CN111675727A - 作为用于检测气体分析物的传感器化合物的金属络合物 - Google Patents
作为用于检测气体分析物的传感器化合物的金属络合物 Download PDFInfo
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 27
- -1 mercapto-imidazolyl Chemical group 0.000 claims abstract description 25
- 239000003446 ligand Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 125000001041 indolyl group Chemical group 0.000 claims description 10
- 125000003226 pyrazolyl group Chemical group 0.000 claims description 10
- 229910016021 MoTe2 Inorganic materials 0.000 claims description 3
- 229910003090 WSe2 Inorganic materials 0.000 claims description 3
- 229910052961 molybdenite Inorganic materials 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 7
- 125000004429 atom Chemical group 0.000 description 7
- 150000001336 alkenes Chemical class 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000012491 analyte Substances 0.000 description 3
- 239000003039 volatile agent Substances 0.000 description 3
- OXFSTTJBVAAALW-UHFFFAOYSA-N 1,3-dihydroimidazole-2-thione Chemical compound SC1=NC=CN1 OXFSTTJBVAAALW-UHFFFAOYSA-N 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004345 fruit ripening Effects 0.000 description 1
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- 229940088597 hormone Drugs 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
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- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/127—Composition of the body, e.g. the composition of its sensitive layer comprising nanoparticles
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- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
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Abstract
公开了一种传感器化合物和包含所述传感器化合物的传感器组合物。所述传感器化合物包括金属原子和巯基咪唑基多齿配体。所述传感器组合物包含所述传感器化合物和金属二硫属化物。
Description
背景
示例性实施方式涉及基于金属络合物的传感器组合物的技术。
具有双键的挥发性化合物形成一组重要的检测用化合物。特别地，挥发性烯烃(例如乙烯)为相当重要的分析物。特别地，乙烯的检测对于与生产和农业相关的工业是重要的。然而，由于其小尺寸和有限的化学官能度，乙烯是一种对于检测具有挑战性的化学分析物。需要比当前可用的那些方法更有效和灵敏的检测方法。
简述
公开了一种传感器化合物，其包含金属原子和巯基咪唑基多齿配体。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述金属原子为Cu(I)、Ag(I)或Au(I)。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述巯基咪唑基多齿配体包含多于一个巯基咪唑基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述巯基咪唑基多齿配体还包含吡唑基或吲哚基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述化合物具有式(I)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团，M为Au(I)、Ag(I)或Cu(I)，以及L为吡唑基、巯基咪唑基或吲哚基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述化合物具有式(II)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团。
还公开了一种传感器组合物，所述组合物包含传感器化合物和金属二硫属化物，其中所述传感器化合物包含金属原子和巯基咪唑基多齿配体。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述金属原子为Cu(I)、Ag(I)或Au(I)。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述巯基咪唑基配体包含多于一个巯基咪唑基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述巯基咪唑基配体还包含吡唑基或吲哚基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述传感器化合物具有式(I)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团，M为Au、Ag或Cu，以及L为吡唑基、巯基咪唑基或吲哚基。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述传感器化合物具有式(II)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团。
除了上述特征中的一个或多个之外，或者作为前述实施方式中的任一个的替代，所述金属二硫属化物包含MoS2、WS2、MoSe2、WSe2、MoTe2、WTe2及其组合。
详细描述
通过举例而非限制的方式，在此呈现了所公开的装置和方法的一个或多个实施方式的详细描述。
具有双键或三键的挥发性化合物为一组重要的检测和监测用化合物。如本文所用，术语挥发性是指在标准温度和压力下呈气相的化合物。示例性的化合物包括NO2、CO2、CO和烯烃如C2H4 (乙烯)。作为负责引发果实成熟以及植物发育中其他过程的激素，乙烯为对于与生产和农业相关的工业相当重要的分析物。由于其小尺寸和有限的化学官能度，乙烯和其他挥发性烯烃为对于检测具有挑战性的化学品。本文公开了能够检测具有双键或三键的挥发性化合物(如乙烯和其他挥发性烯烃)的传感器化合物和传感器组合物。这些化合物能够以低至100十亿分率(ppb)的水平被检出。
所述传感器化合物包含金属原子和多齿巯基咪唑基配体，所述金属原子和多齿巯基咪唑基配体组合以形成多齿金属-配体配位络合物。巯基咪唑基配体包含至少一个巯基咪唑基，其通过硫原子与金属原子配位。除了巯基咪唑基之外，配体还可以包含吡唑基、吲哚基或其组合，其可以被称为杂配配体。如果巯基咪唑基配体仅包含巯基咪唑基，其可以被称为均配配体。所述传感器化合物可具有式(I)
其中，R1和R2在每种情况下可为氢或含有一个或多个碳原子的基团。在一些实施方式中，R1和R2在每种情况下可为氢或具有1-5个碳的烷基。式(I)中的L可为吡唑基、巯基咪唑基或吲哚基。式(I)中的VOC的存在是为了显示与具有π键的挥发性化合物的假定相互作用。不受理论束缚，认为挥发性化合物的π键与金属-配体络合物上的空配位点配位。所述配位改变络合物的电子构型且可影响金属-配体络合物的电性质。
巯基咪唑基金属-配体络合物的更具体的实例如式(II)所示。
在式(II)中存在三个巯基咪唑基。R1和R2如式(I)中所定义。
巯基咪唑基金属-配体络合物中的金属原子可为第11族元素，例如Cu(I)、Ag(I)或Au(I)。
传感器化合物(或多种传感器化合物)可以与金属二硫属化物组合，以形成传感器组合物。金属二硫属化物包括过渡金属二硫属化物，其为由6B族金属和硫属化物(S、Se和Te)形成的化合物。示例性的金属二硫属化物包括MoS2、WS2、MoSe2、WSe2、MoTe2、WTe2及其组合。金属二硫属化物为纳米尺寸颗粒形式。"纳米尺寸"当应用于金属二硫属化物时，是指颗粒的至少一个维度小于或等于100纳米的事实。金属二硫属化物通常可以以厚度为100纳米或更小的薄片形式得到，但不排除其他物理形式，例如少层或单层材料，要说明的是该物理形式具有小于或等于100纳米的至少一个线性维度。
传感器化合物和金属二硫属化物相互作用，并且当挥发性化合物结合到传感器化合物时，传感器组合物的电性质通过增加电导率或电阻率而改变。电性质的变化是一致的且可预测的，允许可靠地检测目标挥发性化合物。
本文所使用的术语仅用于描述特定实施方式的目的，并且不旨在限制本公开内容。如本文所用，单数形式"a"、"an"和"the"旨在也包括复数形式，除非上下文另有明确指示。还将理解，术语"包含(comprises)"和/或"包含(comprising)"在本说明书中使用时，规定所陈述的特征、整数、步骤、操作、要素和/或组分的存在，但不排除一个或多个其他特征、整数、步骤、操作、要素、组分和/或其群组的存在或添加。
尽管已经参考一个或多个示例性实施方式描述了本公开内容，但是本领域技术人员将理解，在不脱离本公开内容的范围的情况下，可以进行各种改变并且可以用等同物替换其要素。此外，在不脱离本公开内容的实质范围的情况下，可以进行许多修改以使特定的情况或材料适应本公开内容的教导。因此，旨在本公开内容不限于作为预期实施本公开内容的最佳模式而公开的特定实施方式，而是本公开内容将包括落入权利要求的范围内的所有实施方式。
Claims (11)
1.一种传感器化合物，所述传感器化合物包含金属原子和巯基咪唑基多齿配体。
2.根据权利要求1所述的传感器化合物，其中所述金属原子为Cu(I)、Ag(I)或Au(I)。
3. 根据权利要求1或2所述的传感器化合物，其中所述巯基咪唑基多齿配体还包含吡唑基或吲哚基。
4.根据权利要求1所述的传感器化合物，其中所述化合物具有式(I)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团，M为Au(I)、Ag(I)或Cu(I)，以及L为吡唑基、巯基咪唑基或吲哚基。
5.根据权利要求1所述的传感器化合物，其中所述化合物具有式(II)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团。
6.一种传感器组合物，所述组合物包含传感器化合物和金属二硫属化物，其中所述传感器化合物包含金属原子和巯基咪唑基多齿配体。
7.根据权利要求6所述的传感器组合物，其中所述金属原子为Cu(I)、Ag(I)或Au(I)。
8. 根据权利要求6或7所述的传感器组合物，其中所述巯基咪唑基配体还包含吡唑基或吲哚基。
9.根据权利要求6所述的传感器组合物，其中所述传感器化合物具有式(I)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团，M为Au、Ag或Cu，以及L为吡唑基、巯基咪唑基或吲哚基。
10.根据权利要求6所述的传感器组合物，其中所述传感器化合物具有式(II)
其中，R1和R2在每种情况下可为氢或具有一个或多个碳的基团。
11.根据权利要求6至10中任一项所述的传感器组合物，其中所述金属二硫属化物包含MoS2、WS2、MoSe2、WSe2、MoTe2、WTe2及其组合。
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| US201962816672P | 2019-03-11 | 2019-03-11 | |
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