Reactions of pentafluorophenyl germanium hydrides with nickelocene

• Published in: Journal of organometallic chemistry Vol. 429; no. 1; pp. 13 - 26
• Main Authors: Pankratov, Leonid V., Nevodchikov, Vladimir I., Zakharov, Lev N., Bochkarev, Mikhail N., Zdanovich, Irina V., Latyaeva, Viktoria N., Lineva, Alla N., Batsanov, Andrey S., Struchkov, Yury T.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 12.05.1992; Elsevier Science
• Subjects: Chemistry; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Organic chemistry; Organic compounds; Organometalloidal and organometallic compounds; Physics; Preparations and properties; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Transition metals derivatives; Organogermyl complex; Germanium Organic compounds; Mu complex; Metal metal bond; Nickel Organic compounds; Ion pair; Dinuclear complex; Hapto complex; Organogermanium hydride; Multilayered sandwich compound; Transition metal Complexes; Metallocene
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/0022-328X(92)83315-9

Both (C 6F 5) 2Ge(H)Ge(H)(C 6F 5) 2 and (C 6F 5) 2GeH 2 react with bis-(cyclopentadienyl)nickel to form a novel germylnickel cluster [(C 6F 5) 2GeNiCp] 2. The molecule of the complex contains a butterfly-like Ge 2Ni 2 core with strong Ge-Ni (2.257 Å) and weak NiNi (2.492 Å) bonds. The tetrahedral angle between its Ni 2Ge wings is 117.6°. Interaction of nickelocene with tris(pentafluorophenyl)germane yields 30% of the ionic complex {[(C 6F 5) 3Ge] 2NiCp} −[CP 3Ni 2] +. The X-ray diffraction analysis has shown that the structure of the [(C 6F 5) 3Ge] 2NiCp − anion contains the 3-membered Ge-Ni-Ge chain. The NiGe bond lengths are 2.265 and 2.263 Å, the Ge-Ni-Ge angle is 127.3°. The CP 3Ni 2 cation is a triple-decker sandwich with eclipsed conformation of the Cp-rings.