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Nößler M, Hunger D, Neuman NI, Reimann M, Reichert F, Winkler M, Klein J, Bens T, Suntrup L, Demeshko S, Stubbe J, Kaupp M, van Slageren J, Sarkar B. Fluorinated Click-Derived Tripodal Ligands Drive Spin Crossover in both Iron(II) and Cobalt(II) Complexes. Dalton Trans 2022; 51:10507-10517. [DOI: 10.1039/d2dt01005d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Control of the spin state of metal complexes is important because it leads to a precise control over the physical properties and the chemical reactivity of the metal complexes. Currently,...
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Nößler M, Hunger D, Reichert F, Winkler M, Reimann M, Klein J, Suhr S, Suntrup L, Beerhues J, Kaupp M, van Slageren J, Sarkar B. Spin-state control of cobalt(II) and iron(II) complexes with click-derived tripodal ligands through non-covalent and fluorine-specific interactions. Dalton Trans 2021; 50:18097-18106. [PMID: 34851330 DOI: 10.1039/d1dt03535e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fine-tuning of intermolecular or intramolecular non-covalent interactions (NCIs) and thus the precise synthesis of metal complexes in which the spin states can be controlled by NCIs remains challenging, even though several such complexes have been intensively studied. In this regard, we present mononuclear cobalt(II) and iron(II) complexes with "click"-derived tripodal ligands that contain fluorinated benzyl substituents in the secondary coordination sphere. The complexes were co-crystallized with different solvent molecules to decipher the effect of the crystallized solvents on NCIs, and on the spin state of the metal ion. Additionally, the fluorine-specific interactions in the secondary coordination sphere were examined. We present a first structure-property correlation between the nature of interaction of the (per)fluorinated aromatic substituents on the ligand periphery, and the spin state of the metal complexes. In particular, the TF5TA containing ligand show interesting stacking motifs depending on the used solvent, and these interactions have an influence on the spin state of the cobalt(II) complexes. Furthermore, the iron(II) complex thereof, Fe(TF5TA)2(BF4)2·2EtOH displays spin crossover (SCO).
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Affiliation(s)
- Maite Nößler
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany.
| | - David Hunger
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Felix Reichert
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Mario Winkler
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Marc Reimann
- Institut für Theoretische Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Johannes Klein
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany.
| | - Simon Suhr
- Lehrstuhl für Anorganische Koordinationschemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Lisa Suntrup
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany.
| | - Julia Beerhues
- Lehrstuhl für Anorganische Koordinationschemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Martin Kaupp
- Institut für Theoretische Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Joris van Slageren
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany. .,Lehrstuhl für Anorganische Koordinationschemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
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Sommer MG, Marx R, Schweinfurth D, Rechkemmer Y, Neugebauer P, van der Meer M, Hohloch S, Demeshko S, Meyer F, van Slageren J, Sarkar B. Control of Complex Formation through Peripheral Substituents in Click-Tripodal Ligands: Structural Diversity in Homo- and Heterodinuclear Cobalt-Azido Complexes. Inorg Chem 2016; 56:402-413. [DOI: 10.1021/acs.inorgchem.6b02330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Michael G. Sommer
- Institut für Chemie und Biochemie, Anorganische Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Raphael Marx
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - David Schweinfurth
- Institut für Chemie und Biochemie, Anorganische Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Yvonne Rechkemmer
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - Petr Neugebauer
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - Margarethe van der Meer
- Institut für Chemie und Biochemie, Anorganische Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Stephan Hohloch
- Institut für Chemie und Biochemie, Anorganische Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Serhiy Demeshko
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammanstraße
4, D-37077, Göttingen, Germany
| | - Franc Meyer
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammanstraße
4, D-37077, Göttingen, Germany
| | - Joris van Slageren
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
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Sommer MG, Rechkemmer Y, Suntrup L, Hohloch S, van der Meer M, van Slageren J, Sarkar B. Structural snapshots in the copper(ii) induced azide–nitrile cycloaddition: effects of peripheral ligand substituents on the formation of unsupported μ1,1-azido vs. μ1,4-tetrazolato bridged complexes. Dalton Trans 2016; 45:17770-17781. [DOI: 10.1039/c6dt03073d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peripheral substituents on click-derived tripodal ligands dictate the reactivity of their copper(ii) azido complexes.
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Affiliation(s)
- Michael G. Sommer
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Yvonne Rechkemmer
- Institut für Physikalische Chemie
- Universität Stuttgart
- Stuttgart
- Germany
| | - Lisa Suntrup
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- Berlin
- Germany
| | - Stephan Hohloch
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- Berlin
- Germany
| | | | | | - Biprajit Sarkar
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- Berlin
- Germany
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