【摘 要】
：
An isopolytungstate(NH4)6Na4[H2W12O42]·14H20(1)has been synthesized in an aqueous solution and characterized by elemental analysis,IR spectroscopy,TG analysis,
【机 构】
：
College of Chemistry and Material Science
论文部分内容阅读
An isopolytungstate(NH4)6Na4[H2W12O42]·14H20(1)has been synthesized in an aqueous solution and characterized by elemental analysis,IR spectroscopy,TG analysis,X-ray powder diffraction(XRD)and single-crystal X-ray diffraction.The result indicates a degradation from nitrilotriacetic acid(NTA)to NH3.The electrochemical analysis and thermal stability of 1 were also studied.The crystal data are as follows:H54N6Na4O56W12(Mr=3332.65),orthorhombic,Pbca,α=14.1497(15),b=15.9414(16),c=22.931(2)(A),Z=4,V=5172.4(9)(A)3,Dc=4.280Mg/m3,μ=26.729 mm-1,F(000)=5904,the final R=0.0809 and wR=0.2104 for 4565(Rint=0.1351)independent reflections.The β-[H2W12O42]10-clusters are linked through {Na2(OH2)3}groups into a 2D layer and are further connected into a 3D framework viα hydrogen bonding interactions.
其他文献
T 3-(1-Ethyl-1H-indole-3-carbonyl)aminopropionic acid has been synthesized by alkylation of 3-(1H-indole-3-carbonyl)aminopropionic acid methyl ester with bromoe
The synthesis of stearic acid triethanolamine ester over solid acid catalysts was investigated.The results showed that the catalytic activity and selectivity of
本文通过将钯电解池安装在高灵敏度的电子自旋共振（ＥＳＲ）腔内，采用流动电解法现场检测到硝基苯在不同溶剂中电还原时硝基苯游离基的存在。在不同溶剂中，硝基苯游离基电子自旋共振产生
α-Aryl nitrone are one of the most useful kinds of nitrones and have been extensively explored in recent years.However,the sugar moieties have not been introdu
Oxidative stress and antioxidant defence systems were assessed in a marine brown alga Padina tetrastromatica,commonly occurring from the tropics.Lipid peroxidat
A 0.5 wt.% Pt/TiO2 catalyst was prepared and used for the low-temperature selective catalytic reduction(SCR)of NO with C3H6 in the presence of excess oxygen.The
A series of benzimidazole derivatives were synthesized expeditiously in good yields by condensation of 1,2-diaminobenzene and aromatic aldehydes in the presence
The prediction and assessment of environmental pollution by arsenic are important preconditions of advocating environmental protection and human health risk ass
A series of 1,4-substituted phthalazine derivatives were designed and synthesized.All the prepared compounds were screened for their cytotoxic activities agains
The catalysts of iron-doped Mn-Ce/TiO2(Fe-Mn-Ce/TiO2)prepared by sol-gel method were investigated for low temperature selective catalytic reduction(SCR)of NO wi