Synthesis and crystal structures of sumpramolecular compounds of cucurbit[n]urils (n = 6, 8) with polynuclear strontium aqua complexes |
| |
| Authors: | Gerasko O A Virovets A V Samsonenko D G Tripol"skaya A A Fedin V P Fenske D |
| |
| Institution: | (1) Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 prosp. Akad. Lavrent"eva, Novosibirsk, 630090, Russian Federation |
| |
| Abstract: | Crystals of the {Sr4(H2O)12(NO3)4](C36H36N24O12)}(NO3)4·3H2O and {Sr2(H2O)12]Sr(H2O)3(NO3)2]2(C48H48N32O16)}(NO3)4·8H2O were prepared by slow concentration of aqueous solutions containing strontium nitrate and macrocyclic cavitands, viz., cucurbit6]uril and cucurbit8]uril (C6H6N4O2]
n
, n = 6 and 8), respectively. According to the results of X-ray diffraction analysis, the crystal structures of these supramolecular compounds are built from polymeric chains, which consist of the alternating cucurbitn]uril molecules and Sr2+ cations linked through the bridging aqua ligands and nitrate anions. The supramolecular compound of cucurbit8]uril provides the first example of compounds in which this macrocycle is bound to metal aqua complexes. |
| |
| Keywords: | aqua complexes strontium cucurbit[6]uril cucurbit[8]uril supramolecular compounds crystal structure X-ray diffraction analysis |
| 本文献已被 SpringerLink 等数据库收录！ |
|
