Over one million tons of CS₂ are produced annually, and emissions of this volatile and toxic liquid, known to generate acid rain, remain poorly controlled. As such, materials capable of reversibly capturing this commodity chemical in an energy-efficient manner are of interest. Recently, we detailed diamine-appended metal-organic frameworks capable of selectively capturing CO₂ through a cooperative insertion mechanism that promotes efficient adsorption-desorption cycling. We therefore sought to explore the ability of these materials to capture CS₂ through a similar mechanism. Employing crystallography, spectroscopy, and gas adsorption analysis, we demonstrate that CS₂ is indeed cooperatively adsorbed in N,N-dimethylethylenediamine-appended M₂(dobpdc) (M = Mg, Mn, Zn; dobpdc^4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate), via the formation of electrostatically paired ammonium dithiocarbamate chains. In the weakly thiophilic Mg congener, chemisorption is cleanly reversible with mild thermal input. This work demonstrates that the cooperative insertion mechanism can be generalized to other high-impact target molecules.

中文翻译：

---

在二胺附加的金属有机骨架中协同吸附二硫化碳。

每年生产超过一百万吨的CS ₂，这种挥发性和有毒液体的排放（已知会产生酸雨）仍然受到控制不佳。因此，人们感兴趣的是能够以节能方式可逆地捕获该商品化学品的材料。最近，我们详细介绍了添加二胺的金属有机骨架，该骨架能够通过促进有效吸附-解吸循环的协同插入机制选择性捕获CO ₂。因此，我们寻求探索这些材料通过相似机制捕获CS ₂的能力。利用晶体学，光谱学和气体吸附分析，我们证明了CS ₂确实 通过静电形成被N，N-二甲基乙二胺加成的M ₂（dobpdc）（M = Mg，Mn，Zn; dobpdc ^4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate）协同吸附配对的二硫代氨基甲酸铵链。在弱亲硫性镁同类物中，化学吸收在温和的热输入下可以完全逆转。这项工作表明协同插入机制可以推广到其他高影响力的目标分子。