[Pt<sub>2</sub>Cu<sub>34</sub>(PET)<sub>22</sub>Cl<sub>4</sub>]<sup>2–</sup>: An Atomically Precise, 10-Electron PtCu Bimetal Nanocluster with a Direct Pt–Pt Bond
作者:Sanghwa Lee、Megalamane S. Bootharaju、Guocheng Deng、Sami Malola、Hannu Häkkinen、Nanfeng Zheng、Taeghwan Hyeon
DOI:10.1021/jacs.1c04002
日期:2021.8.11
calculations, using the densityfunctionaltheory, show that the Pt2Cu34 NC is a 10-electron superatom. The computed absorption spectrum matches well with the measured data and allows for assignment of the absorption peaks. The calculations also rationalize energetics for ligand exchange observed in the mass spectrometry data. The synergistic effects induced by Pt doping are found to enhance the catalytic activity
杂原子掺杂的金属纳米团簇 (NC) 非常适合从根本上了解掺杂对电子结构和催化性能的影响。不幸的是,当金属原子尺寸差异很大(例如,Cu 和 Pt)时,它们的受控合成极具挑战性。在这里,我们设计了一种金属交换策略,可以同时对 NC 进行掺杂和调整大小。具体来说,[Pt 2 Cu 34 (PET) 22 Cl 4 ] 2– NC,Pt掺杂的Cu NC的第一个例子,是通过利用[Cu 32 (PET) 24 Cl 2 H 8 ] 2的独特反应性合成的– NC 与 Pt 4+离子。单晶 X 射线结构表明,两个直接键合的 Pt 原子占据了一个异常互穿、不完整的双二十面体核 (Pt 2 Cu 18 )的两个中心,该核由 Cu 16 (PET) 22 Cl 4壳稳定。通过结合实验和理论结果验证了 NC 的分子结构和组成。使用密度泛函理论的电子结构计算表明,Pt 2 Cu 34NC 是一个 10 电子的超原子
PROCESS FOR PRODUCTION OF DIMERS OF AROMATIC MONOHYDROXYL COMPOUNDS
申请人:Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
公开号:EP1380558A1
公开(公告)日:2004-01-14
The present invention provides a method for preparing dimer of a monohydroxy aromatic compound. In the method of the present invention, oxidative coupling reaction of a monohydroxy aromatic compound represented by formula [I]:
Ar-OH [I]
wherein Ar represents an optionally substituted aromatic group
is carried out in a nitrogen containing polar solvent in the presence of a copper salt. By the method of the instant invention, dimer of the monohydroxy aromatic compound can be obtained in high yield.
本发明提供了一种制备单羟基芳香化合物二聚体的方法。在本发明的方法中,由式[I]代表的单羟基芳香化合物进行氧化偶联反应:
Ar-OH [I]
其中 Ar 代表任选取代的芳香基团
在铜盐存在下,在含氮极性溶剂中进行。通过本发明的方法,可以高产率地获得单羟基芳香化合物的二聚物。
BINAPHTOL DERIVATIVE AND PROCESS FOR PRODUCING THE SAME
申请人:Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
公开号:EP1380564A1
公开(公告)日:2004-01-14
The present invention provides a binaphthol compound represented by formula [1]:
and a salt thereof.
本发明提供了一种由式[1]代表的二萘酚化合物:
及其盐。
Process for production of dimers of aromatic monohydroxyl compounds
申请人:——
公开号:US20040143141A1
公开(公告)日:2004-07-22
The present invention provides a method for preparing dimer of a monohydroxy aromatic compound. In the method of the present invention, oxidative coupling reaction of a monohydroxy aromatic compound represented by formula [I]:
Ar—OH [I]
wherein Ar represents an optionally substituted aromatic group is carried out in a nitrogen containing polar solvent in the presence of a copper salt. By the method of the instant invention, dimer of the monohydroxy aromatic compound can be obtained in high yield.
本发明提供了一种制备单羟基芳香化合物二聚体的方法。在本发明的方法中,由式[I]代表的单羟基芳香化合物进行氧化偶联反应:
Ar-OH [I&rsqb;
其中 Ar 代表任选取代的芳香基团,在铜盐存在下于含氮极性溶剂中进行。通过本发明的方法,可以高产率地获得单羟基芳香族化合物的二聚物。
1,4-BIS(TRIMETHYLSILYL)BUTA-1,3-DIYNE
作者:Jones, Graham E.、Kendrick, David A.、Holmes, Andrew B.