摘要
在中性水溶液中合成了Keggin型铜取代磷钨杂多阴离子PW11O39Cu(II)(H2O)5-(PW11Cu),并对其进行IR、UV-Vis和循环伏安表征.实验结果表明,PW11Cu在700~1100 cm^-1的指纹区内有四个特征振动吸收峰,分别对应于P-Oa、W=Od、W-Ob-W和W-Oc-W的反对称伸缩振动吸收.在200nm和249 nm处有两个很强的紫外吸收,在650-800 nm的可见光区有一个较强的连续吸收带.循环伏安显示W-O骨架波和一对Cu的氧化-还原波.
Keggin-type Cu(II)-substituted heteropolyanion PW11O39Cu(II)(H2O)^5-(PWI1Cu) was synthesized in neutral aqueous solution and characterized by IRI UV-Vis and cyclic vohammetry. Experimental results showed that in the 700-1100 cm^-1 fingerprint area PWHCu exhibits five characteristic absorption peaks, corresponding to the anti-symmetric stretching vibration of P-Oa, W=Od, W-Ob-W and W-Oo-W, respectively. There are two strong UV absorptions at near 200 nm and 249 nm and a continuous visible absorption band in the district of 650-800 nm for PW11CU. In addition to W-O skele- ton-waves a pair of Cu(II)/Cu(I) redox wave appears in the cyclic vohammograms.
出处
《海南师范大学学报(自然科学版)》
CAS
2014年第4期396-400,共5页
Journal of Hainan Normal University(Natural Science)
基金
国家自然科学基金(21161007)
海南省国际科技合作重点项目(KJHZ2014-08)
海南省重点科技项目(ZDXM20130088)
海南师范大学研究生创新项目