restriction on the support of the Fourier
transform of them.
Communicated by Vincent Rivasseau
submitted 14/11/02, accepted: 29/04/03 相似文献
95.
Stefan Hollands Akihiro Ishibashi Robert M. Wald 《Communications in Mathematical Physics》2007,271(3):699-722
A key result in the proof of black hole uniqueness in 4-dimensions is that a stationary black hole that is “rotating”—i.e.,
is such that the stationary Killing field is not everywhere normal to the horizon—must be axisymmetric. The proof of this
result in 4-dimensions relies on the fact that the orbits of the stationary Killing field on the horizon have the property
that they must return to the same null geodesic generator of the horizon after a certain period, P. This latter property follows, in turn, from the fact that the cross-sections of the horizon are two-dimensional spheres.
However, in spacetimes of dimension greater than 4, it is no longer true that the orbits of the stationary Killing field on
the horizon must return to the same null geodesic generator. In this paper, we prove that, nevertheless, a higher dimensional
stationary black hole that is rotating must be axisymmetric. No assumptions are made concerning the topology of the horizon
cross-sections other than that they are compact. However, we assume that the horizon is non-degenerate and, as in the 4-dimensional
proof, that the spacetime is analytic. 相似文献
96.
97.
We show that the Nomura algebra of the nonsymmetric Hadamard model coincides with the Bose–Mesner algebra of the directed Hadamard graph. 相似文献
98.
99.
Akihiro Furuta 《Tetrahedron letters》2008,49(1):110-113
A combination of a catalyst derived from ferrous acetate and sodium thiophene-2-carboxylate efficiently promoted hydrosilylation of aromatic and aliphatic ketones to give the corresponding secondary alcohols in high yields with extremely high selectivity. 相似文献
100.