Synthesis and Structure of Self‐Complementary {2}‐Metallacryptates and Their Linear or Meandering Infinite Arrangements in the Solid State
作者:Rolf W. Saalfrank、Nicolai Mooren、Andreas Scheurer、Harald Maid、Frank W. Heinemann、Frank Hampel、Walter Bauer
DOI:10.1002/ejic.200700579
日期:2007.10
host a cesium ion in the cavity. Charge compensation of the thus formed 2}-metallacryptates (Cs⊂(Mg 2 (L 1 ) 3 ]) - is achieved through extra external cesium ions to give the neutral self-complementary building blocks [Cs⊂[(Δ,Δ)/(Λ, Λ ) -Mg 2 (L 1 ) 3 ]}Cs], which aggregate end-on across the external cesium ions to give the homochiral one-dimensional strings [Cs⊂[(Δ,Δ )-Mg 2 (L 1 ) 3 ]}Cs] n [Δ-(2)
双(1,3-二酮) H 2 L 1 在乙酸铯存在下与乙酸镁反应产生结晶一维配位聚合物rac-(2) n 。2}-metallacryptand 核心[Mg 2 (L 1 ) 3 ] 2- 由通过三个双(1,3-二酮) 二价阴离子(L 1 ) 2 - 连接的两个镁中心组成。这些 2}-metallacryptands 是同手性的,在镁中心具有 (A,A)-iac 或 (Λ,Λ)-fac 立体化学,并且它们能够在腔中容纳铯离子。由此形成的 2}-金属穴状化合物 (Cs⊂(Mg 2 (L 1 ) 3 ]) 的电荷补偿是通过额外的外部铯离子实现的,以提供中性的自互补结构单元 [Cs⊂[(Δ,Δ )/(Λ, Λ ) -Mg 2 (L 1 ) 3 ]}Cs],它们在外部铯离子上端对端聚集,得到同手性一维弦[Cs⊂[(Δ, Δ )-Mg 2 (L 1 ) 3 ]}Cs] n [Δ-(2) n ]