Sulfur Conversion to Multifunctional Poly(O-thiocarbamate)s through Multicomponent Polymerizations of Sulfur, Diols, and Diisocyanides,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Sulfur Conversion to Multifunctional Poly(O-thiocarbamate)s through Multicomponent Polymerizations of Sulfur, Diols, and Diisocyanides
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2021-03-03 , DOI: 10.1021/jacs.1c00243
Jie Zhang ₁ , Qiguang Zang ₁ , Fulin Yang ₁ , Haoke Zhang ₁ , Jing Zhi Sun ₁ , Ben Zhong Tang _{1,

2}

Affiliation

Sulfur, which is generated from the waste byproducts in the oil and gas refinery industry, is an abundant, cheap, stable, and readily available source in the world. However, the utilization of excessive amounts of sulfur is mostly limited, and developing novel methods for sulfur conversion is still a global concern. Here, we report a facile one-step conversion from elemental sulfur to functional poly(O-thiocarbamate)s through a multicomponent polymerization of sulfur, diols, and diisocyanides, which possesses a series of advantages such as mild condition (55 °C), short reaction time (1 h), 100% atom economy, and transition-metal free in the catalyst system. Seven poly(O-thiocarbamate)s are constructed with high yields (up to 95%), large molecular weight (up to 53100 of M_w), good solubility in organic solvents, and completely new polymer structures. The poly(O-thiocarbamate)s possess a high refractive index above 1.7 from 600 to 1700 nm by adjusting the sulfur content. By incorporating tetraphenylethene (TPE) moieties into the polymer structure, the poly(O-thiocarbamate)s can also be designed as fluorescent sensors to detect harmful metal cation of Hg²⁺ in a turn-on mode with high sensitivity (LOD = 32 nM) and excellent selectivity (over interference cations of Pb²⁺, Au³⁺, Ag⁺). Different from the previous reports, the exact coordination structure is first identified by single-crystal X-ray diffraction, which is revealed in a tetracoordination fashion (two sulfur and two chloride) using a model coordination compound.

中文翻译：

通过硫、二醇和二异氰化物的多组分聚合将硫转化为多功能聚（O-硫代氨基甲酸酯）

硫是从石油和天然气精炼行业的废弃副产品中产生的，是世界上一种丰富、廉价、稳定且易于获得的来源。然而，过量硫的利用大多受到限制，开发硫转化的新方法仍然是全球关注的问题。在这里，我们报告了通过硫、二醇和二异氰化物的多组分聚合，从元素硫到功能性聚（O-硫代氨基甲酸酯）的轻松一步转化，其具有一系列优点，如条件温和（55°C），反应时间短（1 小时），100% 原子经济性，催化剂体系中不含过渡金属。七聚（ø -thiocarbamate）s的构造有高的产率（高达95％），大分子量（高达53100中号_w )，在有机溶剂中具有良好的溶解性，以及全新的聚合物结构。通过调节硫含量，聚（O-硫代氨基甲酸酯）在 600 至 1700 nm 范围内具有高于 1.7 的高折射率。通过在聚合物结构中加入四苯乙烯 (TPE) 部分，聚 ( O-硫代氨基甲酸酯) 还可以设计为荧光传感器，以高灵敏度 (LOD = 32 nM) 的开启模式检测 Hg ^{2+ 的}有害金属阳离子) 和出色的选择性（对 Pb ²⁺、Au ³⁺、Ag ^{+ 的}干扰阳离子）。与之前的报道不同，精确的配位结构首先通过单晶 X 射线衍射鉴定，使用模型配位化合物以四配位方式（两个硫和两个氯化物）显示。

更新日期：2021-03-17

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南