Synthesis of a tetratopic bisphosphine ligand derived from pyrimidine and its incorporation into gold and silver coordination polymers
Synthesis of a tetratopic bisphosphine ligand derived from pyrimidine and its incorporation into gold and silver coordination polymers
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DOI：
10.1016/j.ica.2022.121209
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发表时间：
2022-09
影响因子：
2.8
通讯作者：
Roberta R. Rodrigues;E. Reinheimer;Christopher L. Dorsey;T. Hudnall
中科院分区：
文献类型：
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作者：
Roberta R. Rodrigues;E. Reinheimer;Christopher L. Dorsey;T. Hudnall
本文介绍了一种由4,6-二取代嘧啶支架合成的四异位双膦配体。这种新的配体(2)用碘甲烷进行双烷基化，得到双膦化(3)作为碘化盐，并分别与氯化金(I)配位得到金属配合物(4)和三酸银(I)配位得到配位聚合物(5)。所有化合物都用多核磁共振波谱和单晶x射线衍射进行了充分的表征。在λmax= 530 nm处，由于Au(I) -Au (I)亲金相互作用，金配合物4表现出弱发射。此外，我们还证明了双膦配体2可以作为四异位配体，这可以通过观察到膦→银和氮→银相互作用的配位聚合物5的形成来证明。
Herein we present the synthesis of a tetratopic bisphosphine ligand derived from 4,6-disubstituted pyrimidine scaffold. This new ligand (2) was doubly alkylated using iodomethane to give bisphosphonium dication (3) as an iodide salt, and was also coordinated to both gold(I) chloride to give the metal complex (4) and to silver(I) triflate to give a coordination polymer (5), respectively. All compounds have been fully characterized using multinuclear NMR spectroscopy as well as single crystal X-ray diffraction. Gold complex4was also found to exhibit weak emission at λmax= 530 nm due to Au(I)–Au(I) aurophilic interactions. Additionally we demonstrated that bisphosphine ligand2can be used as a tetratopic ligand, as evidenced by the formation of the coordination polymer5in which both phosphine → silver and nitrogen → silver interactions were observed.