Hydrogen/Deuterium-Exchange Reactions of Methane with Aromatics and Cyclohexane Catalyzed by a Nanoscopic Aluminum Chlorofluoride

被引：7

作者：

Calvo, Beatriz ^{[1
]}

Braun, Thomas ^{[1
]}

Kemnitz, Erhard ^{[1
]}

机构：

[1] Humboldt Univ, Book Taylor Str 2, D-12489 Berlin, Germany

来源：

CHEMCATCHEM | 2018年 / 10卷 / 02期

关键词：

aluminum; deuterium; exchange reactions; fluorine; heterogeneous catalysis; H BOND ACTIVATION; BRONSTED ACID SITES; SOLID-STATE NMR; ROOM-TEMPERATURE; H/D EXCHANGE; GAS-PHASE; HETEROGENEOUS CATALYSIS; HYDROGEN-EXCHANGE; CARBON-DIOXIDE; GAMMA-ALUMINA;

D O I：

10.1002/cctc.201701327

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

H/D-exchange reactions between methane and deuterated solvents such as [D-6]benzene and [D-12]cyclohexane were heterogeneously catalyzed by nanoscopic aluminum chlorofluoride (ACF=AlClxF3-x, x approximate to 0.05-0.3) under very mild conditions. (CNMR)-C-13 spectroscopy experiments at labeled methane revealed the formation of all isotopologues. AlCl3, AlBr3, HS-AlF3, -Al2O3, and -Al2O3 preheated at 700 degrees C did not show any H/D-exchange reaction of methane or [D-6]benzene. Mechanistically, electrophilic activation of methane was suggested at the ACF surface.

引用

页码：403 / 406

页数：4

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