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  Elektronendichte-Verteilungen in Metallorganischen Verbindungen. Wechselnde Struktur- und Bindungsverhältnisse in dimeren metallorganischen Nickel-Hydriden mit Ionenpaar-Beziehungen zu den Hauptgrupppen-Metallen Natrium und Lithium

Goddard, R., Krüger, C., Pörschke, K.-R., & Wilke, G. (1986). Elektronendichte-Verteilungen in Metallorganischen Verbindungen. Wechselnde Struktur- und Bindungsverhältnisse in dimeren metallorganischen Nickel-Hydriden mit Ionenpaar-Beziehungen zu den Hauptgrupppen-Metallen Natrium und Lithium. Journal of Organometallic Chemistry, 308(1), 85-103. doi: 10.1016/S0022-328X(00)99524-X.

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 Creators:
Goddard, Richard1, Author           
Krüger, Carl2, Author           
Pörschke, Klaus-Richard3, Author           
Wilke, Günther4, Author           
Affiliations:
1Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              
2Service Department Krüger (XRAY), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445624              
3Research Group Pörschke, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445616              
4Research Department Wilke, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445591              

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 Abstract: The compounds [[(C2H4)2Ni]2H][Na(TMEDA)2] (I) and [[(C2H4)2Ni]2H]-[Li(CH3)2NCH2CH2N(CH3)CH2CH2N(CH3)2] (II) have been investigated by high resolution X-ray techniques. Compound I is found to exist as distinct ions which are well-separated in the unit cell, while II shows an ion pair contact between the lithium ion part and one nickel atom, one ethene group, and the hydride in the anion. This latter interaction has little effect on the geometry of the anion, which is similar in both compounds. Each nickel atom is surrounded by a trigonal-planar coordination geometry comprising two ethene groups and the bridging hydrige. The Ni-H-Ni bridge is non-linear and the angle at the hydrogen atom is 131 and 111°, respectively. The unusual geometry adopted by the anion is explained in terms of an interaction between the two nickel atoms involving the empty p-orbital on one metal with the filled d-orbitals on the other. The bonding situation obtained from semi-empirical molecular orbital calculations is in accord with the observed electron density distributions.

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Language(s): deu - German
 Dates: 1985-12-201986-07-01
 Publication Status: Issued
 Pages: 19
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Organometallic Chemistry
  Other : J. Organomet. Chem.
Source Genre: Journal
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Publ. Info: Lausanne, Schweiz : Elsevier Science
Pages: - Volume / Issue: 308 (1) Sequence Number: - Start / End Page: 85 - 103 Identifier: ISSN: 0022-328X
CoNE: https://pure.mpg.de/cone/journals/resource/954925622228