Abstract
The electrochemical properties of a series of TCNQ (TCNQ = 7,7,8,8-tetracyano- p-quinodimethane) lanthanide complexes have been investigated for the first time. Cyclic voltammograms and differential pulse voltammograms of this series of TCNQ lanthanide complexes show a reversible one-electron oxidation and a reversible one-electron reduction within the electrochemical window of CH 3CN. Their electrochemical HOMO−LUMO gap and reversibility are examined. Three new TCNQ lanthanide complexes, namely, [Ln 2(TCNQ) 4(H 2O) 12][2TCNQ]· xMeOH· yH 2O [Ln = Ce ( 1, x = 1, y = 3), Nd ( 2, x = 2, y = 4), Sm ( 3, x = 2, y = 3)] have been characterized. X-ray single-crystal diffraction reveals that 1− 3 are ion complexes with one dimeric cation and two TCNQ − counterions.
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