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Updated: Jun 1, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
5,8-Dibromo-14,15,17,18-tetra-methyl-2,11-dithia-[3.3]paracyclo-phane
1Key Laboratory of Pesticides and Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China.
Abstract:
In the title mol-ecule [systematic name: 1(2),1(5)-dibromo-5(2),5(3),5(5),5(6)-tetramethyl-3,7-dithia-1,5(1,4)-dibenzenacyclooctaphane], C(20)H(22)Br(2)S(2), the distance between the centroids of the two benzene rings is 3.326 (4) Å, and their mean planes are almost parallel, forming a dihedral angle of 1.05 (7)°. The crystal packing exhibits no inter-molecular contacts shorter than the sum of van der Waals radii.
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