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The nitro group absorption is rep- resented by strong antisymmetric ( 1560 cm - 1 ) and sym- metric ( 1350 cm - 1 ) stretching vibration bands . The absorption band at 1400 cm1 corresponds to NH vibrations .
The nitro group absorption is rep- resented by strong antisymmetric ( 1560 cm - 1 ) and sym- metric ( 1350 cm - 1 ) stretching vibration bands . The absorption band at 1400 cm1 corresponds to NH vibrations .
Trang 286
There are bands due to the vibrations of carbonate groups : a strong band appearing as a doublet at 1420 and 1450 cm1 , characteristic of basic carbonates , and a medium - intensity band at 880 cm - 1 [ 6 ] . The stretching and bending ...
There are bands due to the vibrations of carbonate groups : a strong band appearing as a doublet at 1420 and 1450 cm1 , characteristic of basic carbonates , and a medium - intensity band at 880 cm - 1 [ 6 ] . The stretching and bending ...
Trang 475
Therefore , it appears likely that the bands observed at 400 to 700 and 200 to 300 cm - 1 are due to stretching and bending vibrations of the fluoroniobate ion , respectively . The bands below 200 cm1 corre- spond to vibrations of the ...
Therefore , it appears likely that the bands observed at 400 to 700 and 200 to 300 cm - 1 are due to stretching and bending vibrations of the fluoroniobate ion , respectively . The bands below 200 cm1 corre- spond to vibrations of the ...
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Synthesis and Magnetic Properties of a Complex Oxide Ca3Cuo 5Ni0 5MnO6 | 7 |
Thermal Dissociation of LnMn2O5 Ln Y Pr Nd Sm Lu in | 13 |
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