Characterization of cyclotriveratrylene inclusion compounds by means of solid state13C NMR
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Solid inclusion compounds of cyclotriveratrylene (CTV) with benzene, toluene, acetone, tetrahydrofuran, acetic acid and chloroform, as well as two hydrated forms, were prepared and characterized by solid state13C NMR. The inclusion process for CTV appears to be quite selective, and in some instance depends critically on the presence or absence of water. A number of different structural types are indicated by the solid state13C NMR splitting paterns. For the guests listed above,1H NMR in solution indicated a guest to host ratio close to 0.5, except for chloroform, for which the ratio is closer to 2.
Key wordscyclotriveratrylene 13C NMR magic angle spectra clathrate carbon chemical shift
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