THE INFRARED-ABSORPTION AND ELECTRON-SPIN-RESONANCE OF (MT)2(TCNQ)3.2H2O

Infrared absorption and electron spin resonance studies are presented for (MT)2(TCNQ)3 . 2 H2O. It is shown that the IR spectrum of the salt is dominated by the A(g) modes of TCNQ activated by electron molecula r vibration (e-mv) coupling; the coupling in (MT)2(TCNQ)3 . 2 H2O is s tronger than the coupling in other trimerized TCNQ salts. The donor vi brations are particularly susceptible to the temperature variation, wh ich reflects the T-evolution of the hydrogen bonds. From the ESR study it follows that the spin interactions in (MT)2(TCNQ)3 . 2 H2O are of one-dimensional character.