I have found a publication about the hydride character. My question is about Et3SiH, as you can see in the file the DG value of HSiEt3 is 90 Kcal/mol, I have found a pH for Et3SiH bout 5. if we compare BH4- to Et3SiH the difference is 40 Kcal/mol , does this means Et3SiH has a hard difficulty to give its hydride?
Anaëlle
In my experience, triethylsilane itself cannot serve as a "hydride" source without some additional activator (TFA, Pd/C, Fe(acac)3, InCl3,etc.).
By the way, I could not open your attached file. I recommend uploading a PNG file image instead.
I make the link directly perhaps it's better. In fact, I have used Et3SiH for the formation of Piers' Borane according to the reaction B(C6F5)3 + SiHEt3 and there is a ligand exchange and we obtain HB(C6F5)2 + SiEt3(C6F5). So the first step is the coordination of the hydrure to the borane . But they speak about the hydride affinity but in my Et3SiH spectra the hydride is about 4ppm!
http://pubs.acs.org/doi/full/10.1021/om5011512
- Badges
- Science topic
- Similar topics
- Linguistics
- Composition Studies
- Publication