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题名:
Stepwise Assembly of M-7(II) Clusters Revealed by Mass Spectrometry, EXAFS, and Crystallography
作者: Na, HX; Yang, PY; Yin, Z; Wang, YH; Chang, LX; Si, R; Kurmoo, M; Zeng, MH
刊名: CHEMISTRY-A EUROPEAN JOURNAL
出版日期: 2016
卷号: 22, 期号:51, 页码:18404-18411
关键词: assembly processes ; crystal growth ; EXAFS spectroscopy ; mass spectrometry ; mixed-metal clusters
DOI: 10.1002/chem.201603652
通讯作者: Zeng, MH (reprint author), Guangxi Normal Univ, Key Lab Chem & Mol Engn Med Resources, Guilin 541004, Peoples R China. ; Zeng, MH (reprint author), Hubei Univ, Coll Chem & Chem Engn, Wuhan 430062, Peoples R China.
文章类型: 期刊论文
英文摘要: The square-planar monomer NiL2 (Ni-1), L=2-ethoxy-6-(N-methyl-iminomethyl)phenolate, reacts with M(H2O)(6)(ClO4)(2), M=Ni or Co, to form heptanuclear disks [CoxNi7-x(OH)(6)(L)(6)](ClO4)(2)2CH(3)CN (CoxNi7-x, x=0-7) and the co-crystal [CoxNi7-x(OH)(6)L-6][NiL2](ClO4)(2)2CH(3)CN (CoxNi7-x-Ni-1) under ambient conditions. It has proved possible to explore the bottom-up assembly process of CoxNi7-x and CoxNi7-x-Ni-1 in real time. The final products have been characterized by thermogravimetric analysis, IR, elemental analysis, ICP-MS, and single-crystal X-ray diffraction. Time-dependent mass spectrometry (MS) revealed the following reaction steps: Ni-1[M2L3](+)[M-4(OH)(2)L-4](2+)[M-7(OH)(6)L-6](2+). In contrast, the reaction of Ni-1 with Zn2+ only reaches halfway, and crystallographic evidence indicates a butterfly structure for [Zn2Ni2(OH)(2)Cl-2] (Zn2Ni2), an intermediate that is difficult to isolate in the above Ni-Co series. A summation method has been used to analyze the MS of bimetallic clusters with very similar atomic masses, as is the case for Co and Ni. The results provide ample information on the distribution of Co and Ni within each cluster and their statistical distribution within selected crystals.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000390600900019
ISSN号: 0947-6539
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26631
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Na, HX,Yang, PY,Yin, Z,et al. Stepwise Assembly of M-7(II) Clusters Revealed by Mass Spectrometry, EXAFS, and Crystallography[J]. CHEMISTRY-A EUROPEAN JOURNAL,2016-01-01,22(51):18404-18411.
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