A novel dimeric polyanion based on mono-manganese substituted Keggin-type phosphotungstate: (MnPW11O39)(2)(10-)

作者：Dong, Xinbo; Yang, Shenghua; Liu, Bin; Wu, Panfeng; Hu, Huaiming; Xue, Ganglin^*

来源：Inorganic Chemistry Communications, 2016, 68: 76-79.

DOI：10.1016/j.inoche.2016.04.003

• Polyoxometalate
• Polyanion
• Phosphotungstate
• Transition metal substituted

The novel dimeric polyoxometalate, (MnPW11O39)(2)(10-) (1a), has been synthesized by reacting [B-alpha-PW9O34](9-) with Mn2+ ions in weak acid aqueous solution (pH = 5.3) under hydrothermal condition and isolated in the form of (C14H14N4)(5)H-10(MnPW11O39)(2)center dot 2H(2)O (1), which was characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, and magnetic measurements. The polyanion represents the first example of dimeric polyanion based on mono-transition metal (TM) substituted Keggin-type polyanions linked by two TM-mu(2)-O-TM bridges. Magnetic measurements show that the MnMn exchange interactions are weakly antiferromagnetic (J = (-)0.53 cm(-1)).

• 出版日期2016-6
• 单位西北大学