Russian Journal of Inorganic Chemistry, Tập 44,Số phát hành 9-12British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1999 |
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Trang 1354
... Mixture Temp . , ° C 8 : 1 ( I ) 250 Crystalline phases ( NH4 ) V6O17 · 14H2O , Na2V6O16 · 3H2O . 300 400 V2O5 ... mixture dissociates at lower temperatures compared to the pure salt and produces an equal mixture of the two polyvanadates ...
... Mixture Temp . , ° C 8 : 1 ( I ) 250 Crystalline phases ( NH4 ) V6O17 · 14H2O , Na2V6O16 · 3H2O . 300 400 V2O5 ... mixture dissociates at lower temperatures compared to the pure salt and produces an equal mixture of the two polyvanadates ...
Trang 1552
... mixture of 3.305 g ( 0.02 mol ) of L - ephedrine and 4.947 g ( 0.02 mol ) of P ( NEt2 ) , was heated in a current of argon to 120 ° C and maintained at that temperature with stirring for 1 h . To completely remove HNEt2 , the reaction ...
... mixture of 3.305 g ( 0.02 mol ) of L - ephedrine and 4.947 g ( 0.02 mol ) of P ( NEt2 ) , was heated in a current of argon to 120 ° C and maintained at that temperature with stirring for 1 h . To completely remove HNEt2 , the reaction ...
Trang 1824
... mixture , when heated to 60 ° C for 30 min , yielded a pale pink oil , which was washed with water ( 50 ml 3-4 times ) and extracted with chloroform . The organic layer was dried over 4 Å molecular sieves . After the solution was ...
... mixture , when heated to 60 ° C for 30 min , yielded a pale pink oil , which was washed with water ( 50 ml 3-4 times ) and extracted with chloroform . The organic layer was dried over 4 Å molecular sieves . After the solution was ...
Nội dung
Vol 44 No 9 1999 | 1335 |
Structural Transitions in Neodymium Nickelate upon Iso and Heterovalent Substitutions | 1342 |
Synthesis and Study of New Compounds of the Uranovanadate Family | 1347 |
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absorption according acid analysis angles anions aqueous atoms band bond bridging calculated carbon cations changes Chem chemical Chemistry complexes composition compounds concentration constant containing coordination Copyright corresponding crystal structure curves decrease determined diagram distances effect electron energy equal experimental extraction formation frequencies given H₂O heating hydrogen increase indicates Inorganic intensity interaction involved ions Khim lead lengths ligand measured melting metal method mixture molecules Moscow Nauk Neorg observed obtained occurs oxidation oxygen atoms parameters patterns phase Phys plane positions prepared present properties range ratio reaction REFERENCES refined reflections region respectively Russian salts samples Sciences shifts shows similar sodium solid solutions solution space group spectra spectrum stability studied synthesis Table temperature thermal tion transition Translation unit cell values vibrational X-ray diffraction