Mercury-fluorine interactions: a matrix isolation investigation of Hg...F2, HgF2 and HgF4 in argon matrices.
Phys Chem Chem Phys
; 10(31): 4594-605, 2008 Aug 21.
Article
de En
| MEDLINE
| ID: mdl-18665309
ABSTRACT
HgF(2) and Hg have been trapped in dilute F(2)/Ar and neat F(2) matrices, subjected to UV-Vis and vac-UV photolysis and annealing, with the products identified by FTIR, UV-Vis-NIR and Hg L(3)-edge XAFS spectroscopic techniques. Whilst there was no convincing evidence for the formation of HgF(4) under our argon matrix isolation conditions, a new Hg...F(2) complex was identified and subsequent photolysis yielded HgF(2) very cleanly. Hg L(3)-edge EXAFS has provided the first experimental value of 1.94(2) A for the Hg-F bond length in HgF(2), which is in excellent agreement with the computational values incorporating relativistic effects.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Phys Chem Chem Phys
Sujet du journal:
BIOFISICA
/
QUIMICA
Année:
2008
Type de document:
Article
Pays d'affiliation:
Royaume-Uni