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Kubiak B, Muzioł T, Jabłoński M, Radtke A, Piszczek P. Investigation of titanium(IV)-oxo complexes stabilized with α-hydroxy carboxylate ligands: structural analysis and DFT studies. Dalton Trans 2024; 53:14457-14468. [PMID: 39148380 DOI: 10.1039/d4dt01710b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
This paper explores the findings on the structures and physicochemical properties of titanium-oxo complexes (TOCs) stabilized by 9-hydroxy-9-fluorenecarboxylate ligands. Two complexes, with the overall formulas [Ti4O(OiPr)10(O3C14H8)2] (1) and [Ti6O4(OiPr)2(O3C14H8)4(O2CEt)6] (2), have been synthesized. The structures of the isolated crystals (1 and 2) were determined using single-crystal X-ray diffraction. Molecular structure analysis of the crystals also employed vibrational spectroscopic techniques (IR and Raman), UV-Vis diffuse reflectance spectroscopy (UV-Vis-DRS), and powder X-ray diffraction (XRD). Density functional theory (DFT) was utilized to elucidate the electronic structures of these complexes. Furthermore, the theoretical charge distribution in 1 and 2 and their reactivity were calculated. The results of these investigations suggest that the reactivity of 2 is significantly greater than that of 1.
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Affiliation(s)
- Barbara Kubiak
- Department of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
| | - Tadeusz Muzioł
- Department of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
| | - Mirosław Jabłoński
- Department of Quantum Chemistry and Atomic Spectroscopy, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Aleksandra Radtke
- Department of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
| | - Piotr Piszczek
- Department of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
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2
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Luo CY, Ma LJ, Liu W, Tan YC, Wang RN, Hou JL, Zhu QY. Topotactic Conversion of Titanium-Oxo Clusters to a Stable TOC-Based Metal-Organic Framework with the Selective Adsorption of Cationic Dyes. Inorg Chem 2024; 63:5961-5971. [PMID: 38494631 DOI: 10.1021/acs.inorgchem.3c04608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Titanium-oxo cluster (TOC)-based metal-organic frameworks (MOFs) have received considerable attention in recent years due to their ability to expand the application of TOCs to fields that require highly stable frameworks. Herein, a new cyclic TOC formulated as [Ti6O6(OiPr)8(TTFTC)(phen)2]2 (1, where TTFTC = tetrathiafulvalene tetracarboxylate and phen = phenanthroline) was crystallographically characterized. TOC 1 takes a rectangular ring structure with two phen-modified Ti6 clusters as the width and two TTFTC ligands as the length. An intracluster ligand-to-ligand (TTF-to-phen) charge transfer in 1 was found for TOCs for the first time. Compound 1 undergoes topotactic conversion to generate stable TOC-MOF P1, in which the rectangular framework in 1 formed by a TOC core and ligands is retained, as verified by comprehensive characterization. P1 shows an efficient and rapid selective adsorption capacity for cationic dyes. The experimental adsorption capacity (qex) of P1 reaches a value of up to 789.2 mg/g at 298 K for the crystal violet dye, which is the highest among those of various adsorbents. The calculated models are first used to reveal the structure-property relationship of the cyclic host to different guest dyes. The results further confirmed the host MOF structure of P1.
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Affiliation(s)
- Chen-Yue Luo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Li-Jun Ma
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wei Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yu-Chuan Tan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Ruo-Nan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jin-Le Hou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Qin-Yu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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3
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Svensson F, Österlund L. One‐step synthesis of sulfate‐modified titania nanoparticles with surface acidic and sustained photocatalytic properties via solid‐state thermolysis of titanyl sulfate. ChemCatChem 2022. [DOI: 10.1002/cctc.202200682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fredric Svensson
- Uppsala Universitet Teknisk-naturvetenskapliga vetenskapsomradet: Uppsala Universitet Teknisk-naturvetenskapliga fakulteten Deptarment of Materials Science and Engineering Läggerhyddsvägen 1 75103 Uppsala SWEDEN
| | - Lars Österlund
- Uppsala University: Uppsala Universitet Department of Materials Science and Engineering P.O. Box 35Lägerhyddsvägen 1 75103 Uppsala SWEDEN
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4
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Jain K, Kanchanawong P, Sheetz MP, Zhou X, Cai H, Changede R. Ligand functionalization of titanium nanopattern enables the analysis of cell-ligand interactions by super-resolution microscopy. Nat Protoc 2022; 17:2275-2306. [PMID: 35896742 DOI: 10.1038/s41596-022-00717-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 04/26/2022] [Indexed: 12/19/2022]
Abstract
The spatiotemporal aspects of early signaling events during interactions between cells and their environment dictate multiple downstream outcomes. While advances in nanopatterning techniques have allowed the isolation of these signaling events, a major limitation of conventional nanopatterning methods is its dependence on gold (Au) or related materials that plasmonically quench fluorescence and, thus, are incompatible with super-resolution fluorescence microscopy. Here we describe a novel method that integrates nanopatterning with single-molecule resolution fluorescence imaging, thus enabling mechanistic dissection of molecular-scale signaling events in conjunction with nanoscale geometry manipulation. Our method exploits nanofabricated titanium (Ti) whose oxide (TiO2) is a dielectric material with no plasmonic effects. We describe the surface chemistry for decorating specific ligands such as cyclo-RGD (arginine, glycine and aspartate: a ligand for fibronectin-binding integrins) on TiO2 nanoline and nanodot substrates, and demonstrate the ability to perform dual-color super-resolution imaging on these patterns. Ti nanofabrication is similar to other metallic materials like Au, while the functionalization of TiO2 is relatively fast, safe, economical, easy to set up with commonly available reagents, and robust against environmental parameters such as humidity. Fabrication of nanopatterns takes ~2-3 d, preparation for functionalization ~1.5-2 d, and functionalization 3 h, after which cell culture and imaging experiments can be performed. We suggest that this method may facilitate the interrogation of nanoscale geometry and force at single-molecule resolution, and should find ready applications in early detection and interpretation of physiochemical signaling events at the cell membrane in the fields of cell biology, immunology, regenerative medicine, and related fields.
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Affiliation(s)
- Kashish Jain
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore
| | - Pakorn Kanchanawong
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore.,Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Michael P Sheetz
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore.,Molecular Mechanomedicine Program, Biochemistry and Molecular Biology Department, University of Texas Medical Branch, Galveston, TX, USA
| | - Xianjing Zhou
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA
| | - Haogang Cai
- Tech4Health Institute and Department of Radiology, NYU Langone Health, New York, NY, USA.
| | - Rishita Changede
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore. .,TeOra Pte. Ltd, Singapore, Singapore.
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5
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Fu MY, Wang HY, Zhai HL, Zhu QY, Dai J. A Convenient Procedure for Preparing BiOX-TiO 2 Photoelectrocatalytic Electrodes from a Titanium-Oxo Compound-Modified Carbon Fiber Cloth. Inorg Chem 2022; 61:4024-4032. [PMID: 35179867 DOI: 10.1021/acs.inorgchem.1c03779] [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
Photoelectrocatalysis (PEC) has shown great advantages in sustainable organic synthesis and wastewater treatment because the PEC process can minimize electron-hole recombination, thereby improving the photocatalytic performance. Here, we report a convenient procedure for preparing immobilized BiOX-TiO2 photoelectrocatalytic electrodes from a titanium-oxo compound (TOC)-modified carbon fiber cloth (CFC). Crystalline TOCs composed of Ti12 cations and bismuth halide anions, [Ti12O14(OiPr)18][Bi3Br11(THF)2] (1) and [Ti12O14(OiPr)18][Bi4I14(THF)2] (2), were grown on CFC. Taking advantage of the easy hydrolysis of the titanium-oxo cation and bismuth halide anion, we could easily transform these CFC-immobilized crystals into BiOX-TiO2/CFC (X = Br or I) photocatalysts, which facilitates recycling of the catalysts. The photocatalytic dye degradation test showed that the efficiency did not decrease obviously after 10 photocatalytic cycles. Using BiOX-TiO2-modified CFC as electrodes, electrocatalysis (EC), photocatalysis (PC), and PEC were examined. PEC showed an attractive synergistic effect of EC and PC. These TOC-modified CFCs would be potential candidates for catalytic electrodes for sustainable wastewater purification.
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Affiliation(s)
- Meng-Yuan Fu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hao-Yu Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hang-Ling Zhai
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Qin-Yu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jie Dai
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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6
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Sol–gel reaction of titanium phosphonate alkoxide cluster. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Long-chain ligand design in creating magnetic nano adsorbents for separation of REE from LTM. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Svensson F, Cojocaru B, Qiu Z, Parvulescu V, Edvinsson T, Seisenbaeva GA, Tiseanu C, Kessler VG. Rare-Earth-Modified Titania Nanoparticles: Molecular Insight into Synthesis and Photochemical Properties. Inorg Chem 2021; 60:14820-14830. [PMID: 34515470 PMCID: PMC8493554 DOI: 10.1021/acs.inorgchem.1c02134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Indexed: 11/28/2022]
Abstract
A molecular precursor approach to titania (anatase) nanopowders modified with different amounts of rare-earth elements (REEs: Eu, Sm, and Y) was developed using the interaction of REE nitrates with titanium alkoxides by a two-step solvothermal-combustion method. The nature of an emerging intermetallic intermediate was revealed unexpectedly for the applied conditions via a single-crystal study of the isolated bimetallic isopropoxide nitrate complex [Ti2Y(iPrO)9(NO3)2], a nonoxo-substituted compound. Powders of the final reaction products were characterized by powder X-ray diffraction, scanning electron microscopy-energy-dispersive spectroscopy, Fourier transform infrared, X-ray photoelectron spectroscopy, Raman spectroscopy, and photoluminescence (PL). The addition of REEs stabilized the anatase phase up to ca. 700 °C before phase transformation into rutile became evident. The photocatalytic activity of titania modified with Eu3+ and Sm3+ was compared with that of Degussa P25 titania as the control. PL studies indicated the incorporation of Eu and Sm cations into titania (anatase) at lower annealing temperatures (500 °C), but an exclusion to the surface occurred when the annealing temperature was increased to 700 °C. The efficiency of the modified titania was inferior to the control titania while illuminated within narrow wavelength intervals (445-465 and 510-530 nm), but when subjected to a wide range of visible radiation, the Eu3+- and Sm3+-modified titania outperformed the control, which was attributed both to doping of the band structure of TiO2 with additional energy levels and to the surface chemistry of the REE-modified titania.
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Affiliation(s)
- Fredric
G. Svensson
- Department
of Molecular Sciences, Swedish University
of Agricultural Sciences, Box 7015, Uppsala SE-75007, Sweden
| | - Bogdan Cojocaru
- Department
of Chemistry, University of Bucharest, B-dul Regina Elisabeta, No. 4−12, Bucharest RO-030018, Romania
| | - Zhen Qiu
- Department
of Materials Science and Engineering, Uppsala
University, Box 53, Uppsala SE-75103, Sweden
| | - Vasile Parvulescu
- Department
of Chemistry, University of Bucharest, B-dul Regina Elisabeta, No. 4−12, Bucharest RO-030018, Romania
| | - Tomas Edvinsson
- Department
of Materials Science and Engineering, Uppsala
University, Box 53, Uppsala SE-75103, Sweden
| | - Gulaim A. Seisenbaeva
- Department
of Molecular Sciences, Swedish University
of Agricultural Sciences, Box 7015, Uppsala SE-75007, Sweden
| | - Carmen Tiseanu
- National
Institute for Laser, Plasma and Radiation Physics (NILPR), Bucharest-Magurele RO-76900, Romania
| | - Vadim G. Kessler
- Department
of Molecular Sciences, Swedish University
of Agricultural Sciences, Box 7015, Uppsala SE-75007, Sweden
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9
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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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10
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Sanchez Mendez M, Jia Z, Traore M, Ben Amar M, Nikravech M, Kanaev A. Nucleation and growth of mixed vanadium-titanium oxo-alkoxy nanoparticles in sol-gel synthesis. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Svensson FG, Seisenbaeva GA, Kotov NA, Kessler VG. Self-Assembly of Asymmetrically Functionalized Titania Nanoparticles into Nanoshells. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4856. [PMID: 33138284 PMCID: PMC7662802 DOI: 10.3390/ma13214856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 01/08/2023]
Abstract
Titania (anatase) nanoparticles were anisotropically functionalized in water-toluene Pickering emulsions to self-assemble into nanoshells with diameters from 500 nm to 3 μm as candidates for encapsulation of drugs and other compounds. The water-phase contained a hydrophilic ligand, glucose-6-phosphate, while the toluene-phase contained a hydrophobic ligand, n-dodecylphosphonic acid. The addition of a dilute sodium alginate suspension that provided electrostatic charge was essential for the self-limited assembly of the nanoshells. The self-assembled spheres were characterized by scanning electron microscopy, elemental mapping, and atomic force microscopy. Drug release studies using tetracycline suggest a rapid release dominated by surface desorption.
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Affiliation(s)
- Fredric G. Svensson
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
| | - Gulaim A. Seisenbaeva
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
| | - Nicholas A. Kotov
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109, USA
| | - Vadim G. Kessler
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
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