Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 341
... latter compound is completely different in position , lifetime , and structure from the spectrum of benzophenone , and is more similar to the spectrum of biphenyl . The latter compound must possess a lowest T1 ( л , π * ) state , so ...
... latter compound is completely different in position , lifetime , and structure from the spectrum of benzophenone , and is more similar to the spectrum of biphenyl . The latter compound must possess a lowest T1 ( л , π * ) state , so ...
Página 433
... latter process may occur via D , D , or D + states ( Scheme 11.2 ) . Orbital Interactions and Correlation Diagrams for the Photocycloaddition of Ketones to Ethylenes Figure 11.4 reviews the two major orbital interactions that can be ...
... latter process may occur via D , D , or D + states ( Scheme 11.2 ) . Orbital Interactions and Correlation Diagrams for the Photocycloaddition of Ketones to Ethylenes Figure 11.4 reviews the two major orbital interactions that can be ...
Página 462
... latter undergoes conversion to a singlet diradical that kinetically prefers closure to trans product rather than bond rotation . Although a trans cyclic enone might be considered as a reactive intermediate in some of these ...
... latter undergoes conversion to a singlet diradical that kinetically prefers closure to trans product rather than bond rotation . Although a trans cyclic enone might be considered as a reactive intermediate in some of these ...
Conteúdo
1 | 10 |
Electronic Orbitals Configurations and States | 17 |
7 | 21 |
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absorption acceptor acetone aromatic benzene benzophenone bimolecular bond carbonyl Chem chemical CIDNP collision compounds configuration conrotatory correlation diagram corresponds cyclic cycloaddition Dewar benzene dipole diradical donor efficiency electrocyclic electrocyclic reactions electron spin electronically excited emission energy transfer ethylene example excimer exciplex experimental Figure fluid solution fluorescence formation Franck-Condon hydrogen abstraction intermediate internal conversion intersystem crossing intramolecular jump k₁ kcal/mole ketones lifetime magnetic field mechanism molecular molecule naphthalene nuclear geometry nuclear motion observed occur organic molecules oscillator oxetane oxygen pathway Ph Ph phosphorescence photochemical photochemistry photocycloaddition photon Photophysics photoreactions photosensitized Phys possess processes quantum yield quencher quenching radiationless transitions radiative radical pair rate constant reactant reaction reactive rearrangement representative point result ring S₁ S₁(n S₂ sec¯¹ sec¹ sensitization singlet solvent spectroscopic spectrum spin-orbit coupling structure symmetry T₁ temperature triplet triplet-triplet Turro undergo vibrational x-cleavage Zero Order zwitterionic