CN106902553A - A kind of application for being based on ten yuan of melon ring Supramolecular self assembly bodies and application process - Google Patents

A kind of application for being based on ten yuan of melon ring Supramolecular self assembly bodies and application process Download PDF

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CN106902553A
CN106902553A CN201710184270.6A CN201710184270A CN106902553A CN 106902553 A CN106902553 A CN 106902553A CN 201710184270 A CN201710184270 A CN 201710184270A CN 106902553 A CN106902553 A CN 106902553A
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yuan
melon
self assembly
melon ring
supramolecular self
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CN106902553B (en
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姚宇清
陶朱
祝黔江
杨梅
王新新
王成会
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Guizhou University
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Guizhou University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01Separation of suspended solid particles from liquids by sedimentation using flocculating agents

Abstract

It is based on ten yuan of trappings of melon ring Supramolecular self assembly bodies, precipitation and release metal ions the invention discloses a kind of application for being based on ten yuan of melon ring Supramolecular self assembly bodies and application process.The present invention can the effectively trapping of wide spectrum, precipitate metal ion, and specific metal ion is trapped in specific system, can obtain ten yuan of melon rings of not metal ion by dissolving crystallized in nitric acid system after trapping.

Description

A kind of application for being based on ten yuan of melon ring Supramolecular self assembly bodies and application process
Technical field
Application and application process the present invention relates to a kind of Supramolecular self assembly body, it is particularly a kind of to be surpassed based on ten yuan of melon rings The application of molecular self-assembling body and application process.
Background technology
Melon ring (Cucurbit [n] uril), also known as Cucurbituril, (abbreviation CB [n] or Q [n]), because structure is obtained like pumpkin Name, is the new caged host compound of another class after the macrocyclic compound such as crown ether, cyclodextrin, calixarenes, from structural From the point of view of in matter, melon ring has the hydrophobic cavity and both ends open of high degree of symmetry and is covered with the carbonylic oxygen atom of polarity, The feature of this structure can under solution state selectivity the suitable organic and inorganic and biology of inclusion size dimension There is hydrophilic complex effect in the small molecules such as molecule, in port with research again or with dipole or ionic compound What is worked is deeply carried out, and melon ring is applied to the aspects such as organic synthesis, molecular recognition, nano material, catalysis, separation gradually.Ten yuan Melon ring relatively low product of the content during as melon cyclization, reports first in Day seminar in 2002 in Q [5]@Q [10] form Road, but because content is low, the factor such as hardly possible separation limits its development with application.
The content of the invention
It is an object of the present invention to provide a kind of application for being based on ten yuan of melon ring Supramolecular self assembly bodies and application process. The present invention can the effectively trapping of wide spectrum, precipitate metal ion, and specific metal ion is trapped in specific system, in trapping Ten yuan of melon rings of not metal ion can be obtained by dissolving crystallized in nitric acid system afterwards.
Technical scheme:It is a kind of to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is based on ten yuan of melon rings The trapping of Supramolecular self assembly body, precipitation and release metal ions.
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, described ten yuan of melon ring Supramolecular self assembly bodies are also used In the trapping special metal ion in specific system.
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, the specific system is alkali metal system Na+、K+、 Rb+、Cs+, selectivity does not precipitate K in the system+
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, the specific system is comprising Mg2+、Ca2+、Sr2 +、Ba2+Alkaline-earth metal system, in the system selectivity precipitate C a2+
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, the specific system is lanthanide rare system, should The precipitation light rare earth La of selectivity in system3+、Ce3+And Pr3+
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, the specific system includes Cs+、Ba2+And Ln3+, The precipitate C s of selectivity in the system+
It is foregoing based on ten yuan of applications of melon ring Supramolecular self assembly body, the specific system is IIIAMetal system, the body The precipitation Ga of selectivity in system3+
It is a kind of foregoing based on ten yuan of application processes of the application of melon ring Supramolecular self assembly body, it is by the self-assembly For trapping, precipitate metal ion, and crystal is obtained in nitric acid by the sediment or dissolution of crystals that will obtain, to ten yuan of melons Ring is reclaimed, while being discharged to metal ion.
It is foregoing based on ten yuan of application processes of the application of melon ring Supramolecular self assembly body, comprise the following steps:
A. by ten yuan of melon rings addition concentrated hydrochloric acids, concussion dissolves it, obtains A product;
B. slaine is added to the water, is shaken, dissolve it, obtain B product;
C. A product are mixed with B product, obtains white depositions, be filtrated to get white depositions;
D. by white depositions obtained above addition salpeter solution, heating for dissolving stands 2~3 days and obtains in atmosphere To ten yuan of melon ring crystal.
It is foregoing based on ten yuan of application processes of the application of melon ring Supramolecular self assembly body, the white depositions continue to soak In original solution, and it is placed on storage under the conditions of air at room temperature and can obtain within 1-3 days self-assembly crystal;By self-assembly crystal Add in salpeter solution, heating for dissolving stands in atmosphere, obtains within 2~3 days ten yuan of melon ring crystal.
Beneficial effects of the present invention:
The present invention can the effectively trapping of wide spectrum, precipitate metal ion, and trap in specific system again specific metal from Son, it is possible to obtain crystal by by being precipitated and dissolved in nitric acid of obtaining, ten yuan of melon rings are reclaimed, enter to metal ion Row release, the application value to exploring melon ring is great, with extensive development prospect.
Brief description of the drawings
Fig. 1 is ten yuan of structure charts of melon ring Q [10] of host molecule;
Fig. 2 is ten yuan of melon ring Q [10]+Ba2+Structure chart and crystal detail view;
Fig. 3 (a) is ten yuan of melon ring Q [10]+La3+Structure chart;
Fig. 3 (b) is ten yuan of melon ring Q [10]+Ce3+Structure chart;
Fig. 4 is ten yuan of melon rings Q [10] and BaCl2The energy spectrum diagram of precipitation;
Fig. 5 is the energy spectrum diagram that ten yuan of melon rings Q [10] are precipitated in alkali metal system;
Fig. 6 is the energy spectrum diagram that ten yuan of melon rings Q [10] are precipitated in alkaline-earth metal system;
Fig. 7 is ten yuan of melon rings Q [10] in Cs+, Ba2+, Ln3+The energy spectrum diagram precipitated in system;
Fig. 8 is the energy spectrum diagram that ten yuan of melon rings Q [10] are precipitated in lanthanide rare metal system;
Fig. 9 is ten yuan of melon rings Q [10] IIIAThe energy spectrum diagram precipitated in metal system;
Figure 10 is deposited in nitric acid system the energy spectrum diagram for obtaining crystal for what capture metal ions were obtained;
Figure 11 is the principle schematic of present invention trapping and release metal ions.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation to present invention limitation.
Embodiments of the invention
Embodiment 1, a kind of it is based on ten yuan of applications of melon ring Supramolecular self assembly body, the ten yuan of structure chart of melon ring such as accompanying drawings 1 Shown, it is used to trapping, precipitate metal ion, and obtains crystal by by being precipitated and dissolved in nitric acid of obtaining, to ten yuan of melons Ring is reclaimed, and specific method is as follows:
A. ten yuan of melon rings of 20mg are dissolved in 2mL concentrated hydrochloric acids, are shaken, dissolve it, obtain A product;
B. by 2mg BaCl2Add in 2mL water, concussion dissolves it, obtains B product;
C. A product are mixed with B product in beaker, white depositions is obtained in the moment of mixing, be filtrated to get white precipitate Thing, is characterized, it is known that contain Ba in white precipitate by power spectrum2+With melon ring, such as Fig. 4;Or be dipped in the white depositions former molten In liquid, storage can obtain crystal in 3 days under the conditions of being placed on air at room temperature, is characterized by X-ray single crystal diffractometer and can obtain Fig. 2 Structure;
D. by precipitation obtained above or crystal 17.9mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere It can obtain crystal 14.4mg, characterized by power spectrum and understand that crystal is ten yuan of melon rings, not metal ion, as shown in Figure 10, The crystal can be continued with, and trapping metal ion, precipitation are carried out in hydrochloric acid system.
Embodiment 2, it is a kind of be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is used to be caught in lanthanide metal ion Collection La3+、Ce3+And Pr3+Metal ion, and crystal is obtained by by being precipitated and dissolved in nitric acid of obtaining, ten yuan of melon rings are carried out Reclaim, specific method is as follows:
A. by ten yuan of melon rings addition concentrated hydrochloric acids of 20mg, concussion dissolves it, obtains A product;
B. 14 kinds of each 2mg of lanthanide metal nitrate are added to the water, are shaken, dissolve it, obtain B product;
C. A product are mixed with B product in beaker, white depositions can be obtained in the moment of mixing, be filtrated to get white Sediment, is characterized by power spectrum, or the white depositions are dipped in original solution, is placed on storage under the conditions of air at room temperature Can obtain crystal within 1 day, characterized by X-ray single crystal diffractometer;
D. understand there are tri- kinds of metallic elements of melon ring and La, Ce, Pr in the white precipitate for obtaining by spectrum experiment result, such as Shown in accompanying drawing 8;Two kinds of structures for having melon ring and La, Ce, respectively Fig. 3 (a) and figure are understood by X-ray single crystal diffractometer result Structure shown in 3 (b);
E. by precipitation obtained above or crystal 15.2mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere It can obtain crystal 13.2mg, characterized by power spectrum and understand that crystal is ten yuan of melon rings, not metal ion.The crystal can be after It is continuous to utilize, trapping metal ion, precipitation are carried out in hydrochloric acid system.
Embodiment 3, it is a kind of be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is used in alkali metal system Na+、K+、 Rb+、Cs+It is middle selective not precipitate K+, and crystal is obtained by by being precipitated and dissolved in nitric acid of obtaining, ten yuan of melon rings are entered Row is reclaimed, and specific method is as follows:
A. by ten yuan of melon rings addition concentrated hydrochloric acids of 20mg, concussion dissolves it, obtains A product;
B. by Na+、K+、Rb+、Cs+Each 2mg of nitrate is added to the water, concussion, dissolves it, obtains B product;
C. A product are mixed with B product in beaker, white depositions can be obtained in the moment of mixing, be filtrated to get white Sediment, is characterized by power spectrum, or the white depositions are dipped in original solution, is placed on storage under the conditions of air at room temperature Can obtain crystal within 1 day, characterized by X-ray single crystal diffractometer;
D. understand there is melon ring and Na in the white precipitate for obtaining by spectrum experiment result+、Rb+、Cs+Three kinds of metallic elements; The energy spectrum diagram of precipitation is as shown in Figure 5;
E. by precipitation obtained above or crystal 16.3mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere Crystal 13.6mg can be obtained in it, is characterized by power spectrum and is understood that crystal is ten yuan of melon rings, not metal ion.The crystal can be with Continue with, trapping metal ion, precipitation are carried out in hydrochloric acid system.
Embodiment 4, it is a kind of be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is used for comprising Mg2+、Ca2+、Sr2 +、Ba2+Alkaline-earth metal system in selectivity precipitate C a2+, and crystal is obtained by by being precipitated and dissolved in nitric acid of obtaining, Ten yuan of melon rings are reclaimed, specific method is as follows:
A. by ten yuan of melon rings addition concentrated hydrochloric acids of 20mg, concussion dissolves it, obtains A product;
B. by Mg2+、Ca2+、Sr2+、Ba2+Each 2mg of metal nitrate is added to the water, concussion, dissolves it, obtains B product;
C. A product are mixed with B product in beaker, white depositions can be obtained in the moment of mixing, be filtrated to get white Sediment, is characterized by power spectrum, or the white depositions are dipped in original solution, is placed on storage under the conditions of air at room temperature Can obtain crystal within 1 day, characterized by X-ray single crystal diffractometer;
D. understand there is melon ring and Ca in the white precipitate for obtaining by spectrum experiment result2+Metallic element;The power spectrum of precipitation Figure is as shown in Figure 6;
E. by precipitation obtained above or crystal 18.8mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere It can obtain crystal 16.9mg, characterized by power spectrum and understand that crystal is ten yuan of melon rings, not metal ion;The crystal can be after It is continuous to utilize, trapping metal ion, precipitation are carried out in hydrochloric acid system.
Embodiment 5, it is a kind of be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is used for comprising Cs+、Ba2+And Ln3+ Middle selective precipitate C s+Metal ion, and crystal is obtained by by being precipitated and dissolved in nitric acid of obtaining, ten yuan of melon rings are entered Row is reclaimed, and specific method is as follows:
A. by ten yuan of melon rings addition concentrated hydrochloric acids of 20mg, concussion dissolves it, obtains A product;
B. by Cs+、Ba2+And Ln3+Each 2mg of metal nitrate is added to the water, concussion, dissolves it, obtains B product;
C. A product are mixed with B product in beaker, white depositions can be obtained in the moment of mixing, be filtrated to get white Sediment, is characterized by power spectrum, or the white depositions are dipped in original solution, is placed on storage under the conditions of air at room temperature Can obtain crystal within 1 day, characterized by X-ray single crystal diffractometer;
D. understand there is melon ring and Cs in the white precipitate for obtaining by spectrum experiment result+Metallic element;Precipitation energy spectrum diagram As shown in Figure 7;
E. by precipitation obtained above or crystal 16.2mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere It can obtain crystal 13.3mg, characterized by power spectrum and understand that crystal is ten yuan of melon rings, not metal ion.The crystal can be after It is continuous to utilize, trapping metal ion, precipitation are carried out in hydrochloric acid system.
Embodiment 6, it is a kind of be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is used for IIIASelected in metal system The precipitation Ga of selecting property3+, and crystal is obtained by by being precipitated and dissolved in nitric acid of obtaining, ten yuan of melon rings are reclaimed, specifically Method is as follows:
A. by ten yuan of melon rings addition concentrated hydrochloric acids of 20mg, concussion dissolves it, obtains A product;
B. by IIIAEach 2mg of metal system metal nitrate is added to the water, concussion, dissolves it, obtains B product;
C. A product are mixed with B product in beaker, white depositions can be obtained in the moment of mixing, be filtrated to get white Sediment, is characterized by power spectrum, or the white depositions are dipped in original solution, is placed on storage under the conditions of air at room temperature Can obtain crystal within 1 day, characterized by X-ray single crystal diffractometer;
D. understand there is melon ring and Ga in the white precipitate for obtaining by spectrum experiment result3+Metallic element;The power spectrum of precipitation Figure is as shown in Figure 9;
E. by precipitation obtained above or crystal 17.0mg in salpeter solution is added, heating for dissolving stands 3 in atmosphere It can obtain crystal 15.1mg, characterized by power spectrum and understand that crystal is ten yuan of melon rings, not metal ion.The crystal can be after It is continuous to utilize, trapping metal ion, precipitation are carried out in hydrochloric acid system.

Claims (10)

  1. It is 1. a kind of to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is to be based on ten yuan of melon ring supermolecules certainly Assembly trapping, precipitation and release metal ions.
  2. It is 2. according to claim 1 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:Described ten yuan Melon ring Supramolecular self assembly body is for trapping special metal ion in specific system.
  3. It is 3. according to claim 2 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is described specific System is alkali metal system Na+、K+、Rb+、Cs+, selectivity does not precipitate K in the system+
  4. It is 4. according to claim 2 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is described specific System is comprising Mg2+、Ca2+、Sr2+、Ba2+Alkaline-earth metal system, in the system selectivity precipitate C a2+
  5. It is 5. according to claim 2 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is described specific System is lanthanide rare system, the precipitation light rare earth La of selectivity in the system3+、Ce3+And Pr3+
  6. It is 6. according to claim 2 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is described specific System includes Cs+、Ba2+And Ln3+, the precipitate C s of selectivity in the system+
  7. It is 7. according to claim 2 to be based on ten yuan of applications of melon ring Supramolecular self assembly body, it is characterised in that:It is described specific System is IIIAMetal system, the precipitation Ga of selectivity in the system3+
  8. 8. it is a kind of according to claim any one of 1-7 based on ten yuan of application sides of the application of melon ring Supramolecular self assembly body Method, it is characterised in that:Be the self-assembly is used to trapping, precipitate metal ion, and sediment or crystalline substance by that will obtain Body obtains crystal in being dissolved in nitric acid, ten yuan of melon rings is reclaimed, while being discharged to metal ion.
  9. 9. according to claim 8 to be based on ten yuan of application processes of the application of melon ring Supramolecular self assembly body, its feature exists In:Comprise the following steps:
    A. by ten yuan of melon rings addition concentrated hydrochloric acids, concussion dissolves it, obtains A product;
    B. slaine is added to the water, is shaken, dissolve it, obtain B product;
    C. A product are mixed with B product, obtains white depositions, be filtrated to get white depositions;
    D. by white depositions obtained above addition salpeter solution, heating for dissolving stands obtain ten in 2~3 days in atmosphere First melon ring crystal.
  10. 10. according to claim 9 to be based on ten yuan of application processes of the application of melon ring Supramolecular self assembly body, its feature exists In:The white depositions continue to be dipped in original solution, and are placed on storage under the conditions of air at room temperature and can obtain from group for 1-3 days Dress body crystal;By in self-assembly crystal addition salpeter solution, heating for dissolving stands in atmosphere, obtains within 2~3 days ten yuan of melons Ring crystal.
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CN107446568A (en) * 2017-07-12 2017-12-08 贵州大学 A kind of fluorescent material
CN107486155A (en) * 2017-08-29 2017-12-19 贵州大学 One kind pollution acetonitrile treatment agent and its application process
CN107502339A (en) * 2017-07-19 2017-12-22 贵州大学 A kind of ratio fluorescent probe for identifying nilotinib and its preparation and recognition methods
CN109239035A (en) * 2018-09-18 2019-01-18 贵州大学 A kind of application of the supermolecule frame material based on ten yuan of melon rings in formaldehyde examination
CN112457526A (en) * 2020-12-07 2021-03-09 广东顺德同程新材料科技有限公司 Melon ring inclusion-based low-smoke antimony-free flame retardant and application thereof
CN112774736A (en) * 2020-12-19 2021-05-11 贵州大学 Q8/SC 6A supermolecule self-assembly body and its application

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Publication number Priority date Publication date Assignee Title
CN107446568A (en) * 2017-07-12 2017-12-08 贵州大学 A kind of fluorescent material
CN107502339A (en) * 2017-07-19 2017-12-22 贵州大学 A kind of ratio fluorescent probe for identifying nilotinib and its preparation and recognition methods
CN107502339B (en) * 2017-07-19 2019-10-11 贵州大学 A kind of ratio fluorescent probe identifying nilotinib and its preparation and recognition methods
CN107486155A (en) * 2017-08-29 2017-12-19 贵州大学 One kind pollution acetonitrile treatment agent and its application process
CN109239035A (en) * 2018-09-18 2019-01-18 贵州大学 A kind of application of the supermolecule frame material based on ten yuan of melon rings in formaldehyde examination
CN109239035B (en) * 2018-09-18 2021-04-13 贵州大学 Application of ten-element cucurbituril-based super-molecular framework material in formaldehyde detection
CN112457526A (en) * 2020-12-07 2021-03-09 广东顺德同程新材料科技有限公司 Melon ring inclusion-based low-smoke antimony-free flame retardant and application thereof
CN112774736A (en) * 2020-12-19 2021-05-11 贵州大学 Q8/SC 6A supermolecule self-assembly body and its application
CN112774736B (en) * 2020-12-19 2022-11-01 贵州大学 Q8/SC 6A supermolecule self-assembly and its application

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