1
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Oldengott JC, Schnack J, Glaser T. Optimization of Single‐Molecule Magnets by Suppression of Quantum Tunneling of the Magnetization. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jan Christian Oldengott
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Jürgen Schnack
- Fakultät für Physik Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
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2
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Sarkar P, Ghorai S, Chandra Paul G, Khannam M, Barman S, Mukherjee C. Synthesis, characterization and study on the dissimilar reactivity of a Ni(II)-bis(iminosemiquinone) complex core to ligand-appended hemilabile –CH2OH and –CH2NH2 units. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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3
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Oldengott J, Richthofen C, Walleck S, Stammler A, Bögge H, Glaser T. Trinuclear Triplesalophen Building Blocks with Terminal Cyanides and Implications for the Spin‐Polarization Mechanism for Low‐Spin Fe
III
and Cr
III
Ions. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jan Oldengott
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Carl‐Georg Richthofen
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Stephan Walleck
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
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4
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Hoeke V, Stammler A, Bögge H, Glaser T. Does Symmetry Influence the Properties of [Mn III6Cr III] 3+Single-Molecule Magnets? Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Veronika Hoeke
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
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5
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Maurya MR, Tomar R, Rana L, Avecilla F. Trinuclear Dioxidomolybdenum(VI) Complexes of Tritopic Phloroglucinol‐Based Ligands and Their Catalytic Applications for the Selective Epoxidation of Olefins. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800440] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mannar R. Maurya
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee India
| | - Reshu Tomar
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee India
| | - Lata Rana
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee India
| | - Fernando Avecilla
- Departamento de Química Fundamental Universidade da Coruña Campus de A Zapateira 15071 A Coruña Spain
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6
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Lippert KA, Mukherjee C, Broschinski JP, Lippert Y, Walleck S, Stammler A, Bögge H, Schnack J, Glaser T. Suppression of Magnetic Quantum Tunneling in a Chiral Single-Molecule Magnet by Ferromagnetic Interactions. Inorg Chem 2017; 56:15119-15129. [DOI: 10.1021/acs.inorgchem.7b02453] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai-Alexander Lippert
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Chandan Mukherjee
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Jan-Philipp Broschinski
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Yvonne Lippert
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Stephan Walleck
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Jürgen Schnack
- Fakultät für Physik, Universität Bielefeld, Universitätsstrasse
25, D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
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7
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Weber B, Kaps E, Dankhoff K. Synthesis of a New Schiff Base-like Trinucleating Ligand and its Copper, Vanadyl, and Iron Complexes - Influence of the Bridging Ligand on the Magnetic Properties. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Birgit Weber
- Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | - Eike Kaps
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstr. 5-13 81377 München Germany
| | - Katja Dankhoff
- Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
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8
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Jalba A, Régnier N, Ollevier T. Enantioselective Aromatic Sulfide Oxidation and Tandem Kinetic Resolution Using Aqueous H2O2and Chiral Iron-Bis(oxazolinyl)bipyridine Catalysts. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601597] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Angela Jalba
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
| | - Noémie Régnier
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
| | - Thierry Ollevier
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
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9
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Yadav M, Bhunia A, Jana SK, Roesky PW. Manganese- and Lanthanide-Based 1D Chiral Coordination Polymers as an Enantioselective Catalyst for Sulfoxidation. Inorg Chem 2016; 55:2701-8. [DOI: 10.1021/acs.inorgchem.5b02234] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Munendra Yadav
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Asamanjoy Bhunia
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Salil K. Jana
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse
15, 76131 Karlsruhe, Germany
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10
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Olivo G, Lanzalunga O, Di Stefano S. Non-Heme Imine-Based Iron Complexes as Catalysts for Oxidative Processes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501024] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Heptanuclear [FeIII6CrIII]3+ Complexes Experimentally Studied by Means of Magnetometry, X-ray Diffraction, XAS, XMCD and Spin-Polarized Electron Spectroscopy in Cross-Comparison with [MnIII6CrIII]3+ Single-Molecule Magnets. MAGNETOCHEMISTRY 2016. [DOI: 10.3390/magnetochemistry2010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Ghorai S, Sarmah A, Roy RK, Tiwari A, Mukherjee C. Effect of Geometrical Distortion on the Electronic Structure: Synthesis and Characterization of Monoradical-Coordinated Mononuclear Cu(II) Complexes. Inorg Chem 2016; 55:1370-80. [PMID: 26812584 DOI: 10.1021/acs.inorgchem.5b01257] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ligand H3Sami(Mixed(tBu)) was composed of two different compartments, a redox-active 2-aminophenol and a salen salicylidene. Both compartments were linked via a benzyl linker. The ligand reacted with CuCl2·2H2O under air in the presence of Et3N and provided the corresponding monoradical-coordinated mononuclear Cu(II) complex (1). Complex 1, in solution, reacted with air and provided complex 2 via ligand-centered oxygenation at the benzyl-CH2 position. Both complexes were characterized via IR, mass spectrometry, X-ray single-crystal diffraction, variable-temperature magnetic susceptibility, cyclic voltammograms (CVs), and UV-vis/NIR spectroscopic techniques. X-ray crystallographic analyses clearly showed almost equally distorted square planar geometry around the Cu(II) atom in both complexes. However, the bending of the radical-containing C6 ring compared to the N1-Cu1-O1 plane was different in both complexes. While complex 1 was paramagnetic and showed a ferromagnetic coupling between the d(x(2)-y(2)) magnetic orbital of Cu(II) ion and the p(z) orbital of coordinated π-radical, complex 2 was diamagnetic by experiencing a strong antiferromagnetic coupling between the two magnetic orbitals. UV-vis/NIR spectra of the complexes were dominated by charge-transfer transitions. CVs of the complexes showed two reversible one-electron oxidations and one reversible one-electron reduction. E(1/2)(ox2) and E(1/2)(red1) potentials were different in both complexes, while E(1/2)(ox1) values were almost the same and the process corresponded to the formation of phenoxyl radical. Theoretical studies were also performed to understand the magnetic coupling phenomena, and TD-DFT calculations were employed for the assignment of charge-transfer absorption bands.
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Affiliation(s)
- Samir Ghorai
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati, 781039 Assam, India
| | - Amrit Sarmah
- Department of Chemistry, Birla Institute of Technology and Science (BITS) , Pilani, 333031 Rajasthan, India
| | - Ram Kinkar Roy
- Department of Chemistry, Birla Institute of Technology and Science (BITS) , Pilani, 333031 Rajasthan, India
| | - Archana Tiwari
- Department of Physics, School of Physical Sciences, Sikkim University , Gangtok 737102 Sikkim, India
| | - Chandan Mukherjee
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati, 781039 Assam, India
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13
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Mohammadnezhad G, Debel R, Plass W. Molybdenum(VI)-promoted sulfoxidation in the presence of tridentate sugar-based Schiff-base ligands. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.09.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Oldengott J, Stammler A, Bögge H, Glaser T. Enhancing the ferromagnetic coupling in extended phloroglucinol complexes by increasing the metal SOMO–ligand overlap: synthesis and characterization of a trinuclear CoII3 triplesalophen complex. Dalton Trans 2015; 44:9732-5. [DOI: 10.1039/c5dt01255d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The better overlap of the SOMO with the central π-system in the CoII3 than in the CuII3 complex enhances the spin-polarization and thus the ferromagnetic coupling.
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Affiliation(s)
- Jan Oldengott
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
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15
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16
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Bal-Demirci T, Congur G, Erdem A, Erdem-Kuruca S, Özdemir N, Akgün-Dar K, Varol B, Ülküseven B. Iron(iii) and nickel(ii) complexes as potential anticancer agents: synthesis, physicochemical and structural properties, cytotoxic activity and DNA interactions. NEW J CHEM 2015. [DOI: 10.1039/c5nj00594a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The iron complex 3 was cytotoxic at low concentrations in K562 cells and could damage the DNA, specifically the adenine base.
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Affiliation(s)
- Tülay Bal-Demirci
- Department of Chemistry
- Engineering Faculty
- İstanbul University
- İstanbul
- Turkey
| | - Gulsah Congur
- Ege University
- Faculty of Pharmacy
- Analytical Chemistry Department
- İzmir
- Turkey
| | - Arzum Erdem
- Ege University
- Faculty of Pharmacy
- Analytical Chemistry Department
- İzmir
- Turkey
| | - Serap Erdem-Kuruca
- Department of Physiology
- İstanbul Medical Faculty
- İstanbul University
- İstanbul
- Turkey
| | - Namık Özdemir
- Department of Physics
- Faculty of Arts and Sciences
- Ondokuz Mayıs University
- Samsun
- Turkey
| | - Kadriye Akgün-Dar
- Department of Biology
- İstanbul Science Faculty
- İstanbul University
- İstanbul
- Turkey
| | - Başak Varol
- Department of Biophysic
- İstanbul Medical Faculty
- İstanbul University
- İstanbul
- Turkey
| | - Bahri Ülküseven
- Department of Chemistry
- Engineering Faculty
- İstanbul University
- İstanbul
- Turkey
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17
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Bera PK, Gupta N, Abdi SHR, Khan NUH, Kureshy RI, Bajaj HC. Bimetallic titanium complex catalyzed enantioselective oxidation of thioethers using aqueous H2O2 as a terminal oxidant. RSC Adv 2015. [DOI: 10.1039/c5ra06528c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study represents a highly efficient sulfide oxidation catalytic system using a non-toxic Ti-catalyst and environmentally benign aqueous hydrogen peroxide.
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Affiliation(s)
- Prasanta Kumar Bera
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
| | - Naveen Gupta
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Noor-ul H. Khan
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Hari C. Bajaj
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- India
- Academy of Scientific and Innovative Research (AcSIR)
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18
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Feldscher B, Stammler A, Bögge H, Glaser T. Aromatic Versus Heteroradialene Character in Extended Thiophloroglucinol Ligands and their Trinuclear Nickel(II) Complexes. Chem Asian J 2014; 9:2205-18. [DOI: 10.1002/asia.201402272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Indexed: 11/11/2022]
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19
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Freiherr von Richthofen CG, Feldscher B, Lippert KA, Stammler A, Bögge H, Glaser T. Electronic and Molecular Structures of Heteroradialenes: A Combined Synthetic, Computational, Spectroscopic, and Structural Study Identifying IR Spectroscopy as a Simple but Powerful Experimental Probe. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2014. [DOI: 10.5560/znb.2013-2241] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The vicinity of a hydrogen bond donor (O-H) and a hydrogen bond acceptor (C=O or C=N- R) in salicylaldehydes and ortho-Schiff bases results in significant structural variations compared to the monosubstituted derivatives that are reflected in the electronic structure and thus in the spectroscopic properties. This interplay between intramolecular hydrogen bonding and multicenter p- electron delocalization is the origin of the concept of resonance-assisted hydrogen bonding (RAHB). Herein, the complexity is extended from one hydrogen bond donor-acceptor pair in salicylaldehyde and ortho-Schiff bases to three hydrogen bond donor-acceptor pairs in 2,4,6-tricarbonyl- and 2,4,6- triimine-substituted phloroglucinols (1,3,5-trihydroxybenzene), respectively. To evaluate the changes in the molecular and electronic structures, we have performed a comprehensive computational, spectroscopic, and structural study starting from monosubstituted benzene derivatives as references over ortho-disubstituted derivates to the sixfold-substituted derivatives. Whereas in salicylaldehydes, ortho- Schiff bases, and 2,4,6-tricarbonyl-phloroglucinols the phenolic O-protonated tautomers represent the energy minima, the N-protonated tautomers represent the energy minima in 2,4,6-triiminephloroglucinols. The analysis provides a keto-enamine resonance structure with six exocyclic double bonds to be dominant for these species reminiscent of [6]radialenes, which were termed heteroradialenes. These heteroradialenes are non-aromatic alicycles. However, the predominance of this resonance structure does not represent a sudden change going from the 2,4,6-tricarbonyl- to the 2,4,6-triimine-phloroglucinols, but a gradual increase of analogous resonance structure contributions is observed even in salicylaldehyde and ortho-Schiff bases demonstrating some hetero-orthoquinodimethane character. These changes are, besides in the molecular structures, well reflected in the IR spectra, which can therefore be used as a simple tool to probe the electronic structures in these systems. Interruption of the delocalized p system supporting the intramolecular hydrogen bond, i. e. going from 2,4,6-triimine- to 2,4,6-triamine-substituted phloroglucinols, reestablishes an O-protonated aromatic phloroglucinol system.
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Affiliation(s)
| | - Bastian Feldscher
- Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Kai-Alexander Lippert
- Lippert Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
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20
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Ghorai S, Mukherjee C. Effect of ligand substituent on the reactivity of Ni(II) complexes towards oxygen. Dalton Trans 2014; 43:394-7. [PMID: 24449945 DOI: 10.1039/c3dt52072b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two radical-containing Ni(II) complexes having either parent salicylidene (complex 1) or 3,5-di-tert-butylsalicylidene (complex 2) in the ligand backbone were synthesized. Complex 2 underwent ligand centered C–H activation by aerial oxygen, forming the corresponding amide complex (2a). The UV-Vis/NIR spectral changes upon purging of molecular oxygen to 2 in CH2Cl2, alongwith ESI-MS analysis indicated the generation of Ni–oxygen/dioxygen species as the intermediate(s) for the amide formation. Interestingly, nonparticipation of the ligand centered π-radical in the oxidation process was observed.
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21
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Feldscher B, Theil H, Stammler A, Bögge H, Glaser T. A streamlined synthesis of extended thiophloroglucinol ligands and their trinuclear NiII3 complexes. Dalton Trans 2014; 43:4102-14. [DOI: 10.1039/c3dt53457j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Mukherjee C, Hoeke V, Stammler A, Bögge H, Schnack J, Glaser T. Switching from antiferromagnetic to ferromagnetic coupling in heptanuclear [Mt6Mc]n+ complexes by going from an achiral to a chiral triplesalen ligand. Dalton Trans 2014; 43:9690-703. [DOI: 10.1039/c4dt00670d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The heptanuclear complexes [(chandRR)2Mt6{FeII(CN)6}]2+ (Mt = MnIII, FeIII) exhibit ferromagnetic interactions due to a more efficient spin-polarization mechanism compared to the complexes [(talent-Bu2)2Mt6{Mc(CN)6}]n+ with antiferromagnetic interactions.
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Affiliation(s)
- Chandan Mukherjee
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Veronika Hoeke
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Jürgen Schnack
- Fakultät für Physik
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
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23
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Clarke RM, Storr T. The chemistry and applications of multimetallic salen complexes. Dalton Trans 2014; 43:9380-91. [DOI: 10.1039/c4dt00591k] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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Happ P, Rentschler E. Enforcement of a high-spin ground state for the first 3d heterometallic 12-metallacrown-4 complex. Dalton Trans 2014; 43:15308-12. [DOI: 10.1039/c4dt02275k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Applying a novel magnetic director approach, we have realized Cu(ii)(DMF)2Cl2[12-MCFe(III)N(Shi)-4](DMF)4·2DMF as the first heterometallic transition metal 12-MC-4 complex in order to provide this type of compound with a high-spin ground state.
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Affiliation(s)
- Peter Happ
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
- Graduate School Materials Science in Mainz
- D-55128 Mainz, Germany
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
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25
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Dunn TJ, Chiang L, Ramogida CF, Hazin K, Webb MI, Katz MJ, Storr T. Class III Delocalization and Exciton Coupling in a Bimetallic Bis-ligand Radical Complex. Chemistry 2013; 19:9606-18. [DOI: 10.1002/chem.201300798] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 11/07/2022]
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26
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Exchange coupling mediated by extended phloroglucinol ligands: Spin-polarization vs. heteroradialene-formation. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.05.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Ion AE, Nica S, Madalan AM, Lloret F, Julve M, Andruh M. C3-symmetric trinuclear copper(ii) species as tectons in crystal engineering. CrystEngComm 2013. [DOI: 10.1039/c2ce26469b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Feldscher B, Stammler A, Bögge H, Glaser T. From Triplesalen to Triplesalalen and Triplesalan - Strengthening the Aromatic Character of the Ligand Backbone in Extended Phloroglucinol Ligands by Prevention of Heteroradialene Formation. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200993] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Buchholz A, Eseola AO, Plass W. Slow magnetic relaxation in mononuclear tetrahedral cobalt(II) complexes with 2-(1H-imidazol-2-yl)phenol based ligands. CR CHIM 2012. [DOI: 10.1016/j.crci.2012.07.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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30
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Vigato P, Peruzzo V, Tamburini S. Acyclic and cyclic compartmental ligands: Recent results and perspectives. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.01.009] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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An inverted triplesalen ligand by a convergent synthesis and its influence on trinuclear FeIII 3 complexes. Sci China Chem 2012. [DOI: 10.1007/s11426-012-4598-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Diaz C, Frazer A, Morales A, Belfield KD, Ray S, Hernández FE. Structural Identification of a Novel Axially Chiral Binaphthyl Fluorene Based Salen Ligand in Solution Using Electronic Circular Dichroism: A Theoretical–Experimental Analysis. J Phys Chem A 2012; 116:2453-65. [DOI: 10.1021/jp2112507] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Carlos Diaz
- Department of Chemistry, University
of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366,
United States
| | - Andrew Frazer
- Department of Chemistry, University
of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366,
United States
| | - Alma Morales
- Department of Chemistry, University
of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366,
United States
| | - Kevin D. Belfield
- Department of Chemistry, University
of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366,
United States
- The College
of Optics and Photonics,
CREOL, University of Central Florida, P.O. Box 162366, Orlando, Florida
32816-2366, United States
| | - Supriyo Ray
- Department of Physics, University
of Central Florida, P.O. Box 162385, Orlando, Florida 32816-2385,
United States
| | - Florencio E. Hernández
- Department of Chemistry, University
of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366,
United States
- The College
of Optics and Photonics,
CREOL, University of Central Florida, P.O. Box 162366, Orlando, Florida
32816-2366, United States
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33
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Freiherr von Richthofen CG, Stammler A, Bögge H, Glaser T. Probing the Radialene-Character in Triplesalophen Ligands by Spectroscopic and Structural Analysis. J Org Chem 2012; 77:1435-48. [DOI: 10.1021/jo202273s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Anja Stammler
- Lehrstuhl für Anorganische
Chemie I, Fakultät
für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische
Chemie I, Fakultät
für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische
Chemie I, Fakultät
für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
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34
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Dunn TJ, Chiang L, Ramogida CF, Webb MI, Savard D, Sakaguchi M, Ogura T, Shimazaki Y, Storr T. Non-innocent ligand behaviour of a bimetallic Cu complex employing a bridging catecholate. Dalton Trans 2012; 41:7905-14. [DOI: 10.1039/c2dt30444a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Feldscher B, Stammler A, Bögge H, Glaser T. Synthesis and characterization of trinuclear square-planar NiII3 and CuII3 complexes of an extended phloroglucinol ligand: Experimental evidence for the relative contributions of benzene-like and radialene-like resonance structures. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.02.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Plaul D, Plass W. Phloroglucinol-bridged trinuclear complexes with three paramagnetic octahedral nickel(II) ions: Syntheses, crystal structures, and magnetic properties. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.03.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Mastalerz M, Oppel IM. Synthesis of Tetrahedral Shape-Persistent Tetranuclear Metal-salphens. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100745] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Dunn TJ, Ramogida CF, Simmonds C, Paterson A, Wong EWY, Chiang L, Shimazaki Y, Storr T. Non-Innocent Ligand Behavior of a Bimetallic Ni Schiff-Base Complex Containing a Bridging Catecholate. Inorg Chem 2011; 50:6746-55. [DOI: 10.1021/ic200785g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Tim J. Dunn
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Caterina F. Ramogida
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Curtis Simmonds
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Alisa Paterson
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Edwin W. Y. Wong
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Linus Chiang
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
| | - Yuichi Shimazaki
- College of Science, Ibaraki University, Bunkyo, Mito 310-8512, Japan
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A-1S6, Canada
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39
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Glaser T. Rational design of single-molecule magnets: a supramolecular approach. Chem Commun (Camb) 2011; 47:116-30. [DOI: 10.1039/c0cc02259d] [Citation(s) in RCA: 190] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Freiherr von Richthofen CG, Stammler A, Bögge H, Glaser T. From Triplesalen to Triplesalophen: Ferromagnetic Interactions through Spin-Polarization in a Trinuclear NiII Triplesalophen Complex. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201001018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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