当前位置: X-MOL 学术Opt. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
New lanthanide complexes with CAPh type ligand dimethyl-N-benzoylamidophosphate and an additional ligand triphenylphosphine oxide. Synthesis, crystal structure, luminescent and thermal properties
Optical Materials ( IF 3.9 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.optmat.2020.110233
D.D. Kuzmina , V.A. Trush , N.S. Kariaka , K.V. Domasevitch , T.Yu Sliva , S.S. Smola , N.V. Rusakova , V.V. Dyakonenko , S.V. Shishkina , V.M. Amirkhanov

Abstract The novel coordination compounds of general formula [LnL3TPPO] (Ln3+ = Nd3+, Eu3+, Gd3+, Tb3+, Tm3+, Lu3+, HL = dimethyl-N-benzoylamidophosphate, TPPO = triphenylphosphine oxide) and the complex [Tm5L6(μ-L)4(μ3-OH)4(μ4-OH)] were obtained and characterized by elemental, X-ray and TG analyses, IR and luminescent spectroscopy. By means of X-ray diffraction method it was found, that CAPh-ligands are coordinated to lanthanide(III) ions in bidentate chelate manner through oxygen atoms of the carbonyl and phosphoryl groups. In [LnL3TPPO] compounds oxygen atom of TPPO ligand complete coordination number of lanthanide ion to seven, while in [Tm5L6(μ-L)4(μ3-OH)4(μ4-OH)] the Tm3+ ion is eight coordinated. In crystal packing of the obtained complexes there are numerous short contacts between neighboring molecules. The coordination compounds were found to be resistant to temperature of 200 °C. Upon excitation by UV light the complexes [EuL3TPPO], [TbL3TPPO] and [TmL3TPPO] show lanthanide centered, respectively red, green and blue emission. The Eu3+ and Tb3+ complexes emission is characterized by decay time 1.30 and 1.56 ms respectively. Intrinsic quantum yield for [EuL3TPPO] equals 80%.

中文翻译:

新的镧系元素配合物与 CAPh 型配体二甲基-N-苯甲酰氨基磷酸酯和额外的配体三苯基氧化膦。合成、晶体结构、发光和热性能

摘要 通式[LnL3TPPO]的新型配位化合物(Ln3+ = Nd3+, Eu3+, Gd3+, Tb3+, Tm3+, Lu3+, HL = 二甲基-N-苯甲酰氨基磷酸酯,TPPO = 三苯基氧化膦)和配合物[Tm5L6(μ-L)4 (μ3-OH)4(μ4-OH)] 被获得并通过元素、X 射线和 TG 分析、IR 和发光光谱进行表征。通过X射线衍射法发现,CAPh-配体通过羰基和磷酰基的氧原子以双齿螯合方式配位到镧系元素(III)离子。在[LnL3TPPO]化合物中,TPPO配体的氧原子与镧系元素离子的完全配位数为7,而在[Tm5L6(μ-L)4(μ3-OH)4(μ4-OH)]中,Tm3+离子为8配位。在获得的复合物的晶体堆积中,相邻分子之间存在许多短接触。发现配位化合物可耐受 200 °C 的温度。在紫外光激发下,复合物 [EuL3TPPO]、[TbL3TPPO] 和 [TmL3TPPO] 分别显示以镧系元素为中心的红色、绿色和蓝色发射。Eu3+ 和 Tb3+ 配合物发射的特征是衰减时间分别为 1.30 和 1.56 ms。[EuL3TPPO] 的本征量子产率等于 80%。
更新日期:2020-11-01
down
wechat
bug