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Lin X, Yi X, Zhang J, Zhang L. Structural Regulation and Transformation of Oxalate-Bridged Polyoxo-Titanium Nanoclusters: Intercluster Docking Strategy and Polyiodides Induced Rearrangement. Inorg Chem 2023; 62:21053-21060. [PMID: 38044558 DOI: 10.1021/acs.inorgchem.3c02828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Although significant progress has been made in the synthetic and structural chemistry of polyoxo-titanium clusters (PTCs), the rational regulation of their geometric and electronic configurations is rather difficult. Meanwhile, it is also challenging to induce their systematic structural transformation, thereby customizing their physicochemical properties. In this work, we illustrate the intercluster docking strategy, which utilizes oxalates as multidentate ligands to connect and regulate the modular assembly of polynuclear Ti-O subunits into nanoclusters Ti24(μ3-O)26(μ2-O)4(OiPr)34(Oxal) (PTC-361), Ti28(μ4-O)2(μ3-O)28(μ2-O)8(OtBu)22(PA)12(Oxal) (PTC-362), Ti10(μ3-O)6(OtBu)14(PA)6(Oxal)2(tBC)2 (PTC-363), and Ti24(μ3-O)20(μ2-O)12(PA)12(Oxal)2(Hoxal)8(PyA)8 (PTC-364) (H2Oxal = oxalic acid; HOiPr = isopropanol; HOtBu = t-butanol; H2tBC = 4-tert-butylcatechol; HPA = propionic acid; and HPyA = 2-picolinic acid). Furthermore, the stepwise addition of iodine gives rise to polyiodide I3- to assist the controllable structure transformation of PTC-361 to [Ti12(μ-O)15(OiPr)17]I3 (PTC-365) and even to [Ti24(μ2-O)2(μ3-O)30(OiPr)30](I3)2 (PTC-366) with increasing polyiodide content. Moreover, modification with 4-tert-butylcatecholate as light absorbent material on the surface layers of PTCs and polyiodide I3- incorporation in PTCs expand their light response to the visible region and reduce their highest occupied molecular orbital-lowest unoccupied molecular orbital gaps. This work successfully develops an intercluster docking strategy and gives precise modulation on the geometry of nanoclusters as well as the optimization of their desired properties.
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Affiliation(s)
- Xin Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiaofeng Yi
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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2
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Roy J, Chakraborty P, Paramasivam G, Natarajan G, Pradeep T. Gas phase ion chemistry of titanium-oxofullerene with ligated solvents. Phys Chem Chem Phys 2022; 24:2332-2343. [PMID: 35018393 DOI: 10.1039/d1cp04716g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We investigated the gas phase fragmentation events of highly symmetric fullerene-like (FN-like) titanium oxo-cluster anions, [H12Ti42O60(OCH3)42(HOCH3)10(H2O)2]2- (1) and [H7Ti42O60(OCH3)42(HOCH3)10(H2O)3]1- (2). These oxo-clusters contain a closed cage Ti42O60 core, protected by a specific number of methoxy, methanol, and water molecules acting as ligands. These dianionic and monoanionic species were generated in the gas phase by electrospray ionization of the H6[Ti42(μ3-O)60(OiPr)42(OH)12] (TOF) cluster in methanol. Collision induced dissociation studies of 1 revealed that upon increasing the collision energy, the protecting ligands were stripped off first, and [Ti41O58]2- was formed as the first fragment from the Ti42O60 core. Thereafter, systematic TiO2 losses were observed giving rise to subsequent fragments like [Ti40O56]2-, [Ti39O54]2-, [Ti38O52]2-, etc. Similar fragments were also observed for monoanionic species 2 as well. Systematic 23 TiO2 losses were observed, which were followed by complete shattering of the cage. We also carried out computational studies using density functional theory (DFT) to investigate the structures and fragmentation mechanism. The fragmentation of TOF was comparable to the fragmentation of C60 ions, where systematic C2 losses were observed. We believe that this is a consequence of topological similarity. The present study provides valuable insights into the structural constitution of TOF clusters and stability of the parent as well as the resulting cage-fragments in the gas phase.
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Affiliation(s)
- Jayoti Roy
- DST Unit of Nanoscience (DST UNS) & Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Papri Chakraborty
- DST Unit of Nanoscience (DST UNS) & Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Ganesan Paramasivam
- DST Unit of Nanoscience (DST UNS) & Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Ganapati Natarajan
- International Centre for Clean Water (ICCW), IIT Madras Research Park, Taramani, Chennai 6000113, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) & Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
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3
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Gao C, Liu C, Said A, Niu H, Wang D, Wang G, Tung CH, Wang Y. Syntheses, Structures and Ligand Binding Modes of Titanium-Oxide Complexes of 2-Picolinate. Dalton Trans 2022; 51:3706-3712. [DOI: 10.1039/d1dt04170c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six titanium-oxide clusters (TOCs) comprised of 6-19 Ti atoms all of which are of nanometer size were synthesized with the functionalization of 2-picolinate (PA). Their structures were determined by single-crystal...
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4
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Kumar A. Self Assemblies of Poly(ether ether ketone) Block Copolymers for Biomedical Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202102238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Avneesh Kumar
- International Center for Materials Science JNCASR, Jakkur Bangalore 560064
- Center for Environmentally Friendly Materials 27-1 Muroran Institute of Technology Muroran Hokkaido 050-8585 Japan
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5
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Schubert U. Titanium-Oxo Clusters with Bi- and Tridentate Organic Ligands: Gradual Evolution of the Structures from Small to Big. Chemistry 2021; 27:11239-11256. [PMID: 34018652 PMCID: PMC8457127 DOI: 10.1002/chem.202101287] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Indexed: 11/16/2022]
Abstract
Homometallic titanium oxo clusters are one of the most important groups of metal oxo clusters, with more than 300 examples characterized by X-ray structure analyses. Most of them are uncharged and are obtained by partial hydrolysis and condensation of titanium alkoxo derivatives. The cluster cores, ranging from 3 to >50 titanium atoms, are stabilized by organic ligands. Apart from residual OR groups, carboxylato and phosphonato ligands are most frequent. The article critically reviews and categorizes the known structures and works out basic construction principles by comparing the different cluster types.
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Affiliation(s)
- Ulrich Schubert
- Institute of Materials ChemistryTechnische Universität WienGetreidemarkt 91060WienAustria
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6
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Wang C, Wang SJ, Kong FG. Calixarene-Protected Titanium-Oxo Clusters and Their Photocurrent Responses and Photocatalytic Performances. Inorg Chem 2021; 60:5034-5041. [PMID: 33677968 DOI: 10.1021/acs.inorgchem.1c00063] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three photosensitive tert-butylcalix[n]arene (TBC[n], n = 4, 6, 8)-protected titanium-oxo clusters (TOCs), formulated as [Ti4(μ3-O)2(TBC[4])2(OiPr)4(DEF)2]·DEF (1, TBC[4]-Ti4, DEF = N,N-diethylformamide), [Ti4(μ4-O)TBC[6](OCH3)9]·H2O (2, TBC[6]-Ti4), and [Ti4(μ3-O)2(OiPr)4TBC[8](DEF)2]·DEF (3, TBC[8]-Ti4), were successfully synthesized and characterized. Because of the generation of charge transfer from TBC[n] to the TiO core, the three TBC[n]-decorated TOCs show a broadened visible-light absorption and narrowed optical band gap based on the UV-visible spectra and density functional theory calculations. The corresponding photosensitive electrodes prepared using these three TOCs exhibit stable photocurrent responses. Furthermore, their photocatalytic performances for hydrogen evolution and methylene blue degradation were evaluated, and all of the materials display excellent photocatalytic activity and stability. The calixarene-Ti coordination is therefore an effective strategy to enlarge the visible-light absorption band of Ti-O materials and improve their photoelectric/photocatalytic performances.
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Affiliation(s)
- Chao Wang
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road, Jinan, 250353, China
| | - Shou-Juan Wang
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road, Jinan, 250353, China
| | - Fan-Gong Kong
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road, Jinan, 250353, China
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7
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Yang XX, Yu WD, Yi XY, Liu C. Accurate Regulating of Visible-Light Absorption in Polyoxotitanate-Calix[8]arene Systems by Ligand Modification. Inorg Chem 2020; 59:7512-7519. [PMID: 32394703 DOI: 10.1021/acs.inorgchem.0c00330] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
With use of a macrocyclic polyphenol, tert-butylcalix[8]arene (TBC[8]), as ligands, a series of TBC[8]-stabilized {Ti4O2}clusters, containing penta- and hexacoordinated Ti centers, were synthesized. Such complexes are "core-shell" shaped containing a {Ti4O2} core arranged in a zigzag fashion. While outer walls of the clusters are decorated by deprotonated TBC[8], their upper and lower surfaces can be modified by various O- or N-donor ligands, and the ratio of the penta- and hexacoordinated Ti(IV) centers in the {Ti4O2} core can be precisely regulated from 4:0, to 3:1, to 2:2, to 1:3, and finally to 0:4. The combined coordination of different ligands in the axial direction shows significant influence on the adsorption of the TBC[8]-Ti4 system in the visible-light region, and their absorption edge can be precisely regulated from 600 to 700 nm. The above structural functionalization in the TBC[8]-Ti4 system also tunes their photocatalytic H2 production activities and oxidative desulfurization ability. Thus, for the first time, by confining the polyoxotitanium cluster in macrocyclic molecules, we provide an example of understanding the structure-property relationship of titanium-oxygen materials by ligand modification.
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Affiliation(s)
- Xin-Xue Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan People's Republic of China
| | - Wei-Dong Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan People's Republic of China
| | - Xiao-Yi Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan People's Republic of China
| | - Chao Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan People's Republic of China
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8
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Solid-state structure and solution behavior of two titanium oxo-alkoxide complexes with phenylphosphonate ligands. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Svensson FG, Daniel G, Tai CW, Seisenbaeva GA, Kessler VG. Titanium phosphonate oxo-alkoxide “clusters”: solution stability and facile hydrolytic transformation into nano titania. RSC Adv 2020; 10:6873-6883. [PMID: 35493899 PMCID: PMC9049727 DOI: 10.1039/c9ra10691j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/09/2020] [Indexed: 01/14/2023] Open
Abstract
Oligonuclear Ti(iv) oxo-alkoxide-phosphonate complexes, produced by reaction of tBuPO(OH)2 with Ti(OR)4, are easily topotactically hydrolyzed forming intricate nanostructures.
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Affiliation(s)
- Fredric G. Svensson
- Department of Molecular Sciences
- Swedish University of Agricultural Sciences
- 750 07 Uppsala
- Sweden
| | - Geoffrey Daniel
- Department of Biomaterials and Technology/Wood Science
- Swedish University of Agricultural Sciences
- 75007 Uppsala
- Sweden
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry
- Stockholm University
- 106 91 Stockholm
- Sweden
| | - Gulaim A. Seisenbaeva
- Department of Molecular Sciences
- Swedish University of Agricultural Sciences
- 750 07 Uppsala
- Sweden
| | - Vadim G. Kessler
- Department of Molecular Sciences
- Swedish University of Agricultural Sciences
- 750 07 Uppsala
- Sweden
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10
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Zhang L, Xu L, Li J. First Principles Study on Structurally Resolved Titanium Dioxide Nanoparticles Functionalized by Organic Ligands. J STRUCT CHEM+ 2019. [DOI: 10.1134/s002247661904019x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Understanding photoresponsive catechol-based polyoxotitanate molecules: A combined experimental and first principles investigation. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.11.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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13
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Fang WH, Zhang L, Zhang J. Synthetic investigation, structural analysis and photocatalytic study of a carboxylate-phosphonate bridged Ti 18-oxo cluster. Dalton Trans 2018; 46:803-807. [PMID: 28001154 DOI: 10.1039/c6dt04474c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
By the combination of carboxylate and phosphonate ligands, we herein report a nanosized H2[Ti18(μ3-O)14(μ2-O)6(O3P-Phen)2(PA)16(OPri)14] (PTC-51) (HPA = propionic acid, O3P-Phen = phenyl phosphonate), whose structure can be observed as the linkage of independent phosphonate supporting and carboxylate bridging hexanuclear Ti(iv) clusters. We also demonstrate a concise crystalline phase diagram, which shows the important effect of phosphonate and carboxylate ligand ratio during synthetic reactions. The photocatalytic H2 evolution activities of the obtained polyoxotitanate materials have been studied, with carboxylate-Ti6 presenting the maximum H2 production rate up to 267.78 μmol g-1 h-1.
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Affiliation(s)
- Wei-Hui Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
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14
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Wang C, Liu C, Tian HR, Li LJ, Sun ZM. Designed Cluster Assembly of Multidimensional Titanium Coordination Polymers: Syntheses, Crystal Structure and Properties. Chemistry 2018; 24:2952-2961. [DOI: 10.1002/chem.201705013] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Chao Wang
- State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Chao Liu
- State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Hong-Rui Tian
- State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
| | - Lei-Jiao Li
- State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
| | - Zhong-Ming Sun
- State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Science; Fuzhou Fujian 350002 China
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15
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Fang WH, Zhang L, Zhang J. Synthetic strategies, diverse structures and tuneable properties of polyoxo-titanium clusters. Chem Soc Rev 2018; 47:404-421. [DOI: 10.1039/c7cs00511c] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A review of polyoxo-titanium clusters (PTCs), with an emphasis on synthetic methodologies, diverse structures, tuneable optical properties and potential applications.
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Affiliation(s)
- Wei-Hui Fang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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16
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Sharma K, Antony R, Kalita AC, Gupta SK, Davis P, Murugavel R. Complex Structural Landscape of Titanium Organophosphonates: Isolation of Structurally Related Ti4, Ti5, and Ti6 Species and Mechanistic Insights. Inorg Chem 2017; 56:12848-12858. [DOI: 10.1021/acs.inorgchem.7b01651] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kamna Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rajendran Antony
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Alok Ch. Kalita
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sandeep Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Paul Davis
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ramaswamy Murugavel
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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17
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Wang JF, Fang WH, Li DS, Zhang L, Zhang J. Cocrystal of {Ti4} and {Ti6} Clusters with Enhanced Photochemical Properties. Inorg Chem 2017; 56:2367-2370. [DOI: 10.1021/acs.inorgchem.6b02913] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian-Fang Wang
- College of Materials
and Chemical Engineering, Research Institute of Materials, China Three Gorges University, Yichang 443002, P. R. China
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Wei-Hui Fang
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Dong-Sheng Li
- College of Materials
and Chemical Engineering, Research Institute of Materials, China Three Gorges University, Yichang 443002, P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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18
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Fang WH, Zhang L, Zhang J. A 3.6 nm Ti52–Oxo Nanocluster with Precise Atomic Structure. J Am Chem Soc 2016; 138:7480-3. [DOI: 10.1021/jacs.6b03489] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Wei-Hui Fang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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19
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Zhang G, Hou J, Tung CH, Wang Y. Small Titanium Oxo Clusters: Primary Structures of Titanium(IV) in Water. Inorg Chem 2016; 55:3212-4. [PMID: 26990885 DOI: 10.1021/acs.inorgchem.6b00129] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For sol-gel synthesis of titanium oxide, the titanium(IV) precursors are dissolved in water to form clear solutions. However, the solution status of titanium(IV) remains unclear. Herein three new and rare types of titanium oxo clusters are isolated from aqueous solutions of TiOSO4 and TiCl4 without using organic ligands. Our results indicate that titanium(IV) is readily hydrolyzed into oxo oligomers even in highly acidic solutions. The present clusters provide precise structural information for future characterization of the solution species and structural evolution of titanium(IV) in water and, meanwhile, are new molecular materials for photocatalysis.
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Affiliation(s)
- Guanyun Zhang
- Key Lab of Colloid and Interface Science of the Education Ministry, Department of Chemistry and Chemical Engineering, Shandong University , Ji'nan 250199, P. R. China
| | - Jie Hou
- Key Lab of Colloid and Interface Science of the Education Ministry, Department of Chemistry and Chemical Engineering, Shandong University , Ji'nan 250199, P. R. China
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Science of the Education Ministry, Department of Chemistry and Chemical Engineering, Shandong University , Ji'nan 250199, P. R. China
| | - Yifeng Wang
- Key Lab of Colloid and Interface Science of the Education Ministry, Department of Chemistry and Chemical Engineering, Shandong University , Ji'nan 250199, P. R. China
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20
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Affiliation(s)
- Joydeb Goura
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
| | - Vadapalli Chandrasekhar
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
- National Institute of Science Education and Research, Institute of Physics Campus, Sachivalaya Marg,
Sainik School, Bhubaneswar, Orissa 751 005, India
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21
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Seisenbaeva GA, Melnyk IV, Hedin N, Chen Y, Eriksson P, Trzop E, Zub YL, Kessler VG. Molecular insight into the mode-of-action of phosphonate monolayers as active functions of hybrid metal oxide adsorbents. Case study in sequestration of rare earth elements. RSC Adv 2015. [DOI: 10.1039/c4ra15531a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Organic–inorganic hybrid adsorbents for separation of rare earth elements were prepared by grafting of amino phosphonic acid ligands onto mesoporous TiO2. Their structure and capacity were elucidated using X-ray studies of molecular model compounds.
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Affiliation(s)
- Gulaim A. Seisenbaeva
- Department of Chemistry and Biotechnology, Biocenter
- Swedish University of Agricultural Sciences
- 750 07 Uppsala
- Sweden
| | - Inna V. Melnyk
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164
- Ukraine
| | - Niklas Hedin
- Berzelii Centre EXSELENT
- Department of Materials and Environmental Chemistry
- Arrhenius Laboratory
- Stockholm University
- 106 91 Stockholm
| | - Yang Chen
- Department of Chemistry
- University at Buffalo
- SUNY
- Buffalo
- USA
| | - Philip Eriksson
- Department of Chemistry and Biotechnology, Biocenter
- Swedish University of Agricultural Sciences
- 750 07 Uppsala
- Sweden
| | - Elżbieta Trzop
- Department of Chemistry
- University at Buffalo
- SUNY
- Buffalo
- USA
| | - Yuriy L. Zub
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164
- Ukraine
| | - Vadim G. Kessler
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164
- Ukraine
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22
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Coppens P, Chen Y, Trzop E. Crystallography and properties of polyoxotitanate nanoclusters. Chem Rev 2014; 114:9645-61. [PMID: 24820889 DOI: 10.1021/cr400724e] [Citation(s) in RCA: 215] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Philip Coppens
- Chemistry Department, University at Buffalo, SUNY , Buffalo, New York 14260-3000, United States
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Czakler M, Artner C, Schubert U. Acetic Acid Mediated Synthesis of Phosphonate-Substituted Titanium Oxo Clusters. Eur J Inorg Chem 2014; 2014:2038-2045. [PMID: 25814832 PMCID: PMC4362471 DOI: 10.1002/ejic.201400051] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Indexed: 11/07/2022]
Abstract
New phosphonate/acetate-substituted titanium oxo/alkoxo clusters were prepared from Ti(OiPr)4 and bis(trimethylsilyl) phosphonates in the presence of acetic acid, which served to generate water in situ through ester formation. The process led to clusters with a higher degree of condensation than in previously known phosphonate-substituted titanium oxo clusters. The clusters [Ti6O4(OiPr)10(OAc)2(O3PR)2] (OAc = acetate) were obtained for a large variety of functional and non-functional groups R under a range of reaction conditions. This cluster type, which is also retained in solution, therefore appears to be very robust. Two other clusters, [Ti5O(OiPr)11(OAc)(O3PCH2CH2CH2Br)3] and [Ti5O3(OiPr)6(OAc)4(O3P-xylyl)2], were only isolated in special cases.
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Affiliation(s)
- Matthias Czakler
- Institute of Materials Chemistry, Vienna University of
Technology, Getreidemarkt 9, 1060Wien, Austria
| | - Christine Artner
- Institute of Materials Chemistry, Vienna University of
Technology, Getreidemarkt 9, 1060Wien, Austria
| | - Ulrich Schubert
- Institute of Materials Chemistry, Vienna University of
Technology, Getreidemarkt 9, 1060Wien, Austria
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