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Other intramonomer bands

Typical average wavenumbers v of centres of various stretching and bending bands of isolated free X-H groups when they do not establish H-bonds (second column) and their shifts Sv after establishment of an H-bond (column 3) [Pg.99]

A positive shift indicates a higher value for the wavenumber of the centre of the band in X-H Y. [Pg.99]

A negative shift indicates a lower value for the wavenumber of the centre of the band in X-H 0=C. For car-boxylate ( ) the value v is that of the centre of the C=0- - band of COO in sodium hyaluronate that accepts one H-bond in its C=0 group and dv is the shift after acceptation of a second H-bond in the same C=0 group. [Pg.99]

1682cm in Raman (38) we deduce that = 1707cm . The shift of the centre of [Pg.103]


Intramonomer bands other than are also sensitive to H-bonds, although in a much less spectacular way. This sensitivity proves to be most useful in chemistry and biology, and, as will be seen in the case of the H2O molecule, allows precise measurements of the number of H-bonds from which much structural and dynamic information can be obtained. It will prove useful to follow the development of the H-bond network of a macromolecule during hydration (Ch. 10). In physics and chemistry, the hypersensitive band ensures the... [Pg.110]


See other pages where Other intramonomer bands is mentioned: [Pg.98]    [Pg.111]    [Pg.98]    [Pg.111]    [Pg.218]    [Pg.221]    [Pg.107]    [Pg.169]   


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