碱金属对内和对外选择性地与corannulene 结合。
Selective endo and exo binding of alkali metals to corannulene.
机构信息
Department of Chemistry, University at Albany, State University of New York, 12222, USA.
出版信息
Angew Chem Int Ed Engl. 2011 Aug 22;50(35):8090-4. doi: 10.1002/anie.201103028. Epub 2011 Jul 11.
The ion size matters: the structures of corannulene monoanions crystallized with Cs(+) and Rb(+) ions in the presence of [18]crown-6 reveal the intrinsic binding preferences of alkali metals and allow evaluation of the bowl deformation caused by negative charge distribution and metal binding. The large cesium cation coordinates exclusively to the concave face of C(20) H(10)(-), whereas the smaller rubidium cation exhibits convex binding.
离子尺寸很重要
在[18]冠-6 的存在下，与 Cs(+)和 Rb(+)离子结晶的corannulene 一价阴离子的结构揭示了碱金属的固有结合偏好，并允许评估由负电荷分布和金属结合引起的碗变形。大的铯阳离子仅与 C(20)H(10)(-)的凹面配位，而较小的铷阳离子则表现出凸面结合。
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