摘要:The syntheses of new BEDT-TTF derivatives are described. These comprise BEDT-TTF with one ethynyl group (HC≡C-), with two (<i>n</i>-heptyl) or four (<i>n</i>-butyl) alkyl side chains, with two <i>trans</i> acetal (-CH(OMe)<sub>2</sub>) groups, with two <i>trans</i> aminomethyl (-CH<sub>2</sub>NH<sub>2</sub>) groups, and with an iminodiacetate (-CH<sub>2</sub>N(CH<sub>2</sub>CO<sub>2</sub><sup>−</sup>)<sub>2</sub> side chain. Three transition metal salts have been prepared from the latter donor, and their magnetic properties are reported. Three <i>tris</i>-donor systems are reported bearing three BEDT-TTF derivatives with ester links to a core derived from benzene-1,3,5-tricarboxylic acid. The stereochemistry and molecular structure of the donors are discussed. X-ray crystal structures of two BEDT-TTF donors are reported: one with two CH(OMe)<sub>2</sub> groups and with one a -CH<sub>2</sub>N(CH<sub>2</sub>CO<sub>2</sub>Me)<sub>2</sub> side chain.