title: A new double-cube nitride complex containing titanium and potassium.
abstract: The reaction of the imide-nitride complex [{Ti(η(5)-C(5)Me(5))(μ-NH)}(3)(μ(3)-N)] with potassium iodide in pyridine at room temperature affords the adduct di-μ-iodido-1:1'κ(4)I-bis{tri-μ(3)-imido-1:2:3κ(3)N;1:2:4κ(3)N;1:3:4κ(3)N-μ(3)-nitrido-2:3:4κ(3)N-tris[2,3,4(η(5))-pentamethylcyclopentadienyl](pyridine-1κN)-tetrahedro-potassiumtrititanium(IV)}, [K(2)Ti(6)(C(10)H(15))(6)I(2)N(2)(NH)(6)(C(5)H(5)N)(2)] or [(C(5)H(5)N)(μ-I)K{(μ(3)-NH)(3)Ti(3)(η(5)-C(5)Me(5))(3)(μ(3)-N)}](2). The crystal structure contains two [KTi(3)N(4)] cube-type units held together by two bridging I atoms. There is a centre of inversion located in the middle of this unprecedented discrete K(2)I(2) unit. The geometry around K is best described as distorted trigonal prismatic, with three imide groups, two bridging I atoms and one pyridine ligand.
authors.affiliation: Departamento de Química Inorgánica, Universidad de Alcalá, Campus Universitario, ES28871 Alcalá de Henares, Madrid, Spain.
authors.forename: Avelino
authors.initials: A
authors.lastname: Martín
authors.forename: Miguel
authors.initials: M
authors.lastname: Mena
authors.forename: Adrián
authors.initials: A
authors.lastname: Pérez-Redondo
authors.forename: Carlos
authors.initials: C
authors.lastname: Yélamos