Quarterly Journal of the Chemical Society of London, Issue 1, Pages 1-776 |
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Page 33
Conformational Dependence of the Proton Contact Shifts for 。- Electron Systems : a 220 MHz Nuclear Magnetic Resonance Study By ISAO MORISHIMA , * KOJI OKADA , MAMORU OHASHI , and TEIJIRO YONEZAWA ( Department of Hydrocarbon Chemistry ...
Conformational Dependence of the Proton Contact Shifts for 。- Electron Systems : a 220 MHz Nuclear Magnetic Resonance Study By ISAO MORISHIMA , * KOJI OKADA , MAMORU OHASHI , and TEIJIRO YONEZAWA ( Department of Hydrocarbon Chemistry ...
Page 35
This high - frequency 1H n.m.r. technique demonstrated that all eleven protons attached to the tropane skeleton in ( III ) ... The observed downfield shift of the C - 3 proton resonance , comparable with that of C - 2 Chemical shifts and ...
This high - frequency 1H n.m.r. technique demonstrated that all eleven protons attached to the tropane skeleton in ( III ) ... The observed downfield shift of the C - 3 proton resonance , comparable with that of C - 2 Chemical shifts and ...
Page 321
Assign- ments of the signals of ß - lactam protons ( III and IV ) are based upon the recent n.m.r. observations on partially deuteriated penicillins by Carlstedt et al . " III IV HH 7841 780- II S CH3 VI CH3 H COOK * THET HOD 8 ( p.p.m ) ...
Assign- ments of the signals of ß - lactam protons ( III and IV ) are based upon the recent n.m.r. observations on partially deuteriated penicillins by Carlstedt et al . " III IV HH 7841 780- II S CH3 VI CH3 H COOK * THET HOD 8 ( p.p.m ) ...
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Contents
Page | 1 |
Electrochemical Indications of New Oxidation States in Transitionmetal Dicarbollide Complexes | 8 |
Synthesis of a 1026Pyridinophane by U K GEORGI and J RÉTEY | 32 |
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acetate acid addition alcohol Amer analysis appears aromatic assigned atoms band bond calculated carbon carbonyl Chem Chemical Chemistry chloride chromatography co-ordination Comm complexes compounds concentration configuration confirmed consistent constants containing corresponding coupling Crystal Department of Chemistry derivatives determined effect electron ester ether evidence expected experiments Figure followed formation formed gave give hydrogen indicate intermediate involving isolated ligand mass measured mechanism metal method methyl mixture molecular molecule n.m.r. spectrum nitrogen observed obtained occurs oxidation oxygen peak position possible prepared presence protons radical ratio reaction rearrangement Received recently reduction relative reported Research resonance respectively ring Scheme shift shown shows signals similar solution solvent space group spectra spectrum structure studies substituted suggested Summary synthesis Table temperature Tetrahedron Letters thank tion University values X-ray yield