The interplay of secondary Hg⋯S, Hg⋯N and Hg⋯π bonding interactions in supramolecular structures of phenylmercury(ii) dithiocarbamates
作者:Vikram Singh、Abhinav Kumar、Rajendra Prasad、Gunjan Rajput、Michael G. B. Drew、Nanhai Singh
DOI:10.1039/c1ce05678f
日期:——
secondary bonding. In order to elucidate the nature of these secondary bonding interactions and the electronic absorption spectra of the complexes, ab initio quantum chemical calculations at the MP2 level and density functional theory calculations were carried out for 1–3. Complexes 1 and 2 exhibited photoluminescent properties in the solid state as well as in the solution phase. Studies indicate that
三种新的苯基汞(II)和一种汞(II)二硫代氨基甲酸酯配合物。PhHg S 2 CN(PyCH 2)Bz(1),PhHg S 2 CN(PyCH 2)CH 3(2),PhHg S 2 CN(Bz)CH 3(3)和[Hg(NCS 2(PyCH 2)) Bz)2 ](4)(Py =吡啶; 已合成Bz =苄基),并通过元素分析,IR,电子吸收,1 H和13 C NMR光谱进行了表征。的晶体结构1,2和3在该分子的中心,其中,所述金属原子结合到二硫代氨基甲酸配体的硫原子和芳香环的碳原子呈线性S-汞柱-C的核心。相反,4的晶体结构在分子的Hg(II)中心显示出线性的S–Hg–S核。弱的分子间汞柱⋯N(PY)的相互作用的分子链接到的情况下的直链1,而在形成二聚体的链,2通过分子间的Hg⋯N(Py)和Hg⋯S相互作用。3通过分子间的Hg⋯S二次键合形成常规的面对面二聚结构,而4通过面对面的Hg⋯S二次键