A Hexanuclear Niobium Cluster Compound With Intra‐Cluster Chelate Ligands: [Nb6(OC2H4NH2)12]I3. Issue 70 (20th November 2018)

• Record Type: Journal Article
• Authors: Weiß, Daniel Holger; Köckerling, Martin
• Is Part Of: Chemistry. Volume 24:Issue 70(2018)
• Page Start: 18613
• Page End: 18617
• Publication Date: 2018-11-20
• Subjects: aminoethanolato ligand -- cluster compound -- cluster oxidation -- niobium -- structure elucidation; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201804344
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: From the reaction of [Nb6 I11 ] with 2‐aminoethanol in pyridine the cluster compound [Nb6 (OC2 H4 NH2 )12 ]I3 has been obtained and the single‐crystal X‐ray structure determined. It represents the first example of a group VB metal cluster compound with hexanuclear, octahedral metal atom core, which carries intra ‐cluster chelate ligands. With the formation of this unprecedented cluster cation we report for the first time a transformation of a 6–8 to a 6–12 type cluster unit. The formation of the cluster cation goes along with a one‐electron oxidation of the cluster starting material. Furthermore, it adds a second entry to the so far very small group of M6 cluster compounds with organic ligands on the inner cluster sites. Abstract : Metal atoms in handcuffs : Within the large family of cluster compounds with metal atom octahedra and organic ligands on the exo ‐sites the first example with a intra‐cluster chelate ligand is described.