Two new complexes,namely[Cd_(2)(L)(pycy)(Cl)]·2H_(2)O(1)and[Cu(HL)(H_(2)btac)]·2 H_(2)O,have been synthesized by the reaction of the corresponding metal salts with mixed ligands including 1-(1 H-imidazol-4-y...Two new complexes,namely[Cd_(2)(L)(pycy)(Cl)]·2H_(2)O(1)and[Cu(HL)(H_(2)btac)]·2 H_(2)O,have been synthesized by the reaction of the corresponding metal salts with mixed ligands including 1-(1 H-imidazol-4-yl)-4-(4 H-tetrazol-5-yl)benzene(HL),2,6-pyridinedicarboxylic acid(H_(2)pycy)and 1,2,4,5-benzenetetracarboxylic acid(H4 btac),and characterized by single-crystal X-ray diffraction,IR spectroscopy,elemental analysis and powder X-ray diffraction(PXRD).Complex 1 crystallizes in triclinic,space group P1 with a=9.8938(7),b=10.1662(7),c=12.4520(8)A,α=92.7070(10),β=108.1310(10),γ=105.3230(10)°,V=1136.44(13)A^(3),Z=2,C_(17)H_(12)N_(7)O_(6)Cl Cd_(2),M_(r)=670.59,D_(c)=1.960 g/cm^(3),μ=2.037 mm^(-1),S=1.062,F(000)=648,the final R=0.0532 and w R=0.1651 for 12156 observed reflections(I>2σ(I)).Complex 2 crystallizes in triclinic,space group P1 with a=7.3058(8),b=7.4890(8),c=10.8937(12)?,α=71.3810(10),β=84.134(2),γ=65.745(2)°,V=514.68(10)A^(3),Z=1,C_(20)H_(16)Cu N_(6)O_(10),M_(r)=563.94,D_(c)=1.819 g/cm^(3),μ=1.139 mm^(-1),S=1.187,F(000)=287,the final R=0.0314 and w R=0.0807 for 3564 observed reflections(I>2σ(I)).Single-crystal X-ray structural analysis reveals that complex 1 features a trinodal(3,3,4)-connected two-dimensional(2 D)net layer with Schlafli symbol(4·6·8)(4·6^(2)·8^(3))(6^(2)·8)while 2 has a 2 D network with 4^(4)sql topology.Moreover,the photoluminescent property of 1 and magnetic property of 2 were also discussed.展开更多
目的探究血清尿酸(serum uric acid,SUA)在脂肪摄入水平与肾功能损伤关系中的中介效应。方法对来自2009年中国健康与营养调查(China Health and Nutrition Survey,CHNS)的8187名具有完整血液检测信息的成人进行分析。肾功能损伤定义为...目的探究血清尿酸(serum uric acid,SUA)在脂肪摄入水平与肾功能损伤关系中的中介效应。方法对来自2009年中国健康与营养调查(China Health and Nutrition Survey,CHNS)的8187名具有完整血液检测信息的成人进行分析。肾功能损伤定义为肾小球滤过率(estimated glomerular filtration rate,eGFR)<60 ml/(min/1.73m^(2))。通过计算脂肪摄入量占总能量摄入量的百分比来评估脂肪摄入水平。使用基于二分类Logistic回归分析模型的限制性立方样条(restrictive cubic spline,RCS)探究脂肪摄入水平与肾功能损伤之间的剂量反应关系。采用Karlson-Holm-Breen分解方法中的Logistic回归进行中介分析。结果脂肪摄入水平与肾功能损伤呈线性正相关(β=0.015,95%CI:0.007~0.023,P<0.001)。SUA的中介作用占脂肪摄入水平对肾功能损伤总效应的13.33%(P=0.014)。结论在中国成年人中,脂肪摄入水平增加可能会增加肾功能损伤的风险,其可能通过引起SUA水平升高而导致肾脏损害的发生。展开更多
基金the National Natural Science Foundation of China(Nos.U1304206 and 21801112)Natural Science Foundation of Henan Province(No.212300410374)+1 种基金Science and Technology Project of Hennan Province(No.212102210549)the Key Scientific Research Project of Higher Education of Henan Province(No.13A150799)。
文摘Two new complexes,namely[Cd_(2)(L)(pycy)(Cl)]·2H_(2)O(1)and[Cu(HL)(H_(2)btac)]·2 H_(2)O,have been synthesized by the reaction of the corresponding metal salts with mixed ligands including 1-(1 H-imidazol-4-yl)-4-(4 H-tetrazol-5-yl)benzene(HL),2,6-pyridinedicarboxylic acid(H_(2)pycy)and 1,2,4,5-benzenetetracarboxylic acid(H4 btac),and characterized by single-crystal X-ray diffraction,IR spectroscopy,elemental analysis and powder X-ray diffraction(PXRD).Complex 1 crystallizes in triclinic,space group P1 with a=9.8938(7),b=10.1662(7),c=12.4520(8)A,α=92.7070(10),β=108.1310(10),γ=105.3230(10)°,V=1136.44(13)A^(3),Z=2,C_(17)H_(12)N_(7)O_(6)Cl Cd_(2),M_(r)=670.59,D_(c)=1.960 g/cm^(3),μ=2.037 mm^(-1),S=1.062,F(000)=648,the final R=0.0532 and w R=0.1651 for 12156 observed reflections(I>2σ(I)).Complex 2 crystallizes in triclinic,space group P1 with a=7.3058(8),b=7.4890(8),c=10.8937(12)?,α=71.3810(10),β=84.134(2),γ=65.745(2)°,V=514.68(10)A^(3),Z=1,C_(20)H_(16)Cu N_(6)O_(10),M_(r)=563.94,D_(c)=1.819 g/cm^(3),μ=1.139 mm^(-1),S=1.187,F(000)=287,the final R=0.0314 and w R=0.0807 for 3564 observed reflections(I>2σ(I)).Single-crystal X-ray structural analysis reveals that complex 1 features a trinodal(3,3,4)-connected two-dimensional(2 D)net layer with Schlafli symbol(4·6·8)(4·6^(2)·8^(3))(6^(2)·8)while 2 has a 2 D network with 4^(4)sql topology.Moreover,the photoluminescent property of 1 and magnetic property of 2 were also discussed.
