Syntheses and structures of two gold(I) coordination compounds derived from P-S hybrid ligands and their efficient catalytic performance in the photodegradation of nitroaromatics in water.
Syntheses and structures of two gold(I) coordination compounds derived from P-S hybrid ligands and their efficient catalytic performance in the photodegradation of nitroaromatics in water.
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DOI：
10.1039/c5dt00167f
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发表时间：
2015-03
影响因子：
4
通讯作者：
Hai-Xiao Qi;Jian-feng Wang;Zhi‐Gang Ren;Jin-Jiao Ning;J. Lang
中科院分区：
文献类型：
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作者：
Hai-Xiao Qi;Jian-feng Wang;Zhi‐Gang Ren;Jin-Jiao Ning;J. Lang
HAuCl4·4H2O 与 P-S 杂化配体 N,N-双(二苯基膦酰甲基)-氨基硫脲 (dppatc) 在 80 °C 和 115 °C 下发生溶剂热反应，生成两种 Au-P-S 配合物，[Au2(dppatc)2]Cl2 (1) 和 [Au2(dppmt)2]n (2) (dppmtH = (二苯基膦)甲硫醇)。通过元素分析、红外和紫外可见光谱、热重力分析、粉末X射线衍射和单晶X射线衍射分析对1和2进行了表征。化合物 1 含有双核 [Au2(dppatc)2](2+) 二价阳离子，而 2 则具有由 AuAu 亲金相互作用形成的一维链。化合物1和2对水溶液中硝基苯、对硝基苯酚和2,4-二硝基苯酚的光降解表现出优异的催化活性。降解反应遵循零级动力学模型，其中三种硝基芳烃可以以 92-96% 的产率转化为 CO2 和 H2O。
Solvothermal reactions of HAuCl4·4H2O with a P-S hybrid ligand N,N-bis(diphenylphosphanylmethyl)-amino-thiocarbamide (dppatc) at 80 °C and 115 °C produced two Au-P-S complexes, [Au2(dppatc)2]Cl2 (1) and [Au2(dppmt)2]n (2) (dppmtH = (diphenylphosphino)methanethiol). 1 and 2 were characterized by elemental analyses, IR and UV-vis spectra, thermal-gravity analyses, powder X-ray diffraction and single crystal X-ray diffraction analyses. Compound 1 contains a dinuclear [Au2(dppatc)2](2+) dication, while 2 has a one-dimensional chain formed by AuAu aurophilic interactions. Compounds 1 and 2 exhibited excellent catalytic activity toward the photodegradation of nitrobenzene, p-nitrophenol and 2,4-dinitrophenol in aqueous solutions. The degradation reactions followed the zero-order kinetic model, in which the three nitroaromatics could be converted into CO2 and H2O in 92-96% yields.