A NOVEL 3D ENERGETIC COORDINATION POLYMER CONTAINING Co(II) ATOMS IN A PENTANUCLEAR CLUSTER

coordination polymer pentanuclear clusters energetic materials.

ИЗУЧЕНИЕ ФАЗОВОГО СОСТАВА ТОНКИХ ПЛЕНОК SiCxFey И SiCxNy Fez С ПОМОЩЬЮ РЕНТГЕНОВСКОЙ ДИФРАКЦИИ В ГЕОМЕТРИИ СКОЛЬЗЯЩЕГО ПАДЕНИЯ ПУЧКА (GIXRD), ЭЛЕКТРОПРОВОДНОСТЬ ВОДНОГО РАСТВОРА ДЕЦИЛСУЛЬФАТА НАТРИЯ И ХАРАКТЕР ГИДРАТАЦИИ ЕГО АНИОНА, ...

The structure of complex 1 is characterized by elemental analysis, IR spectroscopy, and single crystal X-ray diffraction analysis. <...> The coordination polymer is built of a pentanuclear Co(II) cluster, four dnbpdc ligands, two hydroxyl groups, six coordination water and sixteen crystal water molecules. <...> Ligand oxygen atoms exhibit three types of coordination modes (monodentate, syn-syn bridging bidentate and bridging tridentate). <...> Moreover, the infinite threedimensional supra-molecular network is generated by coordination and hydrogen bonds. <...> The thermal stability of complex 1 is evaluated by differential scanning calorimetry and thermogravimetric analysis. <...> INTRODUCTION The interest in the rational design and synthesis of metal-organic coordination polymers (MOCPs) has been rapidly increasing in recent years due to multiform frameworks as well as potential applications of these compounds in functional materials [ 1—11]. <...> Particularly, MOCPs involving carboxylic acid compounds as ligands, such as various aliphatic, aromatic, and heterocyclic acids, exhibit diverse network topologies and remarkable applicable prospect. <...> Therefore, the construction and analysis of novel MOCPs consisting of carboxylate compounds is a hotspot in this field [12—15 ]. <...> Aromatic carboxylic acids bearing coordination diversity and moderate stability, such as biphenyl acids, are a good choice in the designed synthesis of MOCPs [16—18 ]. <...> In addition, the prospect of introducing the second function group into aryl rings provides further impetus. <...> For instance, we have synthesized a series of novel MOCPs as heat-resistant energetic materials based on the bpdc ligand [19—23 ]. <...> In this paper, we used dnbpdc as a ligand due to the following consideration: (a) the carboxylate oxygen atom of dnbpdc can adopt several coordination modes (bridging, monodentate, and chelating) which allow the construction of multidimensional systems; (b) in deprotonated dnbpdc, two phenyl rings are not coplanar with each other owing to the steric hindrance of nitro groups; a distortion of the Wu R.-F., Shi H.-P., Zhang J.-R., Chang F.-F., 2015 1190 R.-F. WU, H.-P. SHI, J.-R. ZHANG, F.-F. CHANG diphenyl spacer about the central bond allows dnbpdc to link metal ions or metal clusters into macrocycles or one dimensional chains <...>

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