金属有机配位聚合物荧光及小分子识别

金属有机配位聚合物不仅结构多样,而且在光学、电学、磁学、气体储存和分离等领域有着巨大的应用前景。众所周知,配位聚合物的性能与结构有着紧密的联系。当前晶体工程学的重要任务是选择合适的有机配体和金属离子,根据晶体工程原理和自组装规律,通过调控影响反应过程的各种因素,从而获得结构新颖、性能独特金属有机配位聚合物。利用金属有机配位聚合物的荧光性质在小分子识别方面已进行了广泛的研究。本文综述了金属有机配位聚合物的荧光产生原理及小分子识别方面的应用。     

配位聚合物的分类以及合成方法

配位聚合物由金属离子和有机配体通过配位键自组装而形成,结构多样,文章主要通过综述配位聚合物配体的分类情况以及配位聚合物的合成方法来介绍不一样的配位聚合物。     

配位聚合物的合成及其性质

通过对配位聚合物的合成方法、影响因素、性质应用等内容的介绍,指出了配位聚合物作为新型功能性材料得到广泛关注的原因。并对配位聚合物的发展前景作了展望。     

磺酸银配位聚合物的研究进展

磺酸银类配位聚合物由于其灵活的配位方式、有趣的无机-有机层状结构、选择性和可逆性客体吸附特性以及它们插入客体分子的能力,近年来已经引起了化学家和材料学家的广泛关注。主要综述了当前磺酸银以及包含中性配体的磺酸银类配位聚合物的研究进展,总结了磺酸类配体的配位特点,并对其今后的发展进行了预测与展望。     

配位聚合物的研究进展

配位聚合物结构多样,性质独特,近年来得到科学家的普遍关注。本文简要介绍了配位聚合物的分类、合成方法及结构和性能上的特点,并详细评述了配位聚合物的研究进展。     

稀土配位聚合物及其研究进展

稀土配位聚合物以稀土元素独特的性质和配位结构的多样性以及加工成型容易、稳定性高等优点,具有广阔的应用前景。本文详细地综述了稀土配位聚合物的特点、主要类型及其制备方法,并展望了在荧光、磁性、气体吸附与分离和反应选择性催化等方面的潜在应用。     

多孔荧光配位聚合物的研究进展

多孔配位聚合物(Porous Coordination Polymer,PCP),是一种在无机材料科学和配位化学交叉领域出现的新材料。可通过调节配体来调节配位聚合物的结构与性能,同时可将具有生色基团的有机配体引入骨架,构筑的化合物骨架兼有多孔和荧光性质。故在气体吸附,分子识别,磁性和催化以及在光捕获和化学传感器等领域具有潜在应用。本文简要介绍了当前多孔配位聚合物在荧光传感性能及其应用方面的研究进展,并对MOFs在化学荧光传感方面的应用发展进行了展望。     

含氮类配位聚合物的合成研究

金属-有机配位聚合物是将金属配位点通过有机化合物为桥连载体进行配位连接而形成的一种无机-有机杂化框架材料。由于金属-有机配位聚合物具有新颖的框架结构,并且在吸附、催化、发光等诸多功能领域有较好的应用前景,因此近些年来,有关配位聚合物晶体工程的研究很火热,目前已经成为新材料科学领域的研究热点之一。其中,含氮类配位聚合物就是重要的一种功能配合物,受到了广泛的关注与研究。     

配位聚合物的研究进展

综述了近年来比较热门的研究领域——配位聚合物,它是由过渡金属和有机配体自组装而形成的,具有独特的空间几何构型,在非线性光学材料、磁性材料、超导材料,微孔材料及非对称催化等诸多方面都有广阔的应用前景。本文就不同配体的配位聚合物进行了分类研究。     

羧酸类配位聚合物的研究进展

羧酸类金属配位聚合物是一种新型功能性分子材料,近年来得到科学家的普遍关注。本文对羧酸类金属配位聚合物的分类进行了综述,综述了羧酸类金属配位聚合物研究的重要性和国内外羧酸类金属配位聚合物的研究工作,对苯多羧酸类、吡啶羧酸类、草酸类、脂肪族二羧酸类配合物在手性拆分和催化、分子磁体、非线性光学方面的研究进行了详细介绍,列举了近年来这类配位聚合物的研究成果和开发进展,并对其发展趋势进行了展望。     

Applications of Metal-Organic Frameworks as Drug Delivery Systems

In the last decade, metal organic frameworks (MOFs) have shown great prospective as new drug delivery systems (DDSs) due to their unique properties: these materials exhibit fascinating architectures, surfaces, composition, and a rich chemistry of these compounds. The DSSs allow the release of the active pharmaceutical ingredient to accomplish a desired therapeutic response. Over the past few decades, there has been exponential growth of many new classes of coordination polymers, and MOFs have gained popularity over other identified systems due to their higher biocompatibility and versatile loading capabilities. This review presents and assesses the most recent research, findings, and challenges associated with the use of MOFs as DDSs. Among the most commonly used MOFs for investigated-purpose MOFs, coordination polymers and metal complexes based on synthetic and natural polymers, are well known. Specific attention is given to the stimuli- and multistimuli-responsive MOFs-based DDSs. Of great interest in the COVID-19 pandemic is the use of MOFs for combination therapy and multimodal systems.     

Review on Polymer Materials for Solid Desiccant Cooling System

As an alternative form of vapor compression air conditioning devices, solid desiccant cooling (SDC) techniques have increasingly been explored recently. The overall performances of SDC primarily rely on the capability of dehumidification and regeneration of desiccant. A desiccant with a great uptake capability and excellent regeneration potential is preferred in an SDC system. Although traditional desiccants like silica gels and zeolites are able to absorb moisture at moderate levels, hygroscopic polymers show a superior ability in moisture sorption and desorption. Significant research has been conducted to investigate the hygroscopic polymers in SDC for household and industrial applications. Here, first, an introduction to SDC systems is presented, and then hygroscopic polymers from natural and synthetic origins are discussed. Synthetic polymers discussed are metal–organic frameworks (MOFs), covalent organic frameworks (COFs), covalent triazine frameworks (CTFs), amorphous porous organic polymers (POPs), polyelectrolytes, and polymer-based composites. Their dehumidification behaviors in SDC systems, primarily desiccant-coated heat exchanger (DCHE) systems, are compared and summarized. Binders employed in SDC systems are also summarized, as a proper binder enhances the overall performance of the desiccant system. It can be anticipated that hygroscopic polymers and binder materials would witness extensive applications in the future.     

Design and synthesis of porous polymeric materials and their applications in gas capture and storage: a review

The design and synthesis of porous organic materials that have increasing physical and chemical characteristics have been discussed. For example, a variety of porous organic polymers, metal–organic frameworks, conjugated microporous polymers, and polymers of intrinsic microporosity have been designed and synthesized using simple and efficient procedures. Such materials have unique gas adsorption properties and can be used in gases separation and storage. In addition, they have high surface area, porosity, and selectivity towards carbon dioxide compared to other gases such as nitrogen and methane.     

Synthesis and characterization of coordination polymers of Hg(II) with poly(thiooxamides)

Coordination polymers of Hg(II) with dithiooxamide, poly(ethylene thiooxamide), poly(butane thiooxamide), and poly(hexane thiooxamide) have been synthesized. All coordination polymers are solid compounds insoluble in common organic solvents. Coordination polymers have been characterized by elemental analysis, IR spectra, and thermogravimetric analysis and structures have been proposed leading to coordination of metal through S alone as well as N and S both. Thermal stability of the polymers has also been discussed.     

基于Co(Ⅱ)配合物前驱体的微纳米Co_3O_4功能材料的研究进展

金属有机骨架化合物(MOFs)是由有机配体和金属节点通过自组装形成的一类具有周期性结构和较大比表面积的材料。目前,选择MOFs材料作为前驱体,经高温焙烧合成纳米金属氧化物或纳米复合金属氧化物材料是一大研究热点。综述了近年来以Co基配位聚合物为前驱体制备纳米Co_3O_4或Co_3O_4/碳纳米复合材料的方法,以及Co_3O_4纳米材料在锂离子电池负极材料、超级电容器、电催化析氧反应、气敏材料及催化剂材料等研究领域的应用,并对其今后的发展进行了展望。     

Nanoporous organic polymer networks

Nanoporous organic polymer networks are a class of materials consisting solely of the lighter elements in the periodic table. These materials have potential uses in areas such as storage, separation, and catalysis. Here, we review the different classes of nanoporous polymer networks including covalent organic frameworks, hypercrosslinked polymers, conjugated microporous polymers, and polymers of intrinsic microporosity. The growing variety in synthetic routes to these materials allows a range of different polymer networks to be formed, including crystalline and amorphous structures. It is also possible to incorporate many different kinds of functional groups in a modular fashion. So far, most networks have been examined from the perspective of gas sorption, and this area is discussed critically and in depth in this review. The use of nanoporous organic polymers for applications such as catalysis and separations is an important developing area, and we discuss recent developments as well as highlighting potential future opportunities.     

金属-有机配合物的设计合成及其应用前景

介绍了通过合理选择特征配体、配体构犁和金属离子的配位模式及单晶到单晶的转化等结构影响因素控制金属-有机配合物的结构,论述了金属有机配合物在国内外的研究进展,介绍了其在各个方面的应用前景.     

Coordination Complexes as a New Generation Photosensitizer for Photodynamic Anticancer Therapy

Photodynamic therapy (PDT) has become an alternative to standard cancer treatment methods such as surgery, chemotherapy and radiotherapy. The uniqueness of this method relies on the possibility of using various photosensitizers (PS) that absorb and convert light emission in radical oxygen-derived species (ROS). They can be present alone or in the presence of other compounds such as metal organic frameworks (MOFs), non-tubules or polymers. The interaction between DNA and metal-based complexes plays a key role in the development of new anti-cancer drugs. The use of coordination compounds in PDT has a significant impact on the amount ROS generated, quantum emission efficiency (Φem) and phototoxic index (PI). In this review, we will attempt to systematically review the recent literature and analyze the coordination complexes used as PS in PDT. Finally, we compared the anticancer activities of individual coordination complexes and discuss future perspectives. So far, only a few articles link so many transition metal ion coordination complexes of varying degrees of oxidation, which is why this review is needed by the scientific community to further expand this field worldwide. Additionally, it serves as a convenient collection of important, up-to-date information.     

含磷多孔有机聚合物的合成及其在多相催化中的应用

含磷多孔有机聚合物不仅具有发达的孔隙和表面结构,还具有很强的可调变性和可修饰性,在多相催化中有着广泛的应用前景。目前还没有概述含磷多孔有机聚合物的制备及其在多相催化中应用的综述,本文对该领域近十年来的研究进展进行了归纳和梳理。指出含磷多孔有机聚合物的合成方法发展十分迅速,包括偶联缩聚、锂盐参与的缩聚、Friedel-Crafts缩聚、溶剂热烯烃聚合、Scholl缩聚、酚醛聚合、醛胺缩合、聚吡喃盐的磷代以及多段式聚合等。基于其骨架中含有大量膦配体,含磷多孔有机聚合物能负载一系列金属化合物制成负载型金属纳米颗粒催化剂,甚至单原子或单位点金属催化剂。表明聚合物基催化剂中,膦配体不仅能诱导金属在聚合物中均匀分布,并且在调控金属的表面电子性质和位阻性质等方面发挥重要作用,进而对催化剂的活性和选择性产生影响。