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Elvers BJ, Fischer C, Schulzke C. Dynamics and Coordination of a P 2N 2 Ligand - from Twisted Conformation to Chelation. Chemistry 2024; 30:e202304103. [PMID: 38372510 DOI: 10.1002/chem.202304103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/10/2024] [Accepted: 02/19/2024] [Indexed: 02/20/2024]
Abstract
Based on their general spacial flexibility, their Lewis and Brønsted basicity, and ability to mimic second sphere effects the 1,5-diaza-3,7-diphosphacyclooctane ligand family and their complexes have regained substantial scientific interest. It was now possible to structurally analyze a recently reported member of this family with p-tolyl and t-butyl substituents on P and N, respectively, (P2 p-tolN2 tBu). Notably, the ligand crystallizes with a 'twisted' backbone. This compound is the very first of its kind to have been unambiguously characterized with regard to its chemical and molecular structure as being in this conformation. A temperature-dependent NMR study provides insight into the molecular dynamics of two isomers in solution, which are most likely also both twisted, as judged by the observed limited reactivity. Despite the in principle unfavorable conformation of the free ligand, it was successfully chelated to tungsten and molybdenum centers in mononuclear carbonyl complexes. The ligand, a derivative thereof and four new complexes were comprehensively characterized and analyzed in comparison. This includes single crystal XRD molecular structures of P2 p-tolN2 tBu and all four complexes. P2 p-tolN2 tBu, regardless of its twisted conformation, is able to coordinate to metal centers given that enough energy (heat) for a conformational change is provided.
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Affiliation(s)
- Benedict J Elvers
- Bioinorganic Chemistry, Institute of Biochemistry, University of Greifswald, 17489, Greifswald, Germany
| | - Christian Fischer
- Bioinorganic Chemistry, Institute of Biochemistry, University of Greifswald, 17489, Greifswald, Germany
| | - Carola Schulzke
- Bioinorganic Chemistry, Institute of Biochemistry, University of Greifswald, 17489, Greifswald, Germany
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Smith MB. The Backbone of Success of P,N-Hybrid Ligands: Some Recent Developments. Molecules 2022; 27:6293. [PMID: 36234830 PMCID: PMC9614609 DOI: 10.3390/molecules27196293] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 12/03/2022] Open
Abstract
Organophosphorus ligands are an invaluable family of compounds that continue to underpin important roles in disciplines such as coordination chemistry and catalysis. Their success can routinely be traced back to facile tuneability thus enabling a high degree of control over, for example, electronic and steric properties. Diphosphines, phosphorus compounds bearing two separated PIII donor atoms, are also highly valued and impart their own unique features, for example excellent chelating properties upon metal complexation. In many classical ligands of this type, the backbone connectivity has been based on all carbon spacers only but there is growing interest in embedding other donor atoms such as additional nitrogen (-NH-, -NR-) sites. This review will collate some important examples of ligands in this field, illustrate their role as ligands in coordination chemistry and highlight some of their reactivities and applications. It will be shown that incorporation of a nitrogen-based group can impart unusual reactivities and important catalytic applications.
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Affiliation(s)
- Martin B Smith
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, UK
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Affiliation(s)
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
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Affiliation(s)
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
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Sari O, Schüttler A, Lönnecke P, Bednarski PJ, Hey-Hawkins E, Karakus M. Synthesis, structure and in vitro anticancer activity of ruthenium(II) and platinum(II) complexes with chiral aminophosphine ligands. TRANSIT METAL CHEM 2021. [DOI: 10.1007/s11243-020-00446-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Musina E, Wittmann T, Latypov S, Kondrashova S, Lönnecke P, Litvinov I, Hey‐Hawkins E, Karasik A. Self‐Assembly of Chiral 1,8‐Diaza‐3,6,10,13‐tetraphosphacyclotetradecanes via Dynamic Transformation of 7‐ and 14‐Membered Aminomethylphosphines. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Elvira Musina
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
| | - Tatiana Wittmann
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
| | - Shamil Latypov
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
| | - Svetlana Kondrashova
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
| | - Peter Lönnecke
- Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry Leipzig University Leipzig Germany
| | - Igor Litvinov
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
| | - Evamarie Hey‐Hawkins
- Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry Leipzig University Leipzig Germany
| | - Andrey Karasik
- A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center Russian Academy of Sciences Arbuzov, 8 420088 Kazan Russia
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Karasik AA, Strelnik ID, Musina EI, Dayanova IR, Elistratova JG, Mustafina AR, Sinyashin OG. Luminescent complexes of 1,5-diaza-3,7-diphosphacyclooctanes with coinage metals. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1539854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Andrey A. Karasik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Igor D. Strelnik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Elvira I. Musina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Irina R. Dayanova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Julia G. Elistratova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Asiya R. Mustafina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Oleg G. Sinyashin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
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Musina EI, Naumov RN, Kanunnikov KB, Dobrynin AB, Gómez-Ruiz S, Lönnecke P, Hey-Hawkins E, Karasik AA, Sinyashin OG. Chiral [16]-ane P 4N 2 macrocycles: stereoselective synthesis and unexpected intermolecular exchange of endocyclic fragments. Dalton Trans 2018; 47:16977-16984. [PMID: 30451253 DOI: 10.1039/c8dt03214a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes were stereoselectively synthesized as pure RPSPSPRP isomers via a one-pot Mannich-type condensation reaction of 1,3-bis(arylphosphino)propane, formaldehyde and optically active, as well as racemic, primary amines. An unprecedented intermolecular exchange of endocyclic amino fragments of 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes was observed. The lability of the P-CH2-N fragment in macrocyclic aminomethylphosphines is the reason of the stereoisomerization, formation of products with medium-sized cycles as well as the exchange of endocyclic amino fragments. The mechanism of these transformations involving the formation of a methylenephosphonium intermediate and further intra- and intermolecular nucleophilic substitution is discussed.
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Affiliation(s)
- E I Musina
- A.E. Arbuzov Institute of Organic and Physical Chemistry - Subdivision of FIC KazanSC of RAS, Arbuzov str., 8, Kazan, Russia.
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Abstract
The structure ofN,N,N-tris(diphenylphosphorylmethyl)amine, C39H36NO3P3, at 103 K has monoclinic (P21/c) symmetry. Two molecules, each with pseudo-threefold rotation symmetry, crystallize in the asymmetric unit of the monoclinic unit cell. The compound acts as ligand for the stabilization of metal ions with flexible coordination enabling three- or fourfold coordination.
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Karasik AA, Musina EI, Balueva AS, Strelnik ID, Sinyashin OG. Cyclic aminomethylphosphines as ligands. Rational design and unpredicted findings. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-1022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract:Rational design of title ligands and their transition metal complexes gave the high effective catalysts for hydrogen economy and perspective “stimuli-responsive” luminescent materials. Together with the above novel cyclic aminomehtylphospine ligands have showed a row of unpredicted properties like spontaneous formation of macrocyclic molecules, unique reversible slitting of macrocycles on to the smaller cycles, rapid interconversion of the isomers catalyzed by both acids and transitional metals, bridging behavior of usually chelating ligands and unexpected high influence of handling substituents on N-atoms on to the catalytic and luminescent properties of P-complexes.
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Affiliation(s)
- Andrey A. Karasik
- 1A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088, Kazan, Russia
| | - Elvira I. Musina
- 1A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088, Kazan, Russia
| | - Anna S. Balueva
- 1A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088, Kazan, Russia
| | - Igor D. Strelnik
- 1A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088, Kazan, Russia
| | - Oleg G. Sinyashin
- 1A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, Arbuzov str. 8, 420088, Kazan, Russia
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Karasik AA. Cyclic aminomethylphosphines as ligands: Balancing between rational design and unpredicted findings. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2016.1211656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Andrey A. Karasik
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia
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Heterocyclic Phosphines with P-C-X Fragments (X=O, N, P). ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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