Quarterly Journal of the Chemical Society of London, Volume 7 |
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Page 1160
... proton spectrum and a variable - temperature proton and boron - 11 n.m.r. study of this ion , in an attempt to slow or stop the intra- molecular proton tautomerism . Previously , it has been shown that 1H nuclei in some boron hydrides ...
... proton spectrum and a variable - temperature proton and boron - 11 n.m.r. study of this ion , in an attempt to slow or stop the intra- molecular proton tautomerism . Previously , it has been shown that 1H nuclei in some boron hydrides ...
Page 1161
... proton resonance peak . * At low temperatures , only one singlet is observed which implies , of course , that the protons are still equivalent and are undergoing rapid exchange . Proton n.m.r. spectra of the ion in a acetaldehyde ...
... proton resonance peak . * At low temperatures , only one singlet is observed which implies , of course , that the protons are still equivalent and are undergoing rapid exchange . Proton n.m.r. spectra of the ion in a acetaldehyde ...
Page 1657
... protons of a methyl group approach the metal the smaller becomes the platinum - proton coupling . By contrast , the closer an olefinic proton ( = CH- ) approaches the platinum the greater becomes its coupling . This latter effect has ...
... protons of a methyl group approach the metal the smaller becomes the platinum - proton coupling . By contrast , the closer an olefinic proton ( = CH- ) approaches the platinum the greater becomes its coupling . This latter effect has ...
Contents
Inorganic physical and theoretical chemistry | 1001 |
J ROBINSON and C H L KENNARD | 1008 |
Nearestneighbour model for transfer of electronic excitation energy | 1016 |
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absorption acid Acta adducts Amer anion aqueous assigned atoms band benzene bond calculated cancrinite carbon cation Chem chemical chemical shifts Chemistry chloride cm.¹ co-ordination cobalt(II complex compounds concentration configuration crystals density effect electron energy enthalpy equation equilibrium ethanol experimental Figure fluorine formation frequency H₂O hydrogen i.r. spectrum increase Inorg intensity interaction iron(II k₁ ligand linear magnetic measured metal methaemoglobins method methyl mixture modes mole mole-¹ molecular molecule n.m.r. spectra niobium nitrogen Nujol observed obtained orbitals oxidation oxygen parameters peak perchlorate perchloric acid phenyl phosphine phosphorus Phys potassium prepared present proton pyridine radical Raman rate constant reaction resonance ring room temperature salt sample shift shown sodalite sodium solid solution solvent species spectra structure studied sulphur symmetry Table thiocyanate tion trans tributyl phosphate triphenylphosphine values vanadium(IV vibrations X-ray zeolite