Oxochloroselenate(IV) with Incorporated {Cl2 }: The Case of Strong Cl⋅⋅⋅Cl Halogen Bonding.
Andrey N UsoltsevNikita A KorobeynikovBoris A KolesovAlexander S NovikovPavel A AbramovMaxim N SokolovSergey A AdoninPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2021)
Reaction of SeO2 , tetramethylammonium (TMA) chloride, aqueous HCl and Cl2 yields oxochloroselenate with incorporated Cl2 units, TMA3 {[Se2 O2 Cl7 ](Cl2 )}. The main feature of this compound is the strong (up to 3.5 kcal mol-1 , according to DFT calculations) Cl⋅⋅⋅Cl bonding, which is also detected by Raman spectroscopy.