Synthesis and CrystalStructure ofdi-p-Methyl-pyridinium -p-m ethylpyridinidine Hexatungstate  

作　　者：LIN Xin-rong CHEN Ming-qin LIU Hui-zhang XU Jin-yu LI Pei JIN Song-lin XIE Gao-yang 

机构地区：[1]Department of Chemistry,Research Center of Analysis and Measurement,Fudan University,Shanghai 200433,P.R.China

出　　处：《Chemical Research in Chinese Universities》1999年第3期205-210,共6页高等学校化学研究(英文版)

摘　　要：A novel isopolyanion salt [(CH 3Py) 2H] 2W 6O 19 was synthesized by the reaction of a white powdery tungstic acid (WPTA) with p methylpyridine, and characterized by elemental analyses, infrared spectrometry and X ray diffraction methods. In the crystal structure of the title compound there are a hexatungstate anion and two unique [(CH 3Py) 2H] + dimeric cations, and the most specific aspect of its structure is the first reported hydrogen bond existing between two of the p methylpyridine molecules with a N_N distance of 0.267 3 nm. This hydrogen bond is analogous to that between the water molecules in H 5O 2 +, but is rather weaker.A novel isopolyanion salt [(CH 3Py) 2H] 2W 6O 19 was synthesized by the reaction of a white powdery tungstic acid (WPTA) with p methylpyridine, and characterized by elemental analyses, infrared spectrometry and X ray diffraction methods. In the crystal structure of the title compound there are a hexatungstate anion and two unique [(CH 3Py) 2H] + dimeric cations, and the most specific aspect of its structure is the first reported hydrogen bond existing between two of the p methylpyridine molecules with a N_N distance of 0.267 3 nm. This hydrogen bond is analogous to that between the water molecules in H 5O 2 +, but is rather weaker.

关 键 词：Di p methylpyridinium p methylpyridine hexatungstate Hydrogen bond Crystal structure 

分 类 号：O626[理学—有机化学]