Synthesis and Characterization of Germanium Coordination Compounds for Production of Germanium Nanomaterials
A series of novel germanium(II) precursors was synthesized to initiate an investigation between the precursors' structures and the morphologies of the resulting nanoparticles. Theprecursors were synthesized from the reaction of Ge[N(SiMe3)2]2 or [Ge(OtBu)2]2 and the appropriate ligand: N,N″‐dib...
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Published in | European Journal of Inorganic Chemistry Vol. 2009; no. 36; pp. 5550 - 5560 |
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Main Authors | , , , |
Format | Book Review Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.12.2009
WILEY‐VCH Verlag Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | A series of novel germanium(II) precursors was synthesized to initiate an investigation between the precursors' structures and the morphologies of the resulting nanoparticles. Theprecursors were synthesized from the reaction of Ge[N(SiMe3)2]2 or [Ge(OtBu)2]2 and the appropriate ligand: N,N″‐dibenzylethylenediamine (H2‐DBED), tert‐butyl alcohol (H‐OtBu), 2,6‐dimethylphenol (H‐DMP), 2,6‐diphenylphenol (H‐DPP), tert‐butyldimethylsilanol (H‐DMBS), triphenylsilanol (H‐TPS), triphenylsilanethiol (H‐TPST), and benzenethiol (H‐PS). The products were identified as: [Ge(μc‐DBED)]2 (1, μc = bridging chelating), [Ge(μ‐DMP)(DMP)]2 (2), Ge(DPP)2 (3), [Ge(μ‐OtBu)(DMBS)]2, (4), [Ge(μ‐DMBS)(DMBS)]2 (5), Ge(TPS)3(H) (6), [Ge(μ‐TPST)(TPST)]2 (7), and Ge(PS)4 (8). The GeII metal centers were found to adopt a pyramidal geometry for 1, 2, 4, 5, 7, a bent arrangement for 3, and a tetrahedral coordination for the GeIV species 6 and 8. Using a simple solution precipitation methodology, Ge0 nanomaterials were isolated as dots and wires for the majority of precursors. Compound 7 led to the isolation of amorphous GexSy. The nanomaterials isolated were characterized by TEM, EDS, and powder XRD. A correlation between the precursor's arrangement and final observed nanomorphology was proffered as part of the “precursor structure affect” phenomenon. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
A series of GeII precursors―Ge[OC6H3(C6H5)2]2 shown―were synthesized for production of Ge0 nanomaterials. Upon precipitation from solution, it was found that Ge0 nanodots were formed from the amide, nanowires from alkoxides (shown) and siloxides, and amorphous GexSy from the silanthiolate. |
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Bibliography: | Office of Basic Energy Sciences of the Department of Energy National Institutes of Health (NIH) - No. #1 R21 EB005365-01 ark:/67375/WNG-FTQ3HB08-G ArticleID:EJIC200900556 National Science Foundation (NSF) - No. NSF CBET-0756776 istex:F1105C3903DAB7DE65B16CA0FF1142120ED5E868 NIH RePORTER ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Department of Nuclear and Chemical Engineering, 1 University of New Mexico, Albuquerque, NM 87131-0001 |
ISSN: | 1434-1948 1099-0682 |
DOI: | 10.1002/ejic.200900556 |