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Determination of the acidic properties of carboxylated carbocatalysts in an acid-catalyzed ring-opening reaction using kinetic profiling
Wang, Bolun; Wen, Guodong; Su, Dangsheng; Su, DS (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Su, DS (reprint author), Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, D-14195 Berlin, Germany.
2017-09-01
Source PublicationTSINGHUA UNIV PRESS
ISSN1998-0124
Volume10Issue:9Pages:2954-2965
AbstractThe acid-catalyzed ring-opening reaction of styrene oxide was used as a probe reaction for evaluating the acidic properties of carboxylated carbocatalysts. Significant discrepancies in the initial reaction rates were normalized using the total number of carboxyl groups, and demonstrated that the average catalytic activities of the carboxyl moieties on the carbocatalysts differed. Comparisons between the apparent activation energy Ea and the pre-exponential factor A, derived from Arrhenius analysis, demonstrated that A varied more significantly, and therefore had a more significant effect on the reaction rates than Ea. The variation in the calculated pKa values of the carboxyl groups was attributed to the electronic effects of the nitro groups. This hypothesis was supported by the temperature programmed desorption profiles of nitrogen monoxide ions.; The acid-catalyzed ring-opening reaction of styrene oxide was used as a probe reaction for evaluating the acidic properties of carboxylated carbocatalysts. Significant discrepancies in the initial reaction rates were normalized using the total number of carboxyl groups, and demonstrated that the average catalytic activities of the carboxyl moieties on the carbocatalysts differed. Comparisons between the apparent activation energy Ea and the pre-exponential factor A, derived from Arrhenius analysis, demonstrated that A varied more significantly, and therefore had a more significant effect on the reaction rates than Ea. The variation in the calculated pKa values of the carboxyl groups was attributed to the electronic effects of the nitro groups. This hypothesis was supported by the temperature programmed desorption profiles of nitrogen monoxide ions.
description.department[wang, bolun ; wen, guodong ; su, dangsheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china ; [wang, bolun] univ sci & technol china, sch mat sci & engn, hefei 230026, anhui, peoples r china ; [su, dangsheng] max planck gesell, fritz haber inst, dept inorgan chem, d-14195 berlin, germany
KeywordCarboxylated Carbocatalysts Acidic Properties Ring-opening Reaction Arrhenius Analysis Pka Values Electronic Effect
Subject AreaChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNational Natural Science Foundation of China [21133010, 51221264, 91545119, 91545110, 21261160487, 21411130120, 21473223, 21503241]; "Strategic Priority Research Program" of the Chinese Academy of Sciences (CAS) [XDA09030103]; CAS/State Administration for Foreign Experts Affairs (SAFEA) International Partnership Program for Creative Research Teams; Doctoral Starting up Foundation of Liaoning Province, China [20121068]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79131
Collection中国科学院金属研究所
Corresponding AuthorSu, DS (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Su, DS (reprint author), Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, D-14195 Berlin, Germany.
Recommended Citation
GB/T 7714
Wang, Bolun,Wen, Guodong,Su, Dangsheng,et al. Determination of the acidic properties of carboxylated carbocatalysts in an acid-catalyzed ring-opening reaction using kinetic profiling[J]. TSINGHUA UNIV PRESS,2017,10(9):2954-2965.
APA Wang, Bolun,Wen, Guodong,Su, Dangsheng,Su, DS ,&Su, DS .(2017).Determination of the acidic properties of carboxylated carbocatalysts in an acid-catalyzed ring-opening reaction using kinetic profiling.TSINGHUA UNIV PRESS,10(9),2954-2965.
MLA Wang, Bolun,et al."Determination of the acidic properties of carboxylated carbocatalysts in an acid-catalyzed ring-opening reaction using kinetic profiling".TSINGHUA UNIV PRESS 10.9(2017):2954-2965.
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