Preparation and crystal structure determination of triphenylmethanide cesium · 1.5 dimethoxyethane and of phenothiazine cesium diglyme

Abstract Reaction of triphenylmethane with cesium metal in dimethoxyethane (DME) or of phenothiazine in diglyme yields two organometallic cesium compounds as extremly air and moisture sensitive single crystals. In triphenylmethanide cesium · 1.5 DME, the counter cations form two structurally different contact ion pairs to symmetry-related triphenylmethanide anions and are solvated in addition by two crystallographically independent ether solvent molecules, which partly connect the resulting polymeric chains. In phenothiazine cesium diglyme, each counter cation is surrounded by three symmetry-related phenothiazine anions and one diglyme molecule predominantly via their oxygen, nitrogen and sulfur centers and again infinite polymer chains are formed. All structural results are discussed based on literature data of analogous complexes.