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题名: Cooperative N-H and CH2 Skeleton Effects on the Catalytic Activities of Bimetallic Ru(II)-NNN Complexes: Experimental and Theoretical Study
作者: Chai, Huining1, 2;  Liu, Tingting1, 2;  Zheng, Daoyuan1, 2;  Yu, Zhengkun1, 3
刊名: ORGANOMETALLICS
发表日期: 2017-11-13
DOI: 10.1021/acs.organomet.7b00682
卷: 36, 期:21, 页:4268-4277
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear ;  Chemistry, Organic
研究领域[WOS]: Chemistry
英文摘要: Bimetallic ruthenium(II) complexes bearing a bis(pyrazolyl-imidazolylpyridine) ligand bridged by a rotatable single CC bond or methylene linker were synthesized, structurally characterized, and exhibited diverse catalytic activities for the transfer hydrogenation (TH) reactions of ketones in refluxing isopropyl alcohol. Both the unprotected NH functionality and bridging methylene moiety demonstrated an acceleration effect on such TH reactions. Combination of the NH and CH2 skeleton functionalities into the bimetallic Ru(II)NNN complexes remarkably enhanced the catalytic activities of the complex catalysts. Density functional theory calculations have suggested that the difference in the catalytic activities of these Ru(II)NNN complexes is attributed to the inherent nucleophilic character of the coordinative nitrogen atoms in the bis(NNN) ligand, and the metalmetal interaction resulted from the number of net natural bond orbital charges on these nitrogen atoms.
关键词[WOS]: ASYMMETRIC TRANSFER HYDROGENATION ;  PYRAZOLYL-IMIDAZOLYL LIGAND ;  STEREOSELECTIVE HYDROGENATION ;  DEHYDROGENATION REACTIONS ;  HETEROMETALLIC COMPLEXES ;  RUTHENIUM(II) COMPLEXES ;  PINCER COMPLEXES ;  OSMIUM COMPLEXES ;  NNN LIGAND ;  KETONES
语种: 英语
WOS记录号: WOS:000415392000024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149744
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, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, State Key Lab Organometall Chem, Shanghai Inst Organ Chem, 354 Fenglin Rd, Shanghai 200032, Peoples R China

Recommended Citation:
Chai, Huining,Liu, Tingting,Zheng, Daoyuan,et al. Cooperative N-H and CH2 Skeleton Effects on the Catalytic Activities of Bimetallic Ru(II)-NNN Complexes: Experimental and Theoretical Study[J]. ORGANOMETALLICS,2017,36(21):4268-4277.
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