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Metal complex

一种金属络合物、聚合物的技术，应用在钴有机化合物、有机化合物/氢化物/配位配合物催化剂、化学/物理过程等方向，能够解决不稳定化、催化剂不稳定、活性降低等问题，达到稳定性优异的效果

Inactive Publication Date: 2010-01-20
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the metal complex disclosed in Org. Biomol. Chem., 2005, 32126 is used as a catalyst, the catalyst becomes unstable when heated, and the activity may decrease.
In addition, this catalyst may be destabilized in the presence of strong acid, so it is a catalyst whose application range is limited.
As mentioned above, the previously published metal complexes may decompose depending on the reaction conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] [Example 1] (synthesis of metal complex (A))

[0080] The metal complex (A) was synthesized by mixing and reacting 2-methoxyethanol containing a ligand and cobalt acetate tetrahydrate according to the following reaction formula. The following ligands used as raw materials of the complex were synthesized based on Tetrahedron., 1999, 55, 8377 .

[0081]

[0082] First, under a nitrogen atmosphere, add 200 ml of a solution of 2-methoxyethanol containing 1.388 g of ligand and 1.245 g of cobalt acetate tetrahydrate into a 500 ml pear-shaped flask, and stir for 2 hours while heating to 60°C. , resulting in a dark brown solid. The solid was filtered, washed with 20 ml of 2-methoxyethanol, and dried to obtain a metal complex (A) (yield: 1.532 g). The infrared (IR) absorption spectrum of the metal complex (A) obtained is shown in figure 1 middle.

[0083] Elemental analysis value (%): Calculated value (as C 49 h 50 co 2 N 4 o 8 ); C, 62.56; H, 5.36; N, 5.96; Co, 12.5...

Embodiment 2

[0084] [Example 2] (synthesis of metal complex (B))

[0085] The metal complex (B) was synthesized by mixing and reacting ethanol containing a ligand and cobalt acetate tetrahydrate according to the following reaction formula. The following ligands used as raw materials of the complex were synthesized based on Tetrahedron., 1999, 55, 8377 .

[0086]

[0087] First, under a nitrogen atmosphere, a 50 ml ethanol solution containing 0.315 g of the ligand and 0.124 g of cobalt acetate tetrahydrate was added to a 100 ml pear-shaped flask, and stirred at 80° C. for 1 hour. The produced dark brown precipitate was filtered, washed with ethanol, and vacuum-dried to obtain a metal complex (B) (yield: 0.270 g).

[0088] Elemental analysis value (%): Calculated value (as C 42 h 40 CoN 4 o 4 ); C, 69.70; H, 5.57; N, 7.74; Found: C, 70.01; H, 5.80; N, 7.56. ESI-MS[M·] + : 687.1

Embodiment 3

[0089] [Example 3] (synthesis of metal complex (C))

[0090] The metal complex (C) was synthesized by mixing and reacting an ethanol solution containing a ligand and a methanol solution containing iron acetate according to the following reaction formula. The following ligands used as raw materials of the complex were synthesized based on Tetrahedron., 1999, 55, 8377 .

[0091]

[0092] First, under a nitrogen atmosphere, add 10 ml of ethanol solution containing 0.126 g of ligand and 5 ml of methanol solution containing 0.078 g of ferric acetate into a 50 ml pear-shaped flask, and stir for 3 hours while heating at 80°C. A dark brown solid was obtained. The solid was filtered, washed with methanol, and dried to obtain a metal complex (C) (yield: 0.075 g). Elemental analysis value (%): Calculated value (as C 48 h 50 Fe 2 N 4 o 8 ); C, 62.49; H, 5.46; N, 6.07. Found: C, 59.53; H, 5.29; N, 5.70.

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Abstract

Disclosed is a metal complex represented by the following formula (1). (1) (In the formula, R<1>-R<6> independently represent a hydrogen atom or a substituent; Y<1> and Y<2> independently represent one of the following groups: (wherein Ra represents a hydrogen atom or a hydrocarbon group having 1-4 carbon atoms); P<1> and P<2> each represents an atomic group necessary for forming a heterocyclic ring respectively together with Y<1> and two carbon atoms adjacent to Y<1>, or Y<2> and two carbon atoms adjacent to Y<2>; M represents a transition metal element or a typical metal element; m represents 1 or 2; X represents a counter ion or a neutral molecule; n represents the number of X contained in the complex, which is namely an integer not less than 0; and Q<1> and Q<2> each represents an aromatic heterocyclic group).

Description

technical field [0001] This invention relates to metal complexes, and more particularly to metal complexes useful as catalysts. Background technique [0002] Metal complexes function as catalysts in redox reactions involving electron transfer, such as oxygen addition reactions, oxidative coupling reactions, dehydrogenation reactions, hydrogenation reactions, oxide decomposition reactions, and electrode reactions, and are used in organic compounds or in the manufacture of polymer compounds. In addition, recently, it has been used as a phosphorescent light-emitting complex of an organic EL material. In addition, it is used in various applications such as additives, modifiers, materials for batteries, and sensors. [0003] In particular, Schiff-type base metal complexes are known to have high activity and high selectivity as catalysts for redox reactions. For example, in Org.Biomol.Chem., 2005, 3, 2126, an optically active Schiff-type base complex is used in the catalyst to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/30B01J31/22C07D471/04C08F4/40
CPCC07D471/04C08F110/02B01J2531/72B01J2531/16B01J2531/0252B01J31/1815C08F110/06C07D409/14B01J2531/84C07D213/30B01J31/2243B01J31/183B01J31/22C07F15/06C08F4/42C08G61/12
Inventor 松永忠史古志野伸能东村秀之
Owner SUMITOMO CHEM CO LTD
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