Premium
Cover Picture: Occurrence of Difluorine F 2 in Nature—In Situ Proof and Quantification by NMR Spectroscopy (Angew. Chem. Int. Ed. 31/2012)
Author(s) -
Schmedt auf der Günne Jörn,
Mangstl Martin,
Kraus Florian
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201204821
Subject(s) - fluorite , spectroscopy , cover (algebra) , fluorine , nuclear magnetic resonance spectroscopy , in situ , chemistry , fluorine 19 nmr , mineral , mineralogy , physics , stereochemistry , organic chemistry , engineering , mechanical engineering , quantum mechanics
The Most Reactive Element fluorine, was long thought not to occur in nature as F 2 . In their Communication on page 7847 ff., F. Kraus and co‐workers present first direct evidence from in situ NMR spectroscopy that difluorine is included in the black fluorite “antozonite”, a mineral found close to Wölsendorf, Germany. The picture shows elemental fluorine, “antozonite” (CaF 2 ), and the town close to where the mineral was found. (The photograph of Wölsendorf was provided by Alois Laumer.)