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Trang 1749
The appearance of a long - wave component in the spectra of highly acidified solutions can be due to protonation of the meso nitrogen atom of phthalocyanine . Being rather weak bases , phthalocyanines are protonated by strong mineral ...
The appearance of a long - wave component in the spectra of highly acidified solutions can be due to protonation of the meso nitrogen atom of phthalocyanine . Being rather weak bases , phthalocyanines are protonated by strong mineral ...
Trang 1830
Acidification was accompanied by the upfield shift of signal B , its weakening , and the appearance of species A and C ( pH 2-4 ) and PW 12 ( pH < 3 ) ; the fraction of B was considerably higher than in direct titration ( Fig . 1 ) .
Acidification was accompanied by the upfield shift of signal B , its weakening , and the appearance of species A and C ( pH 2-4 ) and PW 12 ( pH < 3 ) ; the fraction of B was considerably higher than in direct titration ( Fig . 1 ) .
Trang 1891
A further increase in the dimethyltellurium content leads to the appearance of the solvate with structure II and , hence , to a decrease in the contribution of the D ( Cd - CHZ Cd ) bond and an increase in the contribution of the weaker ...
A further increase in the dimethyltellurium content leads to the appearance of the solvate with structure II and , hence , to a decrease in the contribution of the D ( Cd - CHZ Cd ) bond and an increase in the contribution of the weaker ...
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Synthesis and Properties of Inorganic Compounds | 1301 |
S Xray Diffraction Study of LnMn2O5 5 LnLa Nd M Ca Ba LIBRARY | 1308 |
Synthesis of MolybdenumIV Oxide in Lithium ChloridePotassium Chloride EutecticMelts | 1317 |
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absorption according acid added addition analysis angle anions aqueous atoms band bond bridging calculated cation changes charge Chem chemical Chemistry chloride complexes composition compounds concentration constant containing coordination Copyright corresponding crystal curves decomposition decrease derivatives described determined diagram distances effect electron energy enthalpies experimental extraction formation frequencies heating higher hydrogen increase indicates initial Inorganic intensity interaction ions Khim kJ/mol ligand measured melt metal method mixed mixtures mol/l molecules Moscow Neorg observed obtained occur oxide oxygen parameters phase phosphate positions powder prepared presented properties Publishing range ratio reaction REFERENCES region respectively Russian salts samples shift shows similar sodium solid solution space group spectra spectrum stability structure studied synthesis Table temperature thermal tion Translation unit values vibrations X-ray diffraction