| Synthesis and Crystal Structure of Tetraimidazolium Dinicotinatooctamolybdate |
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| 作者姓名： | 康杰 张全争 吴传德 杨文斌 詹晓平 余雅琴 卢灿忠 |
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| 作者单位： | State Key Laboratory of Structural Chemistry，Fujian Institute of Research on the Structure of Matter，The Chinese Academy of Sciences，Fuzhou，Fujian 350002，China |
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| 基金项目： | the NNSF of China (20073048), NSF of Fujian province (2002F015) and the Chinese Academy of Sciences |
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| 摘 要： | 1INTRODUCTIONPolyoxometallates(POM)areofgreatinterestnotonlyfortheirstructuralvarietybutalsotheirunexpectedproperties1,2].Theseinorganicanionshavebeenwidelyinvestigatedasdiversascatalysis,biology,medicine,magnetochemistryandmaterialscience3～7].Thestudiesonthecoordinatedpoly-oxometallateswithorganicligandsmighthelptounderstandtherolesofpolyoxometallatesoncatalysis.Todate,aseriesofoctamolybdateswhichcanbedescribedasMo8O26X2]2n－4(nisthenormalchargeofthecoordinatedbaseX)havebeenreport…
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Synthesis and Crystal Structure of Tetraimidazolium Dinicotinatooctamolybdate |
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| Abstract: | The title compound, C3H5N2]4(C6H5NO2)2(Mo8O26)] 1, was synthesized by the reaction of H2MoO4, nicotinic acid and imidazole in aqueous solution. Single-crystal X-ray analysis has revealed that compound 1 (C24H30Mo8N10O30) crystallizes in the monoclinic system, space group P21/n, Mr = 1706.10, a = 12.529(1), b = 12.796(1), c = 14.038(1) , b = 100.2(1), V = 2215.3(2) 3, Z = 2, Dc = 2.558 g/cm3, F(000) = 1640, = 2.299 mm-1, the final R = 0.0527 and wR = 0.0964 for 3064 observed reflections with I > 2s(I). X-ray crystal structure analysis suggests that compound 1 consists of centrosymmetric dinicotinatooctamolybdate anion and four protonated imidazole cations, which are linked into a three-dimensional framework through hydrogen bonding. |
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| Keywords: | octamolybdate centrosymmetric nicotinic acid imidazole hydrogen bonding |
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