1
|
Struwe H, Droste J, Dhar D, Davari MD, Kirschning A. Chemoenzymatic Synthesis of a New Germacrene Derivative Named Germacrene F. Chembiochem 2024; 25:e202300599. [PMID: 37910783 DOI: 10.1002/cbic.202300599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/20/2023] [Accepted: 10/30/2023] [Indexed: 11/03/2023]
Abstract
The new farnesyl pyrophosphate (FPP) derivative with a shifted olefinic double bond from C6-C7 to C7-C8 is accepted and converted by the sesquiterpene cyclases protoilludene synthase (Omp7) as well as viridiflorene synthase (Tps32). In both cases, a so far unknown germacrene derivative was found to be formed, which we name "germacrene F". Both cases are examples in which a modification around the central olefinic double bond in FPP leads to a change in the mode of initial cyclization (from 1→11 to 1→10). For Omp7 a rationale for this behaviour was found by carrying out molecular docking studies. Temperature-dependent NMR experiments, accompanied by NOE studies, show that germacrene F adopts a preferred mirror-symmetric conformation with both methyl groups oriented in the same directions in the cyclodecane ring.
Collapse
Affiliation(s)
- Henry Struwe
- Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Jörn Droste
- Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Dipendu Dhar
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle, Germany
| | - Mehdi D Davari
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle, Germany
| | - Andreas Kirschning
- Organic Chemistry, Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| |
Collapse
|
2
|
Niu W, Fu Y, Serra G, Liu K, Droste J, Lee Y, Ling Z, Xu F, Cojal González JD, Lucotti A, Rabe JP, Ryan Hansen M, Pisula W, Blom PWM, Palma CA, Tommasini M, Mai Y, Ma J, Feng X. Bottom-up Solution Synthesis of Graphene Nanoribbons with Precisely Engineered Nanopores. Angew Chem Int Ed Engl 2023; 62:e202305737. [PMID: 37335764 DOI: 10.1002/anie.202305737] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
The incorporation of nanopores into graphene nanostructures has been demonstrated as an efficient tool in tuning their band gaps and electronic structures. However, precisely embedding the uniform nanopores into graphene nanoribbons (GNRs) at the atomic level remains underdeveloped especially for in-solution synthesis due to the lack of efficient synthetic strategies. Herein we report the first case of solution-synthesized porous GNR (pGNR) with a fully conjugated backbone via the efficient Scholl reaction of tailor-made polyphenylene precursor (P1) bearing pre-installed hexagonal nanopores. The resultant pGNR features periodic subnanometer pores with a uniform diameter of 0.6 nm and an adjacent-pores-distance of 1.7 nm. To solidify our design strategy, two porous model compounds (1 a, 1 b) containing the same pore size as the shortcuts of pGNR, are successfully synthesized. The chemical structure and photophysical properties of pGNR are investigated by various spectroscopic analyses. Notably, the embedded periodic nanopores largely reduce the π-conjugation degree and alleviate the inter-ribbon π-π interactions, compared to the nonporous GNRs with similar widths, affording pGNR with a notably enlarged band gap and enhanced liquid-phase processability.
Collapse
Affiliation(s)
- Wenhui Niu
- Max Planck Institute of Microstructure Physics, Weinberg 2, 06120, Halle, Germany
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yubin Fu
- Max Planck Institute of Microstructure Physics, Weinberg 2, 06120, Halle, Germany
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
| | - Gianluca Serra
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Kun Liu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
| | - Jörn Droste
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149, Münster, Germany
- Institut für Organische Chemie, Leibniz Universität Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Yeonju Lee
- Department of Physics & IRIS Adlershof-, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Zhitian Ling
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Fugui Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - José D Cojal González
- Department of Physics & IRIS Adlershof-, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Andrea Lucotti
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Jürgen P Rabe
- Department of Physics & IRIS Adlershof-, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149, Münster, Germany
| | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Paul W M Blom
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Carlos-Andres Palma
- Department of Physics & IRIS Adlershof-, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Matteo Tommasini
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Ji Ma
- Max Planck Institute of Microstructure Physics, Weinberg 2, 06120, Halle, Germany
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
| | - Xinliang Feng
- Max Planck Institute of Microstructure Physics, Weinberg 2, 06120, Halle, Germany
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
| |
Collapse
|
3
|
Yang L, Ma J, Zheng W, Osella S, Droste J, Komber H, Liu K, Böckmann S, Beljonne D, Hansen MR, Bonn M, Wang HI, Liu J, Feng X. Solution Synthesis and Characterization of a Long and Curved Graphene Nanoribbon with Hybrid Cove-Armchair-Gulf Edge Structures. Adv Sci (Weinh) 2022; 9:e2200708. [PMID: 35322602 PMCID: PMC9259722 DOI: 10.1002/advs.202200708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Curved graphene nanoribbons (GNRs) with hybrid edge structures have recently attracted increasing attention due to their unique band structures and electronic properties as a result of their nonplanar conformation. This work reports the solution synthesis of a long and curved multi-edged GNR (cMGNR) with unprecedented cove-armchair-gulf edge structures. The synthesis involves an efficient A2 B2 -type Diels-Alder polymerization between a diethynyl-substituted prefused bichrysene monomer (3b) and a dicyclopenta[e,l]pyrene-5,11-dione derivative (6) followed by FeCl3 -mediated Scholl oxidative cyclodehydrogenation of the obtained polyarylenes (P1). Model compounds 1a and 1b are first synthesized to examine the suitability and efficiency of the corresponding polymers for the Scholl reaction. The successful formation of cMGNR from polymer P1 bearing prefused bichrysene units is confirmed by FTIR, Raman, and solid-state NMR analyses. The cove-edge structure of the cMGNR imparts the ribbon with a unique nonplanar conformation as revealed by density functional theory (DFT) simulation, which effectively enhances its dispersibility in solution. The cMGNR has a narrow optical bandgap of 1.61 eV, as estimated from the UV-vis absorption spectrum, which is among the family of low-bandgap solution-synthesized GNRs. Moreover, the cMGNR exhibits a carrier mobility of ≈2 cm2 V-1 s-1 inferred from contact-free terahertz spectroscopy.
Collapse
Affiliation(s)
- Lin Yang
- Centre for Advancing Electronics Dresden (cfaed)Department of Chemistry and Food ChemistryTechnische Universität DresdenDresden01062Germany
| | - Ji Ma
- Centre for Advancing Electronics Dresden (cfaed)Department of Chemistry and Food ChemistryTechnische Universität DresdenDresden01062Germany
| | - Wenhao Zheng
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Silvio Osella
- Chemical and Biological Systems Simulation LabCentre of New TechnologiesUniversity of WarsawBanacha 2CWarsaw02–097Poland
| | - Jörn Droste
- Institute of Physical ChemistryWestfal̈ische Wilhelms‐Universitaẗ (WWU) MünsterCorrensstraße 28/30MünsterD‐48149Germany
| | - Hartmut Komber
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
| | - Kun Liu
- Centre for Advancing Electronics Dresden (cfaed)Department of Chemistry and Food ChemistryTechnische Universität DresdenDresden01062Germany
| | - Steffen Böckmann
- Institute of Physical ChemistryWestfal̈ische Wilhelms‐Universitaẗ (WWU) MünsterCorrensstraße 28/30MünsterD‐48149Germany
| | - David Beljonne
- Laboratory for Chemistry of Novel MaterialsUniversité de MonsMonsB‐7000Belgium
| | - Michael Ryan Hansen
- Institute of Physical ChemistryWestfal̈ische Wilhelms‐Universitaẗ (WWU) MünsterCorrensstraße 28/30MünsterD‐48149Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Hai I. Wang
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic ChemistryThe University of Hong KongPokfulam RoadHong Kong999077China
| | - Xinliang Feng
- Centre for Advancing Electronics Dresden (cfaed)Department of Chemistry and Food ChemistryTechnische Universität DresdenDresden01062Germany
- Max Planck Institute of Microstructure PhysicsWeinberg 2Halle06120Germany
| |
Collapse
|
4
|
Lips F, Helmer J, Droste J, Hansen MR, Hepp A. Unsaturated Amido-Substituted Six-Vertex Mixed Silicon Germanium Clusters. Dalton Trans 2022; 51:10535-10542. [DOI: 10.1039/d2dt01746f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of mixed silicon and germanium clusters SixGe6-x{N(SiMe3)Dipp}4 1-3 (x = 3.7, 3.1, 2.1) with amido-substituents and two unsubstituted germanium atoms was achieved in co-reductions using the tribromosilane {N(SiMe3)Dipp}SiBr3...
Collapse
|
5
|
Wang X, Ma J, Zheng W, Osella S, Arisnabarreta N, Droste J, Serra G, Ivasenko O, Lucotti A, Beljonne D, Bonn M, Liu X, Hansen MR, Tommasini M, De Feyter S, Liu J, Wang HI, Feng X. Cove-Edged Graphene Nanoribbons with Incorporation of Periodic Zigzag-Edge Segments. J Am Chem Soc 2021; 144:228-235. [PMID: 34962807 DOI: 10.1021/jacs.1c09000] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Structurally precision graphene nanoribbons (GNRs) are promising candidates for next-generation nanoelectronics due to their intriguing and tunable electronic structures. GNRs with hybrid edge structures often confer them unique geometries associated with exotic physicochemical properties. Herein, a novel type of cove-edged GNRs with periodic short zigzag-edge segments is demonstrated. The bandgap of this GNR family can be tuned using an interplay between the length of the zigzag segments and the distance of two adjacent cove units along the opposite edges, which can be converted from semiconducting to nearly metallic. A family member with periodic cove-zigzag edges based on N = 6 zigzag-edged GNR, namely 6-CZGNR-(2,1), is successfully synthesized in solution through the Scholl reaction of a unique snakelike polymer precursor (10) that is achieved by the Yamamoto coupling of a structurally flexible S-shaped phenanthrene-based monomer (1). The efficiency of cyclodehydrogenation of polymer 10 toward 6-CZGNR-(2,1) is validated by FT-IR, Raman, and UV-vis spectroscopies, as well as by the study of two representative model compounds (2 and 3). Remarkably, the resultant 6-CZGNR-(2,1) exhibits an extended and broad absorption in the near-infrared region with a record narrow optical bandgap of 0.99 eV among the reported solution-synthesized GNRs. Moreover, 6-CZGNR-(2,1) exhibits a high macroscopic carrier mobility of ∼20 cm2 V-1 s-1 determined by terahertz spectroscopy, primarily due to the intrinsically small effective mass (m*e = m*h = 0.17 m0), rendering this GNR a promising candidate for nanoelectronics.
Collapse
Affiliation(s)
- Xu Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, 610065 Chengdu, P.R. China.,Centre for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Ji Ma
- Centre for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Wenhao Zheng
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Silvio Osella
- Chemical and Biological Systems Simulation Lab, Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warsaw, Poland
| | - Nicolás Arisnabarreta
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Jörn Droste
- Institute of Physical Chemistry, Westfal̈ische Wilhelms-Universitaẗ Münster, Corrensstraße 28/30, D-48149 Münster, Germany
| | - Gianluca Serra
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Oleksandr Ivasenko
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Andrea Lucotti
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Université de Mons, Place du Parc, 20, B-7000 Mons, Belgium
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Xiangyang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, 610065 Chengdu, P.R. China
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, Westfal̈ische Wilhelms-Universitaẗ Münster, Corrensstraße 28/30, D-48149 Münster, Germany
| | - Matteo Tommasini
- Dipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Steven De Feyter
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hai I Wang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Xinliang Feng
- Centre for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.,Max Planck Institute of Microstructure Physics, Weinberg 2, Halle 06120 Germany
| |
Collapse
|
6
|
Schwedtmann K, Quest M, Guddorf BJ, Keuter J, Hepp A, Feldt M, Droste J, Hansen MR, Lips F. Reactivity of the Bicyclic Amido-Substituted Silicon(I) Ring Compound Si 4 {N(SiMe 3 )Mes} 4 with FLP-Type Character. Chemistry 2021; 27:17361-17368. [PMID: 34636454 PMCID: PMC9297995 DOI: 10.1002/chem.202103101] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 01/13/2023]
Abstract
The bicyclic amido‐substituted silicon(I) ring compound Si4{N(SiMe3)Mes}42 (Mes=Mesityl=2,4,6‐Me3C6H2) features enhanced zwitterionic character and different reactivity from the analogous compound Si4{N(SiMe3)Dipp}41 (Dipp=2,6‐iPr2C6H3) due to the smaller mesityl substituents. In a reaction with the N‐heterocyclic carbene NHCMe4
(1,3,4,5‐tetramethyl‐imidazol‐2‐ylidene), we observe adduct formation to give Si4{N(SiMe3)Mes}4 ⋅ NHCMe4
(3). This adduct reacts further with the Lewis acid BH3 to yield the Lewis acid–base complex Si4{N(SiMe3)Mes}4 ⋅ NHCMe4
⋅ BH3 (4). Coordination of AlBr3 to 2 leads to the adduct 5. Calculated proton affinities and fluoride ion affinities reveal highly Lewis basic and very weak Lewis acidic character of the low‐valent silicon atoms in 1 and 2. This is confirmed by protonation of 1 and 2 with Brookharts acid yielding 6 and 7. Reaction with diphenylacetylene only occurs at 111 °C with 2 in toluene and is accompanied by fragmentation of 2 to afford the silacyclopropene 8 and the trisilanorbornadiene species 9.
Collapse
Affiliation(s)
- Kevin Schwedtmann
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Michael Quest
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Benedikt J Guddorf
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Jan Keuter
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Milica Feldt
- Westfälische Wilhelms-Universität Münster Organisch Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Jörn Droste
- Westfälische Wilhelms-Universität Münster Institut für Physikalische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Michael Ryan Hansen
- Westfälische Wilhelms-Universität Münster Institut für Physikalische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| |
Collapse
|
7
|
Schwedtmann K, Quest M, Guddorf BJ, Keuter J, Hepp A, Feldt M, Droste J, Hansen MR, Lips F. Cover Feature: Reactivity of the Bicyclic Amido‐Substituted Silicon(I) Ring Compound Si
4
{N(SiMe
3
)Mes}
4
with FLP‐Type Character (Chem. Eur. J. 69/2021). Chemistry 2021. [DOI: 10.1002/chem.202104068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kevin Schwedtmann
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Michael Quest
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Benedikt J. Guddorf
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Jan Keuter
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Milica Feldt
- Westfälische Wilhelms-Universität Münster Organisch Chemisches Institut and Center for Multiscale Theory and Computation Corrensstraße 36 48149 Münster Germany
| | - Jörn Droste
- Westfälische Wilhelms-Universität Münster Institut für Physikalische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Michael Ryan Hansen
- Westfälische Wilhelms-Universität Münster Institut für Physikalische Chemie Corrensstraße 28–30 48149 Münster Germany
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Germany
| |
Collapse
|
8
|
Droste J, Burns J, Narayan N. Improving medical workforce knowledge of adrenaline (epinephrine) administration in treatment of anaphylaxis in adults. Acute Med 2021; 20:110-115. [PMID: 34190737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
AIM To compare results of repeated surveys (2010, 2015 and 2017) regarding the knowledge of the medical workforce potentially involved in adrenaline administration for the emergency treatment of anaphylaxis in adults. METHODS Convenience samples of medical (and advanced nursing) staff were surveyed on three separate occasions (2010, 2015 and 2017). Several educational methods were used to increase awareness of the specific administration of adrenaline. RESULTS Overall, knowledge of the medical workforce regarding correct first dose adrenaline administration improved from 15% in 2010 to 49% in 2015 and finally 63% in 2017. CONCLUSION This survey comparison shows knowledge of the medical workforce regarding adrenaline administration for treatment of anaphylaxis in adults can be significantly improved by employing a variety of educational methods.
Collapse
Affiliation(s)
- J Droste
- MRCP, Dr. med., DTMH Consultant in Acute Medicine at Airedale NHS Foundation Trust
| | - J Burns
- Consultant Anaesthetist MBChB, FRCA Anaesthetic Department Airedale NHS Foundation Trust
| | - N Narayan
- Consultant in Acute Medicine, MRCP, MBChB, BSc, PGCert Bolton NHS Foundation Trust
| |
Collapse
|
9
|
Weißenborn E, Droste J, Hardt M, Schlattmann D, Tennagen C, Honnigfort C, Schönhoff M, Hansen MR, Braunschweig B. Light-induced switching of polymer-surfactant interactions enables controlled polymer thermoresponsive behaviour. Chem Commun (Camb) 2021; 57:5826-5829. [PMID: 34002193 DOI: 10.1039/d1cc02054d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxypropyl cellulose (HPC) and arylazopyrazole (AAP) mixtures can be remotely controlled by light and temperature. We show that the hydrophobic interactions between HPC polymers with AAP surfactants can be drastically changed by changing the surfactants configuration through E/Z photo-isomerization. E-AAP interacts strongly with HPC which causes a dramatic increase of the critical temperature Tc of the polymers' phase transition and a loss of the coil-to-globule transition, while the hydrophobic interactions of HPC with Z-AAP are drastically reduced. As a result, E/Z photo-isomerization of AAP in mixtures with HPC offers remote control of the polymers phase transition, size and solution viscosity in an unprecedented way, and allows for new directions in colloid science.
Collapse
Affiliation(s)
- Eric Weißenborn
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Jörn Droste
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Michael Hardt
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Daniel Schlattmann
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Celine Tennagen
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Christian Honnigfort
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Monika Schönhoff
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| | - Björn Braunschweig
- Institute of Physical Chemistry, University Münster, Corrensstraße 28-30, Münster 48149, Germany.
| |
Collapse
|
10
|
Zhang P, Yu C, Yin Y, Droste J, Klabunde S, Hansen MR, Mai Y. Bis-Anthracene Fused Porphyrin as an Efficient Photocatalyst: Facile Synthesis and Visible-Light-Driven Oxidative Coupling of Amines. Chemistry 2020; 26:16497-16503. [PMID: 32720370 DOI: 10.1002/chem.202003398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Indexed: 12/18/2022]
Abstract
Development of high-performance photocatalysts for the conversion of amines is of great importance, but has remained a challenging task. Here, a bis-anthracene fused porphyrin (AFP) was synthesized in a high yield by a facile synthetic protocol, which involves a Suzuki coupling for the conjugation of two anthracene groups with a porphyrin ring, followed by oxidative cyclodehydrogenation. When serving as a photocatalyst, AFP exhibits an outstanding photocatalytic performance for the visible-light-induced aerobic oxidation of amines to imines at ambient conditions. Density functional theory calculations revealed that the low energy band gap, caused by the large planar and π-extended porphyrin structure of AFP, contributed to its high photocatalytic performance.
Collapse
Affiliation(s)
- Pengfei Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yucheng Yin
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jörn Droste
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 28/30, 48149, Münster, Germany
| | - Sina Klabunde
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 28/30, 48149, Münster, Germany
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 28/30, 48149, Münster, Germany
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| |
Collapse
|
11
|
Niu W, Ma J, Soltani P, Zheng W, Liu F, Popov AA, Weigand JJ, Komber H, Poliani E, Casiraghi C, Droste J, Hansen MR, Osella S, Beljonne D, Bonn M, Wang HI, Feng X, Liu J, Mai Y. A Curved Graphene Nanoribbon with Multi-Edge Structure and High Intrinsic Charge Carrier Mobility. J Am Chem Soc 2020; 142:18293-18298. [PMID: 33078947 DOI: 10.1021/jacs.0c07013] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Structurally well-defined graphene nanoribbons (GNRs) have emerged as highly promising materials for the next-generation nanoelectronics. The electronic properties of GNRs critically depend on their edge topologies. Here, we demonstrate the efficient synthesis of a curved GNR (cGNR) with a combined cove, zigzag, and armchair edge structure, through bottom-up synthesis. The curvature of the cGNR is elucidated by the corresponding model compounds tetrabenzo[a,cd,j,lm]perylene (1) and diphenanthrene-fused tetrabenzo[a,cd,j,lm]perylene (2), the structures of which are unambiguously confirmed by the X-ray single-crystal analysis. The resultant multi-edged cGNR exhibits a well-resolved absorption at the near-infrared (NIR) region with a maximum peak at 850 nm, corresponding to a narrow optical energy gap of ∼1.22 eV. Employing THz spectroscopy, we disclose a long scattering time of ∼60 fs, corresponding to a record intrinsic charge carrier mobility of ∼600 cm2 V-1 s-1 for photogenerated charge carriers in cGNR.
Collapse
Affiliation(s)
- Wenhui Niu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.,Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Ji Ma
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Paniz Soltani
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Wenhao Zheng
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials Research, D-01069 Dresden, Germany
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research, D-01069 Dresden, Germany
| | - Jan J Weigand
- Department of Inorganic Molecular Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
| | - Emanuele Poliani
- Department of Chemistry, Manchester University, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Cinzia Casiraghi
- Department of Chemistry, Manchester University, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jörn Droste
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität (WWU) Münster, Corrensstraße 28/30, D-48149 Münster, Germany
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität (WWU) Münster, Corrensstraße 28/30, D-48149 Münster, Germany
| | - Silvio Osella
- Biological Systems Simulation Lab, Center of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warsaw, Poland
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Université de Mons, Place du Parc, 20, B-7000 Mons, Belgium
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Hai I Wang
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Junzhi Liu
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany.,Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| |
Collapse
|
12
|
Rest C, Philips DS, Dünnebacke T, Sutar P, Sampedro A, Droste J, Stepanenko V, Hansen MR, Albuquerque RQ, Fernández G. Tuning Aqueous Supramolecular Polymerization by an Acid-Responsive Conformational Switch. Chemistry 2020; 26:10005-10013. [PMID: 32374463 PMCID: PMC7496824 DOI: 10.1002/chem.202001566] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/03/2020] [Indexed: 01/03/2023]
Abstract
Besides their widespread use in coordination chemistry, 2,2'-bipyridines are known for their ability to undergo cis-trans conformational changes in response to metal ions and acids, which has been primarily investigated at the molecular level. However, the exploitation of such conformational switching in self-assembly has remained unexplored. In this work, the use of 2,2'-bipyridines as acid-responsive conformational switches to tune supramolecular polymerization processes has been demonstrated. To achieve this goal, we have designed a bipyridine-based linear bolaamphiphile, 1, that forms ordered supramolecular polymers in aqueous media through cooperative aromatic and hydrophobic interactions. Interestingly, addition of acid (TFA) induces the monoprotonation of the 2,2'-bipyridine moiety, leading to a switch in the molecular conformation from a linear (trans) to a V-shaped (cis) state. This increase in molecular distortion along with electrostatic repulsions of the positively charged bipyridine-H+ units attenuate the aggregation tendency and induce a transformation from long fibers to shorter thinner fibers. Our findings may contribute to opening up new directions in molecular switches and stimuli-responsive supramolecular materials.
Collapse
Affiliation(s)
- Christina Rest
- Institut für Organische ChemieUniversität Würzburg am Hubland97078WürzburgGermany
| | - Divya Susan Philips
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| | - Torsten Dünnebacke
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| | - Papri Sutar
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| | - Angel Sampedro
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| | - Jörn Droste
- Institut für Physikalische ChemieWWU MünsterCorrensstraße, 28/3048149MünsterGermany
| | - Vladimir Stepanenko
- Institut für Organische ChemieUniversität Würzburg am Hubland97078WürzburgGermany
| | - Michael Ryan Hansen
- Institut für Physikalische ChemieWWU MünsterCorrensstraße, 28/3048149MünsterGermany
| | - Rodrigo Q. Albuquerque
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| | - Gustavo Fernández
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität (WWU) MünsterCorrensstraße, 40.48149MünsterGermany
| |
Collapse
|
13
|
Schnurbus M, Campbell RA, Droste J, Honnigfort C, Glikman D, Gutfreund P, Hansen MR, Braunschweig B. Photo-Switchable Surfactants for Responsive Air–Water Interfaces: Azo versus Arylazopyrazole Amphiphiles. J Phys Chem B 2020; 124:6913-6923. [DOI: 10.1021/acs.jpcb.0c02848] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marco Schnurbus
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
| | - Richard A. Campbell
- Division of Pharmacy & Optometry, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Jörn Droste
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Christian Honnigfort
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
| | - Dana Glikman
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
| | - Philipp Gutfreund
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, Grenoble CEDEX 9 38042, France
| | - Michael Ryan Hansen
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Björn Braunschweig
- Institute of Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
| |
Collapse
|
14
|
Keuter J, Schwermann C, Hepp A, Bergander K, Droste J, Hansen MR, Doltsinis NL, Mück-Lichtenfeld C, Lips F. A highly unsaturated six-vertex amido-substituted silicon cluster. Chem Sci 2020; 11:5895-5901. [PMID: 32874511 PMCID: PMC7448375 DOI: 10.1039/d0sc01427c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/10/2020] [Indexed: 11/21/2022] Open
Abstract
Thermal treatment of the bicyclo[1.1.0]tetrasilatetraamide [Si4{N(SiMe3)Dipp}4] 1 resulted in the formation of a highly unsaturated six-vertex silicon cluster [Si6{N(SiMe3)Dipp}4] 2 with only four amine-substituents and two ligand-free silicon atoms.
Thermal treatment of the bicyclo[1.1.0]tetrasilatetraamide [Si4{N(SiMe3)Dipp}4] 1 resulted in the formation of a highly unsaturated six-vertex silicon cluster [Si6{N(SiMe3)Dipp}4] 2 with only four amine-substituents and two ligand-free silicon atoms. In solution, a major and a minor conformer of this cluster are in equilibrium according to multinuclear NMR spectroscopy, lineshape analysis, DFT calculations and molecular dynamics simulations. The bonding situation in the highly unsaturated cluster features lone pair type character at the ligand-free silicon atoms and partial single and double bond character in the upper butterfly-shaped ring of 2. This allows to consider 2 as the silicon analogue of a butalene isomer.
Collapse
Affiliation(s)
- Jan Keuter
- Westfälische Wilhelms-Universität Münster , Institut für Anorganische und Analytische Chemie , Corrensstraße 28-30 , 48149 Münster , Germany
| | - Christian Schwermann
- Westfälische Wilhelms-Universität Münster , Institut für Festkörpertheorie , Center for Multiscale Theory and Computation , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster , Institut für Anorganische und Analytische Chemie , Corrensstraße 28-30 , 48149 Münster , Germany
| | - Klaus Bergander
- Westfälische Wilhelms-Universität Münster , Organisch-Chemisches Institut , Center for Multiscale Theory and Computation , Corrensstraße 40 , 48149 Münster , Germany
| | - Jörn Droste
- Westfälische Wilhelms-Universität Münster , Institut für Physikalische Chemie , Corrensstraße 30 , 48149 Münster , Germany
| | - Michael Ryan Hansen
- Westfälische Wilhelms-Universität Münster , Institut für Physikalische Chemie , Corrensstraße 30 , 48149 Münster , Germany
| | - Nikos L Doltsinis
- Westfälische Wilhelms-Universität Münster , Institut für Festkörpertheorie , Center for Multiscale Theory and Computation , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany
| | - Christian Mück-Lichtenfeld
- Westfälische Wilhelms-Universität Münster , Organisch-Chemisches Institut , Center for Multiscale Theory and Computation , Corrensstraße 40 , 48149 Münster , Germany
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster , Institut für Anorganische und Analytische Chemie , Corrensstraße 28-30 , 48149 Münster , Germany
| |
Collapse
|
15
|
Honnigfort C, Campbell RA, Droste J, Gutfreund P, Hansen MR, Ravoo BJ, Braunschweig B. Unexpected monolayer-to-bilayer transition of arylazopyrazole surfactants facilitates superior photo-control of fluid interfaces and colloids. Chem Sci 2020; 11:2085-2092. [PMID: 32190275 PMCID: PMC7059314 DOI: 10.1039/c9sc05490a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/08/2020] [Indexed: 12/15/2022] Open
Abstract
Interfaces that can change their chemistry on demand have huge potential for applications and are prerequisites for responsive or adaptive materials. We report on the performance of a newly designed n-butyl-arylazopyrazole butyl sulfonate (butyl-AAP-C4S) surfactant that can change its structure at the air-water interface by E/Z photo-isomerization in an unprecedented way. Large and reversible changes in surface tension (Δγ = 27 mN m-1) and surface excess (ΔΓ > 2.9 μmol m-2) demonstrate superior performance of the butyl-AAP-C4S amphiphile to that of existing ionic surfactants. Neutron reflectometry and vibrational sum-frequency generation spectroscopy reveal that these large changes are caused by an unexpected monolayer-to-bilayer transition. This exceptional behavior is further shown to have dramatic consequences at larger length scales as highlighted by applications like the light-triggered collapse of aqueous foam which is tuned from high (>1 h) to low (<10 min) stabilities and light-actuated particle motion via Marangoni flows.
Collapse
Affiliation(s)
- Christian Honnigfort
- Institute of Physical Chemistry , Westfälische Wilhelms-Universität Münster , Corrensstraße 28/30 , 48149 Münster , Germany .
- Center for Soft Nanoscience (SoN) , Westfälische Wilhelms-Universität Münster , Busso-Peus-Straße 10 , 48149 Münster , Germany
| | - Richard A Campbell
- Division of Pharmacy & Optometry , School of Health Sciences , University of Manchester , Oxford Road , Manchester M13 9PT , UK
| | - Jörn Droste
- Institute of Physical Chemistry , Westfälische Wilhelms-Universität Münster , Corrensstraße 28/30 , 48149 Münster , Germany .
| | - Philipp Gutfreund
- Institut Laue-Langevin (ILL) , 71 Avenue des Martyrs, CS 20156 , 38042 Grenoble Cedex 9 , France
| | - Michael Ryan Hansen
- Institute of Physical Chemistry , Westfälische Wilhelms-Universität Münster , Corrensstraße 28/30 , 48149 Münster , Germany .
| | - Bart Jan Ravoo
- Center for Soft Nanoscience (SoN) , Westfälische Wilhelms-Universität Münster , Busso-Peus-Straße 10 , 48149 Münster , Germany
- Organic Chemistry Institute , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany
| | - Björn Braunschweig
- Institute of Physical Chemistry , Westfälische Wilhelms-Universität Münster , Corrensstraße 28/30 , 48149 Münster , Germany .
- Center for Soft Nanoscience (SoN) , Westfälische Wilhelms-Universität Münster , Busso-Peus-Straße 10 , 48149 Münster , Germany
| |
Collapse
|
16
|
Herkert L, Droste J, Kartha KK, Korevaar PA, de Greef TFA, Hansen MR, Fernández G. Pathway Control in Cooperative vs. Anti-Cooperative Supramolecular Polymers. Angew Chem Int Ed Engl 2019; 58:11344-11349. [PMID: 31119831 DOI: 10.1002/anie.201905064] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Indexed: 11/07/2022]
Abstract
Controlling the nanoscale morphology in assemblies of π-conjugated molecules is key to developing supramolecular functional materials. Here, we report an unsymmetrically substituted amphiphilic PtII complex 1 that shows unique self-assembly behavior in nonpolar media, providing two competing anti-cooperative and cooperative pathways with distinct molecular arrangement (long- vs. medium-slipped, respectively) and nanoscale morphology (discs vs. fibers, respectively). With a thermodynamic model, we unravel the competition between the anti-cooperative and cooperative pathways: buffering of monomers into small-sized, anti-cooperative species affects the formation of elongated assemblies, which might open up new strategies for pathway control in self-assembly. Our findings reveal that side-chain immiscibility is an efficient method to control anti-cooperative assemblies and pathway complexity in general.
Collapse
Affiliation(s)
- Lorena Herkert
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Jörn Droste
- Institut für Physikalische Chemie, Westfälische-Wilhelms Universität Münster, Corrensstraße 28/30, 48149, Münster, Germany
| | - Kalathil K Kartha
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Peter A Korevaar
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands
| | - Tom F A de Greef
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands.,Institute for Complex Molecular Systems, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Westfälische-Wilhelms Universität Münster, Corrensstraße 28/30, 48149, Münster, Germany
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| |
Collapse
|
17
|
Herkert L, Droste J, Kartha KK, Korevaar PA, de Greef TFA, Hansen MR, Fernández G. Pathway Control in Cooperative vs. Anti‐Cooperative Supramolecular Polymers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lorena Herkert
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Jörn Droste
- Institut für Physikalische ChemieWestfälische-Wilhelms Universität Münster Corrensstraße 28/30 48149 Münster Germany
| | - Kalathil K. Kartha
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Peter A. Korevaar
- Institute for Molecules and MaterialsRadboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Tom F. A. de Greef
- Institute for Molecules and MaterialsRadboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
- Institute for Complex Molecular SystemsDepartment of Biomedical EngineeringEindhoven University of Technology The Netherlands
| | - Michael Ryan Hansen
- Institut für Physikalische ChemieWestfälische-Wilhelms Universität Münster Corrensstraße 28/30 48149 Münster Germany
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Westfälische-Wilhelms Universität Münster Corrensstraße 40 48149 Münster Germany
| |
Collapse
|
18
|
Langenstroer A, Kartha KK, Dorca Y, Droste J, Stepanenko V, Albuquerque RQ, Hansen MR, Sánchez L, Fernández G. Unraveling Concomitant Packing Polymorphism in Metallosupramolecular Polymers. J Am Chem Soc 2019; 141:5192-5200. [DOI: 10.1021/jacs.8b11011] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anja Langenstroer
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Kalathil K. Kartha
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Yeray Dorca
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Jörn Droste
- Institut für Physikalische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Vladimir Stepanenko
- Institut für Organische Chemie, Universität Würzburg, Am Hubland 16, 97074 Würzburg, Germany
| | | | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Luis Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| |
Collapse
|
19
|
Chen Z, Droste J, Zhai G, Zhu J, Yang J, Hansen MR, Zhuang X. Sulfur-anchored azulene as a cathode material for Li–S batteries. Chem Commun (Camb) 2019; 55:9047-9050. [DOI: 10.1039/c9cc04413b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A benzene-free and vinyl-free molecule, azulene, is used to polymerize with sulfur for new cathode material based Li–S batteries.
Collapse
Affiliation(s)
- Zhenying Chen
- The Soft2D Lab
- State Key Laboratory of Metal Matrix Composites & Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Jörn Droste
- Institute for Physical Chemistry
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Guangqun Zhai
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Jinhui Zhu
- The Soft2D Lab
- State Key Laboratory of Metal Matrix Composites & Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Jun Yang
- The Soft2D Lab
- State Key Laboratory of Metal Matrix Composites & Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Michael Ryan Hansen
- Institute for Physical Chemistry
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Xiaodong Zhuang
- The Soft2D Lab
- State Key Laboratory of Metal Matrix Composites & Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| |
Collapse
|
20
|
de Swart L, Reiniers C, Bagguley T, Van Marrewijk C, Bowen D, Cermak J, Hellström-Lindberg E, Tatic A, Symeonidis A, Huls G, Panagiotidis P, Garelius H, Culligan D, Krejci M, Droste J, Smith A, Swinkels D, de Witte T. 212 TRANSFUSIONS AND PRESENCE OF RINGSIDEROBLASTS INFLUENCE HEPCIDIN AND NTBI LEVELS IN PATIENTS WITH LOWER-RISK MYELODYSPLASTIC SYNDROMES (MDS) - A REPORT FROM THE EUROPEAN LEUKEMIANET MDS REGISTRY. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30213-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Droste J, Hundia V, Pettit A, Narayan N, Nejim A. Excision of injection site substantially reduced serum insulin concentration in a potentially life-threatening insulin analogue overdose. Practical Diabetes 2012. [DOI: 10.1002/pdi.1700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
22
|
Droste J, Narayan N. Anaphylaxis: lack of hospital doctors' knowledge of adrenaline (epinephrine) administration in adults could endanger patients' safety. Eur Ann Allergy Clin Immunol 2012; 44:122-127. [PMID: 22905594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Adrenaline (epinephrine) is the first line drug to be given in anaphylaxis and can save patients' lives. Conversely, incorrect administration of adrenaline in anaphylaxis has caused patients serious harm, including death. We compared the survey results of doctors' knowledge of adrenaline administration in adults of two District General Hospitals Trusts in England and found, that from 284 Hospital Doctors, 14.4% (n = 41) would administer adrenaline as recommended by published anaphylaxis guidelines. This survey comparison shows that a significant number of hospital doctors, regardless of seniority and specialty, have an educational deficit regarding correct administration of adrenaline (epinephrine) administration in adults with anaphylaxis. Multilevel strategies to educate doctors and prevent patient harm are needed. We propose a mnemonic for remembering the recommended treatment for anaphylaxis in the adult: "A Thigh 500" forAdrenaline into the antero-lateral thigh, 500 micrograms.
Collapse
Affiliation(s)
- J Droste
- Airedale General Hospital, Airedale NHS Trust, Skipton Road, Keighley, West Yorkshire, UK.
| | | |
Collapse
|
23
|
Hambach R, Acke S, François G, Alen Y, Droste J, van Sprundel M. [Work related health risks among dentist's assistants in Flanders, Belgium]. Ned Tijdschr Tandheelkd 2011; 118:371-375. [PMID: 21882506 DOI: 10.5177/ntvt.2011.07/08.11102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The aim of this research project was to learn more about work-related health risks among dental assistants in Flanders, Belgium. Forty-seven dental assistants completed an extensive questionnaire concerning ionized radiation, protection against infection and exposure to chemicals such as mercury, disinfectants and acrylates. Collective and personal means of protection, musculoskeletal disorders and work-related stress were also evaluated. Pain in the lower back, neck pain and shoulder pain were reported by, respectively, 15%, 17% and 22% of the respondents. Eczema resulting from skin irritation or contact-allergy was reported by 13%. Twenty-three percent of the assistants did not consistently make use ofa radiation badge; 80% wore a mouth mask and 33% wore protective glasses; and 82% was vaccinated against hepatitis B. Almost 10% reported verbal or physical aggression by patients. The mean stress score was 3.95 on a scale from 0 to 10. The results may contribute to the formulation of a number of recommendations for the improvement of the health of dental assistants.
Collapse
Affiliation(s)
- R Hambach
- Externe Dienst voor Preventie en Bescherming op het Werk van Mensura, Antwerpen, België.
| | | | | | | | | | | |
Collapse
|
24
|
Bowen D, Droste J, Smith A, Fenaux P, Symeonidis A, Sanz G, Hellström-Lindberg E, Cermak J, Gologan R, Germing U, Stauder R, Malcovati L, de Witte T. P015 European LeukemiaNet registry programme for low/INT-1 IPSS score myelodysplastic syndromes. Leuk Res 2009. [DOI: 10.1016/s0145-2126(09)70095-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
25
|
Hoekstra H, Lemmers N, Gels M, Droste J, de Langen Z, Plukker J, Sleijfer D, Schraffordt Koops H. 1210 Complications of venous access port (VAP) in patients with non-seminomatous testicular germ cell tumours. Eur J Cancer 1995. [DOI: 10.1016/0959-8049(95)96456-n] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|