2-{[2,2-Bis(diethyl­amino)­ethan-2-ylium­thio­yl]sulfan­yl}-1,1-bis­(diethyl­amino)­ethyl­ium bis­(perchlorate)

The title salt, C(20)H(42)N(4)S(2) (2+)·2ClO(4) (−), was obtained from the reaction of bis­(diethyl­amino)­carbeniumdithio­carboxyl­ate, (Et(2)N)(2)C(2)S(2), with Fe(ClO(4))(2)·6H(2)O in CH(2)Cl(2). The title compound, in which one of the S atoms of (Et(2)N)(2)C(2)S(2) is bound to a 1,1-bis­(diethyl­amino)­ethane moiety, has two carbenium C atoms, and the charge compensation is provided by two perchlorate anions. The N(2)C—CS(2) bond length is 1.512 (4) Å, corresponding to a C—C single bond, and the dihedral angle between N(2)C– and –CS(2) planes [72.0 (2)°] is smaller than that of (Et(2)N)(2)C(2)S(2) [82.0 (1)°]. The crystal structure features C—H⋯S hydrogen bonds.