Chemistry Letters, Vol.30, No.3, 208-209, 2001
A new organic anion consisting of the TEMPO radical for organic charge-transfer salts: 2,2,6,6-tetramethylpiperidinyloxy-4-sulfamate (TEMPO-NHSO3-)
The title organic anion was prepared as its tetraphenylphosphonium salt, (Ph4P)(TEMPO-NHSO3), which reacted with (TTF)(3)(BF4)(2) to give (TTF)(TEMPO-NHSO3), which shows the Curie-Weiss behavior (C = 0.360 emu K mol(-1) and theta = -0.52 K) with weak antiferromagnetic interaction. This magnetic behavior is found to be attributed to the TEMPO radical.