Interaction of molecular SiS with silver atoms in an argon matrix: IR spectrum and ab initio rationalization
✍ Scribed by Ralf Köppe; Hansgeorg Schnöckel; Claude Jouany; Florent Xavier Gadea; Jean Claude Barthelat
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 224 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1042-7163
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Co‐condensation of silver atoms and SiS in an argon matrix leads to the formation of Ag(SiS). The IR spectrum can be interpreted in two different ways: Isotopic shifts (^28^Si/^29^Si, ^28^Si/^30^Si, ^32^S/^34^S) imply a side‐on coordination of SiS to silver. On the other hand, the SiS frequency and the isotopic shifts can be assigned to an isolated SiS^−^ molecule. The SiS force constant is reduced from 5.0 mdyn/Å in free SiS to 3.9 mdyn/Å in AgSiS. Ab initio investigations confirm the formation of an ion pair Ag^+^(SiS)^−^, admitting some electron delocalization.