منابع مشابه
Analysis of Germanium Hydride Molecular Clusters
Isotope clusters in library electron ionization mass spectra of germanes often appear a few u lower than theoretically expected from elemental composition; for example, the dominant peak of the Ge(4)H(10)(+) pattern is shifted 8 u down. This phenomenon is due to combinations of three essential components: the molecular ion Ge(n)H(2n+2)(+) and two products of hydrogen elimination, Ge(n)H(+) and ...
متن کاملGermanium(II) hydride mediated reduction of carbon dioxide to formic acid and methanol with ammonia borane as the hydrogen source.
LGeOC(O)H (3) (L = CH{(CMe)(2,6-iPr(2)C(6)H(3)N)}(2)), from the straightforward conversion of LGeH (2) with CO(2), reacts with LiH(2)NBH(3) giving 2 and LiOC(O)H (4), while the corresponding reaction of 3 with H(3)NBH(3) after aqueous workup releases 2 and CH(3)OH (5). This opens the possibility to use hydride 2 as a mediator in the reduction of carbon dioxide to formic acid and methanol.
متن کاملColloidal synthesis of germanium nanocrystals
In this study, colloidal germanium nanocrystals were synthesized by a simple and novel method, and their optical properties were also studied. Polyvinyl alcohol (PVA) as a surface modifier was used to control the optical properties of colloidal Ge nanocrystals. Fourier transform infrared spectroscopy (FTIR) analysis was performed to identify the various functional groups present in the sample. ...
متن کاملHydride Reduction by a Sodium Hydride–Iodide Composite
Sodium hydride (NaH) is widely used as a Brønsted base in chemical synthesis and reacts with various Brønsted acids, whereas it rarely behaves as a reducing reagent through delivery of the hydride to polar π electrophiles. This study presents a series of reduction reactions of nitriles, amides, and imines as enabled by NaH in the presence of LiI or NaI. This remarkably simple protocol endows Na...
متن کاملAluminum Hydride Chemistry
Anion photoelectron spectroscopy and density functional theory were employed to study aluminum hydride clusters, AlnHm (4 e n e 8, 0 e m e 10). Photoelectron spectra revealed that Al4H4, Al4H6, and a family of species with general formula AlnHn+2 (5 e n e 8) have small adiabatic electron affinities and large HOMO-LUMO gaps (ranging from 0.5 to 1.9 eV) relative to those of their stoichiometric n...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1922
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja01430a009