A novel holmium complex [Ho(HIA)_2(H_2O)_4(NO_3)](NO_3)_2(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes i...A novel holmium complex [Ho(HIA)_2(H_2O)_4(NO_3)](NO_3)_2(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in the C2/c space group of monoclinic system: a = 14.4797(7), b = 12.4768(2), c = 13.3471(5) ?, β = 118.690(4)°, V = 2115.26(13) ?~3, C_(12)H_(16)HoN_5O_(17), Mr = 667.23, Z = 4, Dc = 2.095 g/cm^3, μ(Mo Kα) = 3.838 mm^(–1) and F(000) = 1304. The crystal structure of 1 is characterized by an isolated structure. Solid-state photoluminescence experiment uncovers that it shows yellow light emission. The emission bands are originated from the characteristic emission of the 4 f electrons intrashell transition of the ~5S_2 → ~5I_8 and ~5F_5 → ~5I_8 of the Ho^(3+) ions. Energy transfer mechanism is explained by the energy level diagram of the Ho3+ ion and the isonicotinic acid ligand. It has remarkable CIE chromaticity coordinates of(0.4929, 0.4632), so it may be a promising color converter for lighting and displays.展开更多
A novel terbium-mercury complex [Tb(IA)3(H3 O)2]2 n(2 n HgCl4)(n Hg2 Cl5)·n H3 O· 3 n H2 O(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal ...A novel terbium-mercury complex [Tb(IA)3(H3 O)2]2 n(2 n HgCl4)(n Hg2 Cl5)·n H3 O· 3 n H2 O(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in the C2/c space group of monoclinic system with a = 24.2347(5), b = 20.8342(6), c = 15.3206(3) ?, β = 128.257(2)°, V = 6074.3(2) ?3, C36H41Cl13Hg4N6O20Tb2, Mr = 2458.80, Z = 4, Dc = 2.689 g/cm3, μ(Mo Kα) = 13.014 mm–1 and F(000) = 4520. The crystal structure of 1 is characterized by a one-dimensional(1-D) chain-like structure. Solid-state UV/Vis diffuse reflectance spectrum reveals the existence of a wide optical band gap of 3.36 eV. Solid-state photoluminescence experiment uncovers that it shows reddish brown upconversion emission. The emission bands are originated from the characteristic emission of the 4 f electrons intrashell transition of the 5D4 → 7 FJ(J = 6, 5, 4) of the Tb3+ ions. Energy transfer mechanism is explained by the energy level diagram of the Tb3+ ion and the isonicotinic acid ligand. It shows a remarkable CIE chromaticity coordinates(0.4158, 0.4005).展开更多
A new ternary alkali metal chalcogenide halide, K3SI, has been synthesized by solid state reaction method and structurally characterized by X-ray crystallography. The crystal belongs to hexagonal, space group P63cm wi...A new ternary alkali metal chalcogenide halide, K3SI, has been synthesized by solid state reaction method and structurally characterized by X-ray crystallography. The crystal belongs to hexagonal, space group P63cm with a = 11.699（I ）, c = 5.8279（9） A°, Mr = 276.26, V = 690.8（1 ）A°^ 3, Z = 6, D, = 3.985 g/cm^3, F（000） = 756, μ = 9.913 mm^-1, S = 1.004, R = 0.0719 and wR = 0.2204. The title compound is the first example containing S anion in the ternary alkali metal chalcogenide halides family M3QX （M = alkali metal, Q = chalcogenide, X - halide）, which crystallizes in the hexagonal anti-perovskite structure type.展开更多
A new cyano-bridged Gadolinium^(Ⅲ)-Iron^(Ⅲ)complex{[Gd(DMF)_(3)(DMSO)(H_(2)O)_(3)]2H_(2)0(DMF=N,N·-dimethylformamide;DMSO=dimethylsulfoxidel}was synthesized by the grinding reaction method,.It crysta-]llizes in...A new cyano-bridged Gadolinium^(Ⅲ)-Iron^(Ⅲ)complex{[Gd(DMF)_(3)(DMSO)(H_(2)O)_(3)]2H_(2)0(DMF=N,N·-dimethylformamide;DMSO=dimethylsulfoxidel}was synthesized by the grinding reaction method,.It crysta-]llizes in the triclinic.,space group P1 with ceIl parameters:a=O.90363(2)nm,b=1.25078(3)nm,c=1.41303(1)nm,穋m^(-3),Z=2,Mr=756.72,F(000)=760,Ⅲ)and the approxi-mately oriented octahedrally sixfold-coordinated Fe(Ⅲ)are linked by a cyano-bridge group to construct a dinuclear compound.The{[Gd(DMF)_(3)(DMSO)(H_(2)O)_(3)](Ⅲ)-Fe(Ⅲ)interaction is antiferromagnetic.CCDC:223430.展开更多
An unprecedented 4f-5d material(La6Hg5Br26)[4(HgBr2)](2Br)(1)was syn-thesized by hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction method.Complex 1 crystallizes in the Pbam spac...An unprecedented 4f-5d material(La6Hg5Br26)[4(HgBr2)](2Br)(1)was syn-thesized by hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction method.Complex 1 crystallizes in the Pbam space group of orthorhombic system with a=13.0980(10),b=13.6650(9),c=28.010(2)?,V=5013.4(6)?^3,Br36Hg9La6,Mr=5515.53,Z=2,Dc=3.613 g/cm^3,μ(MoKα)=29.457 mm^–1 and F(000)=4598.Compound 1 is characteristic of a two-dimensional(2D)layered structure.The photoluminescent measurements with solid-state samples reveal that compound 1 has a strong emission in the green region of light spectrum.It has remarkable CIE chromaticity coordinates of(0.2499,0.3589).A wide optical band gap of 3.41 eV is discovered by the solid-state UV/vis diffuse reflectance spectrum.The variable-temperature magnetic susceptibility obeys the Curie-Weiss law(cm=c/(T–q))with C=2.48 K and a negative Weiss constantθ=–169.07 K as revealed by the magnetic measurements,indicating the existence of an antiferromagnetic interaction in compound 1.展开更多
Using a hydrothermal reaction,a novel holmium-mercury compound{[Ho(IA)(HIA)_(2)(H2 O)_(2)]_(2-)(Hg_(3)Br_(8))}n(nHgBr_(2))·2 nNO_(3)(1,HIA is isonicotinc acid)was synthesized and its crystal structure was charact...Using a hydrothermal reaction,a novel holmium-mercury compound{[Ho(IA)(HIA)_(2)(H2 O)_(2)]_(2-)(Hg_(3)Br_(8))}n(nHgBr_(2))·2 nNO_(3)(1,HIA is isonicotinc acid)was synthesized and its crystal structure was characterized by single-crystal X-ray diffraction.Compound 1 crystallizes in monoclinic system,space group P2/c with a=13.0647(6),b=9.4659(3),c=26.0832(14)Å,β=97.522(4)°,V=3197.9(2)Å^(3),C_(36)H_(36)Br_(10)Hg_(4)Ho_(2)N_(8)O_(22),M_(r)=2863.95,Z=2,D_(c)=2.974 g/cm^(3),μ(Mo Kα)=18.331 mm^(–1) and F(000)=2575.It displays a two-dimensional(2 D)layer-like structure.A solid-state photoluminescence experiment revealed that it shows upconversion green emission.The emission peaks should come from the ^(5)I_(8)→^(5)G_(6) and ^(5)S_(2)→^(5)I_(8) characteristic emission of the 4 f electrons of the Ho3+ion.Compound 1 has a CIE chromaticity coordinate(0.1774,0.526).A solid-state UV-visible diffuse reflectance spectrum unveiled that this compound has a wide optical band gap of 3.26 eV.展开更多
By means of solvothermal reactions,a novel lanthanide-mercury compound,{[Ho(IA)3(H3O)2]2n[2n(HgCl4)][n(HgCl5)]}·3nH3O·nH2O(1,HIA=isonicotinc acid)was prepared and structurally characterized by single-crystal...By means of solvothermal reactions,a novel lanthanide-mercury compound,{[Ho(IA)3(H3O)2]2n[2n(HgCl4)][n(HgCl5)]}·3nH3O·nH2O(1,HIA=isonicotinc acid)was prepared and structurally characterized by single-crystal X-ray diffraction.Complex 1 crystallizes in the C2/c space group of monoclinic system with a=24.2147(5),b=20.8106(4),c=15.3060(3)Å,β=128.326(2)°,V=6050.8(2)Å3,C36H45Cl13Hg3Ho2N6O20,Mr=2274.26,Z=4,Dc=2.497 g/cm^3,μ(MoKα)=10.817 mm-1 and F(000)=4232.It exhibits a one-dimensional(1-D)chain-like structure.Solid-state photoluminescence measurement shows that it displays brown light emission bands.These emission bands originate from the characteristic emissions of the 4f electrons intrashell transitions of 5S2→5I8 and 5F5→5I8 of the holmium(Ⅲ)ions in 1.The photoluminescence emission energy transfer mechanism is elucidated by the energy level diagrams of the holmium(Ⅲ)ions and isonicotinic acid ligand.Complex 1 has CIE chromaticity coordinates of(0.4361,0.4992).Solid-state UV/Vis diffuse reflectance spectra reveal that it possesses wide optical band gap of 4.94 eV.展开更多
基金supported by the NNSFC(21361013)Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)+1 种基金the open foundation(20180008)of the State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciencesthe open foundation(ST201522007)of the Key Laboratory of Jiangxi Province for Persistant Pollutants Control and Resources Recycle(Nanchang Hangkong University)
文摘A novel holmium complex [Ho(HIA)_2(H_2O)_4(NO_3)](NO_3)_2(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in the C2/c space group of monoclinic system: a = 14.4797(7), b = 12.4768(2), c = 13.3471(5) ?, β = 118.690(4)°, V = 2115.26(13) ?~3, C_(12)H_(16)HoN_5O_(17), Mr = 667.23, Z = 4, Dc = 2.095 g/cm^3, μ(Mo Kα) = 3.838 mm^(–1) and F(000) = 1304. The crystal structure of 1 is characterized by an isolated structure. Solid-state photoluminescence experiment uncovers that it shows yellow light emission. The emission bands are originated from the characteristic emission of the 4 f electrons intrashell transition of the ~5S_2 → ~5I_8 and ~5F_5 → ~5I_8 of the Ho^(3+) ions. Energy transfer mechanism is explained by the energy level diagram of the Ho3+ ion and the isonicotinic acid ligand. It has remarkable CIE chromaticity coordinates of(0.4929, 0.4632), so it may be a promising color converter for lighting and displays.
基金Supported by the NSF of China(21361013,31460488)NSF of Fujian(2018J01447)+1 种基金Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)the Open Foundation(20180008)of State Key Laboratory of Structural Chemistry
文摘A novel terbium-mercury complex [Tb(IA)3(H3 O)2]2 n(2 n HgCl4)(n Hg2 Cl5)·n H3 O· 3 n H2 O(1, HIA = isonicotinic acid) has been synthesized through hydrothermal reactions and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in the C2/c space group of monoclinic system with a = 24.2347(5), b = 20.8342(6), c = 15.3206(3) ?, β = 128.257(2)°, V = 6074.3(2) ?3, C36H41Cl13Hg4N6O20Tb2, Mr = 2458.80, Z = 4, Dc = 2.689 g/cm3, μ(Mo Kα) = 13.014 mm–1 and F(000) = 4520. The crystal structure of 1 is characterized by a one-dimensional(1-D) chain-like structure. Solid-state UV/Vis diffuse reflectance spectrum reveals the existence of a wide optical band gap of 3.36 eV. Solid-state photoluminescence experiment uncovers that it shows reddish brown upconversion emission. The emission bands are originated from the characteristic emission of the 4 f electrons intrashell transition of the 5D4 → 7 FJ(J = 6, 5, 4) of the Tb3+ ions. Energy transfer mechanism is explained by the energy level diagram of the Tb3+ ion and the isonicotinic acid ligand. It shows a remarkable CIE chromaticity coordinates(0.4158, 0.4005).
基金We gratefully acknowledge the financial support of the NSF of China (20131020), the NSF for Distinguished Young Scientist of China (20425104) and the NSF of Fujian Province (Z0513020).
文摘A new ternary alkali metal chalcogenide halide, K3SI, has been synthesized by solid state reaction method and structurally characterized by X-ray crystallography. The crystal belongs to hexagonal, space group P63cm with a = 11.699（I ）, c = 5.8279（9） A°, Mr = 276.26, V = 690.8（1 ）A°^ 3, Z = 6, D, = 3.985 g/cm^3, F（000） = 756, μ = 9.913 mm^-1, S = 1.004, R = 0.0719 and wR = 0.2204. The title compound is the first example containing S anion in the ternary alkali metal chalcogenide halides family M3QX （M = alkali metal, Q = chalcogenide, X - halide）, which crystallizes in the hexagonal anti-perovskite structure type.
文摘A new cyano-bridged Gadolinium^(Ⅲ)-Iron^(Ⅲ)complex{[Gd(DMF)_(3)(DMSO)(H_(2)O)_(3)]2H_(2)0(DMF=N,N·-dimethylformamide;DMSO=dimethylsulfoxidel}was synthesized by the grinding reaction method,.It crysta-]llizes in the triclinic.,space group P1 with ceIl parameters:a=O.90363(2)nm,b=1.25078(3)nm,c=1.41303(1)nm,穋m^(-3),Z=2,Mr=756.72,F(000)=760,Ⅲ)and the approxi-mately oriented octahedrally sixfold-coordinated Fe(Ⅲ)are linked by a cyano-bridge group to construct a dinuclear compound.The{[Gd(DMF)_(3)(DMSO)(H_(2)O)_(3)](Ⅲ)-Fe(Ⅲ)interaction is antiferromagnetic.CCDC:223430.
基金This project was supported by the NNSFC(21361013)NSF of Fujian Province(2018J01447)+1 种基金Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)the open foundation(20180008)of State Key Laboratory of Structural Chemistry。
文摘An unprecedented 4f-5d material(La6Hg5Br26)[4(HgBr2)](2Br)(1)was syn-thesized by hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction method.Complex 1 crystallizes in the Pbam space group of orthorhombic system with a=13.0980(10),b=13.6650(9),c=28.010(2)?,V=5013.4(6)?^3,Br36Hg9La6,Mr=5515.53,Z=2,Dc=3.613 g/cm^3,μ(MoKα)=29.457 mm^–1 and F(000)=4598.Compound 1 is characteristic of a two-dimensional(2D)layered structure.The photoluminescent measurements with solid-state samples reveal that compound 1 has a strong emission in the green region of light spectrum.It has remarkable CIE chromaticity coordinates of(0.2499,0.3589).A wide optical band gap of 3.41 eV is discovered by the solid-state UV/vis diffuse reflectance spectrum.The variable-temperature magnetic susceptibility obeys the Curie-Weiss law(cm=c/(T–q))with C=2.48 K and a negative Weiss constantθ=–169.07 K as revealed by the magnetic measurements,indicating the existence of an antiferromagnetic interaction in compound 1.
基金supported by the NNSFC(21361013)Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)the Open Foundation of State Key Laboratory of Structural Chemistry(20180008)。
文摘Using a hydrothermal reaction,a novel holmium-mercury compound{[Ho(IA)(HIA)_(2)(H2 O)_(2)]_(2-)(Hg_(3)Br_(8))}n(nHgBr_(2))·2 nNO_(3)(1,HIA is isonicotinc acid)was synthesized and its crystal structure was characterized by single-crystal X-ray diffraction.Compound 1 crystallizes in monoclinic system,space group P2/c with a=13.0647(6),b=9.4659(3),c=26.0832(14)Å,β=97.522(4)°,V=3197.9(2)Å^(3),C_(36)H_(36)Br_(10)Hg_(4)Ho_(2)N_(8)O_(22),M_(r)=2863.95,Z=2,D_(c)=2.974 g/cm^(3),μ(Mo Kα)=18.331 mm^(–1) and F(000)=2575.It displays a two-dimensional(2 D)layer-like structure.A solid-state photoluminescence experiment revealed that it shows upconversion green emission.The emission peaks should come from the ^(5)I_(8)→^(5)G_(6) and ^(5)S_(2)→^(5)I_(8) characteristic emission of the 4 f electrons of the Ho3+ion.Compound 1 has a CIE chromaticity coordinate(0.1774,0.526).A solid-state UV-visible diffuse reflectance spectrum unveiled that this compound has a wide optical band gap of 3.26 eV.
基金Supported by the NNSFC(21361013,31460488),NSF of Fujian(2018J01447)Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)the Open Foundation(20180008)of State Key Laboratory of Structural Chemistry。
文摘By means of solvothermal reactions,a novel lanthanide-mercury compound,{[Ho(IA)3(H3O)2]2n[2n(HgCl4)][n(HgCl5)]}·3nH3O·nH2O(1,HIA=isonicotinc acid)was prepared and structurally characterized by single-crystal X-ray diffraction.Complex 1 crystallizes in the C2/c space group of monoclinic system with a=24.2147(5),b=20.8106(4),c=15.3060(3)Å,β=128.326(2)°,V=6050.8(2)Å3,C36H45Cl13Hg3Ho2N6O20,Mr=2274.26,Z=4,Dc=2.497 g/cm^3,μ(MoKα)=10.817 mm-1 and F(000)=4232.It exhibits a one-dimensional(1-D)chain-like structure.Solid-state photoluminescence measurement shows that it displays brown light emission bands.These emission bands originate from the characteristic emissions of the 4f electrons intrashell transitions of 5S2→5I8 and 5F5→5I8 of the holmium(Ⅲ)ions in 1.The photoluminescence emission energy transfer mechanism is elucidated by the energy level diagrams of the holmium(Ⅲ)ions and isonicotinic acid ligand.Complex 1 has CIE chromaticity coordinates of(0.4361,0.4992).Solid-state UV/Vis diffuse reflectance spectra reveal that it possesses wide optical band gap of 4.94 eV.
