Synthesis, Structures and Spectroscopic Properties of Platinum(II), Palladium(II) and Copper(I) Halide Complexes with Pyrimidine-phosphine Ligand
Synthesis, Structures and Spectroscopic Properties of Platinum(II), Palladium(II) and Copper(I) Halide Complexes with Pyrimidine-phosphine Ligand
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嘧啶-膦配体卤化铂(II)、钯(II)和铜(I)配合物的合成、结构和光谱性质
DOI：
10.1002/zaac.200700233
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Wen‐Fu Fu
中科院分区：
文献类型：
--
作者：
Jun;X. Gan;Q. Xu;Jian;Mei Yuan;Wen‐Fu Fu
嘧啶膦配体N-[（二苯基膦基）甲基]-2-嘧啶胺（L）与PtII、PdII和CuI的各种金属盐反应，得到三种新的卤代金属配合物：Pt_2Cl_4（μ-L）_2·2CH_2Cl_2（1）、Pd_2Cl_4（μ-L）_2（2）和[Cu_2（μ-I）_2L_2]_n（3）。单晶X射线衍射研究表明，配合物1和2具有相似的十二元环结构，而配合物3由一维聚合物链组成，这些聚合物链通过氢键进一步连接成二维超分子骨架.在双核配合物1和2中，配体L作为与作为配位原子的N和P的桥，但在高分子配合物3中，配体采用桥接和螯合模式。研究了配合物1-3和L的光谱性质，其中配合物3在乙腈溶液和固体中分别表现出配体内电荷转移（ILCT）ππ* 和金属-配体电荷转移（MLCT）激发态的荧光.
The reactions of pyrimidine-phosphine ligand N-[(diphenylphosphino)methyl]-2-pyrimidinamine (L) with various metal salts of PtII, PdII and CuI provide three new halide metal complexes, Pt2Cl4(μ-L)2·2CH2Cl2 (1), Pd2Cl4(μ-L)2 (2), and [Cu2(μ-I)2L2]n (3). Single crystal X-ray diffraction studies show that complexes 1 and 2 display a similar bimetallic twelve-membered ring structure, while complex 3 consists of one-dimensional polymeric chains, which are further connected into a 2-D supramolecular framework through hydrogen bonds. In the binuclear complexes 1 and 2, the ligand L serves as a bridge with the N and P as coordination atoms, but in the polymeric complex 3, both bridging and chelating modes are adopted by the ligand. The spectroscopic properties of complexes 1-3 as well as L have been investigated, in which complex 3 exhibits intense photoluminescence originating from intraligand charge transfer (ILCT) ππ* and metal-to-ligand charge-transfer (MLCT) excited states both in acetonitrile solution and solid state, respectively.