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Wang Z, Gupta RK, Alkan F, Han BL, Feng L, Huang XQ, Gao ZY, Tung CH, Sun D. Dicarboxylic Acids Induced Tandem Transformation of Silver Nanocluster. J Am Chem Soc 2023; 145:19523-19532. [PMID: 37646485 DOI: 10.1021/jacs.3c01119] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Structural transformation of metal nanoclusters (NCs) is of great ongoing interest regarding their synthesis, stability, and reactivity. Although sporadic examples of cluster transformations have been reported, neither the underlying transformation mechanism nor the intermediates are unambiguous. Herein, we have synthesized a flexible 54-nuclei silver cluster (Ag54) by combining soft (tBuC≡C-) and hard (nPrCOO-) ligands. The existence of weakly coordinated nPrCOO- enhances the reactivity of Ag54, thus facilitating the dicarboxylic acid to induce structural transformation. X-ray structural analyses reveal that Ag54 transforms to Ag28 cluster-based 2D networks (Ag28a and Ag28b) induced by H2suc (succinic acid) and H2glu (glutaric acid), whereas with H2pda (2,2'-(1,2-phenylene)diacetic acid), a discrete Ag28 cluster (Ag28c) is isolated. The key intermediate Ag17 that emerges during the self-dissociation of Ag54 was isolated by using cryogenic recrystallization and characterized by X-ray crystallography. The "tandem transformation" mechanism for the structure evolution from Ag54 to Ag28a is established by time-dependent electrospray ionization mass spectrometry (ESI-MS) and UV-vis spectroscopy. In addition, the catalytic activity in the 4-nitrophenol reduction follows the sequence Ag28c > Ag28b > Ag28a > Ag54 due to more bare silver sites on the surface of the Ag28 cluster unit. Our findings not only open new avenues to the synthesis of silver NCs but also shed light on a better understanding of the structural transformation mechanism from one cluster to another or cluster-based metal-organic networks induced by dicarboxylates.
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Affiliation(s)
- Zhi Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
| | - Rakesh Kumar Gupta
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
| | - Fahri Alkan
- Department of Nanotechnology Engineering, Abdullah Gül University, Kayseri, 38080, Turkey
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
| | - Xian-Qiang Huang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, People's Republic of China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China
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Luo GG, Pan ZH, Han BL, Dong GL, Deng CL, Azam M, Tao YW, He J, Sun CF, Sun D. Total Structure, Electronic Structure and Catalytic Hydrogenation Activity of Metal-Deficient Chiral Polyhydride Cu 57 Nanoclusters. Angew Chem Int Ed Engl 2023; 62:e202306849. [PMID: 37469101 DOI: 10.1002/anie.202306849] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/21/2023]
Abstract
Accurate identifying and in-depth understanding of the defect sites in a working nanomaterial could hinge on establishing specific defect-activity relationships. Yet, atomically precise coinage-metal nanoclusters (NCs) possessing surface vacancy defects are scarce primarily owing to challenges in the synthesis and isolation of such defective NCs. Herein we report a mixed-ligand strategy to synthesizing an intrinsically chiral and metal-deficient copper hydride-rich NC [Cu57 H20 (PET)36 (TPP)4 ]+ (Cu57 H20 ). Its total structure (including hydrides) and electronic structure are well established by combined experimental and computational results. Crystal structure reveals Cu57 H20 features a cube-like Cu8 kernel embedded in a corner-missing metal-ligand shell of Cu49 (PET)36 (TPP)4 . Single Cu vacancy defect site occurs at one corner of the shell, evocative of mono-lacunary polyoxometalates. Theoretical calculations demonstrate that the above-mentioned point vacancy causes one surface hydride exposed as an interfacial capping μ3 -H- , which is accessible in chemical reaction, as proved by deuterated experiment. Moreover, Cu57 H20 shows catalytic activity in the hydrogenation of nitroarene. The success of this work opens the way for the research on well-defined chiral metal-deficient Cu and other metal NCs, including exploring their application in asymmetrical catalysis.
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Affiliation(s)
- Geng-Geng Luo
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Zhong-Hua Pan
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Guang-Lei Dong
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Cheng-Long Deng
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Mohammad Azam
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Yun-Wen Tao
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX, 75275-0314, USA
| | - Jiao He
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Cun-Fa Sun
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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Wang Z, Zhu YJ, Han BL, Li YZ, Tung CH, Sun D. A route to metalloligands consolidated silver nanoclusters by grafting thiacalix[4]arene onto polyoxovanadates. Nat Commun 2023; 14:5295. [PMID: 37652941 PMCID: PMC10471715 DOI: 10.1038/s41467-023-41050-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023] Open
Abstract
Metalloligands provide a potent strategy for manipulating the surface metal arrangements of metal nanoclusters, but their synthesis and subsequent installation onto metal nanoclusters remains a significant challenge. Herein, two atomically precise silver nanoclusters {Ag14[(TC4A)6(V9O16)](CyS)3} (Ag14) and {Ag43S[(TC4A)2(V4O9)]3(CyS)9(PhCOO)3Cl3(SO4)4(DMF)3·6DMF} (Ag43) are synthesized by controlling reaction temperature (H4TC4A = p-tert-butylthiacalix[4]arene). Interestingly, the 3D scaffold-like [(TC4A)6(V9O16)]11- metalloligand in Ag14 and 1D arcuate [(TC4A)2(V4O9)]6- metalloligand in Ag43 exhibit a dual role that is the internal polyoxovanadates as anion template and the surface TC4A4- as the passivating agent. Furthermore, the thermal-induced structure transformation between Ag14 and Ag43 is achieved based on the temperature-dependent assembly process. Ag14 shows superior photothermal conversion performance than Ag43 in solid state indicating its potential for remote laser ignition. Here, we show the potential of two thiacalix[4]arene modified polyoxovanadates metalloligands in the assembly of metal nanoclusters and provide a cornerstone for the remote laser ignition applications of silver nanoclusters.
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Affiliation(s)
- Zhi Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China
| | - Yan-Jie Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China
| | - Yi-Zhi Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China.
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Gupta RK, Li L, Wang Z, Han BL, Feng L, Gao ZY, Tung CH, Sun D. Regulating the assembly and expansion of the silver cluster from the Ag 37 to Ag 46 nanowheel driven by heteroanions. Chem Sci 2023; 14:1138-1144. [PMID: 36756341 PMCID: PMC9891368 DOI: 10.1039/d2sc06436g] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/26/2022] [Indexed: 12/27/2022] Open
Abstract
Precise control over the shape and size of metal nanoclusters through anion template-driven self-assembly is one of the key scientific goals in the nanocluster community, however, it is still not understood comprehensively. In this work, we report the controllable synthesis and atomically precise structures of silver nanowheels Ag37 and Ag46, using homo (Cl- ions) and heteroanion (Cl- and CrO4 2- ions) template strategies, along with macrocyclic p-phenyl-thiacalix[4]arene and small iPrS- ligands. Structural analyses revealed that in Ag37, Cl- ions serve as both local and global templates, whereas CrO4 2- ions function as local and Cl- ions as global templates in Ag46, resulting in a pentagonal nanowheel (Ag37) and a hexagonal (Ag46) nanowheel. The larger ionic size and more negative charges of CrO4 2- ions than Cl- ions offer more coordination sites for the silver atoms and are believed to be the key factors that drive the nanowheel core to expand significantly. Also, by taking advantage of the deep cavity of thiacalix[4]arene with an extended phenyl group, Ag46 has been used as a host material for dye adsorption depending on the charge and size of organic dyes. The successful use of heteroanions to control the expansion of well-defined silver nanowheels fills the knowledge gap in understanding the directing role of heteroanions in dictating the shape and size of nanoclusters at the atomic level.
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Affiliation(s)
- Rakesh Kumar Gupta
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Li Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Zhi Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Bao-Liang Han
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Lei Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Henan Normal UniversityXinxiang453007China
| | - Chen-Ho Tung
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University Ji'nan 250100 China
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Yuan ZR, Wang Z, Han BL, Zhang CK, Zhang SS, Zhu ZY, Yu JH, Li TD, Li YZ, Tung CH, Sun D. Ag22 Nanoclusters with Thermally Activated Delayed Fluorescence Protected by Ag/Cyanurate/Phosphine Metallamacrocyclic Monolayers through In‐Situ Ligand Transesterification. Angew Chem Int Ed Engl 2022; 61:e202211628. [DOI: 10.1002/anie.202211628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Zhi-Rui Yuan
- Qilu University of Technology Department of Chemistry and Chemical Engineering CHINA
| | - Zhi Wang
- Shandong University Department of Chemistry and Chemical Engineering CHINA
| | - Bao-Liang Han
- Shandong University Department of Chemistry and Chemical Engineering CHINA
| | - Cheng-Kai Zhang
- Shandong University Department of Chemistry and Chemical Engineering CHINA
| | - Shan-Shan Zhang
- Shandong University Department of Chemistry and Chemical Engineering CHINA
| | - Zhen-Yu Zhu
- Qilu University of Technology Department of Chemistry and Chemical Engineering CHINA
| | - Jiu-Hong Yu
- Qilu University of Technology Department of Chemistry and Chemical Engineering CHINA
| | - Tian-Duo Li
- Qilu University of Technology Department of Chemistry and Chemical Engineering CHINA
| | - Ying-Zhou Li
- Qilu University of Technology Department of Chemistry and Chemical Engineering CHINA
| | - Chen-Ho Tung
- Shandong University Department of Chemistry and Chemical Engineering CHINA
| | - Di Sun
- Shandong University Department of Chemistry and Chemical Engineering Shanda South Road 27 250100 Jinan CHINA
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Sun PP, Han BL, Li HG, Zhang CK, Xin X, Dou JM, Gao ZY, Sun D. Real-Time Fluorescent Monitoring of Kinetically Controlled Supramolecular Self-Assembly of Atom-Precise Cu 8 Nanocluster. Angew Chem Int Ed Engl 2022; 61:e202200180. [PMID: 35191142 DOI: 10.1002/anie.202200180] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 12/16/2022]
Abstract
Kinetically stable and long-lived intermediates are crucial in monitoring the progress and understanding of supramolecular self-assembly of diverse aggregated structures with collective functions. Herein, the complex dynamics of an atomically precise CuI nanocluster [Cu8 (t BuC6 H4 S)8 (PPh3 )4 ] (Cu8a) is systematically investigated. Remarkably, by monitoring the aggregation-induced emission (AIE) and electron microscopy of the kinetically stable intermediates in real time, the directed self-assembly (DSA) process of Cu8a is deduced. The polymorphism and different emission properties of Cu NCs aggregates were successfully captured, allowing the structure-optical property relationship to be established. More importantly, the utilization of a mathematical "permutation and combination" ideology by introducing a heterogeneous luminescent agent of a carbon dot (CD) to Cu8a aggregates enriches the "visualization" fluorescence window, which offers great potential in real time application for optical sensing of materials.
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Affiliation(s)
- Pan-Pan Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
| | - Hong-Guang Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
| | - Cheng-Kai Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
| | - Xia Xin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, P. R. China
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, P.R. China
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Guo QL, Han BL, Sun CF, Wang Z, Tao Y, Lin JQ, Luo GG, Tung CH, Sun D. Observation of a bcc-like framework in polyhydrido copper nanoclusters. Nanoscale 2021; 13:19642-19649. [PMID: 34816855 DOI: 10.1039/d1nr05567d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cu is well-known to adopt a face-centered cubic (fcc) structure in the bulk phase. Ligand-stabilized Cu nanoclusters (NCs) with atomically precise structures are an emerging class of nanomaterials. However, it remains a great challenge to have non-fcc structured Cu NCs. In this contribution, we report the syntheses and total structure determination of six 28-nuclearity polyhydrido Cu NCs: [Cu28H16(dppp)4(RS)4(CF3CO2)8] (dppp = 1,3-bis(diphenylphosphino)propane, RSH = cyclohexylthiol, 1; tert-butylthiol, 3; and 2-thiophenethiol, 4) and [Cu28H16(dppe)4(RS)4(CH3CO2)6Cl2] (dppe = 1,2-bis(diphenylphosphino)ethane, RSH = (4-isopropyl)thiophenol, 2; 4-tert-butylbenzenethiol, 5; and 4-tert-butylbenzylmercaptan, 6). Their well-defined structures solved by X-ray single crystal diffraction reveal that these 28-Cu NCs are isostructural, and the overall metal framework is arranged as a sandwich structure with a core-shell Cu2@Cu16 unit held by two Cu5 fragments. One significant finding is that the organization of 18 Cu atoms in the Cu2@Cu16 could be regarded as an incomplete and distorted version of 3 × 2 × 2 "cutout" of the body-centered cubic (bcc) bulk phase, which was strikingly different to the fcc structure of bulk Cu. The bcc framework came as a surprise, as no bcc structures have been previously observed in Cu NCs. A comparison with the ideal bcc arrangement of 18 Cu atoms in the bcc lattice suggests that the distortion of the bcc structure results from the insertion of interstitial hydrides. The existence, number, and location of hydrides in these polyhydrido Cu NCs are established by combined experimental and DFT results. These results have significant implications for the development of high-nuclearity Cu hydride NCs with a non-fcc architecture.
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Affiliation(s)
- Qi-Lin Guo
- Key Laboratory of Environmental Friendly Functional Materials Ministry of Education, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China.
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China.
| | - Cun-Fa Sun
- Key Laboratory of Environmental Friendly Functional Materials Ministry of Education, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China.
| | - Zhi Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China.
| | - Yunwen Tao
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, USA.
| | - Jin-Qing Lin
- Key Laboratory of Environmental Friendly Functional Materials Ministry of Education, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China.
| | - Geng-Geng Luo
- Key Laboratory of Environmental Friendly Functional Materials Ministry of Education, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China.
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China.
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan, 250100, People's Republic of China.
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Han BL, Wang Z, Gupta RK, Feng L, Wang S, Kurmoo M, Gao ZY, Schein S, Tung CH, Sun D. Precise Implantation of an Archimedean Ag@Cu 12 Cuboctahedron into a Platonic Cu 4Bis(diphenylphosphino)hexane 6 Tetrahedron. ACS Nano 2021; 15:8733-8741. [PMID: 33909407 DOI: 10.1021/acsnano.1c00942] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Precision loading of nanoclusters in confined spaces, which has been enthusiastically pursued in the scientific realm, is still associated with some mysteries of "how", "when", and "why". Here, we isolated two similar heterometallic cluster-in-cage compounds, [Ag@Cu12S8@Cu4(dpph)6]X (X = OH, SD/AgCu16a and X = PF6, SD/AgCu16b; SD = SunDi), by use of an antigalvanic reaction between organometallic [PhC≡CCu]n and Ph3CSH with elemental silver. Both compounds are formed by fitting an Archimedean Ag@Cu12 cuboctahedral cluster into a Platonic Cu4(dpph)6 tetrahedral cage [dpph = bis(diphenylphosphino)hexane]. The Ag@Cu12 cluster is a hollow cuboctahedral Cu12 cage filled with a central AgI atom, and all eight triangular faces of the Ag@Cu12 cuboctahedron are triply capped by eight S2- ions, four of which in a tetrahedral array further internally pillar four Cu vertices of the outer Cu4(dpph)6 tetrahedron, fixing the cluster in the cage. Both compounds can be deemed as molecular fragments excised from porous nanomaterials filled with discrete nanoclusters, thus providing more details for understanding the confined growth of atomically precise nanoclusters. Electrospray ionization mass spectrometry (ESI-MS) reveals that the AgCu16 cluster is quite stable in CH2Cl2 and can stepwise lose dpph ligand in the gas phase under increased collision energy. This work not only presents a precise aggregation of metal atoms in a confined cavity to form a cluster-in-cage compound but also provides deep insights into the binding and geometry matching between clusters and cages in one entity.
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Affiliation(s)
- Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Zhi Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Rakesh Kumar Gupta
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Suna Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS-UMR 7177, 4 rue Blaise Pascal, Strasbourg 67008 Cedex, France
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan, Xinxiang 453007, People's Republic of China
| | - Stan Schein
- California NanoSystems Institute and Department of Psychology, University of California, Los Angeles, California 90095-1563, United States
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
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Zhao LF, Iwasaki Y, Han BL, Wang J, Zhang Y, Han J, Liu GY, Jiang X. TRIIODOTHYRONINE ACTIVATES GLYCEROL-3-PHOSPHATE ACYLTRANSFERASE 3 VIA AGGTCA-LIKE-DIRECT-REPEAT-4 TYPE THYROID HORMONE RESPONSE ELEMENT. Acta Endocrinol (Buchar) 2020; 16:129-135. [PMID: 33029227 DOI: 10.4183/aeb.2020.129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background Thyroid hormone participates in lipid metabolism regulation. However, the effects on triacyleride or triacylglycerol metabolism are complex and not fully clarified yet. In this study, we try to identify novel thyroid hormone-targeting lipogenic metabolic genes and analyze their molecular regulative mechanism. Method Thirty-five promoters of twenty-nine human lipogenic regulative enzyme genes were constructed into pXP1 luciferase reporter plasmid (PFK2/FBP2-luc) and transfected into HeGP2 cells, respectively. Gene expression induced by triiodothyronine (T3) was detected by luciferase assay. The T3-activated gene promoter was then analyzed by sequence analysis, deletion and mutation, and electrophoretic mobility shift assay (EMSA). Results After 10 nM T3 stimulation for 36 h, phosphogluconate dehydrogenase, malic enzyme, Glycerol-3-phosphate acyltransferase (GPAT) 3, and 1-acylglycerol-3-phosphate O-acyltransferase (AGPAT) 2 were significantly activated, respectively. A AGGTCA-like-direct-repeat-4 consensus thyroid hormone response element (DR4-TRE)-like sequence was found in the GPAT3 promoter, which was then verified to be necessary for T3-induced GPAT3 activation by gene deletion and mutation analysis. EMSA further identified that T3-thyroid receptor (TR) α-retinoid-X receptor (RXR) complex directly bound on the GPAT3 promoter. Conclusion Triiodothyronine could activate the GPAT3 through DR4-TRE-like sequence binding to participate in lipogenic regulation. AGPAT2 may be another thyroid hormone target enzyme.
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Affiliation(s)
- L F Zhao
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - Y Iwasaki
- Kochi University, The Health Care Center, Kochi, Japan
| | - B L Han
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - J Wang
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - Y Zhang
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - J Han
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - G Y Liu
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
| | - X Jiang
- Tianjin First Center Hospital, Department of Endocrinology, Tianjin, China
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Han BL, Liu Z, Feng L, Wang Z, Gupta RK, Aikens CM, Tung CH, Sun D. Polymorphism in Atomically Precise Cu23 Nanocluster Incorporating Tetrahedral [Cu4]0 Kernel. J Am Chem Soc 2020; 142:5834-5841. [DOI: 10.1021/jacs.0c01053] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bao-Liang Han
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
| | - Zhen Liu
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Lei Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
| | - Zhi Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
| | - Rakesh Kumar Gupta
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
| | - Christine M. Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Chen-Ho Tung
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, People’s Republic of China
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Han BL, Wang YM, Xue YW. [Relationship between body mass index and clinicopathological characteristics and prognosis of gastric cancer patients]. Zhonghua Zhong Liu Za Zhi 2019; 41:527-532. [PMID: 31357840 DOI: 10.3760/cma.j.issn.0253-3766.2019.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between body mass index (BMI) and clinicopathological characteristics and prognosis of gastric cancer patients. Methods: The clinical data of 788 patients with advanced gastric cancer were retrospectively analyzed. According to WHO weight standard, BMI<18.5 kg/m(2) was the low weight group, BMI 18.5~< 25.0 kg/m(2) was the normal weight group, BMI ≥ 25.0 kg/m(2) was the overweight group. The low weight group included 127 cases, the normal weight group included 540 cases and the overweight group included 121 cases. The relationship between different BMI groups and clinicopathological characteristics of patients was analyzed. Cox multivariate regression model was used to analyze the independent factor of the prognosis of patients. Results: The average BMI of 788 patients was 21.70 kg/m(2). The patients' BMI was significantly correlated with depth of invasion, maximum diameter of tumors, neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) (all P<0.05). BMI was marginally correlated with gender, age, smoking, alcohol consumption, TNM stage, lymph node metastasis and histological type (all P>0.05). Furthermore, BMI was significantly correlated with prealbumin, prognostic nutritional index, total protein, albumin and hemoglobin levels (all P<0.05). BMI was also significantly correlated with intraoperative bleeding volume, operation time, number of lymph node resection, number of lymph node metastasis and lymph node metastatic ratio (all P<0.05). The median survival time of the entire group was 35.3 months. The median survival time of patients in low weight group, normal weight group, and overweight group was 21.0 months, 26.3 months, and 31.2 months, respectively, the differences were statistically significant (P<0.001). Cox multivariate analysis showed that TNM stage, depth of tumor invasion, lymph node metastasis, PLR and BMI were independent risk factors of the prognosis of patients with gastric cancer (all P<0.05). Conclusions: BMI is associated with the nutritional status, intraoperative blood loss, operative time, and lymph node metastatic ratio of patients with gastric cancer. BMI is an independent risk factor of the prognosis of patients with gastric cancer. The overall survival time of patients with low body weight is shorter than those of normal weight and overweight patients.
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Affiliation(s)
- B L Han
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin 150081, China
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Abstract
BACKGROUND Various therapeutic methods are used in isolated left hepatolithiasis (ILH), and long-term results are not as satisfactory as they should be. METHODS A retrospective analysis of 128 patients with ILH who were treated in our center over the last 22 years was undertaken to address patient age, gender, preoperative evaluation, operative findings, treatment modalities, and postoperative courses. RESULTS Sixty of the 128 patients were male and 68 were female, with a mean age of 42 years (range, 16-72 years). Among these patients, most (81%) had stones in both left external hepatic duct (LEHD) and left medial hepatic duct; in contrast 13 patients (10%) had stones only in the LEHD, and 7 patients (6%) had stones only in the left hepatic duct. Concomitant strictures were present in the left hepatic duct, left medial hepatic duct, and LEHD in 60%, 76%, and 82%, respectively, most of which were severe. When compared with left lateral segmentectomy, left hepatic lobectomy had a lower rate of residual stones (4% vs 22%; P < .01). Residual/recurrent stones and ductal strictures were the 2 most common causes that affected the long-term results. Before June 1996, left lateral segmentectomy was performed more frequently than left hepatic lobectomy (59% vs 12%; P < .01); after June 1996, left hepatic lobectomy was performed more frequently (77% vs 13%; P < .01). Although there were no differences in length of operation, intraoperative bleeding, and postoperative complications, residual stones were more common after left lateral segmentectomy. CONCLUSIONS Left hepatic lobectomy appears to be the most effective treatment for selected patients with ILH, if other operative procedures cannot remove all the related lesions, which include stones, dilation, stricture, or potential cholangiocarcinoma.
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Affiliation(s)
- W B Sun
- Hepatobiliary Surgery Center of the People's Liberation Army, Southwest Hospital, Third Military Medical University, Chongqing, China
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He ZP, Wang AC, Han BL. [Surgical treatment for hilar bile duct stricture]. Zhonghua Wai Ke Za Zhi 1994; 32:266-8. [PMID: 7842938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
474 patients suffering from hilar bile duct strictures were treated from 1975 to 1992. 74.7% of the patients had a history of biliary surgery for 1-5 times. Causes of strictures were of iatrogenic in 10.9%, of primary in 71.7%, and of suppurative in 7.1%. Site of strictures: LHD in 37.6%, LHD+RHD+CHD in 17.4%, RHD in 9.6%, CHD in 14.7%, and LHD+RHD in 11.5%. The inferior end of the CBD were of spasmodic or flaccid in 23.6% and 48.3%, respectively. Treatment included cholangioplasty in 56.5%, dilatation and stent in 15.2%, lobectomy and segmetectomy of involued liver in 48%, repairing in 11.4%, bilio-enterostomy in 60.7%, and portal vein decompression in 6.3%.
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Affiliation(s)
- Z P He
- South-West Hospital, Third Military Medical University
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Abstract
A model of reversible, extrahepatic biliary obstruction is described. Vessel loop blockade of the biliary tree results in obstructive jaundice while removal of the exteriorized vessel loop provides internal biliary drainage without subsequent laparotomy. This technique combined with a system for chronic venous infusion and arterial blood sampling in the unrestrained rat is ideal for long-term metabolic studies of obstructive jaundice. Male Fisher 344 rats (275-350 g) underwent either the combined procedure of total biliary tract blockade and vascular access or sham operation. Mean serum bilirubin was significantly elevated (12.7 +/- 8.9 mg/dl) in the experimental group and following relief of biliary obstruction significantly dropped below 1 mg/dl in all animals except one. Concomitant changes in alkaline phosphatase, glutamate oxaloacetate transaminase, and glutamate pyruvate transaminase were seen. Experimental and control rats initially lost weight following laparotomy; however, mean body weight stabilized by the 5th postoperative day and was similar in both groups on the 10th postoperative day. This combined procedure is a simple, effective and reproducible method of obstructive jaundice.
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Affiliation(s)
- M C Posner
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York 10021
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Zhou YB, Han BL, Wang W. [The value of ERCP in the diagnosis of biliary tract disease]. Zhonghua Wai Ke Za Zhi 1985; 23:742-4, 782. [PMID: 3830667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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