We report a facile and tailored method to prepare globally twisted chiral molecular cages through tun-able coordination ......

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　　In organic and bioorganic chemistry,the helical framework is one of most amazing molecular structures.The constructi......

In this paper, we define a roll-attaching operation of a hexagonal chain, and prove Gutman's conjecture affirmativel......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......