The crystal structure of copper(II) bromide bis(dimethylsulphoxide)

✍ Scribed by R.D. Willett; F.H. Jardine; S.A. Roberts

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 431 KB
• Volume: 25
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)95696-2

✦ Synopsis

CH&SO) &uBrz is isomorphous with the corresponding chloride complex. It belongs to the orthorhombic space group Pnma and contains 4 formula groups per unit cell. The dimensions of the unit cell at ca. 29X are a = 8.2.57(2)& b = 11.772-(214 c = 11.749(2/A. The copper ion assumes an intermediate five-coordinate geometry with three bramine atoms equatorial and two oxygen atoms axial. The equatorial angles are Br(I)--Cu-Br(2) = 146.13" and Br(2)-Cu-Br(2) = 110.21°, and the axial angle O(l)-Cu-O(l') is 173.99". The bond lengths are Cu-Br(I) = 2.45I(4)& Cu-Br(2) = 2.429(4)& Cu-Br(2') = 2.777(4)A and Cu-0 = 1.962(9)& The copper coordination geometry is largely determined by packing of the DMSO groups.