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Fang D, Yang X, Li J, Zhang Z, Gao Y, Xiao C. Preorganization Effects on Eu(III) Ion Coordination by Dipyridyl-Phenanthroline Ligands: A Combined Experimental and Theoretical Analysis. Inorg Chem 2024; 63:8171-8179. [PMID: 38655575 DOI: 10.1021/acs.inorgchem.4c00395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Although 1,10-phenanthroline has been proven to hold a strong complexing capacity for f-block elements and their derivatives have been applied in many fields, research on more highly or completely rigid phenanthroline ligands is still rare due to the challenging syntheses. Here, we reported three tetradentate ligands 2,9-di(pyridin-2-yl)-1,10-phenanthroline (L1), 12-(pyridin-2-yl)-5,6-dihydroquinolino[8,7b][1,10]phenanthroline (L2), and 5,6,11,12-tetrahydrobenzo[2,1-b:3,4-b']bis([1,10]phenanthroline) (L3) with increasing preorganization on the side chain; among which, L3 is fully preorganized. Their complexation reactions with Eu(III) were systematically investigated by electrospray ionization mass spectrometry (ESI-MS), UV-vis titrations, and single-crystal structures. It is found that all three ligands form only 1:1 M/L complexes with Eu(III). The single-crystal structures revealed that the three ligands hold similar coordination modes, while their stability constants determined by UV-vis titrations were L3 (4.80 ± 0.01) > L2 (4.38 ± 0.01) > L1 (3.88 ± 0.01). This trend is supported not only by the thermodynamic stability of rigid ligands compared to free ligands but also by the conclusion that rigid ligands exhibit faster reaction rates (lower energy barrier) than free ligands kinetically. This work is helpful in providing theoretical guidance for the subsequent development of highly preorganized chelating ligands with strong coordination ability and high selectivity for f-block elements.
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Affiliation(s)
- Dong Fang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Xiaofan Yang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Jiarui Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China
| | - Zhiyuan Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China
| | - Yang Gao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
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2
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Wang S, Yang X, Liu Y, Xu L, Xu C, Xiao C. Enhancing the Selectivity of Trivalent Actinide over Lanthanide Using Asymmetrical Phenanthroline Diamide Ligands. Inorg Chem 2024; 63:3063-3074. [PMID: 38285631 DOI: 10.1021/acs.inorgchem.3c03997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
Phenanthroline diamide ligands have been widely used in the separation of trivalent actinides and lanthanides, but little research has focused on extractants with asymmetrical substitutes. Two novel asymmetrical phenanthroline-based ligands N2,N2,N9-triethyl-N9-tolyl-1,10-phenanthroline-2,9-dicarboxamide (DE-ET-DAPhen) and N2-ethyl-N9,N9-dioctyl-N2-tolyl-1,10-phenanthroline-2,9-dicarboxamide (DO-ET-DAPhen) were first synthesized in this work, whose extraction ability and complexation mechanism to trivalent actinides [An(III)] and lanthanides [Ln(III)] were systematically investigated. The ligands dissolved in n-octanol exhibit good extraction ability and high selectivity toward Am(III) in acidic solutions. The complexation mechanism of the ligands with Ln(III) in solution and solid state was analyzed using slope analysis, 1H NMR spectrometric titration, ESI-MS, and calorimetric titration. It is revealed that the ligands complex with Am(III)/Eu(III) with 1:1 stoichiometry. The stability constant (log β) of the complexation reaction of Eu(III) with DE-ET-DAPhen determined by UV-vis spectrophotometric and calorimetric titration is higher than that of DO-ET-DAPhen, indicating the stronger complexation ability of DE-ET-DAPhen. Meanwhile, the calorimetric titration results show that the complexation process is exothermic with a decreased entropy. The structures of 1:1 complexes of Eu(III) and Nd(III) with DE-ET-DAPhen were analyzed through single-crystal X-ray diffraction. This work proves that ligands containing asymmetrical functional groups are promising for An(III)/Ln(III) separation, which shows great significance in efficient extractants designed for the spent nuclear fuel reprocessing process.
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Affiliation(s)
- Shihui Wang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiaofan Yang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yaoyang Liu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Lei Xu
- Institute of Nuclear-Agricultural Science, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou 310058, China
| | - Chao Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou 310058, China
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3
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Wang X, Servis MJ. Using Metadynamics to Reveal Extractant Conformational Free Energy Landscapes. J Phys Chem B 2024; 128:263-272. [PMID: 38095622 DOI: 10.1021/acs.jpcb.3c06637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Understanding the impact of extractant functionalization on metal-binding energetics in liquid-liquid extraction is essential to guide the development of better separation processes. Traditionally, computational extractant design uses electronic structure calculations on metal-ligand clusters to determine the metal-binding energy of the lowest energy state. Although highly accurate, this approach does not account for all of the relevant physics encountered under experimental conditions. Such methodologies often neglect entropic contributions such as temperature effects and ligand flexibility, in addition to approximating solvent-extractant interactions with implicit solvent models. In this study, we use classical molecular dynamics simulations with an advanced sampling method, metadynamics, to map out extractant molecule conformational free energies in the condensed phase. We generate the complete conformational landscape in solution for a family of bidentate malonamide-based extractants with different functionalizations of the headgroup and the side chains. In particular, we show how such alkyl functionalization reshapes the free energy landscape, affecting the free energy penalty of organizing the extractant into the cis-like metal-binding conformation from the trans-like conformation of the free extractant in solution. Specifically, functionalizing alkyl tails to the center of the headgroup has a greater influence on increasing molecular rigidity and disfavoring the binding conformation than functionalizing side chains. These findings are consistent with trends in metal-binding energetics based on experimentally reported distribution ratios. We also consider a different bidentate extractant molecule, carbamoylmethylphosphine oxide, and show how the choice of solvent can further reshape the conformational energetic landscape. This study demonstrates the feasibility of using molecular dynamics simulations with advanced sampling techniques to investigate extractant conformational energetics in solution, which, more broadly, will enable extractant design that accounts for entropic effects and explicit solvation.
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Affiliation(s)
- Xiaoyu Wang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
| | - Michael J Servis
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
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Wang H, Gao P, Cui T, Wang D, Liu J, He H, Chen Z, Jin Q, Guo Z. New asymmetric tetradentate phenanthroline chelators with pyrazole and amide groups for complexation and solvent extraction of Ln(III)/Am(III). Dalton Trans 2024; 53:601-611. [PMID: 38063670 DOI: 10.1039/d3dt03194b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
To tune the complexation and solvent extraction performance of the ligands with a 1,10-phenanthroline core for trivalent actinides (An3+) and lanthanides (Ln3+), we synthesized two new asymmetric tetradentate ligands with pyrazole and amide groups, i.e., L1 (N,N-diethyl-9-(5-ethyl-1H-pyrazol-3-yl)-1,10-phenanthroline-2-carboxamide) and its analogue L2 with longer alkyl chains (N,N-dihexyl). The complexation of the ligands with Ln3+ was confirmed by 1H NMR titration and X-ray crystallography, and stability constants were measured in methanol by spectrophotometric titration. The asymmetric ligands exhibited an improved performance in terms of selective solvent extraction of Am3+ over Eu3+ in strongly acidic solutions compared to their symmetric analogues. The improved selectivity of the asymmetric ligands was interpreted theoretically by density functional theory simulations. This study implies that combining different functional groups to construct asymmetric ligands may be an efficient way to tune ligand performance with regard to An3+ separation from Ln3+.
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Affiliation(s)
- Haolong Wang
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Pengyuan Gao
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Tengfei Cui
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Dongqi Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jinping Liu
- Radiochemistry Department, China Institute of Atomic Energy, Beijing 102413, China
| | - Hui He
- Radiochemistry Department, China Institute of Atomic Energy, Beijing 102413, China
| | - Zongyuan Chen
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Qiang Jin
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Zhijun Guo
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
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Kanahashi K, Urushihara M, Yamaguchi K. Machine learning-based analysis of overall stability constants of metal-ligand complexes. Sci Rep 2022; 12:11159. [PMID: 35879384 PMCID: PMC9314427 DOI: 10.1038/s41598-022-15300-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/22/2022] [Indexed: 11/09/2022] Open
Abstract
The stability constants of metal(M)-ligand(L) complexes are industrially important because they affect the quality of the plating film and the efficiency of metal separation. Thus, it is desirable to develop an effective screening method for promising ligands. Although there have been several machine-learning approaches for predicting stability constants, most of them focus only on the first overall stability constant of M-L complexes, and the variety of cations is also limited to less than 20. In this study, two Gaussian process regression models are developed to predict the first overall stability constant and the n-th (n > 1) overall stability constants. Furthermore, the feature relevance is quantitatively evaluated via sensitivity analysis. As a result, the electronegativities of both metal and ligand are found to be the most important factor for predicting the first overall stability constant. Interestingly, the predicted value of the first overall stability constant shows the highest correlation with the n-th overall stability constant of the corresponding M-L pair. Finally, the number of features is optimized using validation data where the ligands are not included in the training data, which indicates high generalizability. This study provides valuable insights and may help accelerate molecular screening and design for various applications.
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Affiliation(s)
- Kaito Kanahashi
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki, 311-0102, Japan.,Department of Applied Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Makoto Urushihara
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki, 311-0102, Japan
| | - Kenji Yamaguchi
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki, 311-0102, Japan.
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Zhang WJ, Wang C, Wang K, Zhang P, Hu SX. The stability and chemical bonding of a series tridentate ligand-actinyl complexes: [AnO2(L)2]2+ (An: U and Am). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fultz EL, Bart Jones S, Ivanov AS, Bryantsev VS, Dai S, Hancock RD. Two Ligands of Interest in Recovering Uranium from the Oceans: The Correct Formation Constants of the Uranyl(VI) Cation with 2,2'-Bipyridyl-6,6'-dicarboxylic Acid and 1,10-Phenanthroline-2,9-dicarboxylic Acid. Inorg Chem 2022; 61:9960-9967. [PMID: 35708258 DOI: 10.1021/acs.inorgchem.2c00775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ligands BDA (2,2'-bipyridyl-6,6'-dicarboxylic acid) and PDA (1,10-phenanthroline-2,9-dicarboxylic acid) are of interest as functional group types for ion-exchange materials for extracting uranium from the oceans, reported in a previous paper for PDA Lashley, M. A. ( Inorg. Chem. 2016 55 10818 10829). Yang, Y. ( Inorg. Chem. 2019, 58, 6064 6074) have published what they claim to be a more accurate result for the formation of the UO22+/PDA complex of log K1 = 22.84 compared with our reported value of log K1 = 16.5, as well as log K1 = 21.52 for the BDA complex. The determination of log K1 for the PDA and BDA complexes with the UO22+ cation was carried out by Yang et al. using a competition reaction between DTPA (diethylenetriamine pentaacetic acid) and BDA or PDA, monitoring the absorbance due to the BDA and PDA ligands. This competition method using absorbance versus pH titrations was developed for determining the formation constants of the complexes of several polypyridyl ligands plus PDA complexes of metal ions, which were too stable for log K determination by competition with protons. A key feature of such titrations is that in the competition reaction, the displacement of the pyridyl donor ligand (e.g., PDA) by the competing ligand (e.g., DTPA), the absorbance spectrum of the displaced pyridyl donor ligand should be observed. Competing ligands used to date have been EDTA (ethylenediamine tetraacetic acid), DTPA, or the hydroxide ion. In the study of Yang et al., no such displaced PDA or BDA was apparent in the absorbance spectra in their titrations so that their reported log K1 values have no validity. Their log K1 values are so much higher than log K1 for the uranyl DTPA complex (∼13.6) that DTPA could not possibly displace BDA or PDA from the uranyl cation, and a competition reaction could not possibly occur. We report the correct value of log K1 = 15.4 (ionic strength = zero) for the uranyl BDA complex, to illustrate the correct determination of such a constant by a competition reaction between BDA and hydroxide, showing how the characteristic absorbance spectrum for a BDA complex, here the UO22+ complex, disappears, and the distinctive absorbance spectrum of the free nonprotonated BDA ligand appears as the pH is increased, and BDA is displaced by the hydroxide ion.
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Affiliation(s)
- Erica L Fultz
- Department of Chemistry and Biochemistry, University of North Carolina, Wilmington, North Carolina 28403, United States
| | - S Bart Jones
- Department of Chemistry and Biochemistry, University of North Carolina, Wilmington, North Carolina 28403, United States
| | - Alexander S Ivanov
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831-6119, United States
| | - Vyacheslav S Bryantsev
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831-6119, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831-6119, United States
| | - Robert D Hancock
- Department of Chemistry and Biochemistry, University of North Carolina, Wilmington, North Carolina 28403, United States
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Zanella BS, Jones SB, Lee HS, Hancock RD. Evidence for Participation of 4f and 5d Orbitals in Lanthanide Metal-Ligand Bonding and That Y(III) Has Less of This Complex-Stabilizing Ability. A Thermodynamic, Spectroscopic, and DFT Study of Their Complexation by the Nitrogen Donor Ligand TPEN. Inorg Chem 2022; 61:4627-4638. [PMID: 35244393 DOI: 10.1021/acs.inorgchem.1c03443] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The formation constants (log K1) of lanthanide(III) (Ln) ions [except for Pm(III)] and the Y(III) cation have been measured with the ligand TPEN (N,N,N',N'-tetra-2-picolylethylenediamine). These log K1 values show a typical variation with ionic radius, with a local maximum at Sm(III) and a local minimum at Gd(III), with an overall increase in log K1 from La(III) to Lu(III) as the ionic radius decreases. The log K1 for the Y(III)/TPEN complex is much lower than expected from its ionic radius, while the literature log K1 for Am(III) is much higher. The latter effect is thought to be due to greater covalence in the M-L (metal-ligand) bond than for Ln(III) ions: the low log K1 for Y(III) is interpreted as being due to lower covalence. The f → f transitions in the Nd(III) and Pr(III) complexes were examined for effects that might indicate the participation of f orbitals in M-L bonding. The intensity of the f → f transitions in the Nd(III)/TPEN complex was greatly increased compared to that of the Nd3+ aqua ion, which appeared to be due to additional sharp peaks, possibly parity forbidden transitions where parity rules were broken by covalence in the M-L bond. The Pr(III)/TPEN complex showed that all of the f → f transitions shifted to longer wavelengths by some 5 nm, with modest increases in intensity. The effects seen in the f → f transitions of Nd(III) and Pr(III) with TPEN with its six nitrogen donors were present to a much smaller extent in the EDTA and other complexes with fewer nitrogen donors. The changes in the f → f transitions of the TPEN complexes of Er(III) and Ho(III) were small, suggesting a smaller contribution of f orbitals to M-L bonding in these heavier Ln(III) ions. The intense Laporte allowed f → d transitions in Ce(III) complexes show large shifts to longer wavelengths as complexes of, for example, EDTA with increasing numbers of nitrogen donors, suggesting the participation of both f and d orbitals, or either, in M-L bonding. The nature of M-L bonding in M(III)/TPEN complexes was further investigated via density functional theory calculations.
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Affiliation(s)
- Brady S Zanella
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28407, United States
| | - S Bart Jones
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28407, United States
| | - Hee-Seung Lee
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28407, United States
| | - Robert D Hancock
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28407, United States
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Song L, Wang X, Wang D, Xiao Q, Xu H, Li Q, He L, Ding S. 2-Carboxamido-6-(1H-pyrazol-3-yl)-pyridines as ligands for efficient separation of americium(III) from europium(III). Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Yang Y, Lv L, Liu Y, Chen B, Liu J, Li X, Luo S. Complexes of Th(IV) with neutral O-N-N-O hybrid ligands: a thermodynamic and crystallographic study. Dalton Trans 2021; 50:705-714. [PMID: 33346260 DOI: 10.1039/d0dt03479g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermodynamics of Th(iv) complexes with N,N,N',N'-tetramethyl-2,2'-bipyridine-6,6'-dicarboxamide (TMBiPDA) and N,N,N',N'-tetramethyl-1,10-phenanthroline-2,9-dicarboxamide (TMPhenDA) in CH3OH/10%(v)H2O (CH3OH : H2O = 9 : 1 by volume) were determined by spectrophotometry and calorimetry. The ligand TMBiPDA/TMPhenDA coordinates with the central Th atom by the tetradentate (O-N-N-O) mode, which is validated by 1H NMR in solution and crystallography in the solid. The single crystal X-ray diffraction data show that ten-coordinated thorium coordinates with two ligand molecules and two solvent molecules (water or methanol). Both ThL and ThL2 complexes (L = TMPhenDA or TMBiPDA) were detected in solution. In thermodynamics, the formation of all complexes is driven by both enthalpy and entropy. In a comparison, enthalpy is more favorable to the formation of TMBiPDA complexes, while entropy is more favorable to the formation of TMPhenDA complexes; the entropy advantages of the TMPhenDA complexes override the enthalpy advantages of the corresponding TMBiPDA complexes, giving the TMPhenDA complexes higher stability constants than the TMBiPDA complexes. In crystallography, ligand distortions occur in ThL2 complexes, and TMBiDA distorts more than TMPhenDA does; the Th-O and Th-N bonds involving TMBiPDA are slightly shorter than those involving TMPhenDA.
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Affiliation(s)
- Yanqiu Yang
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China.
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11
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Ejarque D, Calvet T, Font-Bardia M, Pons J. Steric crowding of a series of pyridine based ligands influencing the photophysical properties of Zn( II) complexes. CrystEngComm 2021. [DOI: 10.1039/d1ce00833a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The combination of α-acetamidocinnamic acid (HACA) and different N, N,N and N,N,N pyridines (dPy) leads to crowded Zn(ii) metal centers. The increasing bulkiness competes with the chelation enhanced effect (CHEF) in the resulting quantum yields.
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Affiliation(s)
- Daniel Ejarque
- Departament de Química, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Teresa Calvet
- Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Unitat de Difracció de Raig-X, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís, 1-3, 08028 Barcelona, Spain
| | - Josefina Pons
- Departament de Química, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
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Tucker LE, Littman GC, Uritis S, Nugent JW, Thummel RP, Reibenspies JH, Jones SB, Lee HS, Hancock RD. Fluorescence and Metal-Binding Properties of the Highly Preorganized Tetradentate Ligand 2,2'-Bi-1,10-phenanthroline and Its Remarkable Affinity for Cadmium(II). Inorg Chem 2020; 59:13117-13127. [PMID: 32897701 DOI: 10.1021/acs.inorgchem.0c00361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The metal-ion-complexing properties of the tetradentate ligand 2,2'-bi-1,10-phenanthroline (BIPHEN) in 50% CH3OH/H2O are reported for a variety of metal ions. BIPHEN (with two reinforcing benzo groups in the backbone) was compared to other tetrapyridyls, 2,9-di(pyrid-2-yl)-1,10-phenanthroline (DPP; with one benzo group) and 2,2':6',2″:6″,2‴- quaterpyridine (QPY; with no benzo groups), with levels of preorganization BIPHEN > DPP > QPY. Formation constants were determined by following the variation of the intense π → π* transitions in the absorbance spectra of BIPHEN in the presence of metal ion as a function of the pH. The log K1 values show that the increased level of preorganization produced by the two benzo groups, reinforcing the backbone of the BIPHEN ligand, leads to increased complex stability with large metal ions (an ionic radius greater than 0.9 Å) compared to the less preorganized tetrapyridines DPP and QPY. In particular, the large CdII ion [log K1(BIPHEN) = 12.7] shows unusual selectivity over the small ZnII ion [log K1(BIPHEN) = 7.78]. The order of levels of preorganization BIPHEN > DPP > QPY leads to enhanced selectivity for SmIII over GdIII with increased preorganization, which is of interest in relation to separating AmIII from GdIII in the treatment of radioactive waste. AmIII is very close in ionic radius to SmIII, so that the size-based selectivity produced by the enhanced preorganization of BIPHEN should translate into enhanced AmIII/GdIII selectivity. The chelation-enhanced fluorescence (CHEF) effect in BIPHEN complexes is discussed. The CHEF effect in the ZnII complex is somewhat smaller than that for CdII, which is discussed in terms of decreased overlap in the Zn-N bonds formed by the too small ZnII, leading to a partial photoinduced-electron-transfer quenching of fluorescence. The structure of the complex [Cd(BIPHEN)2](ClO4)2 is reported and shows that the Cd-N bonds are largely normal for the unusual 8-coordination observed, except that steric clashes between the terminal pyridyl groups of each of the BIPHEN ligands, and the rest of the orthogonal BIPHEN ligand, lead to some stretching of the outer Cd-N bonds.
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Affiliation(s)
- Lyndsay E Tucker
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Galen C Littman
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Stuart Uritis
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Joseph W Nugent
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Randolph P Thummel
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Joseph H Reibenspies
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - S Bart Jones
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Hee-Seung Lee
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
| | - Robert D Hancock
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, Wilmington, North Carolina 28403, United States
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Sinharoy P, Singha Deb AK, Ali SM, Sharma JN, Kaushik CP. Ligand architectural effect on coordination, bonding, interaction, and selectivity of Am(iii) and Ln(iii) ions with bitopic ligands: synthesis, solvent extraction, and DFT studies. Phys Chem Chem Phys 2020; 22:15448-15462. [PMID: 32602482 DOI: 10.1039/d0cp01615b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The isolation of Am(iii) ion from Ln(iii) ions is very crucial for the safe disposal of nuclear wastes and thus, studies are being continuously pursued to accomplish this goal. In view of this, herein, a new conformationally rigid bitopic ligand, N,N,N',N'-tetra(2-ethylhexyl)piperazine-di-methylenecarboxamide (PIPDA) has been synthesized and studied for the separation of Am(iii) from Ln(iii) ions. The effect of structural rigidification on the selectivity of Am(iii) over Ln(iii) was compared with an open chain flexible compound, namely, N,N,N',N'-tetra(2-ethylhexyl)-3,6-(N'',N'''-dibutyl)diaza-octane-1,8-diamide (DADA). Two oxygen atoms of the diamide moiety seem to be responsible for controlling the metal ion extraction ability of PIPDA, whereas two nitrogen atoms of the piperazine moiety most probably dictate the separation factor between the Am(iii) and Eu(iii) ions in PIPDA. In addition, scalar relativistic density functional theory (DFT) in conjunction with Born-Haber thermodynamics was used herein to compliment the experimental selectivity. The experimentally observed preferential selectivity of PIPDA for Am(iii) ion over the Ln(iii) ion was corroborated by the computed extraction free energy, ΔGext. The covalent nature of bonding between the metal ions and the ligand was confirmed by analyzing the Mayer bond order and bond character analysis using the atom in molecule concept. Though the conformational rigidity of PIPDA gives stronger interaction than DADA, it does not offer a significant advantage over DADA in terms of the separation factor. The marginal increase in the separation factor for PIPDA over DADA might be attributed to the piperazine nitrogen and to the ligand architecture during complex formation.
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Affiliation(s)
- P Sinharoy
- Process Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
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14
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Lemport PS, Matveev PI, Yatsenko AV, Evsiunina MV, Petrov VS, Tarasevich BN, Roznyatovsky VA, Dorovatovskii PV, Khrustalev VN, Zhokhov SS, Solov'ev VP, Aslanov LA, Petrov VG, Kalmykov SN, Nenajdenko VG, Ustyniuk YA. The impact of alicyclic substituents on the extraction ability of new family of 1,10-phenanthroline-2,9-diamides. RSC Adv 2020; 10:26022-26033. [PMID: 35519740 PMCID: PMC9055307 DOI: 10.1039/d0ra05182a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 07/05/2020] [Indexed: 11/21/2022] Open
Abstract
Some unexpected “structure–extraction properties” patterns were found for new family of 1,10-phenanthroline-2,9-diamide derived ligands.
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Affiliation(s)
- Pavel S. Lemport
- Chemistry Department
- Lomonosov Moscow State University
- Moscow
- Russia
| | - Petr I. Matveev
- Chemistry Department
- Lomonosov Moscow State University
- Moscow
- Russia
| | | | | | | | | | | | | | - Victor N. Khrustalev
- Department of Inorganic Chemistry
- Peoples' Friendship University of Russia (RUDN University)
- Russia
- N.D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences
- Russia
| | | | - Vitaly P. Solov'ev
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Russian Academy of Sciences
- Russia
| | | | | | | | | | - Yuri A. Ustyniuk
- Chemistry Department
- Lomonosov Moscow State University
- Moscow
- Russia
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15
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Chen B, Liu J, Lv L, Yang L, Luo S, Yang Y, Peng S. Complexation of Lanthanides with N,N,N′,N′-Tetramethylamide Derivatives of Bipyridinedicarboxylic Acid and Phenanthrolinedicarboxylic Acid: Thermodynamics and Coordination Modes. Inorg Chem 2019; 58:7416-7425. [DOI: 10.1021/acs.inorgchem.9b00545] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Baihua Chen
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Jun Liu
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Lina Lv
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Liang Yang
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Shunzhong Luo
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Yanqiu Yang
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - Shuming Peng
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
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16
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Ballance DG, Bryantsev VS, Ivanov AS, Dai S, Hancock RD. Complexation of lanthanides and other metal ions by the polypyridyl ligand quaterpyridine: Relation between metal ion size, chelate ring size, and complex stability. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.12.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Bhattacharyya A, Ansari SA, Matveev PI, Zakirova GG, Borisova NE, Petrov VG, Sumyanova T, Verma PK, Kalmykov SN, Mohapatra PK. Unfolding the complexation and extraction of Am3+ and Eu3+ using N-heterocyclic aromatic diphosphonic acids: a combined experimental and DFT study. Dalton Trans 2019; 48:16279-16288. [DOI: 10.1039/c9dt03422f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extraction behaviour of Am3+ with three ‘N,O’-donor N-heterocyclic aromatic diphosphonates is explained using spectroscopic and DFT studies.
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Affiliation(s)
- Arunasis Bhattacharyya
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
| | - Seraj A. Ansari
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
| | - Petr I. Matveev
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | | | | | | | - Tsagana Sumyanova
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | - Parveen Kumar Verma
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
| | | | - Prasanta Kumar Mohapatra
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
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18
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Solov'ev VP, Ustynyuk YA, Zhokhova NI, Karpov KV. Predictive Models for HOMO and LUMO Energies of N-Donor Heterocycles as Ligands for Lanthanides Separation. Mol Inform 2018; 37:e1800025. [PMID: 29971949 DOI: 10.1002/minf.201800025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/20/2018] [Indexed: 11/11/2022]
Abstract
Quantum chemical calculations combined with QSPR methodology reveal challenging perspectives for the solution of a number of fundamental and applied problems. In this work, we performed the PM7 and DFT calculations and QSPR modeling of HOMO and LUMO energies for polydentate N-heterocyclic ligands promising for the extraction separation of lanthanides because these values are related to the ligands selectivity in the respect to the target cations. Data for QSPR modeling comprised the PM7 calculated HOMO and LUMO energies of N-donor heterocycles, including several types of both known and virtual undescribed polydentate ligands. Ensemble modeling included various molecular fragments as descriptors and different variable selection techniques to build consensus models (CMs) on a training set of 388 ligands using external cross-validation. CMs were then verified to make predictions for two external test sets: 45 ligands (T1) that were similar to the ligands of the training set, and 1546 structures (T2), which were substantially different from the ligands of the training set. The consensus models predict well in 5-fold cross-validation (RMSEHOMO =0.097 eV, RMSELUMO =0.064 eV), and on the external test sets (T1: RMSEHOMO =0.26 eV, RMSELUMO =0.24 eV; T2: RMSEHOMO =0.26 eV, RMSELUMO =0.17 eV). An analysis of the results reveals that substituents in heteroaromatic rings of the ligands and at the amide nitrogens can deeply influence their metal binding properties.
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Affiliation(s)
- Vitaly P Solov'ev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskiy prosp., 31, 119071, Moscow, Russia
| | - Yuri A Ustynyuk
- Chemistry Department, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Nelly I Zhokhova
- Faculty of Physics, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Kirill V Karpov
- Faculty of Physics, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
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19
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Mesbahi-Vasey S, Veras L, Yonkunas M, Johnson JW, Kurnikova MG. All atom NMDA receptor transmembrane domain model development and simulations in lipid bilayers and water. PLoS One 2017; 12:e0177686. [PMID: 28582391 PMCID: PMC5459333 DOI: 10.1371/journal.pone.0177686] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/01/2017] [Indexed: 11/19/2022] Open
Abstract
N-methyl-d-aspartate receptors (NMDARs) are members of the ionotropic glutamate receptor family that mediate excitatory synaptic transmission in the central nervous system. The channels of NMDARs are permeable to Ca2+ but blocked by Mg2+, distinctive properties that underlie essential brain processes such as induction of synaptic plasticity. However, due to limited structural information about the NMDAR transmembrane ion channel forming domain, the mechanism of divalent cation permeation and block is understood poorly. In this paper we developed an atomistic model of the transmembrane domain (TMD) of NMDARs composed of GluN1 and GluN2A subunits (GluN1/2A receptors). The model was generated using (a) a homology model based on the structure of the NaK channel and a partially resolved structure of an AMPA receptor (AMPAR), and (b) a partially resolved X-ray structure of GluN1/2B NMDARs. Refinement and extensive Molecular Dynamics (MD) simulations of the NMDAR TMD model were performed in explicit lipid bilayer membrane and water. Targeted MD with simulated annealing was introduced to promote structure refinement. Putative positions of the Mg2+ and Ca2+ ions in the ion channel divalent cation binding site are proposed. Differences in the structural and dynamic behavior of the channel protein in the presence of Mg2+ or Ca2+ are analyzed. NMDAR protein conformational flexibility was similar with no ion bound to the divalent cation binding site and with Ca2+ bound, whereas Mg2+ binding reduced protein fluctuations. While bound at the binding site both ions retained their preferred ligand coordination numbers: 6 for Mg2+, and 7–8 for Ca2+. Four asparagine side chain oxygens, a back-bone oxygen, and a water molecule participated in binding a Mg2+ ion. The Ca2+ ion first coordination shell ligands typically included four to five side-chain oxygen atoms of the binding site asparagine residues, two water molecules and zero to two backbone oxygens of the GluN2B subunits. These results demonstrate the importance of high-resolution channel structures for elucidation of mechanisms of NMDAR permeation and block.
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Affiliation(s)
- Samaneh Mesbahi-Vasey
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Lea Veras
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Michael Yonkunas
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Jon W. Johnson
- Department of Neuroscience and Center for Neuroscience, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Maria G. Kurnikova
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
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20
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AI-HUA CHEN, SU-CI MENG, KAI ZHOU, CONG-CONG WANG, WEI ZHAO, AI-JIAN WANG, JUN QIAN. A New Copper(I) Complex Based on 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole: Synthesis, Crystal Structure, Theoretical Study, Thermal Behavior and Luminescence. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1226-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Lavrov HV, Ustynyuk NA, Matveev PI, Gloriozov IP, Zhokhov SS, Alyapyshev MY, Tkachenko LI, Voronaev IG, Babain VA, Kalmykov SN, Ustynyuk YA. A novel highly selective ligand for separation of actinides and lanthanides in the nuclear fuel cycle. Experimental verification of the theoretical prediction. Dalton Trans 2017; 46:10926-10934. [DOI: 10.1039/c7dt01009e] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Predicted by DFT simulation dilactams (B) are selective and efficient extractants for the separation of Eu3+ and Am3+.
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Affiliation(s)
- H. V. Lavrov
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119334
- Russia
| | - N. A. Ustynyuk
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119334
- Russia
| | - P. I. Matveev
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - I. P. Gloriozov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - S. S. Zhokhov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - M. Yu. Alyapyshev
- Khlopin Radium Institute
- St. Petersburg 194021
- Russia
- ITMO University
- St. Petersburg
| | | | | | - V. A. Babain
- ITMO University
- St. Petersburg
- Russia
- ThreeArc Mining Ltd
- Moscow
| | - S. N. Kalmykov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
- NRC “Kurchatov Institute”
| | - Yu. A. Ustynyuk
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
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22
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Lashley MA, Ivanov AS, Bryantsev VS, Dai S, Hancock RD. Highly Preorganized Ligand 1,10-Phenanthroline-2,9-dicarboxylic Acid for the Selective Recovery of Uranium from Seawater in the Presence of Competing Vanadium Species. Inorg Chem 2016; 55:10818-10829. [DOI: 10.1021/acs.inorgchem.6b02234] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark A. Lashley
- Department of Chemistry
and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403, United States
| | - Alexander S. Ivanov
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak
Ridge, Tennessee 37831-6119, United States
| | - Vyacheslav S. Bryantsev
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak
Ridge, Tennessee 37831-6119, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak
Ridge, Tennessee 37831-6119, United States
| | - Robert D. Hancock
- Department of Chemistry
and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403, United States
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23
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Alyapyshev M, Ashina J, Dar’in D, Kenf E, Kirsanov D, Tkachenko L, Legin A, Starova G, Babain V. 1,10-Phenanthroline-2,9-dicarboxamides as ligands for separation and sensing of hazardous metals. RSC Adv 2016. [DOI: 10.1039/c6ra08946a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1,10-Phenanthroline-2,9-dicarboxamides of various structures were synthesized and studied as ligands for separation and sensing of d- and f-metals.
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Affiliation(s)
- M. Alyapyshev
- Khlopin Radium Institute
- St. Petersburg
- Russia
- ITMO University
- St. Petersburg
| | | | - D. Dar’in
- Institute of Chemistry
- St. Petersburg State University
- St. Petersburg
- Russia
| | - E. Kenf
- Khlopin Radium Institute
- St. Petersburg
- Russia
| | - D. Kirsanov
- ITMO University
- St. Petersburg
- Russia
- Institute of Chemistry
- St. Petersburg State University
| | | | - A. Legin
- ITMO University
- St. Petersburg
- Russia
- Institute of Chemistry
- St. Petersburg State University
| | - G. Starova
- Institute of Chemistry
- St. Petersburg State University
- St. Petersburg
- Russia
| | - V. Babain
- ITMO University
- St. Petersburg
- Russia
- ThreeArc Mining Ltd
- Moscow
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24
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Rodríguez-Hermida S, Lago AB, Carballo R, Fabelo O, Vázquez-López EM. Homo- and Heteronuclear Compounds with a Symmetrical Bis-hydrazone Ligand: Synthesis, Structural Studies, and Luminescent Properties. Chemistry 2015; 21:6605-16. [DOI: 10.1002/chem.201405962] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 02/02/2023]
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25
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Ustynyuk YA, Borisova NE, Babain VA, Gloriozov IP, Manuilov AY, Kalmykov SN, Alyapyshev MY, Tkachenko LI, Kenf EV, Ustynyuk NA. N,N′-Dialkyl-N,N′-diaryl-1,10-phenanthroline-2,9-dicarboxamides as donor ligands for separation of rare earth elements with a high and unusual selectivity. DFT computational and experimental studies. Chem Commun (Camb) 2015; 51:7466-9. [DOI: 10.1039/c5cc01620g] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
These diamides were predicted (DFT simulation) and then were proved to be efficient donor ligands for the separation of lanthanides.
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Affiliation(s)
- Yu. A. Ustynyuk
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - N. E. Borisova
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | | | - I. P. Gloriozov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. Y. Manuilov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - S. N. Kalmykov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - M. Yu. Alyapyshev
- ITMO University
- St. Petersburg
- Russia
- Khlopin Radium Institute
- St. Petersburg 194021
| | | | - E. V. Kenf
- Khlopin Radium Institute
- St. Petersburg 194021
- Russia
| | - N. A. Ustynyuk
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119334
- Russia
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26
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Xiao CL, Wu QY, Wang CZ, Zhao YL, Chai ZF, Shi WQ. Quantum chemistry study of uranium(VI), neptunium(V), and plutonium(IV,VI) complexes with preorganized tetradentate phenanthrolineamide ligands. Inorg Chem 2014; 53:10846-53. [PMID: 25268674 DOI: 10.1021/ic500816z] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The preorganized tetradentate 2,9-diamido-1,10-phenanthroline ligand with hard-soft donors combined in the same molecule has been found to possess high selectivity toward actinides in an acidic aqueous solution. In this work, density functional theory (DFT) coupled with the quasi-relativistic small-core pseudopotential method was used to investigate the structures, bonding nature, and thermodynamic behavior of uranium(VI), neptunium(V), and plutonium(IV,VI) with phenanthrolineamides. Theoretical optimization shows that Et-Tol-DAPhen and Et-Et-DAPhen ligands are both coordinated with actinides in a tetradentate chelating mode through two N donors of the phenanthroline moiety and two O donors of the amide moieties. It is found that [AnO2L(NO3)](n+) (An = U(VI), Np(V), Pu(VI); n = 0, 1) and PuL(NO3)4 are the main 1:1 complexes. With respect to 1:2 complexes, the reaction [Pu(H2O)9](4+)(aq) + 2L(org) + 2NO3(-)(aq) → [PuL2(NO3)2](2+)(org) + 9H2O(aq) might be another probable extraction mechanism for Pu(IV). From the viewpoint of energy, the phenanthrolineamides extract actinides in the order of Pu(IV) > U(VI) > Pu(VI) > Np(V), which agrees well with the experimental results. Additionally, all of the thermodynamic reactions are more energetically favorable for the Et-Tol-DAPhen ligand than the Et-Et-DAPhen ligand, indicating that substitution of one ethyl group with one tolyl group can enhance the complexation abilities toward actinide cations (anomalous aryl strengthening).
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Affiliation(s)
- Cheng-Liang Xiao
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China
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27
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Chen C, Zhang L, Zhao L, Qi D, Jiang J. Density functional theory prediction for the second-order nonlinear optical responses of phenanthroline-fused phthalocyanine derivatives. J PORPHYR PHTHALOCYA 2014. [DOI: 10.1142/s1088424613500855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A series of unsymmetrical phenanthroline-fused phthalocyanine derivatives including Zn [ Pc ( Phen )], Zn [ Pc ( Phen )2], Zn [ Pc ( Phen )3], Zn [ Pc ( NH 2)6( Phen )], Zn [ Pc ( NH 2)4( Phen )2], Zn [ Pc ( NH 2)2( Phen )3], Zn [ PcF 6( Phen )], Zn [ PcF 4( Phen )2], and Zn [ PcF 2( Phen )3] were designed to explore their properties of geometric and electronic structures, electronic absorption spectra, and second-order nonlinear responses under density functional theory and time-dependent density functional theory calculations. The computational results show that the peripheral substituents with push-pull effect could obviously change the π–π* transitions, leading to a tunable absorption region in the range between 300–800 nm. The hyperpolarizabilities were carefully investigated using CP-DFT method, revealing the size effect and clarifying the limit when expanding the conjugated system is employed to improve the hyper-Rayleigh scattering response coefficient (βHRS). According to the results, the NH 2-substitued phenanthroline-fused phthalocyanines are considered as ideal NLO blocking materials with large βHRS.
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Affiliation(s)
- Chao Chen
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Lijuan Zhang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Luyang Zhao
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Dongdong Qi
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Jianzhuang Jiang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
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28
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Alyapyshev MY, Babain VA, Tkachenko LI, Paulenova A, Popova AA, Borisova NE. New Diamides of 2,2′-dipyridyl-6,6′-dicarboxylic Acid for Actinide-Lanthanide Separation. SOLVENT EXTRACTION AND ION EXCHANGE 2014. [DOI: 10.1080/07366299.2013.833783] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Xiao CL, Wang CZ, Yuan LY, Li B, He H, Wang S, Zhao YL, Chai ZF, Shi WQ. Excellent Selectivity for Actinides with a Tetradentate 2,9-Diamide-1,10-Phenanthroline Ligand in Highly Acidic Solution: A Hard–Soft Donor Combined Strategy. Inorg Chem 2014; 53:1712-20. [DOI: 10.1021/ic402784c] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Cheng-Liang Xiao
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Cong-Zhi Wang
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Li-Yong Yuan
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Bin Li
- Division of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, P.R. China
| | - Hui He
- Division of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, P.R. China
| | - Shuao Wang
- School of Radiological and Interdisciplinary Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Yu-Liang Zhao
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhi-Fang Chai
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
- School of Radiological and Interdisciplinary Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Wei-Qun Shi
- Key Laboratory of
Nuclear Radiation and Nuclear Energy Technology and Key Laboratory
For Biomedical Effects of Nanomaterials and Nanosafety, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
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Xiao CL, Wu QY, Mei L, Yuan LY, Wang CZ, Zhao YL, Chai ZF, Shi WQ. High selectivity towards small copper ions by a preorganized phenanthroline-derived tetradentate ligand and new insight into the complexation mechanism. Dalton Trans 2014; 43:12470-3. [DOI: 10.1039/c4dt01489h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A preorganized tetradentate phenanthroline-derived amide ligand was found to show high selectivity towards small copper ions.
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Affiliation(s)
- Cheng-Liang Xiao
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Qun-Yan Wu
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Lei Mei
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Li-Yong Yuan
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Cong-Zhi Wang
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Yu-Liang Zhao
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
| | - Zhi-Fang Chai
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
- School of Radiological & Interdisciplinary Sciences
| | - Wei-Qun Shi
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory For Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049, China
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31
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Chen A, Meng S, Zhang J, Zhang C. Synthesis, Crystal Structure, Theoretical Study, Thermal Behavior, and Luminescence Property of A Bromide-Bridged Silver(I) Complex with 4, 4′-Bipyridine. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300461] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chen A, Meng S, Zhang J, Zhang C. Syntheses, structural, theoretical studies and thermal behaviors of two luminous copper(I) halide complexes of dipyrido[3,2-f:2,3-h]-quinoxaline. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.07.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Jiménez-Sánchez A, Farfán N, Santillan R. A reversible fluorescent–colorimetric Schiff base sensor for Hg2+ ion. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.072] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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34
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Two interesting tetranuclear Ag(I) complexes based on dipyrido[3,2-f:2,3-h]-quinoxaline: Synthesis, structural, luminescence and theoretical studies. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.06.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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35
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Hancock RD, Bartolotti LJ. A DFT analysis of the effect of chelate ring size on metal ion selectivity in complexes of polyamine ligands. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.09.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Goswami S, Das AK, Maity S. ‘PET’ vs. ‘push–pull’ induced ICT: a remarkable coumarinyl-appended pyrimidine based naked eye colorimetric and fluorimetric sensor for the detection of Hg2+ ions in aqueous media with test trips. Dalton Trans 2013; 42:16259-63. [DOI: 10.1039/c3dt52252k] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Hancock RD. The pyridyl group in ligand design for selective metal ion complexation and sensing. Chem Soc Rev 2013; 42:1500-24. [DOI: 10.1039/c2cs35224a] [Citation(s) in RCA: 251] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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38
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Carolan AN, Mroz AE, El Ojaimi M, VanDerveer DG, Thummel RP, Hancock RD. Metal-Ion-Complexing Properties of 2-(Pyrid-2′-yl)-1,10-phenanthroline, a More Preorganized Analogue of Terpyridyl. A Crystallographic, Fluorescence, and Thermodynamic Study. Inorg Chem 2012; 51:3007-15. [DOI: 10.1021/ic202337v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ashley N. Carolan
- Department of Chemistry
and Biochemistry, University of North Carolina at Wilmington, Wilmington, North Carolina 28403, United
States
| | - Amy E. Mroz
- Department of Chemistry
and Biochemistry, University of North Carolina at Wilmington, Wilmington, North Carolina 28403, United
States
| | - Maya El Ojaimi
- Department
of Chemistry, University of Houston, Houston, Texas
77004, United States
| | - Donald G. VanDerveer
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
| | - Randolph P. Thummel
- Department
of Chemistry, University of Houston, Houston, Texas
77004, United States
| | - Robert D. Hancock
- Department of Chemistry
and Biochemistry, University of North Carolina at Wilmington, Wilmington, North Carolina 28403, United
States
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