Charge transfer spectra of organometallic complexes—III. Energy contributions to the formation of a donor—acceptor complex and to the electron transfer in the interaction between trialkyltin iodides and iodine in carbon tetrachloride solutions
✍ Scribed by S. Hoste; G.G. Herman; W. Lippens; L. Verdonck; G. van der Kelen
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 684 KB
- Volume
- 41
- Category
- Article
- ISSN
- 1386-1425
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✦ Synopsis
The enthalpies of formation for charge transfer complexes of the type [R&1.1,] (R = CH3, C2F5, n-C3H,, n-&H,) have been measured by calorimetry. The data are analysed using Mulliken's resonance structure theory, to produce the different energy contributions to the formation ofand the charge transfer interaction in these products. The use of cyclic voltammetry and photoeleztron spectroscopy to assess the donor properties of R,SnI ligands is discussed.
Spectral measurements
Comments on the general methods used were reported previously [1], but the spectrophotometric method to obtain AH, i.e. the determination of K as a function of temperature, was also used for Et,SnI. The cell compartment of the spectrophotometer was thermostatedat 40,30,20, lOand 4°C and the extinction coefficients of 12/CCl., solutions as a