1
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Bodappa N, Stepan S, Smith RDL. Analysis of Solid-State Reaction Mechanisms with Two-Dimensional Fourier Transform Infrared Correlation Spectroscopy. Inorg Chem 2021; 60:2304-2314. [PMID: 33507733 DOI: 10.1021/acs.inorgchem.0c03189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The utility of two-dimensional generalized correlation spectroscopy (2D-COS) for tracking complex solid-state reactions is demonstrated using infrared spectra acquired during a photochemically induced decomposition reaction. Eleven different thin films, consisting of six monometallic and five bimetallic 2-ethylhexanoate complexes, were tracked as a function of photolysis time. Overlapping peaks in the infrared fingerprint region are readily discriminated using 2D-COS, enabling individual vibrational components to be used to distinguish whether carboxylate ligands are free/ionic or bound in a chelating, bridging, or monodentate fashion. This classification enables the decomposition mechanism to be tracked for all 11 samples, revealing that ligands bound in monodentate and bridging fashions are first converted to chelates before being lost as volatile products for all samples. The magnitude of the measured first-order rate constants for loss of chelated ligands is found to correlate linearly to the asymmetric stretching frequency of monodentate ligands but exhibits a V shape when plotted against the electronegativity of the metal center. We propose that loss of chelated ligands proceeds via C-O scission for highly electronegative transition metals but M-O scission for transition metals with low electronegativity. These results establish 2D-COS as a powerful tool to deconvolute and correlate individual components, enabling mechanistic analysis of complex chemical reactions.
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Affiliation(s)
- Nataraju Bodappa
- Department of Chemistry, University of Waterloo, 200 University Avenue W., Waterloo, Ontario N2L 3G1, Canada
| | - Sarah Stepan
- Department of Chemistry, University of Waterloo, 200 University Avenue W., Waterloo, Ontario N2L 3G1, Canada
| | - Rodney D L Smith
- Department of Chemistry, University of Waterloo, 200 University Avenue W., Waterloo, Ontario N2L 3G1, Canada.,Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W., Waterloo, Ontario N2L 3G1, Canada
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2
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Refat MS, Bakare SB, Altalhi T. Synthesis, FTIR, and Raman Spectroscopic and Thermogravimetric
Analysis of UO2(II), ZrO(II), VO(II), and Th(IV) Valerate
Complexes. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363220120282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Synthesis of an optical catalyst for cracking contaminating dyes in the wastewater of factories using indium oxide in nanometer and usage in agriculture. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2019. [DOI: 10.2478/pjct-2019-0045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Herein, the photocatalytic degradation of the Congo Red (CR) and Crystal Violet (CV) dyes in an aqueous solution were discussed in the presence of an indium(III) oxide (In2O3) as optical catalyst efficiency. The caproate bidentate indium(III) precursor complex has been synthesized and well interpreted by elemental analysis, molar conductivity, Fourier transform infrared (FT-IR), UV-Vis, and thermogravimetric (TGA) with its differential thermogravimetric (DTG) studies. The microanalytical and spectroscopic assignments suggested that the associated of mononuclear complex with 1:3 molar ratio (M3+:ligand). Octahedral structure is speculated for this parent complex of the caproate anion, CH3(CH2)4COO− ligand. The In2O3 NPs with nanoscale range within 10–20 nm was synthesized by a simple, low cost and eco-friendly method using indium(III) caproate complex. Indium oxide nanoparticles were formed after calcination of precursor in static air at 600°C for 3 hrs. The structural, grain size, morphological and decolorization efficiency of the synthesized NPs were characterized using the FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and transmission electron microscopy (TEM) analyses. It was worthy mentioned that the prepared In2O3 NPs showed a good photodegradation properties against CR and CV organic dyes during 90 min.
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4
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Klai K, Soudani S, Jelsch C, Lefebvre F, Kaminsky W, Fujita W, Ben Nasr C, Kaabi K. Crystal structure, Hirshfeld surface analysis, and physicochemical studies of a new Cu(II) complex with 2-amino-4-methylpyrimidine. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Boulaoued A, Bantignies JL, Le Parc R, Goze-Bac C, Mésini P, Nguyen TTT, Al Ouahabi A, Lutz P, Guenet JM. Hybrid Fibrillar Xerogels with Unusual Magnetic Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13193-13199. [PMID: 27951692 DOI: 10.1021/acs.langmuir.6b03572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report on the preparation of a hybrid nanomaterial made up of 1D filaments of an antiferromagnetic self-assembling bicopper complex encapsulated in polymer nanofibrils. The encapsulation process is achieved through the heterogeneous nucleation of the growth of polymer fibrils obtained by thermoreversible gelation as shown by calorimetry experiments. Neutron scattering experiments confirm that the filaments of a bicopper complex retain their 1D character after encapsulation in the fibrils. Superconducting quantum interference device experiments show that the bicopper complex, originally in the gapped spin state in the 3D bulk mesophase, displays a gapless behavior once encapsulated. Extended absorption fine structure and infrared results further highlight the difference in the molecular arrangement of the bicopper complex between the bulk mesophase and the encapsulated state, which may account for the magnetic behavior. This material, which is largely disordered, differs totally from the usual magnetic systems where this effect is observed only on highly crystalline systems with long-range order. Also, this hybrid material is very easy to prepare from its basic constituents and can be further processed in many ways.
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Affiliation(s)
- Athmane Boulaoued
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
| | - Jean-Louis Bantignies
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier , 34095 Montpellier, France
| | - Rozenn Le Parc
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier , 34095 Montpellier, France
| | - Christophe Goze-Bac
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier , 34095 Montpellier, France
| | - Philippe Mésini
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
| | - Thi-Thanh-Tam Nguyen
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
| | - Abdelaziz Al Ouahabi
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
| | - Pierre Lutz
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
| | - Jean-Michel Guenet
- Institut Charles Sadron, CNRS UPR22-Université de Strasbourg , 23 rue du Loess, F-67034 Strasbourg Cedex 02, France
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6
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Rad M, Dehghanpour S, Fatehfard S, Gholamrezazadeh C, Mahmoudi A. Discrete molecular complex, one and two dimensional coordination polymer from cobalt, copper, zinc and (E)-4-hydroxy-3-((quinolin-8-ylimino)methyl)benzoic acid: Synthesis, structures and gas sensing property. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.12.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Marinho MV, Faria Marques L, Maia DS, Speziali NL, Yoshida MI, Janczak J, Hörner M, Cimini Corrêa C, Diniz R, Machado FC. Syntheses and Crystal Structures of Three Copper(II) Compounds with 2-Furoic Acid: A Dinuclear Paddle-wheel Unit and Two Coordination Polymers Supported by Pyridyl Donor Ligands. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Wang H, Song S, Hao J, Song A. Hydrogels Triggered by Metal Ions as Precursors of Network CuS for DNA Detection. Chemistry 2015; 21:12194-201. [PMID: 26179250 DOI: 10.1002/chem.201500919] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Indexed: 11/09/2022]
Abstract
The gelation behavior of lithocholate (LC(-) ) with different metal ions in water was investigated. The microstructures of hydrogels were determined to be three-dimensional (3D) networks of fibrous aggregates. The formation of fibrils was speculated to be mainly driven by the coordination between carboxylate of LC(-) and metal ions, accompanied by the assistance of noncovalent interactions such as electrostatic and hydrophobic interactions. The hydrogels, which can maintain the mechanical strength at higher temperature, exhibit thermal stability. Their gelation capability was enhanced with the increase in acidity. The hydrogels of LC(-) and Cu(2+) mixtures served as the precursors for producing network nanostructures of CuS nanoparticles. These new CuS networks exhibit high fluorescence quenching ability and can act as an effective fluorescent sensing platform for ssDNA detection.
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Affiliation(s)
- Haiqiao Wang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100 (P.R. China)
| | - Shasha Song
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100 (P.R. China)
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100 (P.R. China)
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100 (P.R. China).
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9
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Chen L, Kang J, Cui H, Wang Y, Liu L, Zhang L, Su CY. Homochiral coordination cages assembled from dinuclear paddlewheel nodes and enantiopure ditopic ligands: syntheses, structures and catalysis. Dalton Trans 2015; 44:12180-8. [DOI: 10.1039/c4dt03782k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A series of homochiral (Cu2)2L4 lantern cages have been synthesized, which can promote cyclopropanation with up to 99 : 1 diastereoselectivity.
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Affiliation(s)
- Lianfen Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Jian Kang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Hao Cui
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Yingxia Wang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Lan Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Li Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry and Chemical Engineering
- Sun yat-sen University
- Guangzhou
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10
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Jiang H, Zhang L, Jiang X, Bao X, Cheng Z, Zhu X. Facile “Living” Radical Polymerization of Methyl Methacrylate in the Presence of Iniferter Agents: Homogeneous and Highly Efficient Catalysis from Copper(II) Acetate. Macromol Rapid Commun 2014; 35:1332-9. [DOI: 10.1002/marc.201400204] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 05/16/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Hongjuan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Lifen Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Xiaowu Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Zhenping Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Xiulin Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
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11
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Mansour AM. What happens when (1H-benzimidazol-2-ylmethyl)-N-phenyl amine is added to copper(II) acetate? Spectroscopic, magnetic, and DFT studies. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.08.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Zhu Y, Yin P, Xiao F, Li D, Bitterlich E, Xiao Z, Zhang J, Hao J, Liu T, Wang Y, Wei Y. Bottom-up construction of POM-based macrostructures: coordination assembled paddle-wheel macroclusters and their vesicle-like supramolecular aggregation in solution. J Am Chem Soc 2013; 135:17155-60. [PMID: 24111901 DOI: 10.1021/ja408228b] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A bottom-up approach to obtain nanoclusters and large, uniform vesicle-like structures containing organic functionalized hexamolybdates in solution state were developed. Hexamolybdate functionalized carboxylic acid coordinated with two copper ions to form paddle-wheel tetrapolyoxometalate clusters with the features of macro-ions, which can spontaneously assemble into large, stable blackberry-type structures in suitable solvents, completing a hierarchical organization from small POM molecules to nanoscale complexes and then to supramolecular structures.
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Affiliation(s)
- Yi Zhu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P. R. China
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13
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Synthesis, crystal structures and electrochemical characterization of dinuclear paddlewheel copper(II) carboxylates. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.04.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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15
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Perec M, Baggio R, Sartoris RP, Santana RC, Peña O, Calvo R. Magnetism and Structure in Chains of Copper Dinuclear Paddlewheel Units. Inorg Chem 2009; 49:695-703. [DOI: 10.1021/ic902005m] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mireille Perec
- INQUIMAE−DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Ricardo Baggio
- Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499, 1650 San Martín, Buenos Aires, Argentina
| | - Rosana P. Sartoris
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, and INTEC (CONICET−UNL), Güemes 3450, 3000 Santa Fe, Argentina
| | - Ricardo C. Santana
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, CP 131, 74001−970 Goiânia (GO), Brazil
| | - Octavio Peña
- UMR 6226 CNRS, Sciences Chimiques de Rennes, Université de Rennes 1, 35042 Rennes, France
| | - Rafael Calvo
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, and INTEC (CONICET−UNL), Güemes 3450, 3000 Santa Fe, Argentina
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16
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Sagdinc S, Pir H. Spectroscopic and DFT studies of flurbiprofen as dimer and its Cu(II) and Hg(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 73:181-194. [PMID: 19285917 DOI: 10.1016/j.saa.2009.02.022] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2008] [Revised: 01/26/2009] [Accepted: 02/08/2009] [Indexed: 05/27/2023]
Abstract
The vibrational study in the solid state of flurbiprofen and its Cu(II) and Hg(II) complexes was performed by IR and Raman spectroscopy. The changes observed between the IR and Raman spectra of the ligand and of the complexes allowed us to establish the coordination mode of the metal in both complexes. The comparative vibrational analysis of the free ligand and its complexes gave evidence that flurbiprofen binds metal (II) through the carboxylate oxygen. The fully optimized equilibrium structure of flurbiprofen and its metal complexes was obtained by density functional B3LYP method by using LanL2DZ and 6-31 G(d,p) basis sets. The harmonic vibrational frequencies, infrared intensities and Raman scattering activities of flurbiprofen were calculated by density functional B3LYP methods by using 6-31G(d,p) basis set. The scaled theoretical wavenumbers showed very good agreement with the experimental values. The electronic properties of the free molecule and its complexes were also performed at B3LYP/6-31G(d,p) level of theory. Detailed interpretations of the infrared and Raman spectra of flurbiprofen are reported. The UV-vis spectra of flurbiprofen and its metal complexes were also investigated in organic solvents.
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Affiliation(s)
- Seda Sagdinc
- Department of Physics, Kocaeli University, Kocaeli, Turkey.
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17
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Wein AN, Cordeiro R, Owens N, Olivier H, Hardcastle KI, Eichler JF. Synthesis and characterization of Cu(II) paddlewheel complexes possessing fluorinated carboxylate ligands. J Fluor Chem 2009. [DOI: 10.1016/j.jfluchem.2008.10.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Wojciechowski K, Bitner A, Bernardinelli G, Brynda M. Azacrown ether–copper(ii)–hexanoate complexes. From monomer to 1-D metal organic polymer. Dalton Trans 2009:1114-22. [DOI: 10.1039/b811374b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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DeMartino MP, Chen K, Baran PS. Intermolecular enolate heterocoupling: scope, mechanism, and application. J Am Chem Soc 2008; 130:11546-60. [PMID: 18680297 DOI: 10.1021/ja804159y] [Citation(s) in RCA: 233] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This full account presents the background on, discovery of, and extensive insight that has been gained into the oxidative intermolecular coupling of two different carbonyl species. Optimization of this process has culminated in reliable and scalable protocols for the union of amides, imides, ketones, and oxindoles using soluble copper(II) or iron(III) salts as oxidants. Extensive mechanistic studies point to a metal-chelated single-electron-transfer process in the case of copper(II), while iron(III)-based couplings appear to proceed through a non-templated heterodimerization. This work presents the most in-depth findings on the mechanism of oxidative enolate coupling to date. The scope of oxidative enolate heterocoupling is extensive (40 examples) and has been shown to be efficient even on a large scale (gram-scale or greater). Finally, the method has been applied to the total synthesis of the unsymmetrical lignan lactone (-)-bursehernin and a medicinally important 2,3-disubstituted succinate derivative.
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Affiliation(s)
- Michael P DeMartino
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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20
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Refat MS, El-Korashy SA, Kumar DN, Ahmed AS. FTIR, magnetic, 1H NMR spectral and thermal studies of some chelates of caproic acid: inhibitory effect on different kinds of bacteria. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 70:217-33. [PMID: 17766172 DOI: 10.1016/j.saa.2007.07.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Revised: 06/24/2007] [Accepted: 07/03/2007] [Indexed: 05/17/2023]
Abstract
A convenient method for the preparation of complexes of the Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Zn2+, ZrO2+, UO2(2+), Zr4+ and Th4+ ions with caproic acid (Hcap) is reported and this has enabled 10 complexes of caproate anion to be formulated: [Cr(cap)3].5H2O, [Mn(cap)2(H2O)2], [Fe(cap)3].12H2O, [Co(cap)2(H2O)2].4H2O, [Ni(cap)2(H2O)2].3H2O, [Zn(cap)2], [ZrO(cap)2].3H2O, [UO2(cap)(NO3)], [Zr(cap)2(Cl)2] and [Th(cap)4]. These new complexes were synthesized and characterized by elemental analysis, molar conductivity, magnetic measurements, spectral methods (mid infrared, 1H NMR and UV-vis spectra) and simultaneous thermal analysis (TG and DTG) techniques. It has been found from the elemental analysis as well as thermal studies that the caproate ligand behaves as bidentate ligand and forming chelates with 1:1 (metal:ligand) stoichiometry for UO2(2+), 1:2 for (Mn2+, Co2+, Ni2+, Zn2+, ZrO2+ and Zr4+), 1:3 stoichiometry for (Cr3+ and Fe3+) and 1:4 for Th4+ caproate complexes, respectively, as bidentate chelating. The molar conductance measurements proved that the caproate complexes are non-electrolytes. The kinetic thermodynamic parameters such as: E*, DeltaH*, DeltaS* and DeltaG* are estimated from the DTG curves. The antibacterial activity of the caproic acid and their complexes was evaluated against some gram positive/negative bacteria.
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Affiliation(s)
- Moamen S Refat
- Department of Chemistry, Faculty of Education, Port Said, Suez Canal University, Mohamed Ali Street, Port Said, Egypt.
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21
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Youngme S, Cheansirisomboon A, Danvirutai C, Pakawatchai C, Chaichit N, Engkagul C, van Albada GA, Costa JS, Reedijk J. Three new polynuclear tetracarboxylato-bridged copper(II) complexes: Syntheses, X-ray structure and magnetic properties. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.02.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Mechanism of Cu(II) transport through permeation liquid membranes using azacrown ether and fatty acid as carrier. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.01.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Youngme S, Cheansirisomboon A, Danvirutai C, Pakawatchai C, Chaichit N. Polynuclear paddle-wheel copper(II) propionate with di-2-pyridylamine or 1,10-phenanthroline: Preparation, characterization and X-ray structure. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2007.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Classen T, Lingenfelder M, Wang Y, Chopra R, Virojanadara C, Starke U, Costantini G, Fratesi G, Fabris S, de Gironcoli S, Baroni S, Haq S, Raval R, Kern K. Hydrogen and Coordination Bonding Supramolecular Structures of Trimesic Acid on Cu(110). J Phys Chem A 2007; 111:12589-603. [DOI: 10.1021/jp076037o] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Klaus Kern
- Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany, and Institut de Physique des Nanostructures, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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25
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Nockemann P, Thijs B, Pittois S, Thoen J, Glorieux C, Van Hecke K, Van Meervelt L, Kirchner B, Binnemans K. Task-specific ionic liquid for solubilizing metal oxides. J Phys Chem B 2007; 110:20978-92. [PMID: 17048916 DOI: 10.1021/jp0642995] [Citation(s) in RCA: 248] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protonated betaine bis(trifluoromethylsulfonyl)imide is an ionic liquid with the ability to dissolve large quantities of metal oxides. This metal-solubilizing power is selective. Soluble are oxides of the trivalent rare earths, uranium(VI) oxide, zinc(II) oxide, cadmium(II) oxide, mercury(II) oxide, nickel(II) oxide, copper(II) oxide, palladium(II) oxide, lead(II) oxide, manganese(II) oxide, and silver(I) oxide. Insoluble or very poorly soluble are iron(III), manganese(IV), and cobalt oxides, as well as aluminum oxide and silicon dioxide. The metals can be stripped from the ionic liquid by treatment of the ionic liquid with an acidic aqueous solution. After transfer of the metal ions to the aqueous phase, the ionic liquid can be recycled for reuse. Betainium bis(trifluoromethylsulfonyl)imide forms one phase with water at high temperatures, whereas phase separation occurs below 55.5 degrees C (temperature switch behavior). The mixtures of the ionic liquid with water also show a pH-dependent phase behavior: two phases occur at low pH, whereas one phase is present under neutral or alkaline conditions. The structures, the energetics, and the charge distribution of the betaine cation and the bis(trifluoromethylsulfonyl)imide anion, as well as the cation-anion pairs, were studied by density functional theory calculations.
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Affiliation(s)
- Peter Nockemann
- Laboratory of Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, Belgium
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Refat MS, Kumar DN, De Farias RF. Spectroscopic and thermal investigations of Cu(II), Zn(II), Cd(II), Pb(II) and Al(III) caproates. J COORD CHEM 2007. [DOI: 10.1080/00958970600662932] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Moamen S. Refat
- a Faculty of Education, Department of Chemistry , Port Said, Suez Canal University , Port Said, Egypt
| | - Deo Nandan Kumar
- b Department of Chemistry , University of Delhi , Delhi 110007, India
| | - Robson F. De Farias
- c Programa de Pós-Graduação em Química, Departamento de Química , Universidade Federal do Rio Grande do Norte , CP 1662, 59078-970 Natal, Rio Grande do Norte, Brazil
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Mishra S, Daniele S, Hubert-Pfalzgraf LG. Metal 2-ethylhexanoates and related compounds as useful precursors in materials science. Chem Soc Rev 2007; 36:1770-87. [DOI: 10.1039/b614334m] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Classen T, Fratesi G, Costantini G, Fabris S, Stadler FL, Kim C, de Gironcoli S, Baroni S, Kern K. Templated Growth of Metal-Organic Coordination Chains at Surfaces. Angew Chem Int Ed Engl 2005; 44:6142-5. [PMID: 16175528 DOI: 10.1002/anie.200502007] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas Classen
- Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany.
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Classen T, Fratesi G, Costantini G, Fabris S, Stadler FL, Kim C, de Gironcoli S, Baroni S, Kern K. Templated Growth of Metal-Organic Coordination Chains at Surfaces. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200502007] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Kozlevčar B, Leban I, Petrič M, Petriček S, Roubeau O, Reedijk J, Šegedin P. Phase transitions and antiferromagnetism in copper(II) hexanoates: a new tetranuclear type of copper carboxylate paddle-wheel association. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.06.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Trinchero A, Bonora S, Tinti A, Fini G. Spectroscopic behavior of copper complexes of nonsteroidal anti-inflammatory drugs. Biopolymers 2004; 74:120-4. [PMID: 15137108 DOI: 10.1002/bip.20057] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The proposed curative properties of Cu-based nonsteroidal anti-inflammatory drugs (NSAIDs) have led to the development of numerous Cu(II) complexes of NSAIDs with enhanced anti-inflammatory activity. Crystalline complexes, Cu(II)-NSAID (ibuprofen, naproxen, tolmetin, and diclofenac), with a carboxylic function have been studied by means of infrared and Raman spectroscopy. All NSAIDs bind the metal through the carboxylate group. On the basis of the comparison between the wavenumber of the COO(-) group vibrations and Delta nu (nu(asimm)COO(-) - nu(simm)COO(-)) between Na salts and Cu(II) complexes, conclusions on the probable structure of the complexes have been drawn. The spectroscopic data support the formation of dimeric [Cu(2)L(4)(H(2)O)(2)] complexes in which the COO(-) group behaves as a bridging bidentate ligand. The low wavenumber region of the Raman spectrum provided information on Cu-O and Cu-Cu bonds in the complexes. Thermogravimetric results gave further support to the vibrational data.
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Affiliation(s)
- A Trinchero
- Alma Mater Studiorum Bologna University, Department of Biochemistry, via Belmeloro 8/2, Bologna 40126, Italy
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32
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Marinho MV, Yoshida MI, Guedes KJ, Krambrock K, Bortoluzzi AJ, Hörner M, Machado FC, Teles WM. Synthesis, Crystal Structure, and Spectroscopic Characterization of trans-Bis[(μ-1,3-bis(4-pyridyl)propane)(μ-(3-thiopheneacetate-O))(3-thiopheneacetate-O)]dicopper(II), {[Cu2(O2CCH2C4H3S)4μ-(BPP)2]}n: From a Dinuclear Paddle-Wheel Copper(II) Unit to a 2-D Coordination Polymer Involving Monatomic Carboxylate Bridges. Inorg Chem 2004; 43:1539-44. [PMID: 14966992 DOI: 10.1021/ic035251y] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
From the reaction between a dinuclear paddle-wheel carboxylate, namely [Cu2mu-(O2CCH2C4H3S)4] (1), and the flexible ligand 1,3-bis(4-pyridyl)propane (BPP) a neutral 2-D coordination polymer [[Cu2(O2CCH2C4H3S)4mu-(BPP)2]]n (2) was obtained. Compounds 1 and 2 were characterized by means of elemental analysis, thermal analysis (TG/DSC), vibrational spectroscopy, and electron paramagnetic resonance (EPR). The crystal structure of 2 reveals that each Cu(II) is coordinated by two nitrogen atoms from different BPP ligands and two 3-thiopheneacetate groups within a distorted square planar geometry in a trans-[N, N, O, O] arrangement. The BPP ligand adopts a TG conformation bridging two copper centers giving rise to a 1-D sinusoidal polymeric chain along the crystallographic c axis. Adjacent 1-D chains are extended into a 2-D coordination network through pairs of monatomic carboxylate bridges in direction of the b axis. This bridging mode affords centrosymmetric dimeric units Cu2O2, and therefore, the copper ions are involved in a CuN2O2O' chromophore displaying a (4 + 1) square pyramidal coordination in the resultant 2-D polymeric network. The polycrystalline X-band EPR spectrum of 2 at room temperature is characteristic of a triplet state with nonnegligible zero-field splitting in agreement with the crystal structure. Crystal data for 2: monoclinic, space group P2(1)/c, a = 9.4253(10) A, b = 10.9373(10) A, c = 23.6378(10) A, beta = 98.733(4) degrees, Z = 2.
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Affiliation(s)
- Maria Vanda Marinho
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, 36036-330 Juiz de Fora, MG, Brazil
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Lin N, Dmitriev A, Weckesser J, Barth JV, Kern K. Real-Time Single-Molecule Imaging of the Formation and Dynamics of Coordination Compounds. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/ange.200290045] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Lin N, Dmitriev A, Weckesser J, Barth JV, Kern K. Real-time single-molecule imaging of the formation and dynamics of coordination compounds. Angew Chem Int Ed Engl 2002; 41:4779-83. [PMID: 12481356 DOI: 10.1002/anie.200290046] [Citation(s) in RCA: 134] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nian Lin
- Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany.
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