Oxochloroselenate(IV) with Incorporated {Cl2}: The Case of Strong Cl....Cl Halogen Bonding

Reaction of SeO2, tetramethylammonium (TMA) chloride, aqueous HCl and Cl-2 yields oxochloroselenate with incorporated Cl-2 units, TMA(3){[Se2O2Cl7](Cl-2)}. 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.

Automated summary

The main feature of this compound is the strong Se-Cl bonding, which is also detected by Raman spectroscopy. The energy level of the Se-Cl bond can reach up to 3.5 kcal/mol according to DFT calculations.