Mononuclear Alkali Metal Organoperoxides Stabilized by an NNNN-Macrocycle and Short Hydrogen Bonds from ROOH Molecules.
Hassan OsseiliKhai-Nghi TruongThomas P SpaniolDebabrata MukherjeeUlli EnglertJun OkudaPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2017)
A series of light alkali metal organoperoxides [MOOR] (M=Li, Na, K; R=tBu, CMe2 Ph) were isolated in mononuclear form, aided by the tetradentate and neutral NNNN-type macrocycle Me4 TACD (L; Me4 [12]aneN4 =1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclododecane) and strong hydrogen bonds from additional ROOH molecules. The Na and K compounds are characterized by short O-H⋅⋅⋅O contacts, in the case of the Na derivative as short as 2.41 Å.