A novel three-dimensional(3D) supramolecular architecture, {[Nd(OH-BDC)(OH-HBDC)(H2O)2]·2HaO)n(1) (OH-H2BDC=5-hydroxyisophthalic acid), which was formed through hydrogen bonds and π-π stacking betw...A novel three-dimensional(3D) supramolecular architecture, {[Nd(OH-BDC)(OH-HBDC)(H2O)2]·2HaO)n(1) (OH-H2BDC=5-hydroxyisophthalic acid), which was formed through hydrogen bonds and π-π stacking between two-dimensional(2D) layers, was hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Windmill building blocks, which consist of two nine-coordinated metal centers and four OH-H2BDC groups are connected through two carboxyl groups, to lead to a one-dimensional infinite inorganic chain(… M--O--C--O--M…) along the [100] direction. An observed intense blue luminescence with an emission band peaked at 390 nm for compound 1 may results from ligand-to-metal charge transfer(LMCT). Variable-temperature magnetic susceptibility of compound 1 was investigated and the value was deviated from the Curie-Weiss law.展开更多
主要研究了一种新型建筑楼板隔音涂料的制备,包括材料选择、制备工艺和性能测试。结果表明,采用该隔音涂料计权撞击声压级改善量△L_(w)=12 d B、燃烧性能达到A2级,环保性能符合GB18582—2020内墙涂料要求。为建筑楼板隔音涂料的应用提...主要研究了一种新型建筑楼板隔音涂料的制备,包括材料选择、制备工艺和性能测试。结果表明,采用该隔音涂料计权撞击声压级改善量△L_(w)=12 d B、燃烧性能达到A2级,环保性能符合GB18582—2020内墙涂料要求。为建筑楼板隔音涂料的应用提供了理论依据和实践指导。展开更多
基金the National Natural Science Foundation of China(Nos.20371007 and 20476011)
文摘A novel three-dimensional(3D) supramolecular architecture, {[Nd(OH-BDC)(OH-HBDC)(H2O)2]·2HaO)n(1) (OH-H2BDC=5-hydroxyisophthalic acid), which was formed through hydrogen bonds and π-π stacking between two-dimensional(2D) layers, was hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Windmill building blocks, which consist of two nine-coordinated metal centers and four OH-H2BDC groups are connected through two carboxyl groups, to lead to a one-dimensional infinite inorganic chain(… M--O--C--O--M…) along the [100] direction. An observed intense blue luminescence with an emission band peaked at 390 nm for compound 1 may results from ligand-to-metal charge transfer(LMCT). Variable-temperature magnetic susceptibility of compound 1 was investigated and the value was deviated from the Curie-Weiss law.