Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 47
... base complexes . A useful criterion of their stability is pro- vided by Pearson's theory of hard and soft acids and bases.17 The silver ion is a soft acid and so will co- ordinate best with a surface site that is a soft base , and ...
... base complexes . A useful criterion of their stability is pro- vided by Pearson's theory of hard and soft acids and bases.17 The silver ion is a soft acid and so will co- ordinate best with a surface site that is a soft base , and ...
Page 134
... base , and in particular a tertiary amine , can replace 8 + ÑH2R3 ( II ) 10ko 1.05 1.70 0.313 0.515 0.823 1.03 1.25 1.66 0.36 0.61 2.15 2.58 3.43 0- 08- oba k1 20.6 R2 R2 [ t - Bu ] 0.153 0.383 R1 R1- 10k obs 0.30 0.63 k1 = 0-18 H - N H ...
... base , and in particular a tertiary amine , can replace 8 + ÑH2R3 ( II ) 10ko 1.05 1.70 0.313 0.515 0.823 1.03 1.25 1.66 0.36 0.61 2.15 2.58 3.43 0- 08- oba k1 20.6 R2 R2 [ t - Bu ] 0.153 0.383 R1 R1- 10k obs 0.30 0.63 k1 = 0-18 H - N H ...
Page 484
... base - solvent solution was prepared ( 2 ml . of base solu- tion and 10 ml . of solvent mixture ) , and aliquots ( 2 ml . ) were added to five test - tubes fitted with Quickfit stoppers . To one of the tubes was added 1 - ml . of ...
... base - solvent solution was prepared ( 2 ml . of base solu- tion and 10 ml . of solvent mixture ) , and aliquots ( 2 ml . ) were added to five test - tubes fitted with Quickfit stoppers . To one of the tubes was added 1 - ml . of ...
Contents
Physical organic chemistry | 1 |
Aromatic reactivity Part XXXVIII Protodesilylation of 12dihydrobenzocyclobutene indan and tetralin | 12 |
Aromatic reactivity Part XL Additional substituent effects in protodetrimethylsilylation | 21 |
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absorption acetic acid activation added addition alcohol Amer analysis angles appears aqueous atom base benzene bond bromide calculated carbon carbon tetrachloride Chem chemical chloride compared complex compounds concentration conformation constants containing corresponding coupling derived described determined DISCUSSION effect electron energy equation esters ethanol ether expected experimental experiments factor Figure followed formation formed further gave give given hydrogen hydrolysis increase indicate initial intermediate involving kinetic less measured mechanism method methyl mixing mixture mole molecular molecule nitration observed obtained occurs organic oxidation oxygen peaks peroxide Phys plot position possible prepared present pressure proton radical rate constants ratio reaction reactivity reduced relative reported requires resonance respectively ring salts shifts showed shown similar sodium solution solvent spectra spectrum structure studied substituent suggested Table temperature values yield