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9-(Dicyano-methyl-idene)fluorene-tetra-thia-fulvalene (1/1).


ABSTRACT: The title compound, C(16)H(8)N(2)·C(6)H(4)S(4), crystallizes with the fluorene derivative placed in a general position and two half tetra-thia-fulvalene (TTF) mol-ecules, each completed to a whole mol-ecule through an inversion center. The fluorene ring system is virtually planar (r.m.s. deviation from the mean plane = 0.027 Å) and the dicyano group is twisted from the fluorene plane by only 3.85 (12)°. The TTF mol-ecules are also planar, and their central C=C bond lengths [1.351 (8) and 1.324 (7) Å] compare well with the same bond length in neutral TTF (ca 1.35 Å). These features indicate that no charge transfer occurs between mol-ecules in the crystal; the compound should thus be considered a cocrystal rather than an organic complex. This is confirmed by the crystal structure, in which no significant stacking inter-actions are observed between mol-ecules.

SUBMITTER: Salmeron-Valverde A 

PROVIDER: S-EPMC3343914 | biostudies-literature |

REPOSITORIES: biostudies-literature

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