【摘要】 有关文献报道了［Ｎａ（ＤＢ１８Ｃ６）ＣＨ３ＯＨ２］２Ｗ６Ｏ１９的合成与晶体结构．本文应用相同的反应物，选用不同的实验条件合成出了另一种新型冠醚多酸超分子配合物，并进行了ｘ四圆衍射测定．该晶体Ｃ４９Ｈ８２Ｗ６Ｎ２Ｎａ２Ｏ４０为四方型，空间群为Ｐｒ／ｍｂｍ，α＝１．７０９５（３）ｎｍ，Ｃ＝２．８２４３（５）ｎｍ，Ｖ＝８．２５４（２）ｎｍ３，Ｚ＝５４，Ｍｒ＝２４８８．３３，Ｄｘ＝２．０３５／ｃｍ３，μ＝９．５１ｃｍ－１，Ｆ（０００）＝４７０４．最后一致性因子为Ｒ＝０．０５４６和Ｒｗ＝０．０６３２．该配合物由［Ｎａ（ＤＢ１８Ｃ６）（Ｈ２Ｏ）２］＋与Ｗ６Ｏ１９通过静电作用而组成更多还原

【Abstract】 The title complex of [Na (DB18C6)(H2O)2]2 W6O19, a new type of crown hexatungstate supermolecule has been synthesized. Its crystal structure has been determined by X-ray diffraction analysis. The crystal C49H82W6N2Na2O40is tetragonal, space group P4/mbm, α=1.7095 (3)nm,c=2.8243(5)nm, V=8.254(2)nm3,Z=4,Mr=2488,Dx=2.035/cmn,μ=9.51 cm-1,F(000) = 4704. The final agreement factor R=0. 0546 and Rw=0. 0632 for 3003 independent reflections with I] 3 (I) considered to be observed. In contrast to what we have reported about [Na (DB18C6) CH3OH]2W6O19in crystal of the title compound, the cation [Na(DB18C6)(H2O)2]+combined with the anion W6O19-by electrostatic interaction.更多还原