用葫芦脲进行模板构象。
Templating conformations with cucurbiturils.
机构信息
Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, USA.
出版信息
Chem Commun (Camb). 2019 Oct 8;55(81):12160-12163. doi: 10.1039/c9cc06766c.
The trans- and cis conformations of 5,5'-substituted 2,2'-dithiophenes can be stabilized when those are secured with two Cucurbit[8]uril macrocycles (CB[8]) on top of rigid 2,6- and 2,7-substituted naphthalenes, which respectively mimic the trans and cis conformations of the dithiophene. The substituents are Pt(ii) terpyridyl groups bearing CB[8]-binding sites at their 4'-position, as those form dimers in the presence of the macrocycle through Pt-Pt and dispersive interactions between the terpyridyl ligands.
当两个葫芦[8]脲大环（CB[8]）固定在刚性 2,6-和 2,7-取代萘上时，可以稳定 5,5'-取代的 2,2'-二噻吩的顺式和反式构象，这分别模拟了二噻吩的顺式和反式构象。取代基是 Pt(ii) 三联吡啶基团，在其 4'-位带有 CB[8]结合位点，因为这些基团在存在大环时通过 Pt-Pt 和三联吡啶配体之间的分散相互作用形成二聚体。
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