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Ethyl (E)-3-(anthracen-9-yl)prop-2-enoate.

ABSTRACT: In the asymmetric unit of the title compound, C19H16O2, there are two symmetry-independent mol-ecules (A and B) that differ in the conformation of the ester eth-oxy group. In the crystal, the mol-ecules form inversion dimers via pairs of C-H?O inter-actions. Within the dimers, the anthracenyl units have inter-planar distances of 0.528?(2) and 0.479?(2)?Å for dimers of mol-ecules A and B, respectively. Another short C-H?O contact between symmetry-independent dimers links them into columns parallel to [10-1]. These columns are arranged into (111) layers and there are ?-? stacking inter-actions [centroid-centroid distances = 3.6446?(15) and 3.6531?(15)?Å] between the anthracenyl units from the neighbouring columns. In addition, there are C-H?? inter-actions between the anthracenyl unit of dimers A and dimers B within the same column.

SUBMITTER: Bugenhagen B 

PROVIDER: S-EPMC3588290 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature

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Ethyl (E)-3-(anthracen-9-yl)prop-2-enoate.

Bugenhagen Bernhard B   Al Jasem Yosef Y   Hindawi Bassam Al BA   Al Rawashdeh Nathir N   Thiemann Thies T  

Acta crystallographica. Section E, Structure reports online 20121222 Pt 1

In the asymmetric unit of the title compound, C19H16O2, there are two symmetry-independent mol-ecules (A and B) that differ in the conformation of the ester eth-oxy group. In the crystal, the mol-ecules form inversion dimers via pairs of C-H⋯O inter-actions. Within the dimers, the anthracenyl units have inter-planar distances of 0.528 (2) and 0.479 (2) Å for dimers of mol-ecules A and B, respectively. Another short C-H⋯O contact between symmetry-independent dimers links them into columns paralle  ...[more]

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