Young Victor G, Brennessel William W, Ellis John E
Department of Chemistry, 207 Pleasant Street SE, University of Minnesota, Minneapolis, MN 55455, USA.
Department of Chemistry, 120 Trustee Road, University of Rochester, Rochester, NY 14627, USA.
Acta Crystallogr C Struct Chem. 2023 Nov 1;79(Pt 11):456-463. doi: 10.1107/S2053229623008367. Epub 2023 Oct 3.
Reactions of (tricyclohexylphosphane)copper(I) chloride with two equivalents of potassium anthracene (KAn) in tetrahydrofuran (THF) at 200 K provides air-sensitive but thermally stable (at 293 K) solutions from which yellow crystalline blocks of bis[bis(tetrahydrofuran-κO)potassium] bis(μ-anthracene-κC:C)dicopper, [K(THF)][{Cu(9,10-η-CH)}] or [K(CHO)][Cu(CH)], 1, were isolated in about 50% yield. Single-crystal X-ray crystallographic analysis of 1 confirmed the presence of the first known (arene)cuprate. Also, unlike all previously known homoleptic (anthracene)metallates of d-block elements, which contain metals coordinated only to terminal rings, the organocuprate unit in 1 contains copper bound to the 9,10-carbons of the central ring of anthracene. No other d- or f-block metal is known to afford an anthracene or other aromatic hydrocarbon complex having the architecture of organodicuprate 1.
在200 K下,(三环己基膦)氯化亚铜与两当量的蒽钾(KAn)在四氢呋喃(THF)中反应,得到对空气敏感但热稳定(在293 K)的溶液,从中以约50%的产率分离出双[双(四氢呋喃-κO)钾]双(μ-蒽-κC:C)二铜,[K(THF)][{Cu(9,10-η-CH)}]或[K(CHO)][Cu(CH)],即化合物1的黄色晶体块。对化合物1进行单晶X射线晶体学分析,证实了首个已知的(芳烃)铜酸盐的存在。此外,与所有先前已知的d族元素的均配(蒽)金属酸盐不同,后者所含金属仅与末端环配位,化合物1中的有机铜酸盐单元含有与蒽中心环的9,10-碳相连的铜。已知没有其他d族或f族金属能得到具有有机二铜酸盐1结构的蒽或其他芳烃配合物。