Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, 230026, China.
Department of Chemistry, Moscow State University, 119991, Moscow, Leninskie gory, Russia.
Angew Chem Int Ed Engl. 2017 Sep 18;56(39):11990-11994. doi: 10.1002/anie.201707298. Epub 2017 Aug 21.
As an emerging member of endohedral fullerenes, metal cyanide clusterfullerenes (CYCF) are unique in terms of the encapsulation of a monometallic cluster. To date the reported carbon cages of CYCFs are limited to C and C , and little is known about the chemical reactivity of CYCFs. Herein, two isomers of the first C -based CYCFs, YCN@C , were isolated as trifluoromethyl derivatives, including YCN@C (23)(CF ) and three isomers of YCN@C (13)(CF ) , which are based on a unique chiral C -C (13) cage. As a common feature of the CF addition patterns, the YCN@C (CF ) compounds are stabilized by the formation of isolated C=C bonds and benzenoid rings on the carbon cages. The interplay between the endohedral YCN cluster and the exhohedral CF addends was unveiled according to single-crystal X-ray diffraction studies, thus offering new insight into the chemical reactivity of CYCFs.
作为富勒烯的新兴成员，金属氰化物clusterfullerenes（CYCF）在单金属簇的封装方面具有独特性。迄今为止，报道的 CYCF 的碳笼仅限于 C 和 C，对于 CYCF 的化学反应性知之甚少。在此，首次分离出两种基于 C 的 CYCF 的异构体，YCN@C，作为三氟甲基衍生物，包括 YCN@C（23）（CF ）和三种异构体的 YCN@C（13）（CF ），它们基于独特的手性 C-C（13）笼。作为 CF 加成模式的共同特征，YCN@C（CF ）化合物通过形成孤立的 C=C 键和碳笼上的苯环来稳定。根据单晶 X 射线衍射研究揭示了内球 YCN 簇和外球 CF 给体之间的相互作用，从而为 CYCF 的化学反应性提供了新的见解。
