Supramolecular self-assembling of [HgII(RC6H4NNNC6H4R)2Py] [R = EtOC(O)] through reciprocal metal-η2-arene π-interactions and non classical C-H···O bonding: synthesis and X-ray characterization of a bis diaryl symmetric-substituted triazenide complex polymer of Hg(II)

Journal of the Brazilian Chemical Society

Manfredo Hörner¹  Gelson M. De Oliveira¹  Paulo C. M. Villis¹  Lorenzo Do C. Visentin¹ 

[1] ,Universidade Federal de Santa Maria Departamento de Química Santa Maria RS ,Brazil

关键词: triazenes;    triazenide-complexes;    supramolecular assembling of Hg complex-tectons;    Hg-η2-arene π-interactions;   

DOI  :  10.1590/S0103-50532008000800027

来源: SciELO

【 摘 要 】

Deprotonated 1,3-bis(4-ethoxycarbonylphenyl)triazene reacts with Hg(CH3COO)2 in tetrahydrofurane to give light-yellow crystals of {[HgII(RC6H4NNNC6H4R)2Py]2}n [R = EtOC(O)]. The [HgII(RC6H4NNNC6H4R)2Py] tectons are linked to pairs as centrosymmetric dimers through reciprocal metal-η2-arene π-interactions. The dimeric units - related to each other by a n-glide plane - are linked into chains along to the crystallographic direction [101] through non classical C-H···(O)COEt (hydrogen) bonds involving the ortho C-H group of the pyridine ligand. These chains are related by translation in the unit cell along the direction [100] through another kind of non classical hydrogen bonding, this one involving hydrogen and oxygen atoms of adjacent ethoxycarbonylphenyl groups of the same plane, resulting an extended supramolecular bidimensional (2D) assembling parallel to the crystallographic plane (011).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License