Synthesis, structure and electrochemistry of [Pd([9]aneNS2)2]-[BF4]2([9]aneNS2= 1,4-dithia-7-azacyclononane)

Abstract

The centrosymmetric purple-blue complex [Pd([9]aneNS₂)₂][BF₄]₂([9]aneNS₂= 1,4-dithia-7-azacyclononane) shows a primary N₂S₂ co-ordination, Pd–N(1) 2.081(9), Pd–S(7) 2.322(3)Å, with longrange interactions to the two remaining S donors, Pd ⋯ S(4) 3.011(3)Å; [Pd([9]aneNS₂)₂]²⁺ shows two one-electron oxidations at ¹E_½=+0.43 V and ²E_½=+0.84 V vs. ferrocene–ferrocenium assigned to Pd^III–Pd^III and Pd^III–Pd^IV couples respectively.