Novel dithiocarbamate–Hg(II) complexes containing mixed ligands: Synthesis, spectroscopic characterization, and H2 storage capacity,Journal of the Chinese Chemical Society

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Novel dithiocarbamate–Hg(II) complexes containing mixed ligands: Synthesis, spectroscopic characterization, and H2 storage capacity
Journal of the Chinese Chemical Society ( IF 1.6 ) Pub Date : 2019-11-28 , DOI: 10.1002/jccs.201900349
Amenah I. A. Al‐Nassiry ₁ , Ahmed S. M. Al‐Janabi ₂ , Omer Y. Thayee Al‐Janabi ₃ , Peter Spearman ₄ , Mustafa A. Alheety ₅

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A tetrahedral Hg(II) diethyl dithiocarbamate (Et₂Dt) complex containing triphenylphosphine (PPh₃) of the composition [HgCl(κ²‐Et₂Dt)₂(PPh₃)] (1) is prepared. Furthermore, complex (1) is used as a synthone to prepare a novel series of complexes of the following composition [Hg(Et₂Dt)L(PPh₃)] {L = saccharinate (2), thiosaccharinate (3), benzisothiazolinate (4), benzothiozole‐2‐thiolate (5), and benzooxazole‐2‐thiolate (6) anions}. The resulted complexes (1)–(6) are characterized by elemental analysis, molar conductivity, powder X‐ray diffraction, fourier transform Infrared, and NMR (¹H and ³¹P) spectroscopic techniques. The Et₂Dt ligand is coordinated as bidentate chelate through the sulfur atoms, whereas the L ligands are bonded as monodentate ligands to afford a tetrahedral geometry around the Hg(II) ion. Nitrogen adsorption–desorption isotherm for two of as‐prepared complexes (2) and (3) are measured first to get their Brunauer–Emmett–Teller surface area. Moreover, the mentioned two complexes are evaluated for their ability to store hydrogen gas at 77 K. However, the results of the hydrogen storage tests proved that the selected complexes are all capable of storing hydrogen, but in varying degrees, where complex (2) exhibited a storage capacity of 4.22 wt% under 88 bar.

中文翻译：

含有混合配体的新型二硫代氨基甲酸酯-Hg（II）配合物：合成，光谱表征和H2储存容量

四面体汞（II）二硫代氨基甲酸二乙酯（ET ₂ DT）络合物含有三苯基膦（PPH ₃的组合物）[升汞（κ ² -Et ₂ DT）₂（PPH ₃）]（1）制备。此外，将配合物（1）用作合成酮，以制备具有以下组成的新型配合物[Hg（Et ₂ Dt）L（PPh ₃）] {L =糖精（2），硫代糖精（3），苯并异噻唑啉酸酯（4），苯并噻唑-2-硫醇盐（5）和苯并恶唑-2-硫醇盐（6）阴离子}。通过元素分析，摩尔电导率，粉末X射线衍射，傅立叶变换红外光谱和NMR（¹ H和³¹ P）光谱技术对所得的复合物（1）-（6）进行表征。Et ₂ Dt配体通过硫原子作为双齿螯合物配位，而L配体作为单齿配体键合，从而在Hg（II）离子周围形成四面体几何形状。两种配合物（2）和（3）的氮吸附-解吸等温线）首先进行测量，以获取其Brunauer-Emmett-Teller表面积。此外，评估了上述两种配合物在77 K下的储氢能力。然而，储氢测试的结果证明，所选的配合物均能够储氢，但程度不同，其中配合物（2）在88 bar下显示4.22 wt％的存储容量。

更新日期：2019-11-28

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