title: Aminotroponiminate calcium and strontium complexes.
abstract: Heteroleptic aminotroponiminate complexes of calcium and strontium have been prepared. The monomeric calcium complex [((iPr)2ATI)CaI(THF)3] 1 ((iPr)2ATI = N-isopropyl-2-(isopropylamino)troponiminate) and the corresponding dimeric strontium compound [( (iPr)2ATI)SrI(THF)2]2 2 were obtained by reaction of [((iPr)2ATI)K] and MI2. Whereas the mixed ligand compound of composition [((iPr)2ATI)Ca(iPrAT)]2 3 (iPrAT = 2-(isopropylamino)troponate) was not obtained via a salt metathesis but by reaction of [Ca(N(SiMe3)2)2(THF)2] with ( (iPr)2ATI)H and (iPrAT)H, the diphosphanylamido complex [( (iPr)2ATI)Ca((Ph2P)2N)(THF)2] was obtained by reaction of CaI2 with the potassium compounds [( (iPr)2ATI)K] and [K(THF)n][N(PPh2)2]. The single crystal X-ray structures of all compounds were established and the latter compound shows a eta2-coordination mode of the ligand via the nitrogen and one phosphorus atom.
authors.affiliation: Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrabe 34-36, 14195, Berlin, Germany.
authors.forename: Simmi
authors.initials: S
authors.lastname: Datta
authors.forename: Michael T
authors.initials: MT
authors.lastname: Gamer
authors.forename: Peter W
authors.initials: PW
authors.lastname: Roesky
mesh_terms: D002118:Calcium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007097:Imines / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D013324:Strontium / Q000737:chemistry*; D014334:Tropolone / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: D007097:Imines; D009942:Organometallic Compounds; C523247:aminotroponiminate; D014334:Tropolone; D002118:Calcium; D013324:Strontium