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Title: Hydrazido(1-) and 2,2-dimethylhydrazido(1-) derivatives of permethylscandocene. Preparation and structural characterization of their products from reactions with acetonitrile: (. eta. sup 5 -C sub 5 Me sub 5 ) sub 2 ScN(H)C(CH sub 3 )NNH sub 2 and (. eta. sup 5 -C sub 5 Me sub 5 ) sub 2 ScN(H)C(CH sub 3 )NNMe sub 2

Journal Article · · Inorganic Chemistry; (USA)
DOI:https://doi.org/10.1021/ic00347a045· OSTI ID:5972958
; ; ;  [1]
  1. California Institute of Technology, Pasadena (USA)
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A rare example of an unsubstituted hydrazido(1-) complex, Cp{sup *}{sub 2}ScN(H)NH{sub 2} (Cp{sup *} = ({eta}{sup 5}-C{sub 5}Me{sub 5})), prepared by reaction of 1 equiv of anhydrous hydrazine with Cp{sup *}{sub 2}ScCH{sub 3}, reacts with acetonitrile to form Cp{sup *}{sub 2}ScN(H)C(CH{sub 3})NNH{sub 2}. The crystal structure of the complex is reported and reveals a five-membered, nearly planar (ScN(H)C(CH{sub 3})NNH{sub 2}) ring. The results of a labeling study using {sup 15}N{triple bond}CCH{sub 3} are consistent with a mechanism involving insertion of acetonitrile into the Sc-N bond of Cp{sup *}{sub 2}ScNHNH{sub 2}, followed by tautomerization to form Cp{sup *}{sub 2}ScN(H)C(CH{sub 3})NNH{sub 2}. The closely related compounds Cp{sup *}{sub 2}ScN(H)NMe{sub 2} and Cp{sup *}{sub 2}ScN(H)C(CH{sub 3})NNMe{sub 2} also have been prepared by using an analogous reaction pathway, and the structure of the latter has been determined as well, revealing a four-membered, nearly planar (ScN(H)C(CH{sub 3})N(NMe{sub 2})) ring. 18 refs., 3 figs., 5 tabs.

OSTI ID:
5972958
Journal Information:
Inorganic Chemistry; (USA), Vol. 29:22; ISSN 0020-1669
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CYCLOALKANES
CHEMICAL PREPARATION
NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
SCANDIUM COMPLEXES
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
LABELLED COMPOUNDS
NITROGEN 15
ALKANES
COMPLEXES
DATA
HYDROCARBONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
NITROGEN ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties