Malcolm G. Miles

Classification of electrically conducting ‘electron-transfer’ compounds by crystal structure

Organic and metal-organic electron-transfer solids can be classified by crystal structure, those known to date being divided intohomosoric, in which identical molecules stack infinitely,heterosoric, in which different molecules stack alternately, andnonsoric, non-stacked types. Only homosoric solids have high electrical conductivity.

Δ2,2′-Bis-(4,5-dicyano-1,3-dithiolidene)

Δ2,2′-Bis-(4,5-dicyano-1,3-dithiolidene) is prepared quantitatively by the reaction of trimethyl phosphite with 4,5-dicyano-1,3-dithiol-2-one.

Electrically Conducting Salts of 11, 11, 11 12, 12-Tetracyano-2,6-Naphthoquinodimethane (TNAP)

Abstract The electron-accepting molecule 11,11,12,12-tetracyano-2,6-naphthoquinodimethan(TNAP) forms electrically-conducting solid salts similar in conductivity to those formed by the related TCNQ. Salts of TNAP with both metallic (Na, K, Tl, Cu) and organic (e.g., methyltriphenylphosphonium, N-methylphenazinium) counter-ions were prepared and characterized, and their electrical conductivities measured. The activation energies of Ph3MeP(TNAP)2, and similar TCNQ salts are related to a structural parameter. The N-methylphenazinium salt was prepared in two allotropic forms. Improvements in the reported TNAP synthesis are described.