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Acridine form IX.

ABSTRACT: We report a new polymorph of acridine, C₁₃H₉N, denoted form IX, obtained as thin needles by slow evaporation of a toluene solution. The structure was solved and refined from powder X-ray data. The structures of five unsolvated forms were previously known, but this is only the second with one mol-ecule in the asymmetric unit. The melting point [differential scanning calorimetry (DSC) onset] and heat of fusion are 108.8?(3)?°C and 19.2?(4)?kJ?mol^-1, respectively.

SUBMITTER: Stephens PW

PROVIDER: S-EPMC6509685 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Acridine form IX.

Stephens Peter W PW Schur Einat E Lapidus Saul H SH Bernstein Joel J

Acta crystallographica. Section E, Crystallographic communications 20190326 Pt 4

We report a new polymorph of acridine, C13H9N, denoted form IX, obtained as thin needles by slow evaporation of a toluene solution. The structure was solved and refined from powder X-ray data. The structures of five unsolvated forms were previously known, but this is only the second with one mol-ecule in the asymmetric unit. The melting point [differential scanning calorimetry (DSC) onset] and heat of fusion are 108.8 (3) °C and 19.2 (4) kJ mol-1, respectively. ...[more]

PMID: 31161062

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