Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 272
... separation of the electron spin dipoles ( and by inference the average separation of electrons ) may be derived.22 It can be shown that D ~ 2 g2 B2 R12 → D ~ 10-24 R12 12 ( 8.68 ) where R12 is the average separation of the electron ...
... separation of the electron spin dipoles ( and by inference the average separation of electrons ) may be derived.22 It can be shown that D ~ 2 g2 B2 R12 → D ~ 10-24 R12 12 ( 8.68 ) where R12 is the average separation of the electron ...
Página 304
... separation of D and A. R , is termed the " critical separation , " for which the rate of energy transfer and inherent rate of deactivation of D * are equal . The rate constant and the efficiency for energy transfer by the dipole ...
... separation of D and A. R , is termed the " critical separation , " for which the rate of energy transfer and inherent rate of deactivation of D * are equal . The rate constant and the efficiency for energy transfer by the dipole ...
Página 305
... separation R ) a k , Efficiency : ( for any separation R ) a Ro R 6 τ = ( 1 ) ( ) R R ( R. ) ° 6 6 ET ( 9.15 ) is the actual mean lifetime of D * , R is the separation between the centers of D * and A , R , is the critical separation of ...
... separation R ) a k , Efficiency : ( for any separation R ) a Ro R 6 τ = ( 1 ) ( ) R R ( R. ) ° 6 6 ET ( 9.15 ) is the actual mean lifetime of D * , R is the separation between the centers of D * and A , R , is the critical separation of ...
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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