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Updated: Sep 22, 2025

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

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化在环境压力下受缺陷调节的挫折路易斯对行为

Hao Chen1,2, Chuanye Xiong3,4, Jisue Moon5

  • 1Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee, Knoxville, Tennessee 37996, United States.

Journal of the American Chemical Society
|May 19, 2022
PubMed
概括

研究人员使用六角化物 (h-BN) 支架开发了新的异质挫败的易斯对 (FLPs). 这些FLP有效地激活,在化催化中表现有前途,性能优于现有的异质催化剂.

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Exceptions to the Octet Rule

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Hydroboration-Oxidation of Alkenes

In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
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A significant aspect of hydroboration–oxidation is the regio- and stereochemical outcome of the reaction.
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This lesson delves into Lewis acids and bases in the context of the octet rule for electron-deficient compounds. Here, the concept is discussed, emphasizing the group 13 elements like boron or aluminium. Since group 13 elements possess three valence electrons, they form trivalent compounds with a sextet of electrons and a vacant orbital for the central atom. Consequently, these electron-deficient compounds accept electrons from other species to complete their octet in a chemical reaction. They...
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