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合成并表征了2个新的基于6-甲氧羰基-4,4′-二甲基-2,2′-联吡啶的单核铜(Ⅰ)双膦配合物[Cu(mmbpy)(dppp)]ClO_4(1)和[Cu(mmbpy)(dppb)]ClO_4(2)。研究结果表明,铜(Ⅰ)配合物1和2均表现为扭曲变形的N_2P_2四面体几何构型,其P-Cu-P键角受辅助双膦配体控制。在常温下,这2个铜(Ⅰ)配合物在固态时均具有发光性质,并且相对于双膦配体亚甲基链的长度,P-Cu-P键角对其光物理性质的影响更为显著。在2,2′-联吡啶环上引入2个甲基取代基对改善铜(Ⅰ)配合物的发光性能也被证明是有效的。
Two novel mononuclear copper (Ⅰ) bisphosphine complexes [Cu (mmbpy) (dppp)) based on 6-methoxycarbonyl-4,4’-dimethyl- ] ClO_4 (1) and [Cu (mmbpy) (dppb)] ClO_4 (2). The results show that the copper (Ⅰ) complexes 1 and 2 exhibit distorted N_2P_2 tetrahedron geometry with P-Cu-P bond angle controlled by a bisphosphine ligand. At room temperature, the two copper (I) complexes have luminescent properties in the solid state, and the effect of the P-Cu-P bond angle on their photophysical properties is more relative to the length of the methylene chain of the diphosphine ligand For the obvious. The introduction of 2 methyl substituents on the 2,2’-bipyridyl ring has also proved to be effective in improving the luminescent properties of copper (I) complexes.