Title

Synthesis and X-ray Structural Investigation of 1,3,5-tris[4-(2-propynyloxy)phenyl]benzene

Document Type

Article

Language

eng

Publication Date

9-1993

Publisher

Springer

Source Publication

Russian Chemical Bulletin

Source ISSN

1066-5285

Abstract

Synthesis and X-ray structural investigation of 1,3,5-tris[4-(2-propynyloxy)phenyl]benzene (1) were carried out. Compound1 is a trifunctional monomer for the synthesis of cross-linked polymers and a model of a section of polymeric network of this kind. In a crystal, the molecule of1 is located on the threefold symmetry axis and has a propeller-like conformation (the dihedral angle between the central and peripheral benzene rings is ∼35°). An essential feature of the crystal structure of1 is the proximity of the ethynyl groups of the neighboring molecules, which may be favorable to cyclotrimerization in the crystal. The spatial prerequisite to this process is the simultaneous rotation of the neighboring molecules1 about their symmetry axes by ∼10°. The displacements of the atoms in the reacting groups should amount to ∼1.6–1.8 Å.

Comments

Russian Chemical Bulletin, Vol. 42, No. 9 (September 1993): 1536-1539. DOI.

Sergey Lindeman was affiliated with Russian Academy of Sciences at the time of publication.

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