CN110484969B - Platinum-containing inorganic crystalline borate and preparation method thereof - Google Patents
Platinum-containing inorganic crystalline borate and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a platinum-containing inorganic crystalline borate and a preparation method thereof, wherein the chemical formula of the platinum-containing inorganic crystalline borate is Mg3Pt(BO3)2O2Molecular weight of 417.64, belonging to monoclinic system and space groupC2/mUnit cell parameter ofa＝16.8073(8)Å，b＝3.10610(10)Å，c＝5.2107(2)Å；α=90°，β=90.546(4)°，γ=90°；V＝272.013(19)Å3And Z is 2. Compared with the prior art, the invention utilizes a high-temperature fluxing agent preparation method, introduces platinum into borate to obtain a platinum-containing borate compound with a novel structure, which is a platinum-containing borate synthesized by a first solid phase method, and the crystal can be used for providing reference and structure prediction for the design and synthesis of more platinum-containing borates; in addition, the platinum-gold-based composite material contains + 4-valent platinum noble metal, so that the platinum-gold-based composite material has certain application in the fields of research and development of anti-cancer drugs, catalysts and the like.
Description
Technical Field
The invention relates to the technical field of borate, in particular to inorganic crystalline borate containing platinum and a preparation method thereof.
Background
In 1965, the platinum coordination compound was first found to have antibacterial activity, and in 1969, cis-diamminedichloroplatinum was found to have anticancer activity on experimental tumors. Since then, the medical value of platinum metal-containing compounds has been of great concern. Among platinum metal drugs, the most medically significant one should first deduce "anticancer star" -cisplatin, i.e. cis-diamminedichloroplatinum [ Pt (NH)3)2Cl2]Currently, researchers have made a lot of research on platinum-containing gold compounds in order to improve their anticancer activity. Thereby leading the generation of the second generation organic platinum anti-cancer drugs with high efficiency, low toxicity, high water solubility and good stability. Of these, diammine (1, 1-cyclobutane dicarboxylic acid) platinum (III) and platinum (dicarboxy-diammine-diisopropylamine) are the most representative and have been studied clinically. In addition, contain platinumThe catalyst has irreplaceable effect in the field of environmental protection, and particularly has unusual performance in the aspect of automobile exhaust treatment as an industrial catalyst.
Borate has been receiving much attention from scientists because of its abundant structural chemistry and excellent physicochemical properties. If platinum metal is incorporated into the borate system, we would expect to design a wide variety of platinum-containing borate compounds using the molecular structural diversity of the borate. Then a series of materials with stable property and excellent performance can be screened from the abundant structure, and the industrial applicability of the materials is explored.
Disclosure of Invention
The invention aims to provide an inorganic crystalline borate containing platinum and a preparation method thereof.
One of the objects of the present invention is to provide an inorganic crystalline borate containing platinum, having the chemical formula Mg3Pt(BO3)2O2Molecular weight of 417.64, belonging to monoclinic system and space groupC2/mUnit cell parameter ofa＝16.8073(8)Å，b＝3.10610(10)Å，c＝5.2107(2)Å；α=90°，β=90.546(4)°，γ=90°；V＝272.013(19)Å3，Z＝2。
The platinum-containing gold-containing inorganic crystalline borate as described above, wherein it is preferable that the three-dimensional spatial structure of the platinum-containing gold-containing inorganic crystalline borate is based on isolated BO3Planar triangular, PtO6And MgO6Octahedra linked to each other, PtO6The octahedrons are linked with each other along the same side, and a one-dimensional chain is formed along the direction of the b axis; BO3Planar triangle common vertex and PtO6Octahedron are linked with each other and positioned at the upper side and the lower side of the Pt-O one-dimensional chain to form an anion one-dimensional chain [ Pt (BO)3)2O2]6-；MgO6The octahedrons are linked to each other by a common edge or a common vertex into a two-dimensional layer parallel to the (-101) crystal plane; one-dimensional chain [ Pt (BO)3)2O2]6-Further linked with each other through common vertex and Mg-O two-dimensional layer to form Mg with three-dimensional skeleton structure3Pt(BO3)2O2。
The invention also aims to provide a preparation method of the inorganic crystalline borate containing platinum, which adopts a high-temperature solid-phase fluxing agent method to prepare.
The production method as described above, wherein it is preferable that the raw material Li is weighed in a stoichiometric ratio2CO3、MgO、H3BO3And PtO2Placing the mixture in a mortar, uniformly mixing, grinding and mixing, reacting at a set temperature for a set time, and then cooling to 650 ℃ at a cooling rate of 2 ℃/h; then reducing the temperature to 200 ℃ at the cooling rate of 5 ℃/h; and closing the reaction furnace to obtain the platinum-containing inorganic crystalline borate.
The production process as described above, wherein, preferably, Li is first prepared2CO3And H3BO3After mixing uniformly, further MgO and PtO2Grinding in mortar and mixing.
The production method as described above, wherein it is preferable to weigh 0.4428g of Li2CO30.1616g of MgO,0.9215g of H3BO3And 0.2292g of PtO2。
In the above production method, it is preferable that the raw materials are ground and mixed uniformly for about five minutes. The reaction was carried out in a box-type resistance furnace at 1000 ℃ for two days.
Another object of the present invention is to provide a use of the platinum-containing inorganic crystalline borate for research and development of anticancer drugs and in the field of catalysts.
Compared with the prior art, the invention utilizes the preparation method of the high-temperature fluxing agent to introduce platinum into borate to obtain the platinum-containing borate compound with high thermal stability, which is the platinum-containing borate synthesized by the first solid phase method, and the crystal can be used for providing reference and structure prediction for the design and synthesis of more platinum-containing borates; in addition, the platinum-gold-based composite material contains + 4-valent platinum noble metal, so that the platinum-gold-based composite material has certain potential application in the fields of research and development of anti-cancer drugs, catalysts and the like.
Drawings
FIG. 1 shows a novel platinum-containing compound Mg of the present invention3Pt(BO3)2O2Molecular structure along the b-axis and c-axis.
FIG. 2 is Mg of the present invention3Pt(BO3)2O2Coordination environment of central atom PtO6，BO3And MgO6。
FIG. 3 is Mg of the present invention3Pt(BO3)2O2Electron spectrum and SEM morphology of (a).
FIG. 4 is Mg of the present invention3Pt(BO3)2O2Ultraviolet diffuse reflectance graph and theoretical energy band structure graph.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The embodiment of the invention provides an inorganic crystalline borate containing platinum, and the chemical formula is Mg3Pt(BO3)2O2Molecular weight of 417.64, belonging to monoclinic system and space groupC2/mUnit cell parameter ofa＝16.8073(8)Å，b＝3.10610(10)Å，c＝5.2107(2)Å；α=90°，β=90.546(4)°，γ=90°；V＝272.013(19)Å3And Z is 2. (wherein,a-candα-γfor its unit cell parameters, V is the unit cell volume and Z is the number of molecules per unit cell).
Referring to FIG. 1, it can be seen that it is a three-dimensional skeletal molecular structure in which MgO is present6The octahedrons are linked to each other by a common edge or a common vertex into a two-dimensional layer parallel to the (-101) crystal plane; one-dimensional boric acid platinum chain [ Pt (BO)3)2O2]6-Further interlinking the Mg-O two-dimensional layers by a common vertex to form Mg3Pt(BO3)2O2A three-dimensional skeleton structure in space. Because it is synthesized by high-temperature solid-phase method, and the atoms share oxygen atoms with each other and are chemically bonded (mostly covalent bonded)Form) are closely linked, and therefore, it can be concluded that they have high stability.
The three-dimensional structure of the platinum-containing inorganic crystalline borate is based on isolated BO3Planar triangular, PtO6And MgO6Octahedra linked to each other, PtO6The octahedrons are linked with each other along the same side, and a one-dimensional chain is formed along the direction of the b axis; BO3Planar triangle common vertex and PtO6Octahedron are linked with each other and positioned at the upper side and the lower side of the Pt-O one-dimensional chain to form an anion one-dimensional chain [ Pt (BO)3)2O2]6-；MgO6The octahedrons are linked to each other by a common edge or a common vertex into a two-dimensional layer parallel to the (-101) crystal plane; one-dimensional chain [ Pt (BO)3)2O2]6-Further linked with each other through common vertex and Mg-O two-dimensional layer to form Mg with three-dimensional skeleton structure3Pt(BO3)2O2. The novel three-dimensional framework enriches the structural topology of inorganic crystalline materials, and the relatively complex bonding mode also theoretically enhances the physical, chemical and thermodynamic stability of the inorganic crystalline materials.
The preparation method of the platinum-containing inorganic crystalline borate adopts a high-temperature solid-phase fluxing agent method to prepare Li2CO3(0.4428 g, 6.0 mmol), MgO (0.1616 g, 4.0 mmol), H3BO3(0.9215 g, 15.0 mmol) and PtO2(0.2292 g, 1.0 mmol) was placed in a mortar and ground and mixed well for about five minutes. Reacting for two days at 1000 ℃, and then reducing the temperature to 650 ℃ at the speed of 2 ℃/h; then reducing the temperature to 200 ℃ at the cooling rate of 5 ℃/h; and closing the reaction furnace to obtain polycrystal with uneven grain size distribution. Wherein H3BO3-Li2CO3As a mixed flux for high temperature solid phase reactions, MgO, H3BO3And PtO2As a reaction raw material.
Compared with the prior art, the invention utilizes the preparation method of the high-temperature fluxing agent to introduce platinum into borate to obtain the platinum-containing borate compound with high thermal stability, which is the platinum-containing borate synthesized by the first solid phase method, and the crystal can be used for providing reference and structure prediction for the design and synthesis of more platinum-containing borates; in addition, the platinum-gold-based composite material contains + 4-valent platinum noble metal, so that the platinum-gold-based composite material has certain potential application in the fields of research and development of anti-cancer drugs, catalysts and the like.
The construction and features of the invention have been illustrated in detail in the accompanying drawings, which are incorporated in and constitute a part of this specification, the invention should not be limited to the details of construction and the embodiments illustrated, but are to be construed broadly within the spirit and scope of the invention as defined in the appended claims, and all changes that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (7)
1. An inorganic crystalline borate containing platinum is characterized in that the chemical formula is Mg3Pt(BO3)2O2Molecular weight of 417.64, belonging to monoclinic system and space groupC2/mUnit cell parameter ofa＝16.8073(8)Å，b＝3.10610(10)Å，c＝5.2107(2)Å；α=90°，β=90.546(4)°，γ=90°；V＝272.013(19)Å3，Z＝2。
2. The platinum-containing inorganic crystalline borate according to claim 1, characterized in that: the three-dimensional structure of the platinum-containing inorganic crystalline borate is based on isolated BO3Planar triangular, PtO6And MgO6Octahedra linked to each other, PtO6The octahedrons are linked with each other along the same side, and a one-dimensional chain is formed along the direction of the b axis; BO3Planar triangle common vertex and PtO6Octahedron are linked with each other and positioned at the upper side and the lower side of the Pt-O one-dimensional chain to form an anion one-dimensional chain [ Pt (BO)3)2O2]6-；MgO6The octahedrons are linked to each other by a common edge or a common vertex into a two-dimensional layer parallel to the (-101) crystal plane; one-dimensional chain [ Pt (BO)3)2O2]6-Further linked with each other through common vertex and Mg-O two-dimensional layer to form Mg with three-dimensional skeleton structure3Pt(BO3)2O2。
3. The method of preparing an inorganic crystalline borate containing platinum as claimed in claim 1, wherein the method is a high temperature solid phase flux method.
4. The production method according to claim 3, wherein the raw material Li is weighed in a stoichiometric ratio2CO3、MgO、H3BO3And PtO2Placing the mixture in a mortar, uniformly mixing, grinding and mixing, reacting at a set temperature for a set time, and then cooling to 650 ℃ at a cooling rate of 2 ℃/h; then reducing the temperature to 200 ℃ at the cooling rate of 5 ℃/h; and closing the reaction furnace to obtain the platinum-containing inorganic crystalline borate.
5. The process according to claim 4, wherein Li is first added2CO3And H3BO3After mixing uniformly, further MgO and PtO2Grinding in mortar and mixing.
6. The method of claim 5, wherein 0.4428g of Li are weighed2CO30.1616g of MgO,0.9215g of H3BO3And 0.2292g of PtO2。
7. The method of claim 5, wherein the raw materials are ground and mixed uniformly for five minutes, and reacted in a box-type resistance furnace at 1000 ℃ for two days.
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| CN102337591A (en) * | 2011-11-14 | 2012-02-01 | 西北大学 | Ytterbium-doped potassium triyttrium borate laser crystal, and growing method and application thereof |
| CN107245757A (en) * | 2017-05-26 | 2017-10-13 | 山东省科学院新材料研究所 | A kind of borate Raman crystal and its production and use |
| CN107640754A (en) * | 2017-09-28 | 2018-01-30 | 河南理工大学 | Novel light-emitting crystalline material Na4TaP3O12And preparation method thereof performance and purposes |
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| CN102337591A (en) * | 2011-11-14 | 2012-02-01 | 西北大学 | Ytterbium-doped potassium triyttrium borate laser crystal, and growing method and application thereof |
| CN107245757A (en) * | 2017-05-26 | 2017-10-13 | 山东省科学院新材料研究所 | A kind of borate Raman crystal and its production and use |
| CN107640754A (en) * | 2017-09-28 | 2018-01-30 | 河南理工大学 | Novel light-emitting crystalline material Na4TaP3O12And preparation method thereof performance and purposes |
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