1
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Biegański P, Kovalski E, Israel N, Dmitrieva E, Trzybiński D, Woźniak K, Vrček V, Godel M, Riganti C, Kopecka J, Lang H, Kowalski K. Electronic Coupling in 1,2,3-Triazole Bridged Ferrocenes and Its Impact on Reactive Oxygen Species Generation and Deleterious Activity in Cancer Cells. Inorg Chem 2022; 61:9650-9666. [PMID: 35699521 PMCID: PMC9490837 DOI: 10.1021/acs.inorgchem.2c01110] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
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Mixed-valence (MV)
binuclear ferrocenyl compounds have long been
studied as models for testing theories of electron transfer and in
attempts to design molecular-scale electronic devices (e.g., molecular wires). In contrary to that, far less attention has
been paid to MV binuclear ferrocenes as anticancer agents. Herein,
we discuss the synthesis of six 1,2,3-triazole ferrocenyl compounds
for combined (spectro)electrochemical, electron paramagnetic resonance
(EPR), computational, and anticancer activity studies. Our synthetic
approach was based on the copper-catalyzed 1,3-dipolar azide–alkyne
cycloaddition reaction and enabled us to obtain in one step compounds
bearing either one, two, or three ferrocenyl entities linked to the
common 1,2,3-triazole core. Thus, two series of complexes were obtained,
which pertain to derivatives of 3′-azido-3′-deoxythymidine
(AZT) and 3-azidopropionylferrocene, respectively. Based on the experimental
and theoretical data, the two mono-oxidized species corresponding
to binuclear AZT and trinuclear 3-azidopropionylferrocene complexes
have been categorized as class II mixed-valence according to the classification
proposed by Robin and Day. Of importance is the observation that these
two compounds are more active against human A549 and H1975 non-small-cell
lung cancer cells than their congeners, which do not show MV characteristics.
Moreover, the anticancer activity of MV species competes or surpasses,
dependent on the cell line, the activity of reference anticancer drugs
such as cisplatin, tamoxifen, and 5-fluorouracil. The most active
from the entire series of compounds was the binuclear thymidine derivative
with the lowest IC50 value of 5 ± 2 μM against
lung H1975 cancer cells. The major mechanism of antiproliferative
activity for the investigated MV compounds is based on reactive oxygen
species generation in cancer cells. This hypothesis was substantiated
by EPR spin-trapping experiments and the observation of decreased
anticancer activity in the presence of N-acetyl cysteine
(NAC) free-radical scavenger. The
1,2,3-triazole bridged bi- and triferrocenyl compounds
were prepared via a “click” reaction.
Their corresponding mono-oxidized forms have been categorized as class
II MV species. The biferrocenyl thymidine derivative showed remarkable
anticancer activity against human A549 and H1975 cancer cells and
negligible activity against nonmalignant human BEAS-2B cells. The
anticancer activity mechanism is mainly due to ROS generation, and
it originates from the combination of electronic coupling and the
thymidine moiety, combined all together in one molecular scaffold.
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Affiliation(s)
- Przemysław Biegański
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Eduard Kovalski
- Institut für Chemie, Anorganische Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Noel Israel
- Leibniz Institute for Solid State and Materials Research (IFW Dresden), Helmholtzstraße 20, D-01069 Dresden, Germany
| | - Evgenia Dmitrieva
- Leibniz Institute for Solid State and Materials Research (IFW Dresden), Helmholtzstraße 20, D-01069 Dresden, Germany
| | - Damian Trzybiński
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Krzysztof Woźniak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Valerije Vrček
- Department of Organic Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Martina Godel
- Department of Oncology, University of Torino, via Santena 5/bis, 10126 Turin, Italy
| | - Chiara Riganti
- Department of Oncology, University of Torino, via Santena 5/bis, 10126 Turin, Italy
| | - Joanna Kopecka
- Department of Oncology, University of Torino, via Santena 5/bis, 10126 Turin, Italy
| | - Heinrich Lang
- Institut für Chemie, Anorganische Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Straße der Nationen 62, D-09107 Chemnitz, Germany.,MAIN Research Center, Technische Universität Chemnitz, Rosenbergstraße 6, 09126 Chemnitz, Germany
| | - Konrad Kowalski
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
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2
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Sindhu M, Kalaivani P, Prabhakaran R. Enhanced anticancer property of bio‐organometallic nano composites: Design, characterization, and biological evaluation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mathiyazhagan Sindhu
- Department of Chemistry, Nirmala College for Women Bharathiar University Coimbatore India
| | - Palaniappan Kalaivani
- Department of Chemistry, Nirmala College for Women Bharathiar University Coimbatore India
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3
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Hildebrandt A, Kovalski E, Korb M. (Spectro)electrochemical Properties of Anthracene Containing Triarylamine Platinum(II) Acetylides. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexander Hildebrandt
- Technische Universität Dresden, Carl Gustav Carus Faculty of Medicine Department of Anesthesiology and Intensive Care Medicine Clinical Sensoring and Monitoring Fetscherstr. 74 01307 Dresden Germany
- Technische Universität Chemnitz Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
| | - Eduard Kovalski
- Technische Universität Chemnitz Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
| | - Marcus Korb
- Technische Universität Chemnitz Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
- The University of Western Australia Faculty of Science, School of Molecular Sciences Crawley Perth WA 6009 Australia
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4
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Scharf S, Kovalski E, Rüffer T, Hildebrandt A, Lang H. Ru
II
and Ru
III
Chloronitrile Complexes: Synthesis, Reaction Chemistry, Solid State Structure, and (Spectro)Electrochemical Behavior. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sebastian Scharf
- Inorganic Chemistry Faculty of Natural Sciences, Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Eduard Kovalski
- Inorganic Chemistry Faculty of Natural Sciences, Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Tobias Rüffer
- Inorganic Chemistry Faculty of Natural Sciences, Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Alexander Hildebrandt
- Inorganic Chemistry Faculty of Natural Sciences, Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Heinrich Lang
- Inorganic Chemistry Faculty of Natural Sciences, Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
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5
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Gottwald D, Yuan Q, Speck M, Mahrholdt J, Korb M, Schreiter K, Spange S, Lang H. Synthesis and (spectro)electrochemistry of 1′,1′′′-disubstituted biferrocenes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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Korb M, Liu X, Walz S, Rosenkranz M, Dmitrieva E, Popov AA, Lang H. (Electrochemical) Properties and Computational Investigations of Ferrocenyl-substituted Fe 3(μ 3-PFc) 2(CO) 9 and Co 4(μ 4-PFc) 2(CO) 9 Clusters and Their Reduced Species. Inorg Chem 2020; 59:6147-6160. [PMID: 32323982 DOI: 10.1021/acs.inorgchem.0c00276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The formation of ferrocenyl-functionalized iron and cobalt carbonyl clusters is reported, based on a reaction of FcPCl2 (3) (Fc = Fe(η5-C5H5)(η5-C5H4)) with Fe2(CO)9 and Co2(CO)8, respectively. Therein, nido-Fe3(CO)9(μ3-PFc)2 (4) and nido-Co4(CO)10(μ3-PFc)2 (5) clusters were obtained as the first diferrocenyl-substituted carbonyl clusters with a symmetrical cluster core. Cluster 4 shows two reversible one-electron processes within the anodic region, based on Fc/Fc+ redox events, as well as two processes in the cathodic region. In situ IR and electron paramagnetic resonance (EPR) measurements of all electronic states confirmed an Fc-based oxidation and a core-based reduction. On the basis of the results of a single-crystal X-ray analysis of structures of 4 and 5, computational studies of the highest occupied molecular orbital-lowest unoccupied molecular orbital energies, the spin density, quantum theory of atom-in-molecule delocalization indices, and the atomic charges were performed to explain the experimental results. The latter revealed a reorganization of the cluster core upon reduction and the existence of weak P···P interactions in 4 and 5. Ferrocenyl-related redox processes, occurring reversibly in case of 4, were absent for 5, due to a different distribution of the HOMO energies. EPR measurements furthermore confirmed the core-based radical anion and the formation of a decomposition product at potentials lower than [M]2- (M = Fe, Co).
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Affiliation(s)
- Marcus Korb
- Faculty of Sciences, School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, 6009 Crawley, Perth, Western Australia, Australia
| | - Xianming Liu
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Sebastian Walz
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Marco Rosenkranz
- Leibniz Institute for Solid State and Materials Research (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Evgenia Dmitrieva
- Leibniz Institute for Solid State and Materials Research (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Heinrich Lang
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, D-09107 Chemnitz, Germany.,Center for Materials, Architectures and Integration of Nanomembranes, Rosenbergstr. 6, D-09126 Chemnitz, Germany
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7
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Preuß A, Notz S, Kovalski E, Korb M, Blaudeck T, Hu X, Schuster J, Miesel D, Rüffer T, Hildebrandt A, Schreiter K, Spange S, Schulz SE, Lang H. Ferrocenyl-Pyrenes, Ferrocenyl-9,10-Phenanthrenediones, and Ferrocenyl-9,10-Dimethoxyphenanthrenes: Charge-Transfer Studies and SWCNT Functionalization. Chemistry 2020; 26:2635-2652. [PMID: 31650632 PMCID: PMC7064959 DOI: 10.1002/chem.201904450] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 11/06/2022]
Abstract
The synthesis of 1-Fc- (3), 1-Br-6-Fc- (5 a), 2-Br-7-Fc- (7 a), 1,6-Fc2 - (5 b), 2,7-Fc2 -pyrene (7 b), 3,6-Fc2 -9,10-phenanthrenedione (10), and 3,6-Fc2 -9,10-dimethoxyphenanthrene (12; Fc=Fe(η5 -C5 H4 )(η5 -C5 H5 )) is discussed. Of these compounds, 10 and 12 form 1D or 2D coordination polymers in the solid state. (Spectro)Electrochemical studies confirmed reversible Fc/Fc+ redox events between -130 and 160 mV. 1,6- and 2,7-Substitution in 5 a (E°'=-130 mV) and 7 a (E°'=50 mV) influences the redox potentials, whereas the ones of 5 b and 7 b (E°'=20 mV) are independent. Compounds 5 b, 7 b, 10, and 12 show single Fc oxidation processes with redox splittings between 70 and 100 mV. UV/Vis/NIR spectroelectrochemistry confirmed a weak electron transfer between FeII /FeIII in mixed-valent [5 b]+ and [12]+ . DFT calculations showed that 5 b non-covalently interacts with the single-walled carbon nanotube (SWCNT) sidewalls as proven by, for example, disentangling experiments. In addition, CV studies of the as-obtained dispersions confirmed exohedral attachment of 5 b at the SWCNTs.
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Affiliation(s)
- Andrea Preuß
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Sebastian Notz
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Eduard Kovalski
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Marcus Korb
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Current address: Faculty of Science, School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Thomas Blaudeck
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Xiao Hu
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Jörg Schuster
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Dominique Miesel
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Tobias Rüffer
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Alexander Hildebrandt
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Katja Schreiter
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan Spange
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan E Schulz
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Heinrich Lang
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
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8
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Ghazzy A, Taher D, Helal W, Korb M, Khalyfeh K, Awwadi FF, Al-Shewiki RK, Weheabby S, Al-Said N, Abu-Orabi ST, Lang H. Aryl ferrocenylmethylesters: Synthesis, solid-state structure and electrochemical investigations. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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9
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Hildebrandt A, Miesel D, Yuan Q, Freytag J, Mahrholdt J, Lang H. Anion and solvent dependency of the electronic coupling strength in mixed valent class II systems. Dalton Trans 2019; 48:13162-13168. [PMID: 31451808 DOI: 10.1039/c9dt03121a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The influence of the coordination and ion pairing properties of electrolyte anions on electronic coupling in cationic class II mixed valent species was studied. In order to cover a range of electronic coupling strengths within the class II regime, weakly coupled 2,5-diferrocenyl-3,4-thiadiazol, moderately coupled 2,5-diferrocenyl thiophene and strongly coupled N-(4-dimethylaminophenyl)-2,5-diferrocenyl-1H-pyrrole were chosen as analytes. The electrochemical properties of these compounds were determined by cyclic and square wave voltammetry using electrolytes with varying ion pairing capabilities, such as [NBu4][Cl], [NBu4][PF6] and [NBu4][BArF] ([NBu4][B(C6F5)4]), as well as solvents with increasing dielectric constants (dichloromethane (εr = 8.93), acetone (εr = 20.56), acetonitrile (εr = 35.94) and propylene carbonate (εr = 64.92)). It is shown that the choice of electrolyte has a considerable impact on the electrostatic and the electron transfer features of the mixed valent compounds when solvents of low polarity and low relative permittivity such as dichloromethane are used. For the use of more polar solvents such as propylene carbonate the electrochemical and spectroscopic properties are almost electrolyte independent. The solvatochromic and ion-related changes in the spectroscopic properties are most pronounced for weakly coupled systems and decrease with an increase in the electron transfer coupling strength.
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Affiliation(s)
- Alexander Hildebrandt
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Dominique Miesel
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Qing Yuan
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Janine Freytag
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Julia Mahrholdt
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
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10
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Speck JM, Korb M, Hildebrandt A, Lang H. Synthesis and Electrochemical Investigations of [Ru(η
5
‐Ferrocenyl‐Thiophene)(η
5
‐C
5
R
5
)]
+
Sandwich Compounds. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J. Matthäus Speck
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
| | - Marcus Korb
- University of Western Australia School of Molecular Sciences, M310 6009 Perth WA Australia
| | - Alexander Hildebrandt
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
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11
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Roy SS, Patra SK. Synthesis and Characterization of Diferrocenyl Conjugates: Varying π-Conjugated Bridging Ligands and its Consequence on Electrochemical Communication. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sourav Saha Roy
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Sanjib K. Patra
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
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12
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Preuß A, Korb M, Miesel D, Rüffer T, Hildebrandt A, Lang H. Ferrocenyl naphthalenes: substituent- and substitution pattern-depending charge transfer studies. Dalton Trans 2019; 48:14418-14432. [DOI: 10.1039/c9dt03216a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis and characterisation of a series of ferrocenyl-functionalized naphthalenes is reported, whereby the electrochemical behaviour and charge transfer properties depend on the substitution pattern.
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Affiliation(s)
- Andrea Preuß
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Marcus Korb
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Dominique Miesel
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Tobias Rüffer
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Alexander Hildebrandt
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Heinrich Lang
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
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13
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Muraoka H, Ozawa K, Ogawa S. Electrochemical studies of the multi-step multi-electron redox process of tetraferrocenyloligothiophenes with electron donor and acceptor abilities. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hiroki Muraoka
- Department of Chemistry and Biological Sciences; Faculty of Science and Engineering; Iwate University; Morioka Iwate Japan
| | - Kouhei Ozawa
- Department of Chemistry and Biological Sciences; Faculty of Science and Engineering; Iwate University; Morioka Iwate Japan
| | - Satoshi Ogawa
- Department of Chemistry and Biological Sciences; Faculty of Science and Engineering; Iwate University; Morioka Iwate Japan
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14
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Rossi S, Bisello A, Cardena R, Santi S. Testing the Conjugative Properties of Benzodithiophene and Benzotrithiophene in Charge Transfer Multi(ferrocenyl) Systems. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Serena Rossi
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Annalisa Bisello
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Roberta Cardena
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Saverio Santi
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
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15
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Speck JM, Korb M, Hildebrandt A, Lang H. Ferrocenyl‐Functionalized η
5
‐Thiophene Cr(CO)
3
Half‐Sandwich Compounds. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- J. Matthäus Speck
- Department of Inorganic Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Marcus Korb
- Department of Inorganic Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Alexander Hildebrandt
- Department of Inorganic Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Heinrich Lang
- Department of Inorganic Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
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16
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Antuf’eva AD, Dmitriev MV, Maiorova OA, Mokrushin IG, Galeev AR, Shklyaeva EV, Abashev GG. New π-Conjugated Ferrocenyl-Substituted Heterocyclic Systems Containing Electron-Deficient Aromatic Nitrogen Heterocycles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018090142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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The role of the anion in the charge transfer properties of mixed-valent biferrocene. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.07.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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19
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Frenzel P, Korb M, Hildebrandt A, Lang H. Synthesis and Electrochemical Behavior of Ferrocenyl
‐
Functionalized Metallocenes M(η
5
‐
C
5
H
5
)
2
(EFc)
2
(M = Ti, Zr; E = O, S, Se). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800178] [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)
- Peter Frenzel
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Marcus Korb
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Alexander Hildebrandt
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
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20
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21
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Miesel D, Korb M, Hildebrandt A, Lang H. Synthesis and crystal structure of an acetylenic ferrocenyl substituted phosphaalkene. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Lang H. Organometallic π-tweezers and 1,1′-bis(diphenylphosphanyl)ferrocene as bidentate chelating ligands for the synthesis of heteromultimetallic compounds. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.09.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Pienkos JA, Webster AB, Piechota EJ, Agakidou AD, McMillen CD, Pritchett DY, Meyer GJ, Wagenknecht PS. Oxidatively stable ferrocenyl-π-bridge-titanocene D–π-A complexes: an electrochemical and spectroscopic investigation of the mixed-valent states. Dalton Trans 2018; 47:10953-10964. [DOI: 10.1039/c8dt01853g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coordination of CuI into RCp2Ti(C2Fc)2 compounds results in well-separated FeIII/II couples and mixed-valent states with distinct spectroscopic signatures.
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Affiliation(s)
| | | | - Eric J. Piechota
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| | | | | | | | - Gerald J. Meyer
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill
- USA
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24
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Rossi S, Bisello A, Cardena R, Orian L, Santi S. Benzodithiophene and Benzotrithiophene as π Cores for Two- and Three-Blade Propeller-Shaped Ferrocenyl-Based Conjugated Systems. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Serena Rossi
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Annalisa Bisello
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Roberta Cardena
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Laura Orian
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Saverio Santi
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
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25
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Ferrocenyl thiocarboxylates: Synthesis, solid-state structure and electrochemical investigations. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Taher D, Awwadi FF, Speck JM, Korb M, Schaarschmidt D, Weheabby S, Habashneh AY, Al-Noaimi M, El-Khateeb M, Abu-Orabi ST, Lang H. Heterocyclic-based ferrocenyl carboselenolates: Synthesis, solid-state structure and electrochemical investigations. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Erickson NR, Holstrom CD, Rhoda HM, Rohde GT, Zatsikha YV, Galloni P, Nemykin VN. Tuning Electron-Transfer Properties in 5,10,15,20-Tetra(1′-hexanoylferrocenyl)porphyrins as Prospective Systems for Quantum Cellular Automata and Platforms for Four-Bit Information Storage. Inorg Chem 2017; 56:4717-4728. [DOI: 10.1021/acs.inorgchem.7b00397] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nathan R. Erickson
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Cole D. Holstrom
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Hannah M. Rhoda
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Gregory T. Rohde
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Yuriy V. Zatsikha
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
- Department
of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Pierluca Galloni
- Dipartimento
di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, via Della Ricerca Scientifica, 00133 Rome, Italy
| | - Victor N. Nemykin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
- Department
of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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28
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Filipczyk G, Hildebrandt A, Rüffer T, Korb M, Lang H. Coordination behavior of (ferrocenylethynyl)diphenylphosphane towards binuclear iron and cobalt carbonyls. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Oxidized Styrylruthenium–Ferrocene Conjugates: From Valence Localization to Valence Tautomerism. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600776] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Filipczyk G, Lehrich SW, Hildebrandt A, Rüffer T, Schaarschmidt D, Korb M, Lang H. Multiferrocenyl Cobalt‐Based Sandwich Compounds. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600848] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Grzegorz Filipczyk
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Steve W. Lehrich
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Alexander Hildebrandt
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Tobias Rüffer
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Dieter Schaarschmidt
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Marcus Korb
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Fakultät für Naturwissenschaften Institut für Chemie Anorganische Chemie 09107 Chemnitz Germany
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31
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Gäbler C, Speck JM, Korb M, Schaarschmidt D, Lang H. (Ferrocenylthienyl)phosphines: Synthesis, electrochemistry and their use in Suzuki-Miyaura C,C coupling. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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33
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Pfaff U, Hildebrandt A, Korb M, Oßwald S, Linseis M, Schreiter K, Spange S, Winter RF, Lang H. Electronically Strongly Coupled Divinylheterocyclic-Bridged Diruthenium Complexes. Chemistry 2016; 22:783-801. [PMID: 26660031 DOI: 10.1002/chem.201503687] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/12/2022]
Abstract
Complexes [{Ru(CO)Cl(PiPr3 )2 }2 (μ-2,5-(CH-CH)2 -(c) C4 H2 E] (E=NR; R=C6 H4 -4-NMe2 (10 a), C6 H4 -4-OMe (10 b), C6 H4 -4-Me (10 c), C6 H5 (10 d), C6 H4 -4-CO2 Et (10 e), C6 H4 -4-NO2 (10 f), C6 H3 -3,5-(CF3 )2 (10 g), CH3 (11); E=O (12), S (13)) are discussed. The solid state structures of four alkynes and two complexes are reported. (Spectro)electrochemical studies show a moderate influence of the nature of the heteroatom and the electron-donating or -withdrawing substituents R in 10 a-g on the electrochemical and spectroscopic properties. The CVs display two consecutive one-electron redox events with ΔE°'=350-495 mV. A linear relationship between ΔE°' and the σp Hammett constant for 10 a-f was found. IR, UV/Vis/NIR and EPR studies for 10(+) -13(+) confirm full charge delocalization over the {Ru}CH-CH-heterocycle-CH-CH{Ru} backbone, classifying them as Class III systems according to the Robin and Day classification. DFT-optimized structures of the neutral complexes agree well with the experimental ones and provide insight into the structural consequences of stepwise oxidations.
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Affiliation(s)
- Ulrike Pfaff
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany)
| | - Alexander Hildebrandt
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany)
| | - Marcus Korb
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany)
| | - Steffen Oßwald
- Faculty of Chemistry, Universität Konstanz, 78457 Konstanz (Germany)
| | - Michael Linseis
- Faculty of Chemistry, Universität Konstanz, 78457 Konstanz (Germany)
| | - Katja Schreiter
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany)
| | - Stefan Spange
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany)
| | - Rainer F Winter
- Faculty of Chemistry, Universität Konstanz, 78457 Konstanz (Germany).
| | - Heinrich Lang
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107 Chemnitz (Germany).
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34
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Zhang J, Sun CF, Zhang MX, Hartl F, Yin J, Yu GA, Rao L, Liu SH. Asymmetric oxidation of vinyl- and ethynyl terthiophene ligands in triruthenium complexes. Dalton Trans 2016; 45:768-82. [DOI: 10.1039/c5dt04083c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Newly synthesized open-triangle triruthenium vinyl and ethynyl terthiophene complexes exhibit stepwise laterally localized oxidation processes, as revealed by UV-vis-NIR and IR spectroelectrochemistry.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Chao-Fang Sun
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Ming-Xing Zhang
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - František Hartl
- Department of Chemistry
- University of Reading
- Reading RG6 6AD
- UK
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Guang-Ao Yu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Li Rao
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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35
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Pfaff U, Korb M, Lang H. Crystal structure of 3-ferrocenyl-1-phenyl-1H-pyrrole, [Fe(η(5)-C5H4 (c) C4H3 NPh)(η(5)-C5H5)]. Acta Crystallogr E Crystallogr Commun 2016; 72:92-5. [PMID: 26870594 PMCID: PMC4704767 DOI: 10.1107/s2056989015024214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 12/16/2015] [Indexed: 11/23/2022]
Abstract
The mol-ecular structure of the title compound, [Fe(C5H5)(C15H12N)], consists of a ferrocene moiety with an N-phenyl-pyrrole heterocycle bound to one cyclo-penta-dienyl ring. The 1,3-disubstitution of the pyrrole results in an L-shaped arrangement of the mol-ecule with plane inter-sections of 2.78 (17)° between the pyrrole and the N-bonded phenyl ring and of 8.17 (18)° between the pyrrole and the cyclo-penta-dienyl ring. In the crystal, no remarkable inter-molecular inter-actions are observed.
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Affiliation(s)
- Ulrike Pfaff
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
| | - Marcus Korb
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
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36
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Schmidt HC, Spulber M, Neuburger M, Palivan CG, Meuwly M, Wenger OS. Charge Transfer Pathways in Three Isomers of Naphthalene-Bridged Organic Mixed Valence Compounds. J Org Chem 2015; 81:595-602. [DOI: 10.1021/acs.joc.5b02427] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hauke C. Schmidt
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Mariana Spulber
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Markus Neuburger
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Cornelia G. Palivan
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Markus Meuwly
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Oliver S. Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, Spitalstrasse 51, and Klingelbergstrasse 80, CH-4056 Basel, Switzerland
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37
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Donoli A, Bisello A, Cardena R, Crisma M, Orian L, Santi S. Charge Transfer Properties of Benzo[b]thiophene Ferrocenyl Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alessandro Donoli
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Annalisa Bisello
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Roberta Cardena
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Marco Crisma
- Institute
of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131 Padova, Italy
| | - Laura Orian
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Saverio Santi
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
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38
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Lehrich SW, Hildebrandt A, Korb M, Lang H. Electronic modification of redox active ferrocenyl termini and their influence on the electrontransfer properties of 2,5-diferrocenyl- N -phenyl-1 H -pyrroles. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.12.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Miesel D, Hildebrandt A, Korb M, Schaarschmidt D, Lang H. Transition-Metal Carbonyl Complexes of 2,5-Diferrocenyl-1-phenyl-1H-phosphole. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00520] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dominique Miesel
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Alexander Hildebrandt
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Marcus Korb
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Dieter Schaarschmidt
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
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40
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Speck JM, Korb M, Schade A, Spange S, Lang H. Ferrocenes Bridged by Ethylenediamino Thiophene: Varying Charge Transfer Properties in a Series of 3,4-Di-N-substituted 2,5-Diferrocenyl Thiophenes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00450] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Matthäus Speck
- Technische Universität Chemnitz, Fakultät
für Naturwissenschaften, Institut für Chemie, Anorganische
Chemie, D-09107 Chemnitz, Germany
| | - Marcus Korb
- Technische Universität Chemnitz, Fakultät
für Naturwissenschaften, Institut für Chemie, Anorganische
Chemie, D-09107 Chemnitz, Germany
| | - Alexander Schade
- Technische Universität Chemnitz, Fakultät
für Naturwissenschaften, Institut für Chemie, Polymerchemie, D-09107 Chemnitz, Germany
| | - Stefan Spange
- Technische Universität Chemnitz, Fakultät
für Naturwissenschaften, Institut für Chemie, Polymerchemie, D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät
für Naturwissenschaften, Institut für Chemie, Anorganische
Chemie, D-09107 Chemnitz, Germany
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41
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Miesel D, Hildebrandt A, Korb M, Wild DA, Low PJ, Lang H. Influence of P‐Bonded Bulky Substituents on Electronic Interactions in Ferrocenyl‐Substituted Phospholes. Chemistry 2015; 21:11545-59. [DOI: 10.1002/chem.201501188] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Dominique Miesel
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz (Germany), Fax: (+49) 371‐531‐21219
| | - Alexander Hildebrandt
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz (Germany), Fax: (+49) 371‐531‐21219
| | - Marcus Korb
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz (Germany), Fax: (+49) 371‐531‐21219
| | - Duncan A. Wild
- School of Chemistry and Biochemistry, University of Western Australia, Crawley, Perth, WA 6009 (Australia)
| | - Paul J. Low
- School of Chemistry and Biochemistry, University of Western Australia, Crawley, Perth, WA 6009 (Australia)
| | - Heinrich Lang
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz (Germany), Fax: (+49) 371‐531‐21219
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42
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Pfaff U, Hildebrandt A, Korb M, Schaarschmidt D, Rosenkranz M, Popov A, Lang H. Five-Membered Heterocycles as Linking Units in Strongly Coupled Homobimetallic Group 8 Metal Half-Sandwich Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00104] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ulrike Pfaff
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Alexander Hildebrandt
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Marcus Korb
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Dieter Schaarschmidt
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Marco Rosenkranz
- Institute
for Solid State Research, Department of Electrochemistry and Conducting
Polymers, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany
| | - Alexey Popov
- Institute
for Solid State Research, Department of Electrochemistry and Conducting
Polymers, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany
| | - Heinrich Lang
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
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43
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Jahnke AC, Spulber M, Neuburger M, Palivan CG, Wenger OS. Electronic coupling mediated by furan, thiophene, selenophene and tellurophene in a homologous series of organic mixed valence compounds. Chem Commun (Camb) 2015; 50:10883-6. [PMID: 25090374 DOI: 10.1039/c4cc03806a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Charge delocalization in the mixed-valent monocationic forms of phenothiazine-decorated chalcogenophenes is explored by cyclic voltammetry, optical absorption and EPR spectroscopy. Single units of furan, thiophene, selenophene and tellurophene are found to mediate electronic coupling between the phenothiazines attached to their 2- and 5-positions roughly equally well. Electronic communication seems to occur mostly through the butadiene-like backbone of the chalcogenophenes.
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Affiliation(s)
- Ann Christin Jahnke
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland.
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44
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Strehler F, Korb M, Lang H. Crystal structure of ruthenocenecarbo-nitrile. Acta Crystallogr E Crystallogr Commun 2015; 71:398-401. [PMID: 26029400 PMCID: PMC4438815 DOI: 10.1107/s205698901500540x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
Abstract
The mol-ecular structure of ruthenocenecarbo-nitrile, [Ru(η(5)-C5H4C N)(η(5)-C5H5)], exhibits point group symmetry m, with the mirror plane bis-ecting the mol-ecule through the C N substituent. The Ru(II) atom is slightly shifted from the η(5)-C5H4 centroid towards the C N substituent. In the crystal, mol-ecules are arranged in columns parallel to [100]. One-dimensional inter-molecular π-π inter-actions [3.363 (3) Å] between the C N carbon atom and one carbon of the cyclo-penta-dienyl ring of the overlaying mol-ecule are present.
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Affiliation(s)
- Frank Strehler
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
| | - Marcus Korb
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany
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45
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Gäbler C, Korb M, Schaarschmidt D, Matthäus Speck J, Hildebrandt A, Lang H. (Ferrocenylthienyl)phosphines for the Suzuki–Miyaura C,C coupling. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.02.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Tagg T, Kjaergaard HG, Lane JR, McAdam CJ, Robinson BH, Simpson J. Unusual Low-Energy Near-Infrared Bands for Ferrocenyl–Naphthalimide Donor–Acceptor Dyads with Aromatic Spacer Groups: Prediction by Time-Dependent DFT and Observation by OTTLE Spectroscopy. Organometallics 2015. [DOI: 10.1021/om501315k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Tei Tagg
- School
of Fundamental Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia
| | - Henrik G. Kjaergaard
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Joseph R. Lane
- School
of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - C. John McAdam
- Department
of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Brian H. Robinson
- Department
of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Jim Simpson
- Department
of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
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47
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Shi Y, Li G, Zhao B, Chen Y, Chao P, Zhang H, Wang X, Wang T. Synthesis and optical properties of cationic cyclopentadienyl iron complexes with diphenylacetylene chromophores. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Kowalski K, Karpowicz R, Mlostoń G, Miesel D, Hildebrandt A, Lang H, Czerwieniec R, Therrien B. Synthesis and (spectro)electrochemistry of mixed-valent diferrocenyl–dihydrothiopyran derivatives. Dalton Trans 2015; 44:6268-76. [DOI: 10.1039/c5dt00246j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cationic cyclic diferrocenyl–methane complexes display characteristic IVCT absorptions. These spectral features result from effective “through space” electronic communication between the metal centre in these mixed-valent dimetallic species.
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Affiliation(s)
- Konrad Kowalski
- Faculty of Chemistry
- Department of Organic Chemistry
- University of Łódź
- PL-91403 Łódź
- Poland
| | - Rafał Karpowicz
- Faculty of Chemistry
- Department of Organic Chemistry
- University of Łódź
- PL-91403 Łódź
- Poland
| | - Grzegorz Mlostoń
- Faculty of Chemistry
- Department of Organic and Applied Chemistry
- University of Łódź
- PL-91403 Łódź
- Poland
| | - Dominique Miesel
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Department of Inorganic Chemistry
- D-09107 Chemnitz
| | - Alexander Hildebrandt
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Department of Inorganic Chemistry
- D-09107 Chemnitz
| | - Heinrich Lang
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Department of Inorganic Chemistry
- D-09107 Chemnitz
| | - Rafał Czerwieniec
- Universität Regensburg
- Institut für Physikalische und Theoretische Chemie
- D-93040 Regensburg
- Germany
| | - Bruno Therrien
- Institute of Chemistry
- University of Neuchatel
- CH-2000 Neuchatel
- Switzerland
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49
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Huo S, Mroz R, Carroll J. Negishi coupling in the synthesis of advanced electronic, optical, electrochemical, and magnetic materials. Org Chem Front 2015. [DOI: 10.1039/c4qo00322e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Negishi coupling is an efficient and versatile tool for selective C–C bond formation in the synthesis of organic electronic, optical, electrochemical, and magnetic materials.
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Affiliation(s)
- Shouquan Huo
- Department of Chemistry
- East Carolina University
- Greenville
- USA
| | - Robert Mroz
- Department of Chemistry
- East Carolina University
- Greenville
- USA
| | - Jeffrey Carroll
- Department of Chemistry
- East Carolina University
- Greenville
- USA
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50
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Santi S, Bisello A, Cardena R, Donoli A. Key multi(ferrocenyl) complexes in the interplay between electronic coupling and electrostatic interaction. Dalton Trans 2015; 44:5234-57. [DOI: 10.1039/c4dt03581j] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review, the properties of the most significant examples of multi(ferrocenyl) cations containing a number of ferrocenyl units from two to six are discussed and the results are compared with the outcomes of some of our recent studies on conjugated ferrocenyl complexes.
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Affiliation(s)
- Saverio Santi
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Annalisa Bisello
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Roberta Cardena
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
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