Carvedilol dihydrogen phosphate hemihydrate: a powder studyстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:In the cation of the title compound [systematic name: 3-(9H-carbazol-4- yloxy)-2-hydroxy-N-[2-(2-methoxyphenoxy)ethyl]-propan-1-aminium dihydrogen phosphate hemihydrate], C24H27N2O4+center dot H2PO4-center dot 0.5H(2)O, the mean planes of the tricyclic ring system and the benzene ring form a dihedral angle of 87.2 (2)degrees. In the crystal structure, the solvent water molecule is situated on a twofold rotation axis linking two cations via OH center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds. The anions contribute to the formation O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds between the anions and cations, which consolidate the crystal packing.