substituted tetrachalkogenfulvalene and procedures in their production.

摘要

Compounds of the formula I IMAGE (I) in which X1, X2 and X3, independently of one another, are S or Se, R1 and R2, independently of one another, are H, linear or branched C1-C18alkyl-X4- or R1 and R2 together are IMAGE in which X4 is S or Se, z is 0 and n is an integer from 2 to 6 or z is 1 and n is an integer from 1 to 4, R4 and R5, independently of one another, are H or C1-C6alkyl, and R3 is linear or branched C1-C12alkyl or phenyl. The compounds can be converted into unsymmetrically substituted chalcogenofulvalenes, from which electrically conducting charge-transfer complex salts can be prepared.