“…The peroxo-bonds O-O in symmetrical complexes are the same [1.461(3) Å in spiroendoperoxide of (AP-iPr,iPr)SbPh 3 and 1.466(2) in spiroendoperoxide of (APMe,Me)SbPh 3 ], [7,8b] and endoperoxide 3,3-dihidro-5,5-dimethyl-3,3,3-triphenyl-1,2,4,3-trioxastibolane has an O-O distance of 1.468 Å. [11] The interaction of dioxygen with transition metal complexes is well known. [12] Some of o-iminosemiquinonato/oamidophenolato transition metal complexes were also shown to react with molecular oxygen to form different derivatives.…”