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Buchner MR, Ćoćić D, Ivlev SI, Spang N, Müller M, Puchta R. Ligand exchange at tetra-coordinated beryllium centres. Dalton Trans 2023; 52:5287-5296. [PMID: 36988038 DOI: 10.1039/d3dt00713h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Mono and dinuclear phosphine complexes of beryllium halides [(PMe3)2BeX2], [(PMe3)BeX2]2 and [(PCy3)BeX2]2 (X = Cl, Br, I) were synthesised and characterised via NMR and IR spectroscopy as well as single crystal X-ray diffraction experiments. Dissociation and ligand exchange processes at these complexes were investigated through variable temperature NMR experiments in combination with line shape analysis and complemented by quantum chemical calculations. The PMe3 dissociation energy is smallest in [(PMe3)2BeCl2], while PMe3 exchange is similar in energy in all mononuclear [(PMe3)2BeX2] complexes and follows an interchange mechanism. While [(PMe3)BeX2]2 dissociates homolytically, [(PCy3)BeX2]2 cleaves one phosphine ligand. These distinctive dissociation processes account for the different chemical behaviour of these complexes.
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Affiliation(s)
- Magnus R Buchner
- Anorganische Chemie, Nachwuchsgruppe Hauptgruppenmetallchemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.
| | - Dušan Ćoćić
- Anorganische und Metallorganische Chemie, Department Chemie und Pharmazie, Friedrich-Alexander-Universität, Egerlandstraße 1, 91058 Erlangen, Germany.
- Faculty of Science, University of Kragujevac, Radoja Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia
| | - Sergei I Ivlev
- Anorganische Chemie, Nachwuchsgruppe Hauptgruppenmetallchemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.
| | - Nils Spang
- Anorganische Chemie, Nachwuchsgruppe Hauptgruppenmetallchemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.
| | - Matthias Müller
- Anorganische Chemie, Nachwuchsgruppe Hauptgruppenmetallchemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.
| | - Ralph Puchta
- Anorganische und Metallorganische Chemie, Department Chemie und Pharmazie, Friedrich-Alexander-Universität, Egerlandstraße 1, 91058 Erlangen, Germany.
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Roy S, Thirumoorthy K, Padidela UK, Vairaprakash P, Anoop A, Thimmakondu VS. Organomagnesium Crown Ethers and Their Binding Affinities with Li
+
, Na
+
, K
+
, Be
2+
, Mg
2+
, and Ca
2+
Ions – A Theoretical Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Saikat Roy
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Krishnan Thirumoorthy
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632 014 Tamil Nadu India
| | - Uday Kumar Padidela
- Department of Chemistry Birla Institute of Technology and Science Pilani K K Birla Goa Campus Goa 403 726 India
| | - Pothiappan Vairaprakash
- Department of Chemistry School of Chemical and Biotechnology SASTRA Deemed University Than javur 613 401 Tamil Nadu India
| | - Anakuthil Anoop
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
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3
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Hubbard CD, Chatterjee D, Oszajca M, Polaczek J, Impert O, Chrzanowska M, Katafias A, Puchta R, van Eldik R. Inorganic reaction mechanisms. A personal journey. Dalton Trans 2020; 49:4599-4659. [PMID: 32162632 DOI: 10.1039/c9dt04620h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This review covers highlights of the work performed in the van Eldik group on inorganic reaction mechanisms over the past two decades in the form of a personal journey. Topics that are covered include, from NO to HNO chemistry, peroxide activation in model porphyrin and enzymatic systems, the wonder-world of RuIII(edta) chemistry, redox chemistry of Ru(iii) complexes, Ru(ii) polypyridyl complexes and their application, relevant physicochemical properties and reaction mechanisms in ionic liquids, and mechanistic insight from computational chemistry. In each of these sections, typical examples of mechanistic studies are presented in reference to related work reported in the literature.
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Affiliation(s)
- Colin D Hubbard
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Egerlandstr. 1, 91058 Erlangen, Germany.
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Buchner MR. Beryllium coordination chemistry and its implications on the understanding of metal induced immune responses. Chem Commun (Camb) 2020; 56:8895-8907. [DOI: 10.1039/d0cc03802d] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The coordination chemistry of beryllium with ligands containing biologically relevant functional groups is discussed. The geometry, speciation and reactivity of these compounds, aids a better understanding of metal ion induced immune reactions.
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Affiliation(s)
- Magnus R. Buchner
- Anorganische Chemie
- Nachwuchsgruppe Hauptgruppenmetallchemie
- Fachbereich Chemie
- Philipps-Universität Marburg
- 35032 Marburg
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5
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Buchner MR. Recent Contributions to the Coordination Chemistry of Beryllium. Chemistry 2019; 25:12018-12036. [DOI: 10.1002/chem.201901766] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/03/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Magnus R. Buchner
- Anorganische Chemie, Nachwuchsgruppe BerylliumchemieFachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35032 Marburg Germany
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Yu HL, Wang WY, Hong B, Zong Y, Si YL, Hu ZQ. Variational first hyperpolarizabilities of 2,3-naphtho-15-crown-5 ether derivatives with cation-complexing: a potential and selective cation detector. Phys Chem Chem Phys 2016; 18:26487-26494. [DOI: 10.1039/c6cp04577d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When the crown ether and its cation derivatives display obvious contrasts in NLO properties, the NLO-based detection of cations is achieved.
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Affiliation(s)
- Hai-Ling Yu
- College of Resources and Environmental Science
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
| | - Wen-Yong Wang
- JiangSu XinHai Senior High School
- Jangsu
- People's Republic of China
| | - Bo Hong
- College of Resources and Environmental Science
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
| | - Ying Zong
- College of Resources and Environmental Science
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
| | - Yan-Ling Si
- College of Resources and Environmental Science
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
| | - Zhong-Qiang Hu
- College of Resources and Environmental Science
- Jilin Agricultural University
- Changchun 130118
- People's Republic of China
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7
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Quantum chemical investigations of the water exchange mechanism on [Al(III)(H₂O)₅(L)]²⁺ as a function of the donor strength of the anionic L. J Mol Model 2014; 20:2083. [PMID: 24531724 DOI: 10.1007/s00894-014-2083-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 11/03/2013] [Indexed: 10/25/2022]
Abstract
Water exchange reactions of the complexes Al(H₂O)₅(L)]²⁺·H₂O for L = →OCN⁻, F⁻, CF₃⁻, →NC⁻, →CN⁻, Cl⁻, Br⁻, H⁻, SH⁻, OH⁻, →NCO⁻, →NCS⁻, →SCN⁻, CF₃CH₂⁻, CH₃⁻, Et⁻, i-Pr⁻ and t-but⁻, were studied by DFT calculations (B3LYP/6-311+G**). The reactions follow a dissociative (D) pathway for Al(H₂O)₅(L)]²⁺·H₂O to form the five-coordinate intermediate [Al(H₂O)₄L]²⁺·2H₂O for the weaker donor ligands of the series. On increasing the donor strength of L, the five-coordinate intermediate becomes significantly more stable than the reactant state. At this point there is a mechanistic changeover to an associative (A) pathway for [Al(H₂O)₄L]²⁺·2H₂O as reactant to form a six-coordinate intermediate Al(H₂O)₅(L)]²⁺·H₂O. For some of the anionic ligands L = → NC⁻, →CN⁻, Cl⁻, OH⁻ and →SCN⁻) the energy gap between the reactant and intermediate states is small, such that the water exchange mechanism lies in the boarder of dissociative and associative pathways. The water exchange process involves cis- and trans-orientated transition states to form the product state that is similar to the reactant state.
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Alzoubi BM, Walther M, Puchta R, van Eldik R. Mechanistic Studies on Water‐Exchange Reactions in [Zn(H
2
O)
4
L]
2+
·2H
2
O for L = sp
2
, sp
3
Oxygen‐Donor Ligands: A DFT Approach. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201200956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Basam M. Alzoubi
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/vaneldik
- Department of Basic Science, Al‐Huson University College, Al‐Balqa Applied University, Irbid, Jordan
| | - Markus Walther
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/vaneldik
- Computer Chemistry Center, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/puchta
| | - Ralph Puchta
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/vaneldik
- Computer Chemistry Center, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/puchta
| | - Rudi van Eldik
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany, http://www.chemie.uni‐erlangen.de/vaneldik
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Walther M, Budimir A, Puchta R. Water exchange on beryllium complexes: part VIII – influence of neutral electron pair donors. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.739284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Markus Walther
- a Department of Chemistry and Pharmacy , University of Erlangen-Nürnberg – Egerlandstraße 1 – 91058 Erlangen , Germany
- b Department of Chemistry and Pharmacy, Computer Chemistry Center , University of Erlangen-Nürnberg , Nägelsbachstr. 25, 91052 Erlangen , Germany
| | - Ana Budimir
- c Faculty of Pharmacy and Biochemistry , University of Zagreb , A. Kovačića 1 – 10000 Zagreb , Croatia
| | - Ralph Puchta
- a Department of Chemistry and Pharmacy , University of Erlangen-Nürnberg – Egerlandstraße 1 – 91058 Erlangen , Germany
- b Department of Chemistry and Pharmacy, Computer Chemistry Center , University of Erlangen-Nürnberg , Nägelsbachstr. 25, 91052 Erlangen , Germany
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Kraus F, Baer SA, Buchner MR, Karttunen AJ. Reactions of Beryllium Halides in Liquid Ammonia: The Tetraammineberyllium Cation [Be(NH3)4]2+, its Hydrolysis Products, and the Action of Be2+ as a Fluoride-Ion Acceptor. Chemistry 2012; 18:2131-42. [DOI: 10.1002/chem.201103012] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Indexed: 11/09/2022]
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Walther M, Puchta R. Ligand exchange processes on solvated beryllium cations VII – water exchange on cationic [Be(H2O)3(Ln)]2+n (Ln: 4-O-Py−, Py, 4-(Py)-Py+, 3,5-(Py)2-Py2+, 3,4,5-(Py)3-Py3+). RSC Adv 2012. [DOI: 10.1039/c2ra20665j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Alzoubi BM, Walther M, Puchta R, van Eldik R. Apparent or real water exchange reactions on [Zn(H2O)4(L)]2+·2H2O (L = sp-nitrogen donor ligands)? A quantum chemical investigation. Dalton Trans 2012; 41:6932-41. [DOI: 10.1039/c2dt30158j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Basam M Alzoubi
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
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Walther M, Dücker-Benfer C, Puchta R. Ligand Exchange Processes on Solvated Beryllium Cations, VI . Hydrogen Chalcogenide Exchange on [Be(Chelate)Sol2]2+ (Chelate: CH3-O-C2H4-O-CH3, CH3-S-C2H4-S-CH3, CH3-Se-C2H4-Se-CH3; Sol: H2O, H2S, H2Se). Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Budimir A, Walther M, Puchta R, van Eldik R. Ligand Exchange Processes on Solvated Beryllium Cations V. Water Exchange on [Be(X)(H2O)3]+ (X: H-,F-, Cl-, Br-, OH-, CN-, NCNCN-)‡. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201000418] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Alzoubi B, Puchta R, van Eldik R. Ligand-Exchange Processes on Solvated Zinc Cations: Water Exchange on [Zn(H2O)4(L)]2+⋅2 H2O (L=Heterocyclic Ligand). Chemistry 2010; 16:7300-8. [DOI: 10.1002/chem.200902264] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Alzoubi B, Puchta R, van Eldik R. Ligand Exchange Processes on Solvated Zinc Cations - DFT Analysis of Hydrogen Cyanide Exchange on [Zn(HCN)6]2+. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Puchta R, Neumüller B, Dehnicke K. (Ph4P)2[Be3(μ-OH)3(H2O)6]Cl5: Kristallstruktur und DFT-Rechnungen. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200801360] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Puchta R, Alzoubi BM, van Eldik R. Hydrogen Cyanide Exchange on [Al(HCN)6]3+- A DFT Study. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200801246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Puchta R, Pasgreta E, van Eldik R. Ligand exchange processes on the smallest solvated alkali and alkaline earth metal cations: An experimental and theoretical approach. ADVANCES IN INORGANIC CHEMISTRY 2009. [DOI: 10.1016/s0898-8838(09)00209-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Puchta R, van Eldik R. Ligand Exchange Processes on Solvated Beryllium Cations. IV [Be(H2O)2(imidazole-based Chelate)]1). Z Anorg Allg Chem 2008. [DOI: 10.1002/zaac.200800256] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Puchta R, van Eldik R. Ligand‐Exchange Processes on Solvated Beryllium Cations. Part III. Helv Chim Acta 2008. [DOI: 10.1002/hlca.200890114] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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