Synthesis and crystal structure of an <i>M</i>
<sub>4</sub>
<i>L</i>
<sub>6</sub> tetrahedral cage with outward-facing pockets from a substituted pyrazolyl–pyridine ligand
作者:Nawal K. Al Rasbi、Michael D. Ward
DOI:10.1107/s2053229618009683
日期:2018.8.1
characterized. The self‐assembly of L with cobalt(II) gave rise to a tetrahedral cage (hexakisμ‐4‐benzyl‐2‐[1‐(2‐[3‐(4‐benzylpyridin‐2‐yl)‐1H‐pyrazol‐1‐yl]methyl}benzyl)‐1H‐pyrazol‐3‐yl]pyridine}perchloratotetracobalt(II) octakis(perchlorate) acetonitrile undecasolvate, [Co4(ClO4)(C38H32N6)6](ClO4)7·11CH3CN) with approximate T symmetry. The X‐ray crystal structure of the cage, i.e. [Co4L6ClO4](ClO4)7, shows
目前,金属-多齿配体的自组装产生超分子四面体络合物。一种新的配体,4-苄基-2- [1-(2-[3-(4-苄基吡啶-2-基)-1 H-吡唑-1-基]甲基}苄基)-1 H-吡唑-3已合成并充分表征了[ yl]吡啶(L),在吡啶环的4位上被苄基取代的螯合吡唑基-吡啶单元。L与钴(II)的自组装产生了一个四面体的笼状结构(六-4--苄基-2--2-(1-(2-[3-(4-苄基吡啶-2-基)1- H) [吡唑-1-基]甲基}苄基] -1 H-吡唑-3-基]吡啶}高氯四钴(II)八(高氯酸盐)乙腈十一烷溶剂化物[Co 4具有近似T对称性的(ClO 4)(C 38 H 32 N 6)6 ](ClO 4)7 ·11CH 3 CN)。保持架,所述的X射线晶体结构,即[CO 4大号6 CLO 4 ](CLO 4)7,示出了取代的苄基被定向从朝向钴它们各自配体的中心远离II顶点,使得小向外面对来自四面体角处的三个苄基环的袋。