1. Department of Chemistry, Laboratory of Organic Chemistry, University of Helsinki, FIN-00014, Finland
2. VTT Chemical Technology, VTT, FIN-02044, Finland
3. Department of Chemistry, Laboratory of Inorganic Chemistry, University of Helsinki, FIN-00014, Finland
4. The Finnish Research Project on the Verification of Chemical Disarmament, Department of Chemistry, University of Helsinki, FIN-00014, Finland