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1 -1 -1 -1 1 When the specimens are heated the intensities of the bands at 352 , 622 , and 722 cm- ' ( K + salt ) or 342 , 580 , and 678 cm-- ( Rb + salt ) decrease with time and after 3 h of this treatment the bands have disappeared .
1 -1 -1 -1 1 When the specimens are heated the intensities of the bands at 352 , 622 , and 722 cm- ' ( K + salt ) or 342 , 580 , and 678 cm-- ( Rb + salt ) decrease with time and after 3 h of this treatment the bands have disappeared .
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On the other hand , the three bands can be assigned to both a transfer of electron density from the ligand to the ... Free bipy in the crystal and in solution has the trans- The band at 1050 cm ' in the Raman spectra of the nitrate ...
On the other hand , the three bands can be assigned to both a transfer of electron density from the ligand to the ... Free bipy in the crystal and in solution has the trans- The band at 1050 cm ' in the Raman spectra of the nitrate ...
Trang 1136
This region of the spectra of crown ethers contains Vas ( COC ) bands which are sensitive to the conformation of the ethylene glycol units present in the macrocycle . According to correlations for benzo - crown ethers a Vas ( COC ) band ...
This region of the spectra of crown ethers contains Vas ( COC ) bands which are sensitive to the conformation of the ethylene glycol units present in the macrocycle . According to correlations for benzo - crown ethers a Vas ( COC ) band ...
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according acid active addition analysis angles anion apparently aqueous atoms bands bond calculated carried cations characteristic Chem chemical Chemistry chloride complexes components composition compounds concentration constant containing coordination copper corresponding crystal crystallisation curves decomposition decrease dependence described determined distances effect electron energy English translation equilibrium ether experimental extraction Figure formation formed given gives heating hydrate hydrogen increase indicates infrared Inorg ions Khim Khimii leads ligand lines mass materials measured metal method mixture molecules Moscow Neorg observed obtained oxide oxygen parameters phase points positions possible prepared present properties published range ratio reaction References region respectively ring salt shows similar sodium solid solubility solution space group specimens spectra spectrum stability structure studied synthesis Table takes temperature thermal translation in Russ values X-ray diffraction