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Updated: Jul 5, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
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硫黄糖衍生型四素,是一种独特的多硫化物模型化合物

Stephen Lindahl1, Meg Shieh1, Tianli Zhang2

  • 1Department of Chemistry, Brown University, Providence, RI, 02912, USA.

Redox biology
|January 21, 2024
PubMed
概括

研究人员开发了一种新的基于碳水化合物的多硫化物,即硫化四糖 (TGS4). 这种稳定,水溶性化合物有效释放硫化和硫化,有助于氧化还原生物学研究.

关键词:
葡萄糖是一种葡萄糖.硫化是一种硫化.硫化化 (Hydropersulfide) 是一种硫化化合物.聚硫化物多硫化物提奥葡萄糖 (Thioglucose) 是一种葡萄糖.

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相关概念视频

Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are generally represented as RSH, where R is an alkyl substituent and —SH is the functional group. On the other hand, in sulfides, the central sulfur atom is bonded to two hydrocarbon groups on either side. Depending upon the type of group, sulfides can be either symmetrical or asymmetrical. Both thiols and sulfides display a bent geometry,...
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Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
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Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
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sp3d and sp3d 2 Hybridization
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Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
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