Anagram & Information om | Engelska ordet BORANES

Exempel på hur man kan använda BORANES i en mening

• Electron deficient molecules such as boranes also do not obey the octet rule but share delocalized electrons in a manner similar to metallic bonding.
• In terms of heat of combustion, pentaborane surpasses its equivalent carbon compounds because their self-linking element, carbon, weighs at least one atomic mass unit more than an atom of boron, and some boranes contain more hydrogen than the carbon equivalent.
• An extended version of the 3c–2e bond model features heavily in cluster compounds described by the polyhedral skeletal electron pair theory, such as boranes and carboranes.
• This significant rate difference in producing di- and tri-alkyl boranes is useful in the synthesis of bulky boranes that can enhance regioselectivity.
• Tetrafluorohydrazine explodes or ignites on contact with reducing agents at room temperature, including hydrogen, hydrocarbons, alcohols, thiols, amines, ammonia, hydrazines, dicyanogen, nitroalkanes, alkylberylliums, silanes, boranes or powdered metals.
• Stoichiometric reducing agents to accomplish this task include lithium aluminium hydride, sodium borohydride, alkoxy borohydrides, alkoxy aluminium hydrides, and boranes.
• Apart from many of his contributions to applied theoretical chemistry, an equivalent of the structural chemistry of carbon, as exemplified by the Huckel 4n+2 Rule, benzenoid aromatics and graphite, and tetrahedral carbon and diamond, is brought in the structural chemistry of boron by the Jemmis mno rules which relates polyhedral and macropolyhedral boranes to allotropes of boron and boron-rich solids.
• Like many of the related boranes, these clusters are polyhedra and can be classified as closo-, nido-, arachno-, etc.
• Like many of the related boranes, these clusters are polyhedra and are similarly classified as closo-, nido-, arachno-, and hypho-, according to the so-called electron count.
• The descriptor nido- is typically applied boranes, derivatives such as carboranes, and deltahedral metal cluster compounds such as stannides, plumbides and bismuth polycations.
• Most commonly, these are generated via reduction of an organoborane dichloride, but photolysis of other boranes can also afford short-lived borylene species.

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