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题名: Synthesis, Thermal Behavior, and Dehydrogenation Kinetics Study of Lithiated Ethylenediamine
作者: Chen, Juner1, 2;  Wu, Guotao1;  Xiong, Zhitao1;  Wu, Hui3, 4;  Chua, Yong Shen1;  Zhou, Wei3, 4;  Liu, Bin1;  Ju, Xiaohua1;  Chen, Ping1
关键词: amines ;  crystallization ;  dehydrogenation ;  ladder polymers ;  lithiation
刊名: CHEMISTRY-A EUROPEAN JOURNAL
发表日期: 2014-10-13
DOI: 10.1002/chem.201403047
卷: 20, 期:42, 页:13636-13643
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The lithiation of ethylenediamine by LiH is a stepwise process to form the partially lithiated intermediates LiN(H)CH2CH2NH2 and [LiN(H)CH2CH2NH2][LiN(H)CH2CH2N(H)Li](2) prior to the formation of dilithiated ethylenediamine LiN(H)CH2CH2N(H)Li. A reversible phase transformation between the partial and dilithiated species was observed. One dimensional {LinNn} ladders and three-dimensional network structures were found in the crystal structures of LiN(H)CH2CH2NH2 and LiN(H)CH2CH2N(H)Li, respectively. LiN(H)CH2CH2N(H)Li undergoes dehydrogenation with an activation energy of 181 +/- 8kJmol(-1), whereas the partially lithiated ethylenediamine compounds were polymerized and released ammonia at elevated temperatures. The dynamical dehydrogenation mechanism of the dilithiated ethylenediamine compounds was investigated by using the Johnson-Mehl-Avrami equation.
关键词[WOS]: AMIDE LADDER STRUCTURES ;  MIXED AGGREGATE MAA ;  ASYMMETRIC-SYNTHESIS ;  LITHIUM AMIDES ;  HYDROGEN STORAGE ;  ALLYLIC AMINES ;  SINGLE CONCEPT ;  RING-STACKING ;  CHEMISTRY ;  DECOMPOSITION
语种: 英语
WOS记录号: WOS:000342797500025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145738
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
4.Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

Recommended Citation:
Chen, Juner,Wu, Guotao,Xiong, Zhitao,et al. Synthesis, Thermal Behavior, and Dehydrogenation Kinetics Study of Lithiated Ethylenediamine[J]. CHEMISTRY-A EUROPEAN JOURNAL,2014,20(42):13636-13643.
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