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Hydrogen storage capacity of novel mixed ligand complexes of lead(II): Molecular structure of [Pb2(tsac)4(µ-dppe)]
Inorganic Chemistry Communications ( IF 3.8 ) Pub Date : 2021-01-09 , DOI: 10.1016/j.inoche.2021.108444
Subhi A. Al-Jibori , Mohamed M. Amen , Mustafa A. Alheety , Ahmet Karadag , Christoph Wagner

The complex [Pb(tsac)2H2O] has been used as a synthon for the synthesis of a series of lead(II) thiosaccharinate mixed ligand complexes with the tertiary phosphines; PPh3, Ph2P(CH2)nPPh2, n = 1, dppm; n = 2, dppe; n = 3, dppp or the heterocyclic; 2-aminobenzothiophene (abtH), 2-acetamidopyrimidine (aampH) and 2-benzimidazolethiol (bimsH). The prepared complexes were characterized using; IR, 1H-, 31P-{1H} NMR, molar conductivity, elemental analysis in addition, the crystal structure of the complex [Pb2(tsac)4(µ-dppe)] was resolved by x-ray diffraction analysis of a single crystal. [Pb2(tsac)4(µ-dppe)] crystallizes in the triclinic space group P-1 a = 9.0955(5), b = 11.4197(6), c = 15.3174(7) Å, Z = 2 and refined to R1 = 0.0422. Herein, thiosaccharine shows the ability to coordinate to lead(II) center in a variety of modes, which are monodentate, chelate- bidentate via a nitrogen atom and/ or a sulfur atom of the thiole group. Furthermore, the complexes [Pb(tsac)2H2O] and [Pb2(tsac)4(µ-dppe)] were used to examine their ability to store hydrogen. The results show that [Pb(tsac)2H2O] and [Pb2(tsac)4(µ-dppe)] are able to store 0.29 and 1.12 wt% H2, respectively.



中文翻译:

铅(II)的新型混合配体配合物的储氢能力:[Pb 2(tsac)4(µ-dppe)]的分子结构

配合物[Pb(tsac)2 H 2 O]已被用作合成子,用于合成一系列硫代糖精铅(II)与叔膦的混合配体。PPh 3,Ph 2 P(CH 2n PPh 2,n = 1,dppm;n = 2,dppe;n = 3,dppp或杂环;2-氨基苯并噻吩(abtH),2-乙酰氨基嘧啶(aampH)和2-苯并咪唑硫醇(bimsH)。所制备的复合物的特征在于:IR,1 H-,31 P- { 1 H} NMR,摩尔电导率,另外还要进行元素分析,配合物的晶体结构[Pb 2(tsac)4(μ-dppe)]通过单晶的X射线衍射分析来解析。[Pb 2(tsac)4(µ-dppe)]在三斜晶空间群P-1中结晶,a = 9.0955(5),b = 11.4197(6),c = 15.3174(7)Å,Z = 2并精制为R 1  = 0.0422。在本文中,硫代糖精显示出以多种模式与铅(II)中心配位的能力,所述模式是单齿的,经由硫醇基团的氮原子和/或硫原子的螯二齿。此外,使用络合物[Pb(tsac)2 H 2 O]和[Pb 2(tsac)4(μ-dppe)]来检查它们的储氢能力。结果表明[Pb(tsac)2 H 2 O]和[Pb 2(tsac)4(μ-dppe)]分别能够存储0.29和1.12 wt%的H 2

更新日期:2021-01-12
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