CN106986993A - Structure of 5 nitroisophthalic acid cobalt polymer and preparation method thereof - Google Patents
Structure of 5 nitroisophthalic acid cobalt polymer and preparation method thereof Download PDFInfo
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- CN106986993A CN106986993A CN201710277302.7A CN201710277302A CN106986993A CN 106986993 A CN106986993 A CN 106986993A CN 201710277302 A CN201710277302 A CN 201710277302A CN 106986993 A CN106986993 A CN 106986993A
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- oxygen atom
- cobalt
- nitroisophthalic acid
- double
- pyridine radicals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
Abstract
The invention discloses a kind of structure of cobalt coordination polymer and preparation method thereof.The cobalt polymer belongs to anorthic system, and space group isFive cobalt ions, two 5 nitroisophthalic acid anion, two hydroxyls, the sulfate anion of two coordinations, two double (4 pyridine radicals) amine and two hydrones being coordinated are included in the complex basic structural unit.Co (II) ion is all hexa-coordinate.Co O bond distances exist Between, Co N bond distances exist
Description
Technical field
The invention belongs to complex preparing technical field, the structure of more particularly to a kind of cobalt coordination polymer and its preparation side
Method.
Background technology
Organic ligand bridging metal ion or cluster form one-dimensional to the three-dimensional structure infinitely stretched.Various structures have
Machine part can react to form configurations and the coordination polymer with special nature with many metal ions.Because carboxyl contains
There are two oxygen atoms that can be with metallic ion coordination, coordination mode is varied, so carboxylic acids organic ligand is normal as people
A kind of part.Aromatic carboxylic acids class part containing other groups has different coordination sides because of the difference of carboxyl the position of substitution
Formula, some substituents can also participate in coordination.Also had an impact to coordination using different metal salts, the anion of some metal salts
Also coordination can be participated in.Therefore, people have application value or potential using aromatic carboxylic acids class part and metallic ion coordination synthesis
The coordination polymer of value.
The content of the invention
It is an object of the invention to provide a kind of structure of cobalt coordination polymer and preparation method thereof.
The thinking of the present invention：It is that part and cobalt nitrate pass through water using 5- nitroisophthalic acids, double (4- pyridine radicals) amine
Hot method obtains cobalt coordination polymer.
The structure of 5- nitroisophthalic acid cobalt polymer is shown in accompanying drawing.The cobalt polymer belongs to anorthic system, and space group is P
ī.Comprising five cobalt ions in the complex basic structural unit, two 5- nitroisophthalic acid anion, two hydroxyls,
The hydrone of the sulfate anion of two coordinations, two double (4- pyridine radicals) amine and two coordinations.Co (II) ion is all six
Coordination.Carboxyl oxygen atom O2, the O2A of Co1 respectively in the 5- nitroisophthalic acid anion different from coming from two, two
Oxygen atom O7, O7A of the individual hydroxide ion different with two from oxygen atom O9B, O9C of different sulfate anions match somebody with somebody
Position.Carboxyl in the nitrogen-atoms N3B of Co2 and one double (4- pyridine radicals), two different 5- nitroisophthalic acid anion
Oxygen atom O2, O3B, oxygen atom O8, O11D and the oxygen of a hydroxide ion that two come from different sulfate anions
Atom O7A is coordinated.The nitrogen-atoms N1 of Co3 and one double (4- pyridine radicals), two different 5- nitroisophthalic acid anion
In carboxyl oxygen atom O1, O4C, the oxygen atom O9C of sulfate anion, the oxygen atom O12 of hydrone and one
The oxygen atom O7 coordinations of hydroxide ion.Co-O bond distance existsBetween, Co-N bond distance existsBetween.
The preparation method of the cobalt coordination polymer is：
(1) weigh 0.1~0.5 mM of 5- nitroisophthalic acid to be dissolved in 5~10 milliliters of distilled water, solution is moved
Enter in the sealing reactor that volume is 25 milliliters；
(2) 0.2~1 mM of potassium hydroxide is weighed, and is added in step (1)；
(3) double (4- pyridine radicals) amine solvents of 0.1~0.5 mM of weighing are in 2 milliliters of ethanol, and add in step (1)；
(4) weigh 0.2~1 mM of cobaltous sulfate to be dissolved in 5~10 milliliters of distilled water, solution is added to step (1)
In；
(5) reactor is sealed, constant temperature 3 days, are then slowly cooled to room temperature at 115 DEG C, filtered, obtain red bulk
Crystal, as cobalt coordination polymer.
The present invention has the advantages that technique is simple, with low cost, reproducible, has successfully synthesized cobalt coordination polymer,
Complex for synthesis transition metal provides certain foundation.
Brief description of the drawings
Fig. 1 is the molecular structure of the cobalt complex of the present invention.
Embodiment
Embodiment：
(1) weigh 0.2 mM of (0.0418g) 5- nitroisophthalic acid to be dissolved in 5 milliliters of distilled water, solution is moved
Enter in the sealing reactor that volume is 25 milliliters；
(2) 0.4 mM of potassium hydroxide (0.0224g) is weighed, and is added in step (1)；
(3) double (4- pyridine radicals) amine solvents for weighing 0.2 mM (0.0342g) add step in 2 milliliters of ethanol
(1) in；
(4) weigh 0.2 mM of cobaltous sulfate (0.0562g) to be dissolved in 5 milliliters of distilled water, solution is added to step
(1) in；
(5) reactor is sealed, constant temperature 3 days, are then slowly cooled to room temperature at 115 DEG C, filtered, obtain red bulk
Crystal, as cobalt coordination polymer.
The cobalt coordination polymer belongs to anorthic system, and space group is P ī.Five are included in the complex basic structural unit
Individual cobalt ions, two 5- nitroisophthalic acid anion, two hydroxyls, the sulfate anion of two coordinations, two are double
(4- pyridine radicals) amine and the hydrone of two coordinations.Co (II) ion is all hexa-coordinate.Co1 is respectively with coming from two differences
5- nitroisophthalic acid anion in carboxyl oxygen atom O2, O2A, two oxygen from different sulfate anions are former
Oxygen atom O7, O7A coordination of hydroxide ion O9B, O9C different with two.The nitrogen of Co2 and one double (4- pyridine radicals) is former
Carboxyl oxygen atom O2, O3B in sub- N3B, two different 5- nitroisophthalic acid anion, two come from different sulphur
Oxygen atom O8, O11D of acid radical anion and a hydroxide ion oxygen atom O7A coordinations.Co3 and double (4- pyridine
Base) nitrogen-atoms N1, carboxyl oxygen atom O1, O4C in two different 5- nitroisophthalic acid anion, a sulfate radical
The oxygen atom O9C of anion, the oxygen atom O12 and a hydroxide ion of a hydrone oxygen atom O7 coordinations.Co-O keys
Length existsBetween, Co-N bond distance existsBetween.
Claims (2)
1. a kind of structure of cobalt coordination polymer.The cobalt coordination polymer belongs to anorthic system, and space group is P ī.The complex
Comprising five cobalt ions in basic structural unit, two 5- nitroisophthalic acid anion, two hydroxyls, two coordinations
The hydrone of sulfate anion, two double (4- pyridine radicals) amine and two coordinations.Co (II) ion is all hexa-coordinate.Co1
Carboxyl oxygen atom O2, O2A in the 5- nitroisophthalic acid anion different from coming from two respectively, two from difference
Sulfate anion oxygen atom O9B, O9C hydroxide ion different with two oxygen atom O7, O7A coordination.Co2 and one
Carboxyl oxygen atom O2 in the nitrogen-atoms N3B of individual double (4- pyridine radicals), two different 5- nitroisophthalic acid anion,
O3B, oxygen atom O8, O11D and the oxygen atom O7A of a hydroxide ion that two come from different sulfate anions matches somebody with somebody
Position.Carboxyl oxygen in the nitrogen-atoms N1 of Co3 and one double (4- pyridine radicals), two different 5- nitroisophthalic acid anion
Atom O1, O4C, the oxygen atom O9C, the oxygen atom O12 and a hydroxide ion of a hydrone of a sulfate anion
Oxygen atom O7 coordination.Co-O bond distance existsBetween, Co-N bond distance existsIt
Between.
2. the preparation method of cobalt coordination polymer according to claim 1, it is concretely comprised the following steps：
(1) weigh 0.2 mM of 5- nitroisophthalic acid to be dissolved in 5 milliliters of distilled water, it is 25 millis that solution is moved into volume
In the sealing reactor risen；
(2) 0.4 mM of potassium hydroxide is weighed, and is added in step (1)；
(3) double (4- pyridine radicals) amine solvents of 0.2 mM of weighing are in 2 milliliters of ethanol, and add in step (1)；
(4) weigh 0.2 mM of cobaltous sulfate to be dissolved in 5 milliliters of distilled water, solution is added in step (1)；
(5) reactor is sealed, constant temperature 3 days, are then slowly cooled to room temperature at 115 DEG C, filtered, obtain red block brilliant
Body, as cobalt coordination polymer.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090131643A1 (en) * | 2006-04-14 | 2009-05-21 | Zheng Ni | Rapid metal organic framework molecule synthesis method |
| CN102250129A (en) * | 2010-05-19 | 2011-11-23 | 中国科学院大连化学物理研究所 | Porous coordination polymer material, and preparation and application thereof |
| CN105367609A (en) * | 2015-10-19 | 2016-03-02 | 桂林理工大学 | Trinuclear cobalt complex and preparation method thereof |
| CN106496285A (en) * | 2016-09-12 | 2017-03-15 | 桂林理工大学 | M-phthalic acid cobalt coordination polymer and preparation method thereof |
| CN106496581A (en) * | 2016-10-01 | 2017-03-15 | 桂林理工大学 | 5 nitroisophthalic acid, four core copper polymer and preparation method thereof |
-
2017
- 2017-04-25 CN CN201710277302.7A patent/CN106986993A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090131643A1 (en) * | 2006-04-14 | 2009-05-21 | Zheng Ni | Rapid metal organic framework molecule synthesis method |
| CN102250129A (en) * | 2010-05-19 | 2011-11-23 | 中国科学院大连化学物理研究所 | Porous coordination polymer material, and preparation and application thereof |
| CN105367609A (en) * | 2015-10-19 | 2016-03-02 | 桂林理工大学 | Trinuclear cobalt complex and preparation method thereof |
| CN106496285A (en) * | 2016-09-12 | 2017-03-15 | 桂林理工大学 | M-phthalic acid cobalt coordination polymer and preparation method thereof |
| CN106496581A (en) * | 2016-10-01 | 2017-03-15 | 桂林理工大学 | 5 nitroisophthalic acid, four core copper polymer and preparation method thereof |
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