Plasticity in [(R
<sub>
4–
<i>x</i>
</sub>
R
<sup>1</sup>
<i>
<sub>x</sub>
</i>
)
<sub>4</sub>
N]
<sub>4</sub>
[Cu
<sub>4</sub>
{S
<sub>2</sub>
C
<sub>2</sub>
(CN)
<sub>2</sub>
}
<sub>4</sub>
] (
<i>x</i>
= 0–4) is Molded by a Guest Cation on an Elastic Anionic Host
作者:Biplab K. Maiti、Kuntal Pal、Sabyasachi Sarkar
DOI:10.1002/ejic.200800094
日期:2008.5
r host-guest assemblies [Me4N]4[Cu4(mnt)4] (1), [Me3EtN]4[Cu4(mnt)4] (2), [Me2Et2N]4[Cu4(mnt)4] (3), [MeEt3N]4[Cu4(mnt)4] (4) and [Et4N]4[Cu4(mnt)4] (5), which have been characterized by X-ray structural studies in the solid state. The host cavity shrinks and expands, with varying Cu···Cu separations ranging from 2.754 to 3.952 A, to accommodate the relevant guest ion during the crystallization process
弹性阴离子 [Cu4(mnt)4]4– mnt =maleonitriledithiolato, [S2C2(CN)2]2–} 作为一系列客体阳离子 [(R4–xR1x)4N]+ (R = Et , R1 = Me; x = 0–4) 形成复合物 [(R4–xR1x)4N]4[Cu4S2C2(CN)2}4]。存储在阳离子中的分子结构设计信息通过氢键模塑到弹性阴离子主体框架上,以创建塑料超分子实体。CuCl 与 Na2(mnt) 以 1:1 的金属/配体比反应,然后与各自的阳离子相互作用,得到依赖于阳离子的四核主客体组装体 [Me4N]4[Cu4(mnt)4] (1) , [Me3EtN]4[Cu4(mnt)4] (2), [Me2Et2N]4[Cu4(mnt)4] (3), [MeEt3N]4[Cu4(mnt)4] (4) 和 [Et4N]4 [Cu4(mnt)4] (5),已通过固态的