1. On the basis of hydrothermal synthesis, Qian Yitai and Xie Yi of China University of Science and Technology designed and realized new inorganic chemical reactions in organic systems, and prepared a series of non-oxide nanomaterials at relatively low temperature. The principle of solvothermal synthesis is similar to that of hydrothermal synthesis. Organic solvent replaces water to realize chemical reaction in closed system. Their work of preparing nano-GaN by the reaction of GaCl3 and Li3N in benzene at 280℃ was published in the journal Science, and the reviewer commented that "the article reported two exciting research results: crystalline GaN was prepared by heating benzene at very low temperature; A metastable cubic rock salt phase was observed only under ultra-high pressure. ..... "This article has been cited 60 times by Science and other publications. InAs were prepared by solvothermal reduction in toluene. The article was published in J.AM.Chem.SOC: In the presence of KBH4, As reacted with low toxic InCl3 to prepare nano InAs. The article was published in Chem. Mater At 700℃, CCl4 _ 4 reacts with metal Na in a similar Wurtz way to produce diamond. Shortly after this work was published in Science magazine, it was appraised as "turning the stone into gold" by American Chemical and Engineering News. One-dimensional CdE(E=S, Se, Te) was synthesized by solvothermal method, and the article was published in Chem. Mater The work of preparing one-dimensional SiC nanorods by reducing CCl4 and SiCl4 with metal Na at 400℃ was published in Lite Applied Physics, which was considered by critics as "a novel and very interesting synthesis method, ... which will promote further work in this field". Solvothermal synthesis of polymetallic chalcogenide nanomaterials: for example, articles by AgMS2 and CuMS2(M=Ga, In) were published in Chem. Commum。 And Inorg. Chemistry. They are; The solvent preparation of some chalcogenide nanomaterials was successfully cooled to room temperature, and the work of one-dimensional selenide was published in J.AM. Chemistry. Socialists and mater teachers. Preparation of Indefinite Compounds and Identification of Metastable Phase: Solvothermal Synthesis of Indefinite Compounds such as Co9S8 was published in Inorg. Chemistry. The identification of metastable phase of rock salt type GaN was published in Lite Applied Physics.
2. Feng Shouhua and Xu Ruren of Jilin University successfully synthesized inorganic arsenic with spiral structure from simple reaction raw materials by hydrothermal synthesis technology. Good at loving spring grazing? /FONT & gt； M(4，4 '-bipy)2(VO2)2(hpo 4)4(M = Co； Ni). In these two compounds, PO4 tetrahedron and VO4N triangular bipyramid are alternately arranged with oxygen atoms, forming a new type of V/P/O inorganic spiral chain. There are left-handed and right-handed V/P/O spiral chains in the structure. These left-handed and right-handed spiral chains alternate strictly and are connected by M (4 4,4'-biped) 2 structural units to form an open three-dimensional structure. The formation of inorganic spiral chains is attributed to the pulling force caused by the coordination of two bipyridine rigid molecules on the structural unit M (4,4'-bipy) 2 with vanadium atoms on two adjacent spiral chains. The research results were published in angew.chem.int.ed.2000, vol.39,No. 13, 2325-2327.
In view of the systematic and innovative research work in the frontier field of inorganic hydrothermal synthesis in the world, Professor Feng Shouhua and Academician Xu Ruren from the State Key Laboratory of Inorganic Synthesis and Preparation Chemistry of Jilin University were invited to write a summary paper for the 20001annual chemical research account of the American Chemical Society. The theme of the review is "New Materials in Hydrothermal Synthesis" (ACC. Chemistry. Resolution 34(3), p 239? /FONT & gt； 247,200 1)。 In this paper, the research results of hydrothermal synthesis chemistry of new materials are systematically summarized from the following seven aspects: microporous crystals; Ionic conductor; Complex oxide and complex fluoride; Low-dimensional aluminum phosphate; Inorganic/organic mixed materials; Special aggregate; Material, life, environment and social problems.
3. Xiong Rengen and Youxiao Zeng of Nanjing University designed and synthesized inorganic arsenic compounds with chiral and catalytic functions for the assembly and chiral resolution of optically active zeolites. Hey? Mu Mu? I'm sorry, Mr. Yue, I'm sorry. ┪? /FONT & gt； (quinine), as a ligand, self-assembled with metal ions to form three-dimensional porous zeolite with optical resolution (or selectively including S configuration) of racemic 2- butanol and 3- methyl -2- butanol, and the resolution rate was over 98%. When designing this zeolite successfully, we mainly consider the following factors: the ligand of negative monovalent anion (excluding the possibility of external anion occupying the cavity); Ligands have a large number of organic moieties to enhance hydrophobicity; At the same time, there are hydrophilic groups, and there are N, OH and other groups in a ligand, so the ligand is amphoteric; A plurality of chiral centers (4). This is the first optically active zeolite-like substance that can be separated at present. This work is considered to be very important and meaningful. It was published in Angel magazine. Chemistry. The contents were edited by …, (200 1, 40, 4422-4425) and selected as hot paper.
4. Hong Maochun and Wu et al. of Fujian Institute of Structure have published 30 papers on nano-materials and inorganic polymers in international high-level journals such as angew.chem.int.ed, j.am.chem.soc. chem.eur.j., chem.comm., INORG.chem, which has attracted extensive attention from colleagues at home and abroad.
Considering the synergistic effect and structural regulation of organic bridging ligands and metal ions in the synthesis, structure and properties of nano-sized metal molecular cages, they designed and synthesized a tridentate bridging ligand tpst containing organic sulfur and nitrogen. The pyridine ring is connected with the central separator through flexible thioether. A cubic organometallic cage [Ni6 (tpst) 8cl12] with Oh symmetry was successfully constructed by the self-assembly reaction of TPST ligand with divalent nickel, palladium or platinum ions, and the volume in the cage exceeded 1000? 3. It can accommodate various ions and solvent molecules at the same time. The cage is stable at 100℃ and has 12 large variable windows, which allow small molecules to enter and exit the cage. This is the largest single crystal structure of metal-organic cage (j.am. Chemistry. Socialist 2000,122,4819-4820).
A new type of metal with big holes was taken out. 0? Study on synthesis, structure and properties of a new metal-organic macroporous zeolite. The research work in this field mainly focuses on the synthesis of suitable organic ligands and the design and synthesis of composite polymers with suitable pore size and shape. Recently, they gradually assembled the tpst ligand with monovalent metal ions, and made a one-dimensional polymer [Ag7(tpst)4(ClO4)2(NO3)5]n with nanoscale tubes, which can accommodate both ions and small molecules. This is the only one-dimensional polymer containing metal-organic nanotubes.
They also successfully constructed a novel molecular sieve-like structure [{Zn4 (OH) 2 (BDC) 3} 4 (DMSO) 2H2O] n with nano-scale pores, in which the pore size is close to one nanometer. The metal of the skeleton may be a catalytically active metal cluster. One-dimensional, two-dimensional and three-dimensional macroporous polymers containing rare earth metals and transition metals were prepared by the reaction of multidentate carboxylic acid macroligands with rare earth metals and transition metal ions, [gd2ag2 (pydc) 4 (H2O) 4] n [{gd2cu3 (pydc) 6 (H2O)12} .4h2o] n, [{gd4cu3 (pydc) 6}.
Synthesis and structure of metal nanowires and metal-organic nanosheets. Some metal nanowires, metal-nonmetal nanowires and metal-organic nanosheets were designed and synthesized. Their self-assembly law, spatial structure, electronic structure and physical and chemical properties were studied by structural chemistry, and the relationship between spatial structure and properties was explored.
5. Peking University Takamatsu Research Group has made outstanding achievements in the research of magnetomolecular materials. Special magnetic relaxation phenomenon depending on external magnetic field. K3 [m (CN) 6] (m = Feiii, CoIII), BPYM (2 2,2'-bipyrimidine) and Nd(NO3)3 slowly diffused in aqueous solution at the molar ratio of 1: 1, and the first cyano-bridged 4f-3 was synthesized. By comparing the magnetism of two compounds with the same structure, it is confirmed that there is a weak ferromagnetic interaction between NdIII and FeiII. Although no long-range magnetic order was observed above 2K, and the alternating magnetic susceptibility varying with temperature showed normal paramagnetic behavior under zero external field, the alternating magnetic susceptibility showed slow magnetic relaxation in the presence of external magnetic field (2kOe), which was similar to superparamagnetic magnets and spinning glass. The geometric spin delay of the system is preliminarily explained. Chemistry. -int。 Edited by …, 40 (2), 434-437, 200 1).
Supramolecular assembly with metal clusters as structural units. The rare earth salt dysprosium (ClO _ 4) _ 3 was mixed with the aqueous solution of aspartic acid, and the pH value of the solution was adjusted to about 6.5, so that a three-dimensional coordination polymer with an open skeleton structure was synthesized, and its pore size reached11.78a. As a result of using aspartic acid instead of monocarboxylic acid as dicarboxylic acid, the amino acid rare earth complex formed at physiological pH changed from a discrete tetracyclic cubic alkane structure (. Chemistry. -int。 Edit. , 39 (20), 3644-6, 2000).
Cyanide bridge three-dimensional ferromagnet. A cyano-bridged three-dimensional coordination polymer with diamond-like structure was synthesized by the reaction of 4-D metal ion Ru(III) stabilized dicyandiamide complex [ruii(acac)2(CN)2]- with 3-D metal ion Mn(II). The magnetic study shows that the Ru-Mn interaction is ferromagnetic, showing long-range ferromagnetic order below 3.6 K ... This is the first case of molecular ferromagnet containing Ru(III).
A novel three-dimensional coordination polymer [Cu(EtOH)2][Cu(en)]2[Cr(CN)6]2 was obtained by slowly diffusing the aqueous solution of Cu(en)(H2O)2SO4 into the aqueous solution of K3[Cr(CN)6] in ethanol. Magnetic research shows that the interaction between chromium and copper is ferromagnetic. This is the first Cr-Cu three-dimensional molecular magnet (Angew. Chemistry. -int。 Edit. , 40 ( 16), 303 1-3, 200 1; J. Am。 Chemistry. Socialists,123,11809-10,2001).
6. Tsinghua University Li Yadong Research Group has made outstanding progress in the preparation and assembly of new one-dimensional nanostructures. Li Yadong's research group first discovered a new single-crystal multi-walled metal nanotube with quasi-layered structure, which was formed by bismuth, and the related research results were published in the Journal of American Chemical Society (J. AM. Chemistry. SOC. 123 (40)，9904 ~ 9905，200 1)。 This is the world's first single crystal nanotube made of metal. The discovery of bismuth nanotubes provides a new object and subject for the formation mechanism and application research of inorganic nanotubes.
They also designed and synthesized tungsten single crystal nanowires and WS2 nanotubes with high quality by using the synthesized organic-inorganic layered structures as precursors. With the help of small-angle X-ray diffraction and high-resolution electron microscope microstructure analysis, the layered curling mechanism from layered precursors to nanotubes was studied in detail, which provided a new method and idea for the synthesis of one-dimensional nanowires and nanotubes. The work in this field has been published in applied chemistry in Germany (angew.chem.int.ed.4 1 (2), 333 ~ 335, 2002) and the journal of American chemical society (j.am.chem.soc. 124 (7),1.
One-dimensional oxide nanowires, ribbons and tubes have attracted much attention because of their wide application prospects. Li Yadong et al. successfully synthesized high-quality A and B manganese dioxide nanowires and nanorods by liquid phase reaction under mild conditions, and realized the regulation of product phase at the same time. In addition, they also synthesized single crystal MoO3 nanobelts and titanate nanotubes. Part of this work has been published in the Journal of American Chemical Society (J.AM.CHEM.SOC.124 (12), 2880 ~ 288 1, 2002) and other magazines.
The outstanding progress of inorganic chemistry in recent years is mainly manifested in solid material chemistry and coordination chemistry, which has developed in step with the international development to some extent. From the perspective of traditional inorganic chemistry, the research of bio-inorganic chemistry and radiochemistry is relatively backward. With the support of the Policy Bureau of the National Natural Science Foundation of China and the Department of Chemistry of China Academy of Sciences, the seminar on the development strategy of bio-inorganic chemistry was held in Shenzhen from March 5 to 7, 2002. The meeting analyzed the development history of bio-inorganic chemistry at home and abroad and the powerful driving force and trend of cross-development and mutual promotion of life science and chemical science at present. China's bio-inorganic chemistry started in 1980s, which is about 10 years behind the international level. With the continuous support of the National Natural Science Foundation for more than ten years and the efforts of all researchers engaged in bioinorganic chemistry, the research of bioinorganic chemistry jumped three steps in 10, and the research object rose from biomolecule ligands to biomacromolecules; From studying isolated biological macromolecules to studying biological systems; In recent years, inorganic chemistry research at the cellular level has been started, and the research level has been improved year by year. China has a relatively fixed research direction in the interaction between metal complexes and biomacromolecules, the structure and function of metal protein, the chemical basis of biological effects of metal ions, inorganic medicinal chemistry and biomineralization, and the research team is getting younger and younger. However, there is still a certain gap between the overall level of bio-inorganic chemistry in China and the international level. The reason is insufficient research funds and long research cycle, but the most prominent problem is the lack of outstanding young researchers. The research of radiochemistry also shows the above characteristics, and the most important thing is to support young researchers to stand out.