Preparation, Structure, Photoluminescence and Energy Transfer Mechanism of a Novel Holmium Complex
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摘要
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.
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.
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.
引文
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(13)Aleksandrovsky,A.S.;Krylov,A.S.;Malakhovskii,A.V.;Voronov,V.N.Luminescence spectra of Ho3+in distorted parity-breaking Ho F63-octahedral.J.Lumin.2012,132,690-692.
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(15)Krishnan,R.;Thirumalai,J.Up/down conversion luminescence properties of(Na0.5Gd0.5)Mo O4:Ln3+(Ln=Eu,Tb,Dy,Yb/Er,Yb/Tm,and Yb/Ho)microstructures:synthesis,morphology,structural and magnetic investigation.New J.Chem.2014,38,3480-3491.
(16)Barrera,E.W.;Pujol,M.C.;Carvajal,J.J.;Mateos,X.;Sole,R.;Massons,J.;Speghini,A.;Bettinelli,M.;Cascales,C.;Aguilo,M.White light upconversion in Yb-sensitized(Tm,Ho)-doped KLu(WO4)2 nanocrystals:the effect of Eu incorporation.Phys.Chem.Chem.Phys.2014,16,1679-1686.
(17)Zhan,H.;Zhou,Z.;He,J.;Lin,A.Intense red upconversion emission of Yb/Tm/Ho triply-doped tellurite glasses.Appl.Optics 2012,51,3091-3095.
(18)Dexter,D.L.A theory of sensitized luminescence in solids.J.Chem.Phys.1953,21,836-850.
(19)Sato,S.;Wada,M.Relations between intramolecular energy transfer efficiencies and triplet state energies in rare earthβ-diketone chelates.Bull.Chem.Soc.Jpn.1970,43,1955-1962.
(20)Xu,B.;Yan,B.Photophysical properties of novel lanthanide(Tb3+,Dy3+,Eu3+)complexes with long chain para-carboxyphenol ester p-L-benzoate(L=dodecanoyloxy,myristoyloxy,palmitoyloxy and stearoyloxy).Spectrochim.Acta A 2007,66,236-242.
(2)Kaur,K.;Singh,K.J.;Anand,V.;Islam,N.;Bhatia,G.;Kalia,N.;Singh,J.Lanthanide(=Ce,Pr,Nd and Tb)ions substitution at calcium sites of hydroxyl apatite nanoparticles as fluorescent bio probes:experimental and density functional theory study.Ceram.Int.2017,43,10097-10108.
(3)Wang,W.;Feng,W.;Du,J.;Xue,W.;Zhang,L.;Zhao,L.;Li,Y.;Zhong,X.Cosensitized quantum dot solar cells with conversion efficiency over 12%.Adv.Mater.2018,30,1705746-1705749.
(4)Picot,A.;Malvolti,F.;Le Guennic,B.;Baldeck,P.L.;Williams,J.A.G.;Andraud,C.;Maury,O.Two-photon antenna effect induced in octupolar europium complexes.Inorg.Chem.2007,46,2659-2665.
(5)Samuel,A.P.S.;Moore,E.G.;Melchior,M.;Xu,J.;Raymond,K.N.Water-soluble 2-hydroxyisophthalamides for sensitization of lanthanide luminescence.Inorg.Chem.2008,47,7535-7544.
(6)Yan,B.;Xu,B.Spectroscopic study on the photophysical properties of lanthanide complexes with long chain mono-docosyl phthalate.J.Fluoresc.2005,15,619-626.
(7)Sheldrick,G.M.SHELXS-97,Program for X-ray Crystal Structure Solution.University of G?ttingen,Germany 1997.
(8)Zhang,J.W.;Jiang,Y.;Xie,Y.R.;Chu,J.;Liu,B.Q.Syntheses,structures,photoluminescence,and magnetism of a series of discrete heavy lanthanide complexes based on a tricarboxylic acid.Inorg.Chim.Acta 2016,453,257-262.
(9)Kou,F.;Yang,S.;Zhang,L.;Teat,S.J.;Tian,G.Complexation of Ho(III)with tetraalkyl-diglycolamide in aqueous solutions and a solid state compared in organic solutions of solvent extraction.Inorg.Chem.Commun.2016,71,41-44.
(10)Coban,M.B.;Amjad,A.;Aygun,M.;Kara,H.Sensitization of HoIII and SmIII luminescence by efficient energy transfer from antenna ligands:magnetic,visible and NIR photoluminescence properties of GdIII,HoIII and SmIII coordination polymers.Inorg.Chim.Acta 2017,455,25-33.
(11)Li,Y.;Liu,Y.;Gong,P.;Tian,X.;Luo,J.;Zhao,J.Two isonicotinate-bridging lanthanide substituted phosphotungstate hybrids.Inorg.Chem.Commun.2016,74,42-47.
(12)Mu,Z.;Hu,Y.;Ju,G.Luminescence properties of Eu3+and Ho3+in Sr2Ti O4.J.Rare Earths 2012,30,744-747.
(13)Aleksandrovsky,A.S.;Krylov,A.S.;Malakhovskii,A.V.;Voronov,V.N.Luminescence spectra of Ho3+in distorted parity-breaking Ho F63-octahedral.J.Lumin.2012,132,690-692.
(14)Walsh,B.M.;Barnes,N.P.;Di Bartolo,B.On the distribution of energy between the Tm 3F4 and Ho 5I7 manifolds in Tm-sensitized Ho luminescence.J.Lumin.1997,75,89-98.
(15)Krishnan,R.;Thirumalai,J.Up/down conversion luminescence properties of(Na0.5Gd0.5)Mo O4:Ln3+(Ln=Eu,Tb,Dy,Yb/Er,Yb/Tm,and Yb/Ho)microstructures:synthesis,morphology,structural and magnetic investigation.New J.Chem.2014,38,3480-3491.
(16)Barrera,E.W.;Pujol,M.C.;Carvajal,J.J.;Mateos,X.;Sole,R.;Massons,J.;Speghini,A.;Bettinelli,M.;Cascales,C.;Aguilo,M.White light upconversion in Yb-sensitized(Tm,Ho)-doped KLu(WO4)2 nanocrystals:the effect of Eu incorporation.Phys.Chem.Chem.Phys.2014,16,1679-1686.
(17)Zhan,H.;Zhou,Z.;He,J.;Lin,A.Intense red upconversion emission of Yb/Tm/Ho triply-doped tellurite glasses.Appl.Optics 2012,51,3091-3095.
(18)Dexter,D.L.A theory of sensitized luminescence in solids.J.Chem.Phys.1953,21,836-850.
(19)Sato,S.;Wada,M.Relations between intramolecular energy transfer efficiencies and triplet state energies in rare earthβ-diketone chelates.Bull.Chem.Soc.Jpn.1970,43,1955-1962.
(20)Xu,B.;Yan,B.Photophysical properties of novel lanthanide(Tb3+,Dy3+,Eu3+)complexes with long chain para-carboxyphenol ester p-L-benzoate(L=dodecanoyloxy,myristoyloxy,palmitoyloxy and stearoyloxy).Spectrochim.Acta A 2007,66,236-242.