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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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Le-Hoang G, Guénée L, Sommer Q, Piguet C. Tuning Selectivity and Stability in Heteroleptic Lanthanide Adducts by Ligand Design. Inorg Chem 2024; 63:3712-3723. [PMID: 38334740 DOI: 10.1021/acs.inorgchem.3c03710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Terdentate ligands L10-L14 and their heteroleptic [LkLn(hfac)3] complexes (Ln = La, Eu, Gd, Er, or Y; H-hfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione) exhibit multifactorial correlations between the ligand's structural frameworks, including their level of preorganization and steric congestion and their affinities and selectivities for catching the trivalent lanthanide containers [Ln(hfac)3]. The polyaromatic ligand scaffolds could be stepwise modulated via lanthanide-template synthetic strategies, using intermolecular rhodium-catalyzed insertion reactions. The increasing level of preorganization along the L10 → L11 → L12 series leads to a duality in which larger thermodynamic formation constants with lanthanides in CD2Cl2 are accompanied by an unexpected decrease in the Ln-N affinities in the solid state, which could be assigned to a limited match between the lanthanide size and the enlarged preorganized cavities. On the contrary, a reduced stability is induced by the connection of additional methyl groups at position 1 of the benzimidazole moieties in L13 and L14, which is accompanied by an optimization of metal-nitrogen bond lengths. This study contributes to the rational design of highly stable neutral heteroleptic lanthanide β-diketonate adducts that resist dissociation in solution, a prerequisite for photophysical applications using these highly luminescent systems at the molecular level.
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Affiliation(s)
- Giau Le-Hoang
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Laure Guénée
- Laboratory of Crystallography, University of Geneva, 24 quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Quentin Sommer
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai E. Ansermet, CH-1211 Geneva 4, Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai E. Ansermet, CH-1211 Geneva 4, Switzerland
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3
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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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4
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Uritis S, Thummel RP, Lee HS, Hancock RD. A study of the complexes of Hg(II) with polypyridyl ligands by Fluorescence, absorbance Spectroscopy, and DFT calculations. The effect of ligand preorganization and relativistic effects on complex stability. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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5
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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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Rowlands GJ, Severinsen RJ, Buchanan JK, Shaffer KJ, Jameson HT, Thennakoon N, Leito I, Lõkov M, Kütt A, Vianello R, Despotović I, Radić N, Plieger PG. Synthesis and Basicity Studies of Quinolino[7,8- h]quinoline Derivatives. J Org Chem 2020; 85:11297-11308. [PMID: 32786648 DOI: 10.1021/acs.joc.0c01428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Quinolino[7,8-h]quinoline is a superbasic compound, with a pKaH in acetonitrile greater than that of 1,8-bis(dimethylaminonaphthalene) (DMAN), although its synthesis and the synthesis of its derivatives can be problematic. The use of halogen derivatives 4,9-dichloroquinolino[7,8-h]quinoline (16) and 4,9-dibromoquinolino[7,8-h]quinoline (17) as precursors has granted the formation of a range of substituted quinolinoquinolines. The basicity and other properties of quinolinoquinolines can be modified by the inclusion of suitable functionalities. The experimentally obtained pKaH values of quinolino[7,8-h]quinoline derivatives show that N4,N4,N9,N9-tetraethylquinolino[7,8-h]quinoline-4,9-diamine (26) is more superbasic than quinolino[7,8-h]quinoline. Computationally derived pKaH values of quinolinoquinolines functionalized with dimethylamino (NMe2), 1,1,3,3-tetramethylguanidino (N═C(NMe2)2) or N,N,N',N',N″,N″-hexamethylphosphorimidic triamido (N═P(NMe2)3) groups are significantly greater than those of quinolino[7,8-h]quinoline. Overall, electron-donating functionalities are observed to increase the basicity of the quinolinoquinoline moiety, while the substitution of electron-withdrawing groups lowers the basicity.
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Affiliation(s)
- Gareth J Rowlands
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Rebecca J Severinsen
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Jenna K Buchanan
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Karl J Shaffer
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Heather T Jameson
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Nishani Thennakoon
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Ivo Leito
- Institute of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Märt Lõkov
- Institute of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Agnes Kütt
- Institute of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Robert Vianello
- Rud̵er Bošković Institute, Bijenička cesta 54, Zagreb 10000, Croatia
| | - Ines Despotović
- Rud̵er Bošković Institute, Bijenička cesta 54, Zagreb 10000, Croatia
| | - Nena Radić
- Rud̵er Bošković Institute, Bijenička cesta 54, Zagreb 10000, Croatia
| | - Paul G Plieger
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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7
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Stones MK, Banz Chung EMJ, da Cunha IT, Sullivan RJ, Soltanipanah P, Magee M, Umphrey GJ, Moore CM, Sutton AD, Schlaf M. Conversion of Furfural Derivatives to 1,4-Pentanediol and Cyclopentanol in Aqueous Medium Catalyzed by trans-[(2,9-Dipyridyl-1,10-phenanthroline)(CH 3CN) 2Ru](OTf) 2. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05055] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maryanne K. Stones
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Elise M.-J. Banz Chung
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Igor Tadeu da Cunha
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Ryan J. Sullivan
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Parnian Soltanipanah
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Megan Magee
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Gary J. Umphrey
- Department of Mathematics and Statistics, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Cameron M. Moore
- Chemistry Division, Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Andrew D. Sutton
- Chemistry Division, Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Marcel Schlaf
- The Guelph-Waterloo-Centre for Graduate Work in Chemistry (GWC)2, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
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8
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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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9
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Bazargan M, Mirzaei M, Franconetti A, Frontera A. On the preferences of five-membered chelate rings in coordination chemistry: insights from the Cambridge Structural Database and theoretical calculations. Dalton Trans 2019; 48:5476-5490. [PMID: 30920565 DOI: 10.1039/c9dt00542k] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The purpose of this review is to give an overview of three important N-bidentate ligands: 1,10-phenanthroline (phen), 2,2'-bipyridine (bpy), and ethylenediamine (en). We have not attempted to be comprehensive because of the huge amount of activity being done in coordination chemistry using these ligands. Instead we present a full structural and geometrical study by using the Cambridge Structural Database (CSD) combined with theoretical calculations that allow us to parameterize their coordinating properties and ability to coordinate to transition and non-transition metals. More importantly, we illustrate that upon coordination and formation of the five-membered chelate ring, these ligands are able to adapt themselves to the requirements of the different metals by changing the MN distances and NMN angles. Therefore, a redefinition of the preferences of these ligands to metals with large ionic radii is needed. Finally, we will present some facts about the participation of these ligands in inorganic-organic hybrids (IOHs) based on Keggin polyoxometalates (POMs).
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Affiliation(s)
- Maryam Bazargan
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 917751436, Mashhad, Iran.
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10
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Derakhshanrad S, Mirzaei M, Najafi A, Ritchie C, Bauzá A, Frontera A, Mague JT. Surface-grafted lanthanoid complexes of the tungstosilicate polyanion [SiW12O40]4−: a synthetic, structural and computational investigation. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:1300-1309. [DOI: 10.1107/s2053229618009580] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/04/2018] [Indexed: 11/10/2022]
Abstract
As an extension of our continued interest in the preparation of inorganic–organic hybrids, we report the successful hydrothermal synthesis of sodium tris[triaqua(μ-1,10-phenanthroline-2,9-dicarboxylato)dysprosium(III)] silicododecatungstate dodecahydrate, {[DyNa(C14H6N2O4)3(H2O)9(SiW12O40)]·12H2O}nor Na[Dy(PDA)(H2O)3]3[SiW12O40]·12H2O (1), and sodium aqua tris[tetraaqua(μ-4-hydroxypyridine-2,6-dicarboxylato)praseodymium(III)] silicododecatungstate dodecahydrate, {[NaPr(C7H3NO5)3(H2O)13(SiW12O40)]·12H2O}nor Na(H2O)[Pr(pydc-OH)(H2O)4]3[SiW12O40]·12H2O (2) (in which H2PDA is 1,10-phenanthroline-2,9-dicarboxylic acid and H2pydc-OH is 4-hydroxypyridine-2,6-dicarboxylic acid or chelidamic acid). Both compounds have been characterized using elemental analysis, IR spectroscopy and X-ray diffraction methods. Structural characterization by single-crystal X-ray diffraction reveals that these compounds consist of [SiW12O40]4−Keggin-type polyoxometalates (POMs), where a single {W3O13} triad is decorated with a trinuclear Ln complex. Moreover, the decorated polyanions are involved in a series of intermolecular interactions, such as hydrogen bonds and anion–π interactions, resulting in three-dimensional supramolecular architectures. Density functional theory (DFT) studies were conducted to support these intermolecular interactions in both1and2, and have been rationalized using molecular electrostatic potential (MEP) surface calculations.
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11
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Structure and electrochemical studies on the complexation of hexacyclohexanocucurbit[6]uril with lead ion. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Huber FL, Nauroozi D, Mengele AK, Rau S. Synthesis and Characterization of a Ruthenium(II) Complex for the Development of Supramolecular Photocatalysts Containing Multidentate Coordination Spheres. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700565] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fabian L. Huber
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Djawed Nauroozi
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Alexander K. Mengele
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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13
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Petzold H, Djomgoue P, Hörner G, Heider S, Lochenie C, Weber B, Rüffer T, Schaarschmidt D. Spin state variability in Fe2+ complexes of substituted (2-(pyridin-2-yl)-1,10-phenanthroline) ligands as versatile terpyridine analogues. Dalton Trans 2017; 46:6218-6229. [DOI: 10.1039/c7dt00422b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe2+ spin crossover complexes [Fe(L)2]2+ (L = substituted (pyridin-2-yl)-1,10-phenanthroline) were prepared and SCO properties were investigated in solution and in the solid state by an experiment and in silico.
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Affiliation(s)
- Holm Petzold
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Paul Djomgoue
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | | | - Silvio Heider
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Charles Lochenie
- Institut de science et d'ingénierie supramoléculaires (ISIS)
- Université de Strasbourg & CNRS
- 67000 Strasbourg
- France
| | - Birgit Weber
- Anorganische Chemie II
- Universität Bayreuth
- 95440 Bayreuth
- Germany
| | - Tobias Rüffer
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
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14
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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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15
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Gorczyński A, Harrowfield JM, Patroniak V, Stefankiewicz AR. Quaterpyridines as Scaffolds for Functional Metallosupramolecular Materials. Chem Rev 2016; 116:14620-14674. [DOI: 10.1021/acs.chemrev.6b00377] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adam Gorczyński
- Faculty
of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61614 Poznań, Poland
| | - Jack M. Harrowfield
- Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67083 Strasbourg, France
| | - Violetta Patroniak
- Faculty
of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61614 Poznań, Poland
| | - Artur R. Stefankiewicz
- Faculty
of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61614 Poznań, Poland
- Centre
for Advanced Technologies, Adam Mickiewicz University, Umultowska
89c, 61-614 Poznań, Poland
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16
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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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17
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Wojaczyńska E, Skarżewski J, Sidorowicz Ł, Wieczorek R, Wojaczyński J. Zinc complexes formed by 2,2′-bipyridine and 1,10-phenanthroline moieties combined with 2-azanorbornane: modular chiral catalysts for aldol reactions. NEW J CHEM 2016. [DOI: 10.1039/c6nj02251k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Zinc complexes of new hybrid chiral imine ligands based on a bicyclic skeleton appear to be effective modular catalysts in asymmetric aldol reactions.
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Affiliation(s)
- Elżbieta Wojaczyńska
- Departament of Organic Chemistry
- Faculty of Chemistry
- Wrocław University of Technology
- Poland
| | - Jacek Skarżewski
- Departament of Organic Chemistry
- Faculty of Chemistry
- Wrocław University of Technology
- Poland
| | - Łukasz Sidorowicz
- Departament of Organic Chemistry
- Faculty of Chemistry
- Wrocław University of Technology
- Poland
| | - Robert Wieczorek
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
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18
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Nugent JW, Reibenspies JH, Hancock RD. Controlling the Fluorescence Response of PET Sensors via the Metal-Ion π-Contacting Ability of the Fluorophore: Coumarin, a Weaker π Contacter. Inorg Chem 2015; 54:9976-88. [PMID: 26426391 DOI: 10.1021/acs.inorgchem.5b01766] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The π-contact hypothesis, that quenching of the fluorescence of complexes of photoinduced electron transfer sensors with heavy diamagnetic metal ions may be caused by π contacts between the metal ion and the fluorophore of the sensor, is examined with a study of the fluorescent properties of the sensor 4-[[bis(2-pyridinylmethyl)amino]methyl]-6,7-dimethoxy-1-benzopyran-2-one (cdpa) and the structures of its complexes with some metal ions. The coumarin-type fluorophore of cdpa is a weaker π-contact former than the anthracenyl fluorophore of the analogue adpa (Inorg. Chem. 2014, 53, 9014): only Ag(I), the strongest π contact former, quenches the fluorescence of cdpa, apart from paramagnetic Cu(II) and Ni(II), which quench fluorescence by a redox mechanism not requiring π contacts. The structures of [Ag(cdpa)NO3] (1), [Pb(cdpa)(NO3)2] (2), [Zn(cdpa)(NO3)2] (3), [Cd(cdpa)Cl2]2 (4), [Cd(cdpa)2H2O](NO3)2 (5), and [Hg(cdpa)2H2O](NO3)2 (6) are reported. Structure 1 shows that Ag(I) is the only metal ion studied that forms π contacts with the fluorophore of cdpa in the solid state: Ag···C η(2) π contacts of 3.083 and 3.095 Å, in line with quenching of the fluorescence of the Ag(I)(cdpa) complex. In contrast, Pb(II), Zn(II), and Cd(II) show chelation-enhanced fluorescence in their cdpa complexes, and the structures of 2-4 show that the fluorophore of cdpa in each case forms no π contacts. By contrast, the adpa complexes of Pb(II) and Cd(II) show π contacts with its more strongly π-contacting fluorophore (Inorg. Chem. 2014, 53, 9014). The structures of 5 and 6 show bis-complexes of cdpa: the coordination geometries of Cd(II) and Hg(II) are discussed in relation to the number of covalently bound donor atoms present. The preferred hapticity of π-contacted metal ions is evaluated from the literature structures, suggesting that d(10) metal ions such as Ag(I) and Hg(II), and tetragonally distorted Cu(II) and Pd(II), prefer η(1) and η(2) π contacts, while more ionically bound metal ions such as K(I), Ba(II), and La(III), as well as d(10)s(2) metal ions such as Tl(I), Pb(II), and Bi(III), prefer η(6) contacts.
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Affiliation(s)
- Joseph W Nugent
- Department of Chemistry and Biochemistry, University of North Carolina-Wilmington ,Wilmington, North Carolina 28403, United States
| | - Joseph H Reibenspies
- Department of Chemistry, Texas A&M University , College Station, Texas 77843, 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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19
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Influence of pH and type of counterion on the formation of bismuth(III) complexes with tropolonato and 5-methyltropolonato ligands: Synthesis, structure, spectroscopic characterization and calculation studies. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.07.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Bhattacharyya A, Gadly T, Pathak P, Ghosh SK, Mohapatra M, Ghanty TK, Mohapatra PK. Complexation of trivalent americium and lanthanides with terdentate 'N' donor ligands: the role of rigidity in the ligand structure. Dalton Trans 2015; 43:12422-9. [PMID: 25001925 DOI: 10.1039/c4dt01342e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A systematic study on the Ln(3+) complexation behaviour with two terdentate 'N' donor ligands of varying structural rigidity, viz. 5,6-dimethyl-(1,2,4)-triazinylbipyridine (Me2TBipy) and 5,6-dimethyl-(1,2,4)-triazinylphenanthroline (Me2TPhen), is performed in the present work by UV-Vis spectrophotometry, time resolved fluorescence spectroscopy (TRFS) and electrospray ionization mass spectrometric (ESI-MS) studies. These studies indicate the formation of a 1 : 1 complex of La(3+), 1 : 2 complexes of Eu(3+) and Er(3+) with both the ligands. Density functional theoretical (DFT) study is carried out to determine the solution phase structure of the Eu(3+) complex considering the species (from UV-Vis spectrophotometry) and C2v site symmetry around the Eu(3+) ion (from TRFS study). Me2TPhen is found to be a stronger complexing ligand as compared to Me2TBipy irrespective of the Ln(3+) ions. The solid state crystal structure of the La(3+) complex of Me2TPhen is determined using the single crystal X-ray diffraction (SCXRD) technique. The complexation of the trivalent Am(3+) ion is also studied with both these ligands using UV-Vis spectrophotometric titrations which show the formation of 1 : 2 complexes with higher complexation constant values as compared to all the Ln(3+) ions studied, indicating the selectivity of these ligands for the trivalent actinides over the lanthanides.
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21
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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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22
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Xiao C, Wu Q, Wang C, Zhao Y, Chai Z, Shi W. Design criteria for tetradentate phenanthroline-derived heterocyclic ligands to separate Am(III) from Eu(III). Sci China Chem 2014. [DOI: 10.1007/s11426-014-5215-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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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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24
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Lewis FW, Harwood LM, Hudson MJ, Drew MGB, Hubscher-Bruder V, Videva V, Arnaud-Neu F, Stamberg K, Vyas S. BTBPs versus BTPhens: Some Reasons for Their Differences in Properties Concerning the Partitioning of Minor Actinides and the Advantages of BTPhens. Inorg Chem 2013; 52:4993-5005. [DOI: 10.1021/ic3026842] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Frank W. Lewis
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Laurence M. Harwood
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Michael J. Hudson
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Michael G. B. Drew
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Véronique Hubscher-Bruder
- Université de Strasbourg, IPHC, 25 rue Becquerel 67087 Strasbourg, France CNRS, UMR7178,
67037 Strasbourg, France
| | - Vladimira Videva
- Université de Strasbourg, IPHC, 25 rue Becquerel 67087 Strasbourg, France CNRS, UMR7178,
67037 Strasbourg, France
| | - Françoise Arnaud-Neu
- Université de Strasbourg, IPHC, 25 rue Becquerel 67087 Strasbourg, France CNRS, UMR7178,
67037 Strasbourg, France
| | - Karel Stamberg
- Department of Nuclear Chemistry, Czech Technical University in Prague, Břehová 7, 11519 Prague 1,
Czech Republic
| | - Shyam Vyas
- National Nuclear Laboratory, Chadwick House, Warrington
Road, Warrington WA3 6AE, United Kingdom
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25
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Galletta M, Scaravaggi S, Macerata E, Famulari A, Mele A, Panzeri W, Sansone F, Casnati A, Mariani M. 2,9-Dicarbonyl-1,10-phenanthroline derivatives with an unprecedented Am(iii)/Eu(iii) selectivity under highly acidic conditions. Dalton Trans 2013; 42:16930-8. [DOI: 10.1039/c3dt52104d] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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