Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 275
... radical pair . The radical pair mechanism of CIDNP may be broken down into two parts : ( a ) the spin mechanics and spin dynamics ( time evolution of " singlet character " in triplet states and the development of " triplet character ...
... radical pair . The radical pair mechanism of CIDNP may be broken down into two parts : ( a ) the spin mechanics and spin dynamics ( time evolution of " singlet character " in triplet states and the development of " triplet character ...
Página 276
... radical pairs do not depend on spin multiplicity . Thus , depending on the spin state of a radical pair , the competition between cage reaction and escape ( via diffusion ) of the radical pair into solution will depend on the spin state ...
... radical pairs do not depend on spin multiplicity . Thus , depending on the spin state of a radical pair , the competition between cage reaction and escape ( via diffusion ) of the radical pair into solution will depend on the spin state ...
Página 528
... Radical Model From a consideration of orbital interactions and correlation diagrams , it appears that homolytic a - cleavage of the n , * states of ketones ( a so - called " Type I reaction ) is initiated by the electrophilic half ...
... Radical Model From a consideration of orbital interactions and correlation diagrams , it appears that homolytic a - cleavage of the n , * states of ketones ( a so - called " Type I reaction ) is initiated by the electrophilic half ...
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