Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 255
... Reactive Intermediates In order to qualify as a nonisolable reactive intermediate , we shall require that such a species possess a molecular structure sufficiently stable such that its exis- tence is subject to experimental confirmation ...
... Reactive Intermediates In order to qualify as a nonisolable reactive intermediate , we shall require that such a species possess a molecular structure sufficiently stable such that its exis- tence is subject to experimental confirmation ...
Página 256
... reactive intermediates in terms of ( a ) chemical measurements or ( b ) physical measurements ( Table 8.3 ) ... reactive state . Concerted reaction Initial ( reactant ) structure implies Successor structures implies Final ( product ) ...
... reactive intermediates in terms of ( a ) chemical measurements or ( b ) physical measurements ( Table 8.3 ) ... reactive state . Concerted reaction Initial ( reactant ) structure implies Successor structures implies Final ( product ) ...
Página 375
... reactive , but less reactive than their n , * counterparts . Mixing and Switching of State Configurations 23 The model for the n , π * state of ketones discussed above suffices for a description of the photochemistry of ketones ...
... reactive , but less reactive than their n , * counterparts . Mixing and Switching of State Configurations 23 The model for the n , π * state of ketones discussed above suffices for a description of the photochemistry of ketones ...
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