Hume-Rothery phase-inspired metal-rich molecules: cluster expansion of [Ni(ZnMe)₆(ZnCp*)₂] by face capping with Ni⁰(η⁶-toluene) and Ni(I)(η⁵-Cp*).
Hume-Rothery phase-inspired metal-rich molecules: cluster expansion of [Ni(ZnMe)₆(ZnCp*)₂] by face capping with Ni⁰(η⁶-toluene) and Ni(I)(η⁵-Cp*).
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休谟-罗瑟里相启发的富金属分子:通过用 Niâ°(δâ¶-甲苯) 和 Ni(I )(δâµ- 进行面封端,实现 [Ni(ZnMe)â(ZnCp*)â] 的簇扩展CP*)
DOI:
10.1021/ic5014335
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发表时间:
2014
影响因子:
4.6
通讯作者:
Fischer
中科院分区:
文献类型:
--
作者:
Jerabek;Trombach;Frenking;Fischer
The novel all-hydrocarbon ligand-stabilized binuclear clusters of metal–core composition Ni2Zn7E, [(η5-Cp*)Ni2(ZnMe)6(ZnCp*)(ECp*)] (1-Zn, E = Zn;1-Ga, E = Ga) and [(η6-toluene)Ni2(ZnCp*)2(ZnMe)6] (2; Cp* = pentamethylcyclopentadienyl), were obtained via Ga/Zn and Al/Zn exchange reactions using the starting compounds [Ni2(ECp*)3(η2-C2H4)2] (E = Al/Ga) and an excess of ZnMe2(Me = CH3). Compounds1-Znand1-Gaare very closely related and differ only by one Zn or Ga atom in the group 12/13 metal shell (Zn/Ga) around the two Ni centers. Accordingly,1-Znis EPR-active and1-Gais EPR-silent. The compounds were derived as a crystalline product mixture. All new compounds were characterized by1H and13C NMR and electron paramagnetic resonance (EPR) spectroscopy, mass spectrometric analysis using liquid-injection field desorption ionization, and elemental analysis, and their molecular structures were determined by single-crystal X-ray diffraction studies. In addition, the electronic structure has been investigated by DFT and QTAIM calculations, which suggest that there is a Ni1–Ni2 binding interaction. Similar to Zn-rich intermetallic phases of the Hume–Rothery type, the transition metals (here Ni) are distributed in a matrix of Zn atoms to yield highly Zn-coordinated environments. The organic residues, ancillary ligands (Me, Cp*, and toluene), can be viewed as the “protecting” shell of the 10-metal-atom core structures. The soft and flexible binding properties of Cp* and transferability of Me substituents between groups 12 and 13 are essential for the success of this precedence-less type of cluster formation reaction.
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影响因子:
4
作者:
Bollermann, Timo;Puls, Arik;Fischer, Roland A.
通讯作者:
Fischer, Roland A.
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Oracio Serrano;Elke Hoppe;J. Fettinger;P. Power
通讯作者:
P. Power
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
Thomas Nickel;Richard Goddard;C. Krüger;K. Pörschke
通讯作者:
K. Pörschke
影响因子:
--
作者:
A. Meltzer;C. Präsang;Carsten Milsmann;M. Driess
通讯作者:
M. Driess
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
J. G. Snijders;A. J. Sadlej
通讯作者:
A. J. Sadlej