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Journal articles
Halogen-free GeO2 conversion electrochemical reduction vs. complexation in (DTBC)(2)Ge[Py(CN)(n)] (n=0...2) complexes
Abstract : 3,5-di-tert-Butylcatecholate (DTBC) germanium complexes (DTBC)2Ge[Py(CN)n]2 (n = 0…2) have been synthesized from GeO2, 3,5-di-tert-butylcatechol and cyano-substituted pyridines Py(CN)n and characterized by elemental analysis, NMR, IR and UV-VIS spectroscopy. The structure of 1 (with 4-cyanopyridine) has been determined by X-ray single crystal analysis. UV-VIS spectra have shown that these complexes are stable in CH3CN, toluene and CH2Cl2 solutions; in contrast, they are rapidly decomposed by dimethylformamide and tetrahydrofuran. Complexes 1 and 2 (with 4-cyano and 3-cyanopyridine) are electrochemically reducible in toluene/1 M Bu4NPF6 at E = -1.3…-1.7 V vs. AgCl. The quantum-chemical study of these complexes is in accordance with the unsuccessful attempts to obtain analogous derivatives with 2-cyanopyridine and 2,6-dicyanopyridine.
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01973912
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, January 8, 2019 - 3:05:37 PM
Last modification on : Friday, July 10, 2020 - 4:10:35 PM
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, January 8, 2019 - 3:05:37 PM
Last modification on : Friday, July 10, 2020 - 4:10:35 PM