当前位置：
X-MOL 学术
›
Dalton Trans.
›
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.)
Synthesis and characterisation of fluorescent aminophosphines and their coordination to gold(i)†
Dalton Transactions ( IF 3.5 ) Pub Date : 2018-06-27 00:00:00 , DOI: 10.1039/c8dt02256a Lara M. Groves 1, 2, 3, 4, 5 , Benjamin D. Ward 1, 2, 3, 4, 5 , Paul D. Newman 1, 2, 3, 4, 5 , Peter N. Horton 6, 7, 8, 9, 10 , Simon J. Coles 6, 7, 8, 9, 10 , Simon J. A. Pope 1, 2, 3, 4, 5
Dalton Transactions ( IF 3.5 ) Pub Date : 2018-06-27 00:00:00 , DOI: 10.1039/c8dt02256a Lara M. Groves 1, 2, 3, 4, 5 , Benjamin D. Ward 1, 2, 3, 4, 5 , Paul D. Newman 1, 2, 3, 4, 5 , Peter N. Horton 6, 7, 8, 9, 10 , Simon J. Coles 6, 7, 8, 9, 10 , Simon J. A. Pope 1, 2, 3, 4, 5
Affiliation
|
Three novel fluorescent aminophosphine ligands have been synthesised that incorporate napthyl (L1), pyrenyl (L2) and anthraquinone (L3) chromophores into their structures. The ligands react with [AuCl(tht)] (tht = tetrahydrothiophene) to give neutral complexes of the form [AuCl(L1–3)]. Solid state, X-ray crystallographic data was obtained for the anthraquinone derivative, [AuCl(L3)], and showed a distorted linear coordination geometry at Au(I). The packing structure also revealed a number of intermolecular π–π interactions that involve the anthraquinone and phenyl units of the aminophosphine ligand. 31P NMR spectroscopic data revealed δP values of +42.2 (L1), +42.1 (L2) and +26.1 (L3) ppm, which shifted downfield upon coordination to Au(I) to +64.6, +64.7, and +55.8 ppm, respectively. Supporting TD-DFT studies were able to reproduce the structure and 31P NMR chemical shifts of [AuCl(L3)] as well as rationalise the HOMO–LUMO compositions. Photophysical studies showed that the appended fluorophore dominates the absorption and emission properties for the ligands and complexes, with the anthraquinone derivatives showing visible emission at ca. 570 nm which was attributed to the intramolecular charge transfer character of the phosphinoaminoanthraquinone fragment.
中文翻译：
荧光氨基膦的合成，表征及其与金的配位（i）†
已经合成了三种新颖的荧光氨基膦配体，其将萘基（L1），pyr基（L2）和蒽醌（L3）发色团结合到它们的结构中。配体与[AUCL（THT）]（THT =四氢噻吩），得到形式的中性配合物[AUCL（L1-3）。获得了蒽醌衍生物[AuCl（L3）]的固态X射线晶体学数据，并显示了Au（I）处线性配位几何的变形。堆积结构还揭示了许多分子间的π-π相互作用，涉及氨基膦配体的蒽醌和苯基单元。31 P NMR光谱数据显示δP值+42.2（ L1），+42.1（ L2）和+26.1（ L3）ppm，当与Au（ I）配位时，低场偏移分别变为+ 64.6，+ 64.7和+55.8 ppm。支持TD-DFT的研究能够重现[AuCl（ L3）]的结构和31 P NMR化学位移，并使HOMO-LUMO组成合理化。光物理研究表明，附加的荧光团主导着配体和配合物的吸收和发射性质，蒽醌衍生物在约℃处可见发射。归因于膦氨基氨基蒽醌片段的分子内电荷转移特性，为570nm。
更新日期：2018-06-27
中文翻译：
荧光氨基膦的合成，表征及其与金的配位（i）†
已经合成了三种新颖的荧光氨基膦配体，其将萘基（L1），pyr基（L2）和蒽醌（L3）发色团结合到它们的结构中。配体与[AUCL（THT）]（THT =四氢噻吩），得到形式的中性配合物[AUCL（L1-3）。获得了蒽醌衍生物[AuCl（L3）]的固态X射线晶体学数据，并显示了Au（I）处线性配位几何的变形。堆积结构还揭示了许多分子间的π-π相互作用，涉及氨基膦配体的蒽醌和苯基单元。31 P NMR光谱数据显示δP值+42.2（ L1），+42.1（ L2）和+26.1（ L3）ppm，当与Au（ I）配位时，低场偏移分别变为+ 64.6，+ 64.7和+55.8 ppm。支持TD-DFT的研究能够重现[AuCl（ L3）]的结构和31 P NMR化学位移，并使HOMO-LUMO组成合理化。光物理研究表明，附加的荧光团主导着配体和配合物的吸收和发射性质，蒽醌衍生物在约℃处可见发射。归因于膦氨基氨基蒽醌片段的分子内电荷转移特性，为570nm。
京公网安备 11010802027423号