First example of an infinite polybromide 2D-network

The reaction of the neutral dithiolene [Pd(Et2timdt)2](Et2timdt = formally monoreduced diethylimidazolidine-2,4,5-trithione) with an excess of Br2 yielded few crystals of [1^Et·2Br]^2+(Br–)2(Br2)3 as a by-product (1^Et= 4,5,9,10-tetrathiocino-[1,2-b:5,6-bʹ]-1,3,6,8-tetraethyl-diimidazolyl-2,7dithione); X-ray diffraction analysis showed that this compound represents the first example of a polybromide 2D-network templated by [1^Et· 2Br]^+2 dications, and featuring all the Br–Br distances shorter than those found in solid state bromine.