First Radical Cation Salts Based On Dibenzotetrathiafulvalene (Dbttf) With Metallacarborane An Ions: Synt Hesis, Structure, Properties

The new radical cation salts based on transition metal bis(dicarbollides) with dibenzotetrathiafulvalene (DBTTF) donors (DBTTF)[3,3'-Fe(1,2-C2B9H11)(2)] ( 1 ) and (DBTTF)(2)[3,3'-Cr(1,2-C2B9H11)(2)] ( 2 ) were synthe-sized and their crystal structures were determined by single crystal X-ray diffractions. The electric conductivity measurements revealed that these compounds are semiconductors at room temperature and the conductivity of (DBTTF)(2)[3,3'-Cr(1,2-C2B9H11)(2)] is similar to 500 times higher than that of its BEDT-TTF analogue. (c) 2020 Elsevier B.V. All rights reserved.