Synthesis, oxidation and protonation of octamethyl-1,1′-bipyrrole

(Electro)chemical Oxidation of 6,13‐Bis[tri(isopropyl)silylethynyl]pentacene to its Radical Cation and Dication

“…Electrolysis on the preparative scale was performed in ag lass cell equipped with as topcock and four ground-glass joints (NS 14). [84,85] The working, counter,a nd double-reference electrodes were fitted into the glass joints and the cell was connected to a potentiostat (Jaissle, 1001 T-NC). The working and counter electrodes were nets of Pt/Ir (90/10) wire (Degussa).…”

Synthesis, Structure, and Bonding in Polyiodide and Metal Iodide−Iodine Systems

“…In [Mg(H 2 O) 6 ]I 8 square nets are formed, while in [Pd(NH 3 ) 4 ]I 8 broken nets are formed since only one of the triiodide ions is involved in the chain formation 129a. A similar chain structure is also found in [C 16 H 25 N 2 ]I 4 , but here the connection is made by only one terminal iodine atom of each triiodide ion . The Z-shaped octaiodides in [Co(Ur) 6 ]I 8 form a ring architecture ( 3.25 ) through the interaction of both the terminal iodide atoms of the triiodide ions .…”

“…129a A similar chain structure is also found in [C 16 H 25 N 2 ]I 4 , but here the connection is made by only one terminal iodine atom of each triiodide ion. 139 The Z-shaped octaiodides in [Co(Ur) 6 ]I 8 form a ring architecture (3.25) through the interaction of both the terminal iodide atoms of the triiodide ions. 140 The contact distances between the ions are 3.45 and 3.93 Å.…”

Bis(methyltri-o-tolylphosphonium) octaiodide

“…In all other cases where interionic interactions occur between I 8 2À units, only the I 3 À ions are involved. When only one iodine in each I 3 À ion takes part in long-range interactions, a helical (Horn et al, 2001) or branched (Kuhn et al, 2000) chain is produced. When both terminal I 3 À iodines are employed, puckered sheets result (Grafe-Kavoosian et al, 1998;Kuz'mina et al, 2000).…”