两个单核镍含氮配体配合物的合成、晶体结构及荧光性质 |
Synthesis, Crystal Structures and Luminescent Properties of Two Nickel Mononuclear Complexes Containing N-donor Ligands |
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摘要: 采用回流法在水溶剂中合成了2个含氮配体单核镍配合物[Ni(phen)2(H2O)2](1,6-nds)·2H2O(1)和[Ni(phen)3](1,6-nds)·10H2O(2)(1,6-nds=1,6-萘二磺酸根离子,phen=1,10-邻菲罗啉)。配合物1中,镍离子与2个1,10-邻菲罗啉和2个水分子配位,形成[Ni(phen)2(H2O)2]2+阳离子。2个没有配位的水分子通过氢键与[Ni(phen)2(H2O)2]2+和1,6-萘二磺酸根离子相互连接形成二维层状结构。配合物2中,镍离子与3个1,10-邻菲罗啉配位,形成[Ni(phen)3]2+阳离子。大量的氢键将自由的水分子和1,6-萘二磺酸根离子连接形成三维网状结构。2个配合物中1,6-萘二磺酸根离子均没有与镍离子配位,只是起到平衡电荷的作用。室温下,配合物显示了较大的荧光发射峰,其最大发射峰分别在443和438nm。 |
关键词: 镍配合物 荧光性质 晶体结构 |
基金项目: |
Abstract: The synthesis of the two Ni(Ⅱ) mononuclear complexes containing N-donor ligands [Ni(phen)2(H2O)2](1,6-nds)·2H2O (1) and [Ni(phen)3](1,6-nds)·10H2O (2) (1,6-nds=1,6-naphthalene-disulfonate anion, phen=1,10-phenanthroline) was conducted in water by the reflux method. For the complex 1, the nickel ion coordinates with two 1,10-phenanthroline ligands and two water molecules, respectively, forming the [Ni(phen)2(H2O)2]2+ cation, and the two uncoordinated water molecules connect to the [Ni(phen)2(H2O)2]2+ cations and 1,6-nds anions to form a two-dimensional layered structure via the hydrogen bonds. For the complex 2, the nickel ion coordinates with three 1,10-phenanthroline ligands to form the [Ni(phen)3]2+ cation. There are abundant hydrogen bonds between free water molecules and 1,6-nds anions, leading to a three-dimensional network structure. In the two complexes, the 1,6-nds anions don't coordinate with the nickel ions, only balance the charges. The complexes exhibit strong luminescence with emission maximum at 443 and 438 nm at room temperature, respectively. |
Keywords: nickel complex luminescent property crystal structure |
投稿时间:2013-09-16 修订日期:2013-10-25 |
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关磊,高威,张祖康,王莹.两个单核镍含氮配体配合物的合成、晶体结构及荧光性质[J].无机化学学报,2014,30(5):1187-1194. |
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