Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 23
... result , the Pauli principle does not require the spin of these two electrons to be paired . As a result , a singlet excited state in which there is no net spin ( i.e. , electron spins are paired as in the ground state ) or a triplet ...
... result , the Pauli principle does not require the spin of these two electrons to be paired . As a result , a singlet excited state in which there is no net spin ( i.e. , electron spins are paired as in the ground state ) or a triplet ...
Página 238
... result , a smaller price in activation entropy must be paid ( less organization required ) to reach the transition state for hydrogen abstraction . This results in a more positive AS ( larger A ) for 14 than for 2 and , because of the ...
... result , a smaller price in activation entropy must be paid ( less organization required ) to reach the transition state for hydrogen abstraction . This results in a more positive AS ( larger A ) for 14 than for 2 and , because of the ...
Página 255
... result of electronic spin transitions or the absorption of radio frequency radiation as the result of nuclear spin transitions . Table 8.3 elaborates on these three types of reaction - intermediates detection . 8.9 Experimental Tests ...
... result of electronic spin transitions or the absorption of radio frequency radiation as the result of nuclear spin transitions . Table 8.3 elaborates on these three types of reaction - intermediates detection . 8.9 Experimental Tests ...
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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