Russian Journal of Inorganic Chemistry, Tập 43,Số phát hành 9-12British Library Lending Division with the cooperation of the Royal Society of Chemistry, 1998 |
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... macrocycle represents the TGT system of symmetry D3d . Given that all of the ethylene glycol units of 18 - crown - 6 have the TGT con- formation , one of the lone pairs of each oxygen atom is pointed inward to the macrocyclic cavity ...
... macrocycle represents the TGT system of symmetry D3d . Given that all of the ethylene glycol units of 18 - crown - 6 have the TGT con- formation , one of the lone pairs of each oxygen atom is pointed inward to the macrocyclic cavity ...
Trang 1393
... macrocycle is only Raman - active and gives rise to a band at ca. 859 cm- ' . In the IR spectrum of KBr · DA18C6 · 2H2O , stretching and bending vibrations of water give rise to sharp strong bands at 3442 , 3565 , and 1645 cm ...
... macrocycle is only Raman - active and gives rise to a band at ca. 859 cm- ' . In the IR spectrum of KBr · DA18C6 · 2H2O , stretching and bending vibrations of water give rise to sharp strong bands at 3442 , 3565 , and 1645 cm ...
Trang 1395
... macrocycle . In addition to the bands observed in the spectra of 2LiX DA18C6 2H2O , a new band emerges at ca. 786 cm - 1 ; following [ 2 ] , this band could be assigned to the TGGO unit . However , the diaza - 18- crown - 6 macrocycle ...
... macrocycle . In addition to the bands observed in the spectra of 2LiX DA18C6 2H2O , a new band emerges at ca. 786 cm - 1 ; following [ 2 ] , this band could be assigned to the TGGO unit . However , the diaza - 18- crown - 6 macrocycle ...
Nội dung
Vol 43 No 9 1998 | 1301 |
Xray Diffraction Study of LnMn2O5 5 Ln La Nd M Ca Ba LIBRARY | 1308 |
Synthesis of MolybdenumIV Oxide in Lithium ChloridePotassium Chloride EutecticMelts | 1317 |
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2H₂O absorption acid analysis angle anions aqueous solution atoms band barium calculated carbon cathodoluminescence cation chelate Chem chemical Chemistry Chernorukov chloride cm-¹ complexes composition compounds concentration copper(II corresponding crown ether crystal curves datolite decomposition decrease determined dimers electron energy English Translation Copyright enthalpies experimental extraction fluorides formation frequencies H₂O hafnium Hayka/Interperiodica Publishing Russia heating HF MP2 HF hydrogen bonds increase Inorg Inorganic interaction ions kcal/mol Khim kJ/mol Koord lanthanide ligand lithium macrocycle melt metal method mixture mol/l Moscow Neorg nitrate Original Russian Text oxide oxygen oxygen atoms phase phosphate plexes podands porphyrin potassium protons range ratio reaction Russia Received Russian Text Copyright salts samples sodium solid solutions solu solubility spectra spectrum stability structure studied synthesis Table temperature thermal tion ture unit cell parameters values vibrations water molecules X-ray diffraction X-ray powder diffraction zirconium