Abstract

A novel inorganic coordination polymers crystal is grown from ferric sulfate solution under hydrothermal condition in the presence of adipic acid. The single crystal structure analysis shows that 0.5[Fe₆(μ₃-O^2-)₂(μ₃-OH^-)₂(SO₄)₆]^.2H₂O 1 is composed of µ₃-O^2- and µ₃-OH^--centered Trinuclear Ferric(III) secondary building units (SUBs) to form two dimensional network, and the lattice parameters are a = 18.223(13) Å, b = 7.670(5) Å, 9.932(7) Å, α = β= γ = 90°, orthorhombic crystal system, Cmc2₁ space group, V = 1388.3(17) ų. Squid-VSM magnetic measurement system is used for characterizing the variable temperature magnetic properties measurement of reaction products, and the result indicates that the magnetic susceptibility is obvious reduced with the increasing of test temperature. Noticeably, the higher magnetic susceptibility is acquired at about 0 K. Consequently, the products can be used as a good candidate for magnetic memory materials.

摘要

在己二酸存在下，在水热条件下从硫酸铁溶液中生长出一种新型无机配位聚合物晶体。单晶结构分析表明，0.5[Fe ₆ (μ ₃ -O ^2- ) ₂ (μ ₃ -OH ^- ) ₂ (SO ₄ ) ₆ ] ^。2H ₂ O 1由μ ₃ -O ^2-和μ ₃ -OH ^-中心的三核铁(III)二次构建单元(SUBs)组成二维网络，晶格参数为a  = 18.223(13) Å, b  = 7.670(5) Å, 9.932(7) Å, α  =  β =  γ  = 90°, 正交晶系, Cmc2 ₁空间群, V  = 1388.3(17) Å ³。Squid-VSM磁测系统用于表征反应产物的变温磁性能测量，结果表明随着测试温度的升高，磁化率明显降低。值得注意的是，在大约 0 K 处获得了更高的磁化率。因此，该产品可以用作磁存储材料的良好候选者。