منابع مشابه
Aluminum 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...
متن کاملHückel's Rule of Aromaticity Categorizes Aromatic closo Boron Hydride Clusters.
A direct connection is established between three-dimensional aromatic closo boron hydride clusters and planar aromatic [n]annulenes for medium and large boron clusters. In particular, the results prove the existence of a link between the two-dimensional Hückel rule, as followed by aromatic [n]annulenes, and Wade-Mingos' rule of three-dimensional aromaticity, as applied to the aromatic [Bn Hn ](...
متن کاملPhotoelectron spectroscopy of boron aluminum hydride cluster anions.
Boron aluminum hydride clusters are studied through a synergetic combination of anion photoelectron spectroscopy and density functional theory based calculations. Boron aluminum hydride cluster anions, BxAlyHz(-), were generated in a pulsed arc cluster ionization source and identified by time-of-flight mass spectrometry. After mass selection, their photoelectron spectra were measured by a magne...
متن کاملBoron chemistry in a new light
Photocatalysis has recently opened up new avenues for the generation of radical species under visible light irradiation conditions. A particularly fascinating class of photocatalyzed transformations relies on the activation of stable boron species with visible-light since it allows the creation of boryl and/or carbon radicals through single electron transfer or energy transfer without the need ...
متن کاملAn introduction to boron: history, sources, uses, and chemistry.
Following a brief overview of the terrestrial distribution of boron in rocks, soil, and water, the history of the discovery, early utilization, and geologic origin of borate minerals is summarized. Modern uses of borate-mineral concentrates, borax, boric acid, and other refined products include glass, fiberglass, washing products, alloys and metals, fertilizers, wood treatments, insecticides, a...
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ژورنال
عنوان ژورنال: Journal of Organometallic Chemistry
سال: 1976
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(00)91685-1