π-Rich σ(2)P-heterocycles: bent η(1)-P- and μ(2)-P-coordinated 1,3-benzazaphosphole copper(I) halide complexes.
π-Rich σ(2)P-heterocycles: bent η(1)-P- and μ(2)-P-coordinated 1,3-benzazaphosphole copper(I) halide complexes.
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富含 Ï(2)P-杂环:弯曲 η(1)-P- 和 Î⁄(2)-P-配位 1,3-苯并磷铜 (I) 卤化物配合物
DOI:
10.1021/ic502367d
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发表时间:
2015
影响因子:
4.6
通讯作者:
J. W. Heinicke
中科院分区:
文献类型:
--
作者:
M. Ghalib;P. G. Jones;C. Schulzke;D. Sziebert;L. Nyulászi;J. W. Heinicke
The reaction of 1-neopentyl-1,3-benzazaphosphole1with CuCl, CuBr, or Cu(SMe2)Br in THF at room temperature provides sparingly soluble [Cu7(μ2-L6)(μ2-X7)]+[CuX2]−cluster complexes2a,b(L indicates coordinated1,aX = Cl,bX = Br), with loosely bound THF, in high yields. The conversions proceed via transient THF-soluble labile [(L2CuX)2] complexes. Separation before complete conversion, combined with suitable conditions for crystallization, allowed these intermediates to be trapped. Depending on the reactant ratios, crystals of the clusters or of dimeric L2CuX complexes were formed. The crystal structure analyses of2a·4THF and the dimers3b[{Cu(η1-L)2(μ2-Br)}2],4b[{Cu(μ2-L)(η1-L)(κBr)}2],5a·2MeOH, and5b·2MeOH [{Cu(μ2-L)(η1-L)(κX···HOMe)}2] generally display μ2-P- and/or tilted η1-P-coordination, contrasting with the preference for the η1-P in-plane coordination mode of phosphinine ligands in their copper(I) halide complexes. DFT studies of geometry-optimized monomers LCuBr, L(CuBr)2, L2CuBr, and the dimers3band4b, calculated at the ωB97xD/cc-PVDZ level, suggest that weak competing interactions with the solvent THF and the entropy factor of the dimerization result in lability and a subtle balance between the different complexes in solution, whereas the particular coordination observed in the crystals is attributable to conservation of the delocalized π-system in the ligand. The HOMO of4bis composed of Cu d orbitals and the π-type HOMO of the bridging ligand. Interestingly, despite the rather short Cu···Cu interatomic separation (2.726 Ǻ), no bond critical point could be located in4b, indicating the absence of weak cuprophilic interactions in this compound.
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DOI:
10.1107/s1600536810012146
发表时间:
2010-04-10
期刊:
Acta crystallographica. Section E, Structure reports online
影响因子:
--
作者:
Healy PC;McMurtrie JC;Bouzaid J
通讯作者:
Bouzaid J
影响因子:
4
作者:
A. Poë
通讯作者:
A. Poë
DOI:
10.1515/znb-1999-1005
发表时间:
1999
期刊:
Zeitschrift für Naturforschung B
影响因子:
--
作者:
D. Gudat;Andreas W. Holderberg;N. Korber;M. Nieger;M. Schrott
通讯作者:
M. Schrott
DOI:
10.1016/s1472-7862(03)00075-3
发表时间:
2002
期刊:
Journal of Supramolecular Chemistry
影响因子:
--
作者:
Michito Shiotsuka;Takahiro Tanamachi;Tsuyoshi Urakawa;M. Munakata;Y. Matsuda
通讯作者:
Y. Matsuda
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
M. S. Adam;P. Jones;J. Heinicke
通讯作者:
J. Heinicke