Syntheses, structures, and solid-state phosphorescence characteristics of trans-bis(salicylaldiminato)Pt(II) complexes bearing perpendicular N-aryl functionalities
Syntheses, structures, and solid-state phosphorescence characteristics of trans-bis(salicylaldiminato)Pt(II) complexes bearing perpendicular N-aryl functionalities
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具有垂直N-芳基官能团的反式双(水杨醛亚胺)Pt(II)配合物的合成、结构和固态磷光特性
DOI：
10.1007/s11243-017-0198-9
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发表时间：
2017
影响因子：
1.7
通讯作者：
Naota Takeshi
中科院分区：
文献类型：
--
作者：
Iwata Shotaro;Takahashi Hidenori;Ihara Asami;Hiramatsu Kumiko;Adachi Junya;Kawamorita Soichiro;Komiya Naruyoshi;Naota Takeshi
本文描述了含n -芳香官能团的反式双（水杨醛缩）铂（II）配合物的合成、结构和固态发射特性。通过PtCl2(CH3CN)2与相应的n -水杨基芳胺反应，制备了一系列水杨基小配体上含有不同n -苯基(1)和n -（1-萘基）(2)基团的Pt配合物，并通过x射线衍射（XRD）明确了这些配合物的反式配位和晶体排列。具有2,6-二甲基苯基（1c）、2,6-二异丙基苯基（1d）、1-萘基（2a）和1-（2-甲基萘基）（2b）官能团的配合物在室温下表现出强烈的磷光发射，而具有苯基（1a）、2,6-二溴苯基（1b）和2,6-二（N，N-二甲氨基）苯基（1e）官能团的配合物在相同条件下要么发射较少，要么不发射。XRD分析发现，在1c、1d和2a的发射晶体中，芳基官能团的Pt和H原子之间存在显著的分子内相互作用。这些相互作用显然是与环境温度下强辐射有关的重要因素。
The syntheses, structures, and solid-state emission characteristics oftrans-bis(salicylaldiminato)Pt(II) complexes bearingN-aromatic functionalities are described herein. A series of Pt complexes bearing variousN-phenyl (1) andN-(1-naphthyl) (2) groups on the salicylaldiminato ligands were prepared by reacting PtCl2(CH3CN)2with the correspondingN-salicylidene aromatic amines, and thetrans-coordination and crystal packing of these complexes were unequivocally established based on X-ray diffraction (XRD). Complexes with 2,6-dimethylphenyl (1c), 2,6-diisopropylphenyl (1d), 1-naphthyl (2a), and 1-(2-methylnaphthyl) (2b) groups on the N atoms exhibited intense phosphorescent emission at ambient temperature in the crystalline state, while those with phenyl (1a), 2,6-dibromophenyl (1b), and 2,6-bis(N,N-dimethylamino)phenyl (1e) functionalities were either less emissive or non-emissive under the same conditions. XRD analyses identified significant intramolecular interactions between Pt and H atoms of theN-aryl functionalities in the emissive crystals of1c,1d, and2a. These interactions were evidently an important factor associated with intense emission at ambient temperature.