Synthesis and X-ray crystallographic structures of [HGa(NMe2)2]2 and [PhGa(NHNMe2)2]2, and room-temperature conversions of [HGa(NMe2)2]2 to (HGaNH)n and (HGaNMe)n

Bing Luo; Wayne L. Gladfelter

doi:10.1016/j.jorganchem.2003.12.013

Synthesis and X-ray crystallographic structures of [HGa(NMe₂)₂]₂ and [PhGa(NHNMe₂)₂]₂, and room-temperature conversions of [HGa(NMe₂)₂]₂ to (HGaNH)_n and (HGaNMe)_n

Bing Luo, Wayne L. Gladfelter

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The reactivity of bis(dimethylamido) complexes of phenyl- and hydridogallium with ammonia, dimethylamine and 1,1-dimethylhydrazine is described. Synthesis of the starting gallium hydride, [HGa(NMe₂)₂]₂, was achieved in nearly quantitative yield from the reaction of HGaCl₂(quinuclidine) with LiNMe₂. In neat ammonia or methylamine at room temperature both dimethylamido ligands in [HGa(NMe₂) ₂]₂ were substituted by a single equivalent of NH₃ or MeNH₂ to produce amorphous (HGaNH)_n or (HGaNMe)_n, respectively. In contrast, the reaction of [PhGa(NMe₂)₂]₂ with neat Me₂NNH₂, at room temperature consumed two equivalents of the substituted hydrazine to form [PhGa(NHNMe₂)₂]₂ in a 73% yield. Single crystal X-ray crystallographic analyses of [HGa(NMe₂) ₂]₂ and [PhGa(NHNMe₂)₂] ₂ establish that in the solid state both compounds adopt a cyclic Ga-N-Ga-N structure with a crystallographic center of symmetry located at the center of the ring.

Original language	English (US)
Pages (from-to)	666-671
Number of pages	6
Journal	Journal of Organometallic Chemistry
Volume	689
Issue number	3
DOIs	https://doi.org/10.1016/j.jorganchem.2003.12.013
State	Published - Feb 9 2004

Bibliographical note

Funding Information:
The authors gratefully acknowledge support from the National Science Foundation (CHE-0315954). We also thank Dr. Victor G. Young for his assistance with the single crystal XRD experiments.

Keywords

Amide
Gallium
Hydrazide
Hydride
Structure
Synthesis

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@article{565bdda2702849df9fa4afc3a700b6a9,

title = "Synthesis and X-ray crystallographic structures of [HGa(NMe2)2]2 and [PhGa(NHNMe2)2]2, and room-temperature conversions of [HGa(NMe2)2]2 to (HGaNH)n and (HGaNMe)n",

abstract = "The reactivity of bis(dimethylamido) complexes of phenyl- and hydridogallium with ammonia, dimethylamine and 1,1-dimethylhydrazine is described. Synthesis of the starting gallium hydride, [HGa(NMe2)2]2, was achieved in nearly quantitative yield from the reaction of HGaCl2(quinuclidine) with LiNMe2. In neat ammonia or methylamine at room temperature both dimethylamido ligands in [HGa(NMe2) 2]2 were substituted by a single equivalent of NH3 or MeNH2 to produce amorphous (HGaNH)n or (HGaNMe)n, respectively. In contrast, the reaction of [PhGa(NMe2)2]2 with neat Me2NNH2, at room temperature consumed two equivalents of the substituted hydrazine to form [PhGa(NHNMe2)2]2 in a 73% yield. Single crystal X-ray crystallographic analyses of [HGa(NMe2) 2]2 and [PhGa(NHNMe2)2] 2 establish that in the solid state both compounds adopt a cyclic Ga-N-Ga-N structure with a crystallographic center of symmetry located at the center of the ring.",

keywords = "Amide, Gallium, Hydrazide, Hydride, Structure, Synthesis",

author = "Bing Luo and Gladfelter, {Wayne L.}",

note = "Funding Information: The authors gratefully acknowledge support from the National Science Foundation (CHE-0315954). We also thank Dr. Victor G. Young for his assistance with the single crystal XRD experiments.",

year = "2004",

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doi = "10.1016/j.jorganchem.2003.12.013",

language = "English (US)",

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T1 - Synthesis and X-ray crystallographic structures of [HGa(NMe2)2]2 and [PhGa(NHNMe2)2]2, and room-temperature conversions of [HGa(NMe2)2]2 to (HGaNH)n and (HGaNMe)n

AU - Luo, Bing

AU - Gladfelter, Wayne L.

N1 - Funding Information: The authors gratefully acknowledge support from the National Science Foundation (CHE-0315954). We also thank Dr. Victor G. Young for his assistance with the single crystal XRD experiments.

PY - 2004/2/9

Y1 - 2004/2/9

N2 - The reactivity of bis(dimethylamido) complexes of phenyl- and hydridogallium with ammonia, dimethylamine and 1,1-dimethylhydrazine is described. Synthesis of the starting gallium hydride, [HGa(NMe2)2]2, was achieved in nearly quantitative yield from the reaction of HGaCl2(quinuclidine) with LiNMe2. In neat ammonia or methylamine at room temperature both dimethylamido ligands in [HGa(NMe2) 2]2 were substituted by a single equivalent of NH3 or MeNH2 to produce amorphous (HGaNH)n or (HGaNMe)n, respectively. In contrast, the reaction of [PhGa(NMe2)2]2 with neat Me2NNH2, at room temperature consumed two equivalents of the substituted hydrazine to form [PhGa(NHNMe2)2]2 in a 73% yield. Single crystal X-ray crystallographic analyses of [HGa(NMe2) 2]2 and [PhGa(NHNMe2)2] 2 establish that in the solid state both compounds adopt a cyclic Ga-N-Ga-N structure with a crystallographic center of symmetry located at the center of the ring.

AB - The reactivity of bis(dimethylamido) complexes of phenyl- and hydridogallium with ammonia, dimethylamine and 1,1-dimethylhydrazine is described. Synthesis of the starting gallium hydride, [HGa(NMe2)2]2, was achieved in nearly quantitative yield from the reaction of HGaCl2(quinuclidine) with LiNMe2. In neat ammonia or methylamine at room temperature both dimethylamido ligands in [HGa(NMe2) 2]2 were substituted by a single equivalent of NH3 or MeNH2 to produce amorphous (HGaNH)n or (HGaNMe)n, respectively. In contrast, the reaction of [PhGa(NMe2)2]2 with neat Me2NNH2, at room temperature consumed two equivalents of the substituted hydrazine to form [PhGa(NHNMe2)2]2 in a 73% yield. Single crystal X-ray crystallographic analyses of [HGa(NMe2) 2]2 and [PhGa(NHNMe2)2] 2 establish that in the solid state both compounds adopt a cyclic Ga-N-Ga-N structure with a crystallographic center of symmetry located at the center of the ring.

KW - Amide

KW - Gallium

KW - Hydrazide

KW - Hydride

KW - Structure

KW - Synthesis

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