| Autor: |
Grogger, Christa, Rautz, Hermann, Stüger, Harald |
| Zdroj: |
Chemical Monthly / Monatshefte für Chemie; Apr2001, Vol. 132 Issue 4, p453-464, 12p |
| Abstrakt: |
The dipolar cyclohexasilanes 1-ferrocenyl-4-((2,2-dicyanoethenyl)-phenyl)-decamethylcyclohexasilane ( 1) and 1-ferrocenyl-3-((2,2-dicyanoethenyl)-phenyl)-decamethylcyclohexasilane ( 2) were synthesized by conventional methods and fully characterized. Electronic absorption spectroscopic studies suggest increased σ-π interactions in the cyclohexasilane derivatives when compared to their open-chained analogues. Small but noticeable electron transmission effects via the cyclohexasilanyl group can be derived from cyclic voltammetric data. Significantly increased values of the quadratic hyperpolarizabilities β in solution for 1 and 2 are shown by preliminary results of measurements using the EFISH technique. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink