Modern Molecular PhotochemistryBenjamin/Cummings Publishing Company, 1978 - 628 páginas Inleiding tot de studie van organische fotochemische reacties |
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Página 499
... benzene , i.e. , compounds that can be formally derived from benzene by simple reorganization of л and σ bonds . These are : bicyclo- [ 2.2.0 ] -hexadiene ( commonly called Dewar benzene ) , benzvalene , and prismane . A fourth ...
... benzene , i.e. , compounds that can be formally derived from benzene by simple reorganization of л and σ bonds . These are : bicyclo- [ 2.2.0 ] -hexadiene ( commonly called Dewar benzene ) , benzvalene , and prismane . A fourth ...
Página 502
... benzene reveals that benzene is the major product of direct photolysis . A significant yield of prismane ( Eq . 12.53 ) is also produced via a [ 22 ] cyclization.65 Triplet sensitization of Dewar benzene yields benzene triplets in an ...
... benzene reveals that benzene is the major product of direct photolysis . A significant yield of prismane ( Eq . 12.53 ) is also produced via a [ 22 ] cyclization.65 Triplet sensitization of Dewar benzene yields benzene triplets in an ...
Página 503
... benzene are shown . 1 S1 of benzene produces Dewar benzene via a pathway analogous to the conven- tional electrocyclic ring closures , i.e. , S → minimum → So ( benzene ) + So ( Dewar ) . S1 does not correlate with a low - lying state ...
... benzene are shown . 1 S1 of benzene produces Dewar benzene via a pathway analogous to the conven- tional electrocyclic ring closures , i.e. , S → minimum → So ( benzene ) + So ( Dewar ) . S1 does not correlate with a low - lying state ...
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