Charge–transfer complexes of bis-1,2,5-thiadiazolo-tetracyano–quinodimethan (BTDA-TCNQ) with various donors were prepared. The 1:1 complex of dimethyldihydrophenazine with BTDA-TCNQ was found to be highly conductive. Factors governing the conductivities were investigated.
Novel Intermolecular Heterocycle Exchange Reaction of Cyclohepta[<i>b</i>][1,4]benzoxazines and Their<i>S</i>-Analogs with 1,2-Bifunctional Reagents
作者:Tetsuo Nozoe、Kimio Shindo、Sumio Ishikawa
DOI:10.1246/cl.1988.1593
日期:1988.10.5
The benzoxazine and the benzothiazine moieties of cyclohepta[b][1,4]benzoxazines and their S-analogs were easily exchanged with o-aminobenzenethiol, o-phenylenediamine and other related 1,2-bifunctional reagents in ethanol. The exchange of the two fused heterocycles of a tropylium compound is also described.
Heterocyclic cations containing a tropylium ion skeleton form 1:1 simple salts with tetracyanoquinodimethan anionradical, which show good conductivities and novel values of nitrile stretching frequencies. The reduction potentials of cations are related to the reactivities of the salt formation as well as the conductivities of the salts.