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2,3,5,6-Tetra-kis[3,5-bis-(trifluorometh-yl)phen-oxy]-2, 5-bis(dimethyl-amino)2,3,5,6-tetra-bora-1,4-dioxane diethyl ether 0.667-solvate

Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Professor Todd Marder


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The title compound, C36H26B4F24N2O6·0.667C4H10O, has centrosymmetric tetra-bora-dioxane mol-ecules, half each of three of these comprising the asymmetric unit together with a mol-ecule of diethyl ether. Disorder affects most of the CF3 groups and one ethyl group of the solvent mol-ecule. The B4O2 rings are approximately planar and contain two B atoms with trigonal geometry and two with distorted tetra-hedral geometry, the B - O bonds for the four-coordinate B atoms being longer than those for the three-coordinate B atoms. N - H⋯O hydrogen bonds link two of the crystallographically independent mol-ecules together in chains, while the third mol-ecule forms discrete trimolecular clusters with two solvent mol-ecules via N - H⋯O hydrogen bonds. This is the first crystallographically characterized example of a tetra-bora-dioxane mol-ecule containing both four- and three-coordinate B atoms. © International Union of Crystallography 2007.

Publication metadata

Author(s): Clegg W, Marder TB, Nlate S, Scott AJ

Publication type: Article

Publication status: Published

Journal: Acta Crystallographica Section C: Crystal Structure Communications

Year: 2007

Volume: 63

Issue: 10

Pages: 603-605

ISSN (print): 0108-2701

ISSN (electronic): 1600-5759

Publisher: Wiley-Blackwell Publishing, Inc.


DOI: 10.1107/S010827010703569X


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