| タイトル | Correlation of Spectral and Electrochemical Properties of a Series of Ferrocene Derivatives |
| 本文（外部サイト） | http://hdl.handle.net/2060/20160009768 |
| 著者（英） | Hepp, Aloysius F.; Wrighton, Mark S. |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2016-07-01 |
| 言語 | eng |
| 内容記述 | Charge-transfer-to-solvent (CTTS) bands are observed in the UV/VIS spectra of a series of ferrocene derivatives (ferrocene; 1,1'-dimethyl; 1,2,3,4,5-pentamethyl; 1,2,3,4,l',2',3',4'-octamethyl; and decamethyl) by the addition of increasing amounts of CCl4 to ethanol solutions. A linear correlation (slope = 8540 cm-1/V) was found between the redox potential and the energy of the CTTS band, consistent with electrochemical and photochemical oxidation by removal of an electron from the same molecular orbital. Inclusion of literature data for ruthenocene and [(5-C5H5)Fe(CO)]4 results in a line with a slope of 8140 cm-1/V, within 1 percent of the wavenumber to electron volt conversion factor. Calculation of association constants (K) shows a slight decrease (1.2 to 0.7 mole fraction-1) as the bulkiness of the cyclopentadienyl ring increases, consistent with either a steric or a repulsive electronic effect. The extinction coefficient of the CTTS absorption was constant at approximately 1700/M/cm. |
| NASA分類 | Energy Production and Conversion; Inorganic, Organic and Physical Chemistry |
| レポートNO | NASA/TM-2016-219106
Paper INOR-494
E-19232
GRC-E-DAA-TN31190 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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