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Chemical shielding anisotropy polymorphism

Another group of experiments correlates carbon isotropic shifts with anisotropic contributions from the same nuclei.122-125 The assignment power of these experiments stems from the fact that different types of carbons can have similar isotropic shielding but different anisotropic chemical shifts. Therefore, based on the magnitude of the chemical shift anisotropy, the carbons in question can be assigned. As an added advantage, the chemical shift anisotropy could, in many cases, be more sensitive than isotropic chemical shifts to structural variations between polymorphs. [Pg.62]


See other pages where Chemical shielding anisotropy polymorphism is mentioned: [Pg.193]    [Pg.88]    [Pg.60]    [Pg.68]    [Pg.69]    [Pg.137]    [Pg.144]    [Pg.78]    [Pg.129]    [Pg.131]    [Pg.70]    [Pg.81]   
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