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| 1 | Photophysics and structure of selected lanthanide compounds 显示文摘 | GAWRYSZEWSKA P SOKOINICKI J LEGENDZIEWICZ J | 2005 | Coord Chem Rev2005，249，： | 1 |
| 2 | Synthesis,structure and radiative and nonradiative properties of a new Dy3+ complex with sulfonylamidophosphate ligand显示文摘In recent years there has been growing interest in lanthanide-based multifunctional materials that exhibit interesting photophysical properties.This work presents spectroscopic and crystallographic characterization of a new dysprosium complex with sulfonylamidophosphate ligand.The crystal structure of[NaDy(SP)4]2·i-PrOH was determined and refined.It turns out that the Dy(Ⅲ)complex is not isostructural with earlier reported compounds and crystallizes in the monoclinic system(space group P21).Two crystallographically independent dysprosium atoms are in eight-fold coordination,with a triangular dodecahedron geometry.Absorption,emission(77 and 300 K)and excitation spectra as well as fluorescence decay time measurements allowed optical characterization of obtained complex.Efficient energy transfer from SP-ligand to Dy^3+ion has been demonstrated.The Judd-Ofelt theory was applied to predict fundamental fluorescence properties of Dy^3+ion in the title chelate.The Judd-Ofelt intensity parameters were used to determine the emission transition probabilities,fluorescence branching ratios and radiative lifetime of the emitting 4F9/2 level.The obtained results indicate that the investigated chelate can be a potential candidate for OLEDs emitting yellow light. | Lukasz Marek Marcin Sobczyk Victor A.Trush Kamil Korzeniowski Vladimir M.Amirkhanov Janina Legendziewicz | 2019 | Journal of Rare Earths2019，37，11： | 1 |
| 3 | Correlation between spectroscopic characteristics and structure of lanthanide phosphoro-azo derivatives of β-diketones显示文摘 | Oczko G Wiglusz R | 2001 | Journal of Alloys and Compounds2001，，： | 1 |
| 4 | Two high and low symmetry europium complexes wit L-proline:spectroscopy and structure显示文摘 | Ilona Turowska-Tyrk Janina Legendziewicz | 1998 | Journal of Alloys and Compounds1998，，： | 1 |
| 5 | Investigation of Er, Er:Yb and Er:Tm systems in silica sol-gels显示文摘 | SOKOLNICKI J URBASK B LEGENDZIEWICZ J | 2000 | Journal of Alloys and Compounds2000，，： | 1 |
| 6 | 查看详情显示文摘 | Malta O.L Legendziewicz J Huskowska E Turowska-Tyrk I. Albuquerque R.Q. de Mello Donega C. Ge Silva F R | | 0，，： | 1 |
| 7 | 查看详情显示文摘 | Huskowska E Turowska-Tyrk 1 Legendziewicz J Riehl J P | | 0，，： | 1 |
| 8 | Concentration Dependence of Luminescence Properties in Praseodymium and Praseodymium/Ytterbium-doped Lutetium Double Phosphates显示文摘 | Legendziewicz J Guzik M Cybinska J | 2008 | Optical Materials2008，30，11： | 1 |
| 9 | How minor structural changes generate major consequences in photophysical properties of RE coordination compounds;resonance effect,LMCT state显示文摘Lanthanide coordination compounds of the formula Na[Ln(L)4](1 Ln),where Ln=La^3+,Eu^3+,Gd^3+,Tb^3+,L=[L]-and HL=dimethyl(4-methylphenylsulfo nyl)amidophosphate,were synthesized.Their structural and spectro scopic properties were discussed in detail based on X-ray diffraction measurements,IR spectroscopy,absorption and emission spectroscopy at 293 and 77 K and theoretical calculations of the intramolecular energy transfer(IET)rates.DFT calculations were used to investigate the 1 Ln electronic properties re quired to calculate the transition rates.30 and 22 pathways of intramolecular nonradiative energy transfer were examined in the case of 1 Eu and 1 Tb,respectively.It is shown that the main pathway for sensitization of the lanthanide emission is either the triplet(1 Eu)or singlet(1 Tb)transfer,occurring mainly through the exchange mechanism.The energy rates for energy transfer from S1 and T1 equal WS=1.53×10^5 s^-1(1 Eu),WT=5.14×10^6 s^-1(1 Eu)and WS=4.09×10^7 s^-1(1 Tb),WT=6.88×10^5 s^-1(1 Tb).The crucial role of the 7 F5 level in the energy transfer process of 1 Tb and the participation of the LMCT state in the depopulation of the ligand singlet state of 1 Eu were demonstrated.The influence of the resonance effect on the splitting of the7 F1 level in 1 Eu was analyzed.By comparing the properties of 1 Ln with the properties of 2 Ln coordination compounds,sharing the same ligand and crystallizing in the same crystallographic system(monoclinic),but with a different space group,it is demonstrated how slight structural changes can affect the photophysical properties of Ln compounds. | Ewa Kasprzycka Albano N.Carneiro Neto Viktor A.Trush Lucjan Jerzykiewicz Vladimir M.Amirkhanov Oscar L.Malta Janina Legendziewicz Paula Gawryszewska | 2020 | Journal of Rare Earths2020，38，5： | 0 |
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