CN104036913B - 磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]· (CH3CN)2及合成方法 - Google Patents

磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]· (CH3CN)2及合成方法 Download PDF

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CN104036913B
CN104036913B CN201410292900.8A CN201410292900A CN104036913B CN 104036913 B CN104036913 B CN 104036913B CN 201410292900 A CN201410292900 A CN 201410292900A CN 104036913 B CN104036913 B CN 104036913B
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CN104036913A (zh
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张淑华
赵儒霞
肖瑜
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Xinxiang Dacheng Science And Technology Intermediary Service Co ltd
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Guilin University of Technology
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Abstract

本发明公开了一种磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2及合成方法。磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的分子式为:C40H40Ni2N10Na2O12,分子量为:1016.18,Hhmb为3‑甲氧基‑2‑羟基苯甲醛。将0.114‑0.228克分析纯3‑甲氧基‑2‑羟基苯甲醛溶于5‑10毫升分析纯无水甲醇与5‑10毫升分析纯乙腈的混合溶液中,依次加入0.274‑0.548g分析纯六水合高氯酸镍和0.098‑0.196g分析纯叠氮化钠,搅拌后加入分析纯三乙胺调节至pH=5.5,搅拌,静置,过滤,洗涤,晾干。[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的磁学性质:分子内镍离子间存在铁磁交换,其表现为铁磁性。本发明具有工艺简单、成本低廉、化学组分易于控制、重复性好并产量高等优点。

Description

磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2及合成方法
技术领域
本发明涉及一种磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2(Hhmb为3-甲氧基-2-羟基苯甲醛)及合成方法。
背景技术
现代磁性材料已经广泛的用在我们的生活之中,例如将永磁材料用作马达,应用于变压器中的铁心材料,作为存储器使用的磁光盘,计算机用磁记录软盘等。可以说,磁性材料与信息化、自动化、机电一体化、国防、国民经济的方方面面紧密相关。对于配合物磁性材料而言,探索其磁性产生的机理和建立合理的理论模型是其快速发展的依据。从分子设计入手,合理裁剪分子结构,既可以经济快捷地开发出磁性配合物,又可对其进行官能团修饰改变其磁性。随着人们对磁性理论和配位化学研究的深入,将合成出更多的具有实用价值的配合物磁性材料,而这些配合物磁性材料的应用将在航天、航空、军工、信息、超导等领域引发一系列重大的技术革新。
发明内容
本发明的目的就是为设计合成磁学性质优异的功能材料,利用常温溶液法合成技术合成[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2
本发明涉及的[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的分子式为:C40H40Ni2N10Na2O12,分子量为:1016.18,其中Hhmb为3-甲氧基-2-羟基苯甲醛。晶体结构数据见表一,键长键角数据见表二。
表一[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的晶体学参数
表二[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的键长和键角(°)
[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的合成方法具体步骤为:
将0.114-0.228克分析纯3-甲氧基-2-羟基苯甲醛溶于5-10毫升分析纯无水甲醇与5-10毫升分析纯乙腈的混合溶液中,再依次加入0.274-0.548g分析纯六水合高氯酸镍和0.098-0.196g分析纯叠氮化钠,并搅拌10分钟使溶液混合均匀后加入分析纯三乙胺调节至pH=5.5,继续搅拌20分钟后,将所制得的混合液静置于室温下,三天后得到绿色块状晶体,过滤,并用分析纯甲醇洗涤干净,于空气中晾干后得到产品[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2
[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的磁学性质:分子内镍离子间存在铁磁交换,其表现为铁磁性。
本发明具有工艺简单、成本低廉、化学组分易于控制、重复性好并产量高等优点。
附图说明
图1为本发明[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的结构图。
图2为本发明[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2χM-T,χMT-T曲线图。
图3为本发明[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2χM –1-T曲线图。
具体实施方式
实施例1:
本发明涉及的[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的分子式为:C40H40Ni2N10Na2O12,分子量为:1016.18,其中Hhmb为3-甲氧基-2-羟基苯甲醛。
[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的合成方法具体步骤为:
(1)将0.114克分析纯3-甲氧基-2-羟基苯甲醛溶于5毫升分析纯无水甲醇与5毫升分析纯乙腈的混合溶液中,再依次加入0.274g分析纯六水合高氯酸镍和0.098g分析纯叠氮化钠,并搅拌10分钟使溶液混合均匀后加入分析纯三乙胺调节至pH=5.5,继续搅拌20分钟后,将所制得的混合液静置于室温下,三天后得到绿色块状晶体,过滤,并用分析纯甲醇洗涤干净,于空气中晾干后得到产品[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2。产量:108mg,产率:56.68%,通过单晶衍射仪表征了磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的结构。晶体学参数见表1,键长键角见表2.
(2)将0.0325克步骤(1)得到的产品碾碎后在磁性测试仪器上进行磁性测试,得到磁性测试曲线如附图2,[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2在室 温下χMT为3.13cm3Kmol1,随着温度降低,χMT逐渐升高,至21K达到最大值4.4cm3Kmol-1,随后急剧降至3.4cm3Kmol-1。在对χM-T,χMT–T曲线进行分析拟合后得到郎德因子为2.36,分子内镍离子之间的磁交换常数为12.97cm-1,分子间镍离子的磁交换常数为:-0.36cm-1。且χM –1-T曲线遵从居里-韦斯定律,对其拟合得到韦斯常数为11.77K,居里常数为3.00cm3Kmol–1。大而正的韦斯常数,分子内磁交换常数及χMT-T曲线趋势均暗示分子内镍离子间存在铁磁交换,其整体表现为铁磁性。
实施例2:
本发明涉及的[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的分子式为:C40H40Ni2N10Na2O12,分子量为:1016.18,其中Hhmb为3-甲氧基-2-羟基苯甲醛。
[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的合成方法具体步骤为:
(1)将0.228克分析纯3-甲氧基-2-羟基苯甲醛溶于10毫升分析纯无水甲醇与10毫升分析纯乙腈的混合溶液中,再依次加入0.548g分析纯六水合高氯酸镍和0.196g分析纯叠氮化钠,并搅拌10分钟使溶液混合均匀后加入分析纯三乙胺调节至pH=5.5,继续搅拌20分钟后,将所制得的混合液静置于室温下,三天后得到绿色块状晶体,过滤,并用分析纯甲醇洗涤干净,于空气中晾干后得到产品[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2
(2)将0.0325克步骤(1)得到的产品碾碎后在磁性测试仪器上进行磁性测试,得到磁性测试曲线如附图2,[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2在室温下χMT为3.13cm3Kmol1,随着温度降低,χMT逐渐升高,至21K达到最大值4.4cm3Kmol-1,随后急剧降至3.4cm3Kmol-1。在对χM-T,χMT–T曲线进行分析拟合后得到郎德因子为2.36,分子内镍离子之间的磁交换常数为12.97cm-1,分子间镍离子的磁交换常数为:-0.36cm-1。且χM –1-T曲线遵从居里-韦斯定律,对其拟合得到韦斯常数为11.77K,居里常数为3.00cm3Kmol–1。大而正的韦斯常数,分子内磁交换常数及χMT-T曲线趋势均暗示分子内镍离子间存在铁磁交换,其整体表现为铁磁性。

Claims (1)

1.一种磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2,其特征在于[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2具有优良的磁学特性,其分子式为:C40H40Ni2N10Na2O12,分子量为:1016.18,其中Hhmb为3-甲氧基-2-羟基苯甲醛,[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2晶体结构数据见表一,键长键角数据见表二;[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的磁学性质:(1)分子内镍离子间存在铁磁交换,其表现为铁磁性;(2)[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2在室温下χMT为3.13cm3Kmol-1,随着温度降低,χMT逐渐升高,至21K达到最大值4.4cm3Kmol-1,随后急剧降至3.4cm3Kmol-1;在对χM-T,χMT–T曲线进行分析拟合后得到郎德因子为2.36,分子内镍离子之间的磁交换常数为12.97cm-1,分子间镍离子的磁交换常数为:-0.36cm-1;且χM –1-T曲线遵从居里-韦斯定律,对其拟合得到韦斯常数为11.77K,居里常数为3.00cm3Kmol–1;大而正的韦斯常数,分子内磁交换常数及χMT-T曲线趋势均暗示分子内镍离子间存在铁磁交换,其整体表现为铁磁性;
所述[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的合成方法具体步骤为:
将0.114-0.228克分析纯3-甲氧基-2-羟基苯甲醛溶于5-10毫升分析纯无水甲醇与5-10毫升分析纯乙腈的混合溶液中,再依次加入0.274-0.548g分析纯六水合高氯酸镍和0.098-0.196g分析纯叠氮化钠,并搅拌10分钟使溶液混合均匀后加入分析纯三乙胺调节至pH=5.5,继续搅拌20分钟后,将所制得的混合液静置于室温下,三天后得到绿色块状晶体,过滤,并用分析纯甲醇洗涤干净,于空气中晾干后得到产品[Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2
表一 [Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的晶体学参数
表二 [Ni2Na2(hmb)4(N3)2(CH3CN)2]·(CH3CN)2的键长和键角(°)
CN201410292900.8A 2014-06-25 2014-06-25 磁性材料[Ni2Na2(hmb)4(N3)2(CH3CN)2]· (CH3CN)2及合成方法 Expired - Fee Related CN104036913B (zh)

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