| 酰胺型配体铜、锌、银配合物的合成、结构及荧光性质 | |
| Syntheses, Crystal Structures and Fluorescence Properties of Cu(Ⅱ)/Zn(Ⅱ)/Ag(Ⅰ) Complexes with an Amide Type Ligand | |
| 摘要: 合成并通过单晶衍射表征了5个配合物[CuLCl2]·CH3COCH3（1）、[ZnLCl2]·CH3COCH3（2）、[ZnL（NO3）2]·0.5CH3COCH3（3）、[AgL2]ClO4（4）和[AgL2]BF4（5）（L=2-（5-氯-8-喹啉氧基）-1-（吡咯烷-1-基）乙酮）。配合物1和2同构，五配位的中心金属离子采取扭曲的四方锥配位构型，与来自配体L的2个氧原子和1个氮原子及2个氯离子配位。而在配合物3中，锌离子与1个三齿配位的配体L，1个单齿配位的硝酸根和1个双齿配位的硝酸根配位，配位构型为扭曲的八面体。配合物4和5中，中心金属与配体的比例为1∶2。银离子与2个三齿配位的配体L配位，采取扭曲的八面体配位构型。乙腈溶液中，配合物1、2、4和5在410 nm处的最大荧光发射峰与配体L相似。而配合物3由于配体到锌离子之间的能量转移，最大荧光发射峰红移至430 nm。 | |
| 关键词: 铜配合物 锌配合物 银配合物 酰胺型配体 荧光 | |
| 基金项目: 国家自然科学基金（No.21001040）、河南省科技厅基础与前沿项目（No.162300410011）和河南省教育厅自然科学基金（No.12B150011，14B150029）资助。 | |
| Abstract: Five complexes,[CuLCl2]·CH3COCH3 (1),[ZnLCl2]·CH3COCH3 (2),[ZnL(NO3)2]·0.5CH3COCH3 (3),[AgL2]ClO4 (4) and [AgL2]BF4 (5) (L=2-(5-chloroquinolin-8-yloxy)-1-(pyrrolidin-1-yl)ethanone), were synthesized and characterized by X-ray diffraction. Complexes 1 and 2 are isostructural, and in each of them the five-coordinated metal ion is in a distorted tetragonal pyramid with a NO2 donor set from one ligand L and two chloride anions. However, the Zn(Ⅱ) ion in complex 3 is coordinated with one tridentate ligand L, one monodentate and one bidentate nitrate anions, giving a distorted octahedral coordination geometry. The structures of 1~3 are quite similar as those of the acetonitrile solvates derived from the same ligand L and metal salts. By contrast, the ratio of the metal ion and ligand L is 1:2 in complexes 4 and 5, the central Ag(Ⅰ) ion in each complex is six-coordinated with two independent ligands with N2O donor set, thus possesses a distorted octahedral coordination geometry. In CH3CN solution, the emission spectra of complexes 1, 3, 4 and 5 exhibit similar peak at 410 nm as the ligand L. However, the emission band of complex 3 red-shifts to 430 nm because of energy transferring from the ligand L to the Zn(Ⅱ) ion. CCDC:1484068, 1; 1484069, 2; 1484070, 3; 1484071, 4; 1484072, 5. | |
| Keywords: Cu(Ⅱ)complex Zn(Ⅱ)complex Ag(Ⅰ)complex amide type ligand fluorescence | |
| 投稿时间：2016-06-11 修订日期：2016-08-01 | |
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| 林龙,李先宏,张波,张战营,吴伟娜,王元.酰胺型配体铜、锌、银配合物的合成、结构及荧光性质[J].无机化学学报,2016,32(9):1653-1658. | |
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