CN113444044A - 基于方酸的介电转变材料及其制备方法 - Google Patents
基于方酸的介电转变材料及其制备方法 Download PDFInfo
- Publication number
- CN113444044A CN113444044A CN202110894498.0A CN202110894498A CN113444044A CN 113444044 A CN113444044 A CN 113444044A CN 202110894498 A CN202110894498 A CN 202110894498A CN 113444044 A CN113444044 A CN 113444044A
- Authority
- CN
- China
- Prior art keywords
- squaric acid
- pyrazole
- dielectric
- transition material
- material based
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PWEBUXCTKOWPCW-UHFFFAOYSA-N squaric acid Chemical compound OC1=C(O)C(=O)C1=O PWEBUXCTKOWPCW-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 230000009466 transformation Effects 0.000 title description 3
- 230000007704 transition Effects 0.000 claims abstract description 32
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000013078 crystal Substances 0.000 claims abstract description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 150000003217 pyrazoles Chemical class 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- -1 squaric acid anion Chemical class 0.000 abstract description 2
- 230000000638 stimulation Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 9
- IHXWECHPYNPJRR-UHFFFAOYSA-N 3-hydroxycyclobut-2-en-1-one Chemical compound OC1=CC(=O)C1 IHXWECHPYNPJRR-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 125000003456 2,6-dinitrophenyl group Chemical group [H]C1=C([H])C(=C(*)C(=C1[H])[N+]([O-])=O)[N+]([O-])=O 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000002447 crystallographic data Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000547 structure data Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/703—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups
- C07C49/707—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups a keto group being part of a three- to five-membered ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
技术领域
本发明属于材料技术领域,具体涉及基于方酸的介电转变材料及其制备方法。
背景技术
介电转变材料,该类材料在外界条件(温度、压力、光照、化学等)激励下,介电常数实部发生高、低介电态的转变,在开关、传感、换能、驱动等方面具有应用前景。
近年来,随着对新型电介质材料的需求,基于有机小分子的电介质材料逐渐引起了人们的关注,该类材料具有结构多样性、柔性、绿色环保,多功能性等特点,有望在某些方面超越或者替代现有的介电材料,例如,分子基铁电材料、有机-无机杂化多铁材料、分子基介电响应材料等。
发明内容
技术问题:为发现具有应用前景的新型电介质材料,本发明提供基于方酸的介电转变材料;本发明的另一目的是公开其制备方法。
技术方案:为实现上述发明目的,本发明的基于方酸的介电转变材料,该材料为方酸和吡唑形成的氢键型有机盐,化学式为C7H6N2O4,分子结构为:
进一步地,基于方酸的介电转变材料的制备方法,包括如下步骤:
(1)将方酸和吡唑分别溶于去离子水中;
(2)将吡唑水溶液缓慢滴加到方酸水溶液中,持续搅拌至溶液澄清,过滤静置,室温缓慢挥发,得到无色透明块状晶体,即得。
进一步地,所述的步骤(1)中,方酸和吡唑的摩尔比为1:1。
进一步地,所述的步骤(2)中,室温缓慢挥发时间为5~7天。
有益效果:本发明提供了一种分子基介电转变晶态材料,该晶体在低温220K左右,介电常数产生台阶式的转变,以1MHz为例,从270K开始缓慢降温,在270K到220K时介电常数缓慢降低,从220K到120K时,介电常数发生急剧的降低,介电常数从9降低到3.5左右,升温时,介电常数又可逆的恢复,Δε'=5.5。可用于制备智能材料、信息存储材料、储能材料等。
附图说明
图1是本发明合成的基于方酸的介电转变材料的粉末衍射图谱;
图2是本发明合成的基于方酸的介电转变材料的最简成分图;
图3是本发明合成的基于方酸的介电转变材料的氢键网络图,形成二维平面结构;
图4是本发明合成的基于方酸的介电转变材料的介电数据图;
图5是本发明合成的基于方酸的介电转变材料的结构图。
具体实施方式
下面结和具体实例对本发明进行详细说明。
基于方酸的介电转变材料为方酸和吡唑合成的有机盐,化学式为C7H6N2O4,分子结构为:
基于方酸的介电转变材料的晶体是一种具有介电转变特性的晶态化合物,该化合物为方酸和吡唑形成的氢键型有机盐,化学式为C7H6N2O4。
基于方酸的介电转变材料的制备方法,将方酸和吡唑按照摩尔比1:1分别溶于去离子水中,将吡唑水溶液缓慢滴加到方酸水溶液中,持续搅拌至溶液澄清,过滤静置,室温缓慢挥发,得到无色透明块状晶体,即得。
方酸和吡唑按照摩尔比1:1分别溶于等体积的去离子水中或者方酸和吡唑按照摩尔比1:1分别溶于体积不相等的去离子水中,保证方酸和吡唑溶解即可。
方酸和吡唑之间通过N-H…O氢键连接形成带状的结构。
以去离子水为溶剂,通过缓慢挥发方酸和吡唑的水溶液,结晶得到的无色透明晶体。
在降低温度时,其介电常数具有可逆的台阶式转变。
室温缓慢挥发时间为5~7天一周左右。
1实验部分
1.1仪器和试剂
X射线单晶衍射仪为日本Rigaku公司的Mini单晶衍射仪,介电测量仪是常州同惠电子有限公司的TH2828型测试仪,组合型多功能水平X射线衍射仪来自日本Rigaku公司,型号为Ultima IV。
实验室所用的试剂方酸和吡唑均为分析纯试剂。
1.2晶体的合成方法
将1.00g(8.76mmol)方酸溶解在10ml去离子水中,再称取0.59g(8.76mmol)吡唑溶于10ml的去离子水中,将吡唑水溶液缓慢滴加到方酸水溶液中,不断搅拌至澄清,置于通风橱内缓慢挥发,一周后析出无色透明块状晶体,以方酸计算产品收率约为80%。
2结果与讨论
2.1 X射线粉末衍射分析
将晶体样品在X射线衍射仪(PXRD)上收集衍射数据。测试角度范围为5°-50°,测试速率为20°/min。将X射线衍射所得数据与室温单晶结构模拟所得数据进行XRD谱图对比,如图1所示,两者峰位完全一致,可以确定样品为纯相。
2.2单晶结构分析
挑选尺寸约为0.2×0.2×0.2mm的单晶,在X射线单晶衍射仪上,使用Mo-Kα射线收集所有化合物的晶体数据。采用SHELXTL 2014软件包用直接法解析晶体结构。所有非氢原子均各向异性精修,所有氢原子都是通过理论加氢的方式添加。从表1可以看出,该晶体结构,结晶于三斜晶系,空间群,a=5.0592(5),b=7.9824(9),c=10.2790(12),a=108.056(10),β=94.793(9),γ=90.339(9),V=393.07(8),Z值为2。
表1 所得化合物的晶体结构数据
[a]R1=Σ||Fo|-|Fc||/|Fo|.[b]wR2=[Σw(Fo 2-Fc 2)2]/Σw(Fo 2)2]1/2.[c]最大和最小的残余电子密度。
图2为293K时,化合物的不对称单元图,由一个方酸分子和一个吡唑分子组成。图3在293K时,分析其晶体结构,发现方酸和吡唑二者之通过氢键连接,形成平面氢键网络,图5(a)是本发明合成的基于方酸的介电转变材料的一维带状结构;图5(b)是本发明合成的基于方酸的介电转变材料的晶体结构堆积图。图5(a)为方酸和两个吡唑通过N-H…O氢键连接,不断延伸成一维带状结构。图5(b)为所得带状结构在空间中形成的层状堆叠结构。
表2 化合物的氢键表
2.3化合物的介电测试。
将化合物的粉末样品在压片机上压片,用银胶和铜丝将片固定在电极上,在介电测量仪上测量其介电,如图4所示是1MHZ频率下介电常数随温度变化关系曲线,在低温区间(120K-240K),在降温和升温过程中介电常数随温度的变化在220K左右出现拐点,其关系曲线有可逆转变平台,由以上可知:化合物1在低温测量过程中经历了可逆的介电转变现象。
Claims (6)
2.权利要求1所述的基于方酸的介电转变材料的制备方法,其特征在于:包括如下步骤:
(1)将方酸和吡唑分别溶于去离子水中;
(2)将吡唑水溶液缓慢滴加到方酸水溶液中,持续搅拌至溶液澄清,过滤静置,室温挥发,得到无色透明块状晶体,即得。
3.根据权利要求2所述的基于方酸的介电转变材料的制备方法,其特征在于:所述的步骤(1)中,方酸和吡唑的摩尔比为1:1。
6.根据权利要求2所述的基于方酸的介电转变材料的制备方法,其特征在于:所述的步骤(2)中,室温挥发时间为5~7天。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110894498.0A CN113444044B (zh) | 2021-08-05 | 2021-08-05 | 基于方酸的介电转变材料及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110894498.0A CN113444044B (zh) | 2021-08-05 | 2021-08-05 | 基于方酸的介电转变材料及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113444044A true CN113444044A (zh) | 2021-09-28 |
CN113444044B CN113444044B (zh) | 2024-01-26 |
Family
ID=77818093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110894498.0A Active CN113444044B (zh) | 2021-08-05 | 2021-08-05 | 基于方酸的介电转变材料及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113444044B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110105295A (zh) * | 2019-06-04 | 2019-08-09 | 宁夏大学 | 二组分氢键共晶化合物及其制备方法和应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3246319A1 (de) * | 1982-12-15 | 1984-06-20 | Basf Ag, 6700 Ludwigshafen | Copolymere von pyrrolen mit quadratsaeure, verfahren zu ihrer herstellung sowie ihre verwendung |
CN110105295A (zh) * | 2019-06-04 | 2019-08-09 | 宁夏大学 | 二组分氢键共晶化合物及其制备方法和应用 |
-
2021
- 2021-08-05 CN CN202110894498.0A patent/CN113444044B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3246319A1 (de) * | 1982-12-15 | 1984-06-20 | Basf Ag, 6700 Ludwigshafen | Copolymere von pyrrolen mit quadratsaeure, verfahren zu ihrer herstellung sowie ihre verwendung |
CN110105295A (zh) * | 2019-06-04 | 2019-08-09 | 宁夏大学 | 二组分氢键共晶化合物及其制备方法和应用 |
Non-Patent Citations (4)
Title |
---|
D.BRITTON: "Two-dimensional packing and pseudosymmetry", 《ACTA CRYSTALLOGRAPHICA SECTION B》, vol. 56, pages 828 - 832 * |
ISABELLA L. KARLE等: "A Persistent Preference for Layer Motifs in Self-Assemblies of Squarates and Hydrogen Squarates by Hydrogen Bonding [X-H···O; X =N,O, or C]: A Crystallographic Study of Five Organic Salts", 《J. AM. CHEM. SOC.》, vol. 118, pages 7128 - 7133 * |
S. YAMAMURA等: "STRUCTURAL PHASE TRANSITION AND DIELECTRIC BEHAVIOR OF o-PHENYLENEBIS(SQUARIC ACID) SALT", 《ACTA CRYST.》, vol. 58, pages 149 * |
TOMOYUKI AKUTAGAWA等: "Proton Transfer and a Dielectric Phase Transition in the Molecular Conductor (HDABCO+)2(TCNQ)3", 《J. AM. CHEM. SOC.》, vol. 126, pages 291 - 294 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110105295A (zh) * | 2019-06-04 | 2019-08-09 | 宁夏大学 | 二组分氢键共晶化合物及其制备方法和应用 |
CN110105295B (zh) * | 2019-06-04 | 2022-08-26 | 宁夏大学 | 二组分氢键共晶化合物及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN113444044B (zh) | 2024-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Mahmoudi et al. | Counter-ion influence on the coordination mode of the 2, 5-bis (4-pyridyl)-1, 3, 4-oxadiazole (bpo) ligand in mercury (II) coordination polymers,[Hg (bpo) n X 2]: X= I−, Br−, SCN−, N 3− and NO 2−; spectroscopic, thermal, fluorescence and structural studies | |
Chai et al. | Dielectric phase transition of an A 2 BX 4-type perovskite with a pentahedral to octahedral transformation | |
CN113444044B (zh) | 基于方酸的介电转变材料及其制备方法 | |
CN106588981B (zh) | 一种具有高量子产率的温度敏感的荧光变色材料 | |
WO2019196132A1 (zh) | 戊二胺癸二酸盐及其晶体 | |
CN114316288B (zh) | 一种绿色荧光高连接Cd4-有机配位聚合物及其制法与应用 | |
CN113265064B (zh) | 镉基超分子聚合物及其制法与应用 | |
CN109054036B (zh) | 蓝绿色荧光的三明治型锰配位聚合物、制备方法及其在阳离子检测中的应用 | |
CN111138681B (zh) | 基于稀土金属有机框架结构的荧光材料及其制备方法 | |
CN110862404A (zh) | 一种基于环己烷六羧酸和联吡啶的金属有机骨架晶体材料及其制备方法 | |
CN110862549A (zh) | 一种基于延胡索酸及4,4’-联吡啶的三维金属-有机骨架晶体材料及其制备方法 | |
CN108586768B (zh) | 二维锌配位聚合物及其制备方法 | |
Xu et al. | Dual dielectric-responsive hybrid materials with fluorescent properties | |
CN104844633A (zh) | 基于甲基吡啶-三唑四核Ag(I)簇的高温溶剂热合成及应用 | |
CN106279298B (zh) | 一种手性d-酒石酸四十八核铜簇合物及其绿色合成方法 | |
CN103951709A (zh) | 一种茂基过渡金属镍氮配合物及其制备方法和应用 | |
CN110698683B (zh) | 一维镝聚合物及其制备方法 | |
CN104788507B (zh) | 一种镁掺杂金属‑有机框架DMMg0.5Mn0.5F单晶材料及其制备方法 | |
CN104788504B (zh) | 一种成分可控钴掺杂金属‑有机框架DMMnF单晶材料及其制备方法 | |
CN110284181A (zh) | 地尔硫卓ab异构体的单晶制备方法 | |
CN110804189B (zh) | 三维镥聚合物及其制备方法 | |
CN110724275B (zh) | 一种钼基超分子相变晶体材料及其制备方法 | |
CN109456492A (zh) | 一种含Cu(II)的金属有机骨架材料及其制备方法 | |
CN117624197A (zh) | 一种含腺嘌呤超分子光电功能材料、制备方法及系统 | |
CN114031787B (zh) | 一种检测三价铁离子的铜基发光金属有机骨架材料及其制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |