On the importance of antiparallel C O⋯C–F interactions in N1-(3-hydroxypropyl)-5-fluorouracilate–Hg(II) complex: A combined X-ray and DFT study
作者:Antonio Bauzá、Angel Terrón、Miquel Barceló-Oliver、Angel García-Raso、Antonio Frontera
DOI:10.1016/j.ica.2015.04.028
日期:2016.10
Abstract Herein we report the synthesis and X-ray characterization of a neutral mercury(II) complex of composition [Hg(L)2]n (1), [L = N1-(3-hydroxypropyl)-5-fluorouracilate]. The Hg(II) is bound to the N(3) atoms of both ligands in an essentially linear geometry. Mercury also interacts through short contacts with the O(4) atoms of the uracil rings. The two bases are almost coplanar. Surprisingly, two
摘要本文报道了组成为[Hg(L)2] n(1),[L = N1-(3-羟丙基)-5-氟尿嘧啶]的中性汞(II)配合物的合成和X射线表征。Hg(II)以基本上线性的几何结构结合到两个配体的N(3)原子上。汞还通过与尿嘧啶环的O(4)原子短暂接触而相互作用。这两个基底几乎是共面的。令人惊讶地,来自两个不同单元的两个羟基也弱结合在顶端位置。X射线单晶晶体学分析表明该分子复合物聚集为配位聚合物。固态观察到的填料组件已通过理论DFT计算进行了分析和研究。描述了前所未有的反平行CO⋯C-F相互作用,因为它们对配合物的晶体堆积有很大的影响。