CN104719286A - Cucurbituril n [CBn] and cucurbituril n derivative packed ethene or acetylene and release method - Google Patents
Cucurbituril n [CBn] and cucurbituril n derivative packed ethene or acetylene and release method Download PDFInfo
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- CN104719286A CN104719286A CN201310702904.4A CN201310702904A CN104719286A CN 104719286 A CN104719286 A CN 104719286A CN 201310702904 A CN201310702904 A CN 201310702904A CN 104719286 A CN104719286 A CN 104719286A
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- inclusion
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- urea
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Abstract
The present invention provides a cucurbituril n [CBn] and cucurbituril n derivative wetly-packed ethene or acetylene gas and a release method. First, cucurbituril n [CBn] and a cucurbituril n derivative are relatively poor in water solubility, and can only be dissolved in higher concentration acid to form a small molecule or ion assembly system aqueous solution, the cucurbituril n [CBn] and the cucurbituril n derivative can be dissolved in the aqueous solution by a certain method, and the high concentration can be ensured; second, the ethene or acetylene gas is wetly and drily packed to form a stable solid ethene or acetylene gas inclusion; and third, the ethene or acetylene gas is released by use of an appropriate physical and chemical method.
Description
[technical field]
The present invention relates to cucurbit [n] urea and derivative system inclusion ethene thereof or acetylene gas, form stable solid-state inclusion complex, and adopt the method for physics or chemistry that the acetylene gas in this inclusion complex can be made to discharge.
[background technology]
Cucurbit of the present invention [n] urea has a rigid cavity be small at both ends and big in the middle, the cavity of its cucurbit [n] urea has hydrophobicity, the molecule that yardstick is suitable can be held, port arranges symmetrical orderly ketonic oxygen, there is good hydrophily, and there is good binding site, the live part of bond wire ion or organic molecule can be carried out by ion-dipole interaction with the hydrogen bond action of carbonyl.It is strong and single-minded to the object Inclusion property of ad hoc structure.Cucurbit [n] urea is water insoluble and common are machine solvent, and be applicable to being dissolved in strongly acidic aqueous solution, and solvability increases with the increase of acidity, the dissolubility of different Cucurbiturils in acidic aqueous solution also has very large difference, and utilize its dissolubility difference in hydrochloric acid, carry out being continuously separated CB [the 5] ~ CB [10] that can obtain single degree of polymerization.After Cucurbituril and guest molecule interact, its solvability also can difference, but the change situation of different Cucurbituril has difference.Due to its rigid structure of Cucurbituril, show very high stability, not easily with common oxidant reaction, decomposition temperature is also all more than 450 DEG C.The cavity energy inclusion of Cucurbituril has bioactive material (as carbohydrate) and medicine within the scope of a certain size, and there is larger Formation constants, the inclusion complex formed is more stable under certain conditions, but can discharge inclusion complex by controlled condition.
[summary of the invention]
The present invention mainly adopts cucurbit [n] urea and derivative wet method thereof or dry method inclusion ethene or acetylene gas, and because cucurbit [n] urea structure rigidity is strong, port has abundant oxygen atom feature, and during the assembling of its molecule, selectivity is stronger.First wet method inclusion solves cucurbit [n] urea and is dissolved in the low problem of solvability in water, suitable method is adopted to make it dissolve in aqueous, ethene or acetylene gas are passed in solution and can obtain solid-state inclusion complex, formed this inclusion complex be due to molecule between space structure electronic structure achievement and formed Supramolecular Assembling system, combination between molecule is formed by intermolecular interaction, there is certain heat endurance, adopt the method for Desirable physical or chemistry that it can be made to be discharged in use.
[embodiment]
Embodiment 1: cucurbit [n] urea is dissolved in inclusion acetylene gas in sodium-chloride water solution
Take cucurbit [n] urea 0.5 gram, 0.4 gram, sodium chloride, the deionized water adding 20 milliliters makes it dissolve, and passes into acetylene gas and form stable white precipitate inclusion complex under the condition of stirring at normal temperature, and being isolated to solid at room temperature air-dry had both been product.
Embodiment 2: cucurbit [n] urea is dissolved in inclusion acetylene gas in potassium chloride solution
Take cucurbit [n] urea 0.5 gram, 0.4 gram, potassium chloride, the deionized water adding 20 milliliters makes it dissolve, and passes into acetylene gas and form stable white precipitate inclusion complex under the condition of stirring at normal temperature, and being isolated to solid at room temperature air-dry had both been product.
Embodiment 3: cucurbit [n] urea solid inclusion ethene and acetylene
Take cucurbit [n] urea 2.0 grams and put into withstand voltage steel cylinder, pass into the acetylene gas of certain pressure, it had both been product that placement makes it absorb inclusion.
Embodiment 4: the release of the inclusion complex of cucurbit [n] inclusion acetylene gas
Method one: physical method, due between inclusion complex molecule due to intermolecular interaction formed assembly system, so the method destroying this assembling generally adopts the physical method of heating just can drive out ethene or acetylene gas.
Method two: chemical method, because CB6 has Inclusion property, selection can easily and the molecule of its inclusion or ion make it dissolve to reach the object of driveing ethene or acetylene, concrete method adds the structural property that acid or alkali change CBn port in aqueous, can realize the release of gas.
Claims (5)
1. the present invention is that macrocycle molecule inclusion ethene or acetylene gas form more stable solid-state inclusion complex with cucurbit [n] urea and derivative thereof.
2. claim 1 cucurbit [n] urea and derivative wet method inclusion ethene thereof or acetylene gas inclusion.First, need to select suitable preparation that cucurbit [n] urea is dissolved in aqueous, and ensure that the concentration of cucurbit in solution [n] urea is enough, provide possibility for it is assembled into solid-state assembly system.
3. cucurbit [n] the urea dry method inclusion ethene in claim 1 or acetylene gas inclusion.
4. cucurbit [n] urea in claim 1 comprises n=5,6,7,8,10, the derivative of modification corresponding to it.
5. the release of the inclusion gas in claim 1, adopt the method for physical heating or add the method that can form more stable inclusion complex with cucurbit [6] urea and cemented out, or add the preparation that can change cucurbit [6] urea port organization character, destroy the intermolecular interaction of original inclusion complex, make it discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702904.4A CN104719286A (en) | 2013-12-19 | 2013-12-19 | Cucurbituril n [CBn] and cucurbituril n derivative packed ethene or acetylene and release method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310702904.4A CN104719286A (en) | 2013-12-19 | 2013-12-19 | Cucurbituril n [CBn] and cucurbituril n derivative packed ethene or acetylene and release method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104719286A true CN104719286A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310702904.4A Pending CN104719286A (en) | 2013-12-19 | 2013-12-19 | Cucurbituril n [CBn] and cucurbituril n derivative packed ethene or acetylene and release method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371180A (en) * | 2018-03-19 | 2018-08-07 | 华南理工大学 | A kind of embedded object and embedding method of the ethylene gas with sustained release performance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030140787A1 (en) * | 1999-05-07 | 2003-07-31 | Day Anthony Ivan | Cucurbiturils and method for binding gases and volatiles using cucurbiturils |
| WO2005003136A1 (en) * | 2003-07-05 | 2005-01-13 | Postech Foundation | Rotaxane compound, rotaxane-bonded solid substrate, and biochip using the same |
| CN101462388A (en) * | 2009-01-13 | 2009-06-24 | 四川大学 | Compound film enhanced by inclusion complex of ring molecule and polymer and preparation method thereof |
| CN102273504A (en) * | 2011-04-21 | 2011-12-14 | 华中农业大学 | Preparation method for inclusion complex of 1-methylcyclopropene and its derivatives, and application thereof |
-
2013
- 2013-12-19 CN CN201310702904.4A patent/CN104719286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030140787A1 (en) * | 1999-05-07 | 2003-07-31 | Day Anthony Ivan | Cucurbiturils and method for binding gases and volatiles using cucurbiturils |
| WO2005003136A1 (en) * | 2003-07-05 | 2005-01-13 | Postech Foundation | Rotaxane compound, rotaxane-bonded solid substrate, and biochip using the same |
| CN101462388A (en) * | 2009-01-13 | 2009-06-24 | 四川大学 | Compound film enhanced by inclusion complex of ring molecule and polymer and preparation method thereof |
| CN102273504A (en) * | 2011-04-21 | 2011-12-14 | 华中农业大学 | Preparation method for inclusion complex of 1-methylcyclopropene and its derivatives, and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371180A (en) * | 2018-03-19 | 2018-08-07 | 华南理工大学 | A kind of embedded object and embedding method of the ethylene gas with sustained release performance |
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Application publication date: 20150624 |