1
|
Ray A, Passiu C, Nasuda M, Ramakrishna SN, Rossi A, Kuzuya A, Spencer ND, Yamakoshi Y. Reactive-Oxygen-Species-Mediated Surface Oxidation of Single-Molecule DNA Origami by an Atomic Force Microscope Tip-Mounted C 60 Photocatalyst. ACS NANO 2021; 15:19256-19265. [PMID: 34817171 DOI: 10.1021/acsnano.1c04953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A tripod molecule incorporating a C60 photocatalyst into a rigid scaffold with disulfide legs was designed and synthesized for the stable and robust attachment of C60 onto an Au-coated atomic force microscope (AFM) tip. The "tripod-C60" was immobilized onto the tip by forming S-Au bonds in the desired orientation and a dispersed manner, rendering it suitable for the oxidation and scission of single molecules on a countersurface, thereby functioning as "molecular shears". A DNA origami with a well-defined structure was chosen as the substrate for the tip-induced oxidation. The gold-coated, C60-functionalized AFM tip was used for both AFM imaging and oxidation of DNA origami upon visible-light irradiation. The localized and temporally controlled oxidative damage of DNA origami was successfully performed at the single-molecule level via singlet-oxygen (1O2) generation from the immobilized C60 on the AFM tip. This oxidative damage to DNA origami can be carried out under ambient conditions in a fluid cell at room temperature, rendering it well-suited for the manipulation of a variety of species on surfaces via a spatially and temporally controlled oxidation reaction triggered by 1O2 locally generated from the immobilized C60 on the AFM tip.
Collapse
Affiliation(s)
- Ankita Ray
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, CH 8093 Zürich, Switzerland
| | - Cristiana Passiu
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, CH 8093 Zürich, Switzerland
| | - Masayuki Nasuda
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, CH 8093 Zürich, Switzerland
| | - Shivaprakash N Ramakrishna
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, CH 8093 Zürich, Switzerland
| | - Antonella Rossi
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, CH 8093 Zürich, Switzerland
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria di Monserrato, I-09100 Cagliari, Italy
| | - Akinori Kuzuya
- Department of Chemistry and Materials Engineering, Kansai University, Yamate-cho 3-3-35, Suita, 564-8680 Osaka, Japan
| | - Nicholas D Spencer
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, CH 8093 Zürich, Switzerland
| | - Yoko Yamakoshi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, CH 8093 Zürich, Switzerland
| |
Collapse
|
2
|
Zaręba JK. Tetraphenylmethane and tetraphenylsilane as building units of coordination polymers and supramolecular networks – A focus on tetraphosphonates. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.10.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
3
|
Urzúa JI, Torneiro M. Divergent Synthesis of Porous Tetraphenylmethane Dendrimers. J Org Chem 2017; 82:13231-13238. [PMID: 29135247 DOI: 10.1021/acs.joc.7b02302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Tetraphenylmethane-ethynylene-based shape-persistent dendrimers are a new class of nanoobjects with an intriguing 3D architecture. We report an efficient divergent strategy for their synthesis based on the Sonogashira Pd-catalyzed coupling of terminal alkynes with aryl iodides. As repeat unit, we prepared a tetraphenylmethane derivative bearing a terminal alkyne and three triazene moieties. Coupling of this building block to tetrakis(p-iodophenyl)methane afforded, after triazene activation, a dodecaiodo-terminated first generation dendrimer, which was transformed by another Sonogashira coupling into a methoxy-terminated second generation dendrimer with persistent globular shape and well-defined cavities. This work also unveils new aspects of triazene chemistry, i.e., the unprecedented efficient generation of an azo compound by mixing of a triazene with phenol.
Collapse
Affiliation(s)
- Julio I Urzúa
- Departamento de Química Orgánica, Facultade de Química, Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| | - Mercedes Torneiro
- Departamento de Química Orgánica, Facultade de Química, Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| |
Collapse
|
4
|
Xu W, Xia W, Guan Y, Wang Y, Lu C, Yang G, Nie J, Chen Z. DMAP-based flexible polymer networks formed via Heck coupling as efficient heterogeneous organocatalysts. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.04.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
5
|
Valášek M, Lindner M, Mayor M. Rigid multipodal platforms for metal surfaces. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:374-405. [PMID: 27335731 PMCID: PMC4901557 DOI: 10.3762/bjnano.7.34] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 02/17/2016] [Indexed: 06/05/2023]
Abstract
In this review the recent progress in molecular platforms that form rigid and well-defined contact to a metal surface are discussed. Most of the presented examples have at least three anchoring units in order to control the spatial arrangement of the protruding molecular subunit. Another interesting feature is the lateral orientation of these foot structures which, depending on the particular application, is equally important as the spatial arrangement of the molecules. The numerous approaches towards assembling and organizing functional molecules into specific architectures on metal substrates are reviewed here. Particular attention is paid to variations of both, the core structures and the anchoring groups. Furthermore, the analytical methods enabling the investigation of individual molecules as well as monomolecular layers of ordered platform structures are summarized. The presented multipodal platforms bearing several anchoring groups form considerably more stable molecule-metal contacts than corresponding monopodal analogues and exhibit an enlarged separation of the functional molecules due to the increased footprint, as well as restrict tilting of the functional termini with respect to the metal surface. These platforms are thus ideally suited to tune important properties of the molecule-metal interface. On a single-molecule level, several of these platforms enable the control over the arrangement of the protruding rod-type molecular structures (e.g., molecular wires, switches, rotors, sensors) with respect to the surface of the substrate.
Collapse
Affiliation(s)
- Michal Valášek
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Marcin Lindner
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Marcel Mayor
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
- Lehn Institute of Functional Materials (LIFM), Sun Yat-Sen University (SYSU), Xingang Rd. W., Guangzhou, China
- Department of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
| |
Collapse
|
6
|
Urzúa JI, Regueira MA, Lazzari M, Torneiro M. Shape-persistent fluorescent tetraphenylmethane dendrimers. Polym Chem 2016. [DOI: 10.1039/c6py01046f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first examples of a new class of rigid dendrimers made of three-dimensional tetraphenylmethane units connected by ethynylene linkers.
Collapse
Affiliation(s)
- Julio I. Urzúa
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - María A. Regueira
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Massimo Lazzari
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Física
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Mercedes Torneiro
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| |
Collapse
|
7
|
Kumar R, Ramakrishna SN, Naik VV, Chu Z, Drew ME, Spencer ND, Yamakoshi Y. Versatile method for AFM-tip functionalization with biomolecules: fishing a ligand by means of an in situ click reaction. NANOSCALE 2015; 7:6599-6606. [PMID: 25789795 DOI: 10.1039/c5nr01495f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A facile and universal method for the functionalization of an AFM tip has been developed for chemical force spectroscopy (CFS) studies of intermolecular interactions of biomolecules. A click reaction between tripod-acetylene and an azide-linker-ligand molecule was successfully carried out on the AFM tip surface and used for the CFS study of ligand-receptor interactions.
Collapse
Affiliation(s)
- Rakesh Kumar
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland.
| | | | | | | | | | | | | |
Collapse
|
8
|
Synthesis and photophysical characterization of novel π-conjugated vinyl sulfides. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
9
|
Jarosz T, Lapkowski M, Ledwon P. Advances in Star-Shaped π-Conjugated Systems: Properties and Applications. Macromol Rapid Commun 2014; 35:1006-32. [DOI: 10.1002/marc.201400061] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/07/2014] [Indexed: 01/20/2023]
Affiliation(s)
- Tomasz Jarosz
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
| | - Mieczyslaw Lapkowski
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; 41-819 Zabrze Curie-Sklodowskiej 34 Poland
| | - Przemyslaw Ledwon
- Department of Physical Chemistry and Technology of Polymers; Silesian University of Technology; 44-100 Gliwice M. Strzody 9 Poland
| |
Collapse
|
10
|
Sun L, Liang Z, Yu J, Xu R. Luminescent microporous organic polymers containing the 1,3,5-tri(4-ethenylphenyl)benzene unit constructed by Heck coupling reaction. Polym Chem 2013. [DOI: 10.1039/c2py21034g] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Shokova EA, Kovalev VV. Adamantane functionalization. synthesis of polyfunctional derivatives with various substituents in bridgehead positions. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2012. [DOI: 10.1134/s1070428012080015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Grigg R, Elboray EE, Aly MF, Abbas-Temirek HH. Exploiting adamantane as a versatile organic tecton: multicomponent catalytic cascade reactions. Chem Commun (Camb) 2012; 48:11504-6. [DOI: 10.1039/c2cc35054h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
13
|
Stefak R, Ratel-Ramond N, Rapenne G. Synthesis and electrochemical characteristics of a donor–acceptor porphyrinate rotor mounted on a naphthalocyaninato europium complex. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.10.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
14
|
Ie Y, Hirose T, Nakamura H, Kiguchi M, Takagi N, Kawai M, Aso Y. Nature of Electron Transport by Pyridine-Based Tripodal Anchors: Potential for Robust and Conductive Single-Molecule Junctions with Gold Electrodes. J Am Chem Soc 2011; 133:3014-22. [DOI: 10.1021/ja109577f] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yutaka Ie
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- PRESTO-JST, 4-1-8, Honcho, Kawaguchi, Saitama 333-0012, Japan
| | - Tomoya Hirose
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hisao Nakamura
- Nanosystem Research Institute (NRI)
“RICS”, National Institute of Advanced Industrial Science and Technology (AIST), Central 2,
Umezono 1-1-1, Tsukuba, Ibaraki 305-8568, Japan
| | - Manabu Kiguchi
- Department of Chemistry, Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 W4-10, Ookayama, Meguro-ku, Tokyo
152-8551, Japan
| | - Noriaki Takagi
- Department of Advanced Materials
Science, The University of Tokyo, Kashiwa,
Chiba 277-8561, Japan
| | - Maki Kawai
- Department of Advanced Materials
Science, The University of Tokyo, Kashiwa,
Chiba 277-8561, Japan
- Surface Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Yoshio Aso
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
15
|
Schilling CI, Plietzsch O, Nieger M, Muller T, Bräse S. Fourfold Suzuki-Miyaura and Sonogashira Cross-Coupling Reactions on Tetrahedral Methane and Adamantane Derivatives. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001567] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
16
|
Weidner T, Zharnikov M, Hoβbach J, Castner DG, Siemeling U. Adamantane-Based Tripodal Thioether Ligands Functionalized with a Redox-Active Ferrocenyl Moiety for Self-Assembled Monolayers. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2010; 114:14975-14982. [PMID: 21399702 PMCID: PMC3049913 DOI: 10.1021/jp104376p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Self-assembled monolayers (SAMs) can decorate surfaces with `smart´ functional units possessing reversible stimulus-response behavior for optical, thermal, magnetic or redox-chemical stimuli. An independent performance of individual functional groups in such a film is desirable, which can be, in particular, ensured by fairly large lateral separations between tailgroups in the SAM. Adsorbate molecules with multiple attachment points are very promising in this context owing to their large surface footprint, which covers a surface area exceeding the lateral dimensions of the functional groups. To address these design constraints, novel tridentate long-chain tripodal thioether ligands with central adamantine units and a redox-active ferrocenyl tailgroup, 1-[4-(ferrocenylethynyl)phenyl]-3,5,7-tri[(4-n-octylsulfanyl)phenyl]adamantine (T8) and 1-[4-(ferrocenylethynyl)phenyl]-3,5,7-tri[(4-n-dodecylsulfanyl)phenyl]adamantine (T12), were synthesized and used as tripodal adsorbate molecules for the fabrication of redox-active ferrocenyl-terminated SAMs on Au(111). These SAMs were characterized by X-ray photoelectron spectroscopy, near edge X-ray absorption fine structure spectroscopy and sum frequency generation spectroscopy. The data suggest that T8 and T12 form almost contamination-free, well-aligned and fairly densely-packed SAMs on Au(111) with laterally separated ferrocenyl units. The SAMs show a homogeneous binding chemistry, an important requirement for high fidelity SAMs. SFG results indicate lateral interactions between neighboring molecules via the long-chain binding units.
Collapse
Affiliation(s)
- Tobias Weidner
- National ESCA and Surface Analysis Center for Biomedical Problems (NESAC/BIO), Departments of Bioengineering and Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Michael Zharnikov
- Angewandte Physikalische Chemie, Universität Heidelberg, 69120 Heidelberg, Germany
| | - Jens Hoβbach
- Institut für Chemie and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Universität Kassel, 34109 Kassel, Germany
| | - David G. Castner
- National ESCA and Surface Analysis Center for Biomedical Problems (NESAC/BIO), Departments of Bioengineering and Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Ulrich Siemeling
- Institut für Chemie and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Universität Kassel, 34109 Kassel, Germany
| |
Collapse
|
17
|
Takamatsu D, Fukui KI, Aroua S, Yamakoshi Y. Photoswitching tripodal single molecular tip for noncontact AFM measurements: synthesis, immobilization, and reversible configurational change on gold surface. Org Biomol Chem 2010; 8:3655-64. [PMID: 20589278 DOI: 10.1039/c002657c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tripodal molecules consisting of a tetrasubstituted adamantane with three phenylacetylene legs and a reversibly photoswitching apex were designed as "single molecular tips" for both chemical and topographical characterization of the substrate surface. By covalent attachment onto gold-coated AFM tips through three S-Au bonds, these rigid tripodal molecules are expected to act as sharp, robust, and stationary molecular tips whose configuration can be reversibly changed upon irradiation with UV or visible light. In this report, the full account of the syntheses of two photoswitching tripodal molecular tips, their immobilization onto Au(111) surfaces, and the detection of photoinduced configurational change on Au(111) surface by SPM measurements are documented.
Collapse
Affiliation(s)
- Daiko Takamatsu
- Department of Chemistry, Graduate School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | | | | | | |
Collapse
|
18
|
Bats JW, Pospiech S, Prisner TF. 1,3,5,7-Tetra-kis(4-iodo-phen-yl)adamantane benzene tetra-solvate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1636. [PMID: 21587865 PMCID: PMC3006832 DOI: 10.1107/s1600536810021744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 06/07/2010] [Indexed: 11/11/2022]
Abstract
The title molecule, C34H28I4·4C6H6, has crystallographic symmetry and crystallizes with four symmetry-related benzene solvent molecules. The phenyl group is eclipsed with one of the adamantane C—C bonds. The tetraphenyladamantane units and the benzene solvent molecules are connected by weak intermolecular phenyl–benzene C—H⋯π and benzene–benzene C—H⋯π interactions. In the crystal, molecules are linked along the c-axis direction via the iodophenyl groups by a combination of weak intermolecular I⋯I [3.944 (1) Å] and I⋯π(phenyl) [3.608 (6) and 3.692 (5) Å] interactions.
Collapse
|
19
|
Drew ME, Chworos A, Oroudjev E, Hansma H, Yamakoshi Y. A tripod molecular tip for single molecule ligand-receptor force spectroscopy by AFM. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7117-7125. [PMID: 20000731 DOI: 10.1021/la904151h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Tripod-shaped molecules were designed for chemical modification of the surface of probes used for atomic force microscopy (AFM). These chemically functionalized tips were used for chemical force spectroscopy (CFS) measurements of the ligand-protein receptor interaction in a biotin-NeutrAvidin model system. We demonstrate that by using this unique tripodal system, we can achieve significantly lower density of ligand on the AFM tip apex, which is optimal for true single molecule measurements. Furthermore, the molecular tripods form highly stable bonds to the AFM probes, leading to more robust and reproducible unbinding force data, thereby addressing one of the challenges in CFS studies. Histogram analysis of the hundreds of collected unbinding forces showed a specific distribution with a peak force maximum at approximately 165 pN, in good agreement with the previously reported data of single rupture events of biotin-avidin. We compared these molecular tripod tips with a molecular monopod. The results showed that the molecular tripods are more robust for repeated measurements. The distinct biotin-avidin force maximum was not observed in the control experiments. This indicated that the force distribution observed for molecular tripods corresponds to the specific rupture force between biotin and avidin. The improved robustness of molecular tripods for CFS will provide benefits in other ligand-receptor unbinding studies, including those of transmembrane receptor systems, which require high resolution, sensitivity, and reproducibility in force spectroscopy measurements.
Collapse
Affiliation(s)
- Michael E Drew
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia Pennsylvania 19104-6323, USA
| | | | | | | | | |
Collapse
|
20
|
Lee CH, Zhang Y, Romayanantakit A, Galoppini E. Modular synthesis of ruthenium tripodal system with variable anchoring groups positions for semiconductor sensitization. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Quintiliani M, Pérez-Moreno J, Asselberghs I, Vázquez P, Clays K, Torres T. Synthesis and Nonlinear Optical Properties of Tetrahedral Octupolar Phthalocyanine-Based Systems. J Phys Chem B 2010; 114:6309-15. [DOI: 10.1021/jp100827k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maurizio Quintiliani
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| | - Javier Pérez-Moreno
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| | - Inge Asselberghs
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| | - Purificación Vázquez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| | - Koen Clays
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| | - Tomás Torres
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain, and Department of Chemistry, University of Leuven, B-3001 Leuven, Belgium
| |
Collapse
|
22
|
Kanibolotsky AL, Perepichka IF, Skabara PJ. Star-shaped π-conjugated oligomers and their applications in organic electronics and photonics. Chem Soc Rev 2010; 39:2695-728. [DOI: 10.1039/b918154g] [Citation(s) in RCA: 303] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
23
|
Rapenne G. Synthesis of substituted indazoles and their corresponding tris(indazolyl)borate tripodal ligands as key building blocks for molecular motors. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
24
|
Abou-Elkhair RAI, Dixon DW, Netzel TL. Synthesis and Electrochemical Evaluation of Conjugates between 2′-Deoxyadenosine and Modified Anthraquinone: Probes for Hole-Transfer Studies in DNA. J Org Chem 2009; 74:4712-9. [DOI: 10.1021/jo900306g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Dabney W. Dixon
- Department of Chemistry, Georgia State University, P.O. Box 4098, Atlanta, Georgia 30302-4098
| | - Thomas L. Netzel
- Department of Chemistry, Georgia State University, P.O. Box 4098, Atlanta, Georgia 30302-4098
| |
Collapse
|
25
|
Bertin PA, Georganopoulou D, Liang T, Eckermann AL, Wunder M, Ahrens MJ, Blackburn GF, Meade TJ. Electroactive self-assembled monolayers on gold via bipodal dithiazepane anchoring groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:9096-9101. [PMID: 18627193 DOI: 10.1021/la801165b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Novel dithiazepane-functionalized ferrocenyl-phenylethynyl oligomers 1 and 2 have been synthesized. Self-assembled monolayers (SAMs) of these ferrocene derivatives have been studied by X-ray photoelectron spectroscopy, ellipsometry, and cyclic voltammetry. It has been shown by XPS that monolayers of the dithiazepane-anchored molecules on gold electrodes contain gold-thiolate species. Cyclic voltammetry of the SAMs were characteristic of stable electroactive monolayers even for single-component SAMs of 1 and 2, with the more ideal responses recorded for the two-component SAMs diluted with undecanethiol. The small variation in peak splittings at progressively higher scan rates in these SAMs makes dithiazepane-bridged redox species promising candidates for further studies on molecular wires with bipodal anchoring.
Collapse
|
26
|
Jing B, Chen X, Zhao Y, Wang X, Cai J, Qiu H. Ionic Self-Assembled Organic Nanobelts from The Hexagonal Phase Complexes and Their Cyclodextrin Inclusions. J Phys Chem B 2008; 112:7191-5. [DOI: 10.1021/jp801061g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Jing
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Xiao Chen
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Yurong Zhao
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Xudong Wang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Jinguang Cai
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Huayu Qiu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China, and Key Lab of Organosilicon and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| |
Collapse
|
27
|
|
28
|
Synthesis of C3-symmetric and C4-symmetric amino acid derivatives via Suzuki–Miyaura cross-coupling reaction. Amino Acids 2008; 35:83-8. [DOI: 10.1007/s00726-007-0626-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2007] [Accepted: 10/15/2007] [Indexed: 11/27/2022]
|
29
|
Quintiliani M, Kahnt A, Vázquez P, Guldi DM, Torres T. Implementing a tripodal relay station in a phthalocyanine–[60]fullerene conjugate. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b716322c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
|
31
|
Stepakov AV, Molchanov AP, Kostikov RR. Alkylation of aromatic compounds with adamantan-1-ol. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2007. [DOI: 10.1134/s1070428007040082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
32
|
de Meijere A, Zhao L, Belov VN, Bossi M, Noltemeyer M, Hell SW. 1,3-Bicyclo[1.1.1]pentanediyl: The Shortest Rigid Linear Connector of Phenylated Photochromic Units and a 1,5-Dimethoxy-9,10-di(phenylethynyl)anthracene Fluorophore. Chemistry 2007; 13:2503-16. [PMID: 17203493 DOI: 10.1002/chem.200601316] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An excess of bis-1,3-(4-iodophenyl)bicyclo[1.1.1]pentane, prepared in 63 % yield by iodination of 1,3-diphenylbicyclo[1.1.1]pentane, was selectively mono-coupled with 9-ethynyl-1,5-dimethoxy-10-phenylethynylanthracene (26), and subsequently with the zinc derivatives of 1-(2-methyl/methoxy-4-methyl-5-phenylthiophen-3-yl)-2-(2-methyl/methoxy-4-methylthiophen-3-yl)perfluorocyclopentenes (38-H-41-H). Regioselective synthesis of the 2-unsubstituted thiophenes 38-H-41-H required intermediate preparation of 2-trimethylsilyl-3,5-dimethyl-4-bromothiophene (37) or 2-trimethylsilyl-5-methoxy-3-methyl-4-bromothiophene (40). Protection of the alpha-position of the thiophene ring with a 2-trimethylsilyl group blocks the rearrangement of the 4-lithio derivatives into the corresponding 2-lithiated thiophenes. With the bicyclo[1.1.1]pentane fragment linking the photochromic units 1-3 and 1,5-dimethoxy-9,10-di(phenylethynyl)anthracene as a fluorescent part, quantitative resonance energy transfer between the excited state of the fluorophore (donor) and the closed form of the photochromic units 1-3 (acceptors) was observed. The closed forms of the methoxy-substituted photochromic units 2 and 3 are less resistant to UV light (313 nm) than the closed form of 1.
Collapse
Affiliation(s)
- Armin de Meijere
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | | | | | | | | | | |
Collapse
|
33
|
Chinchilla R, Najera C. The Sonogashira Reaction: A Booming Methodology in Synthetic Organic Chemistry. Chem Rev 2007; 107:874-922. [PMID: 17305399 DOI: 10.1021/cr050992x] [Citation(s) in RCA: 2257] [Impact Index Per Article: 132.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Chinchilla
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Facultad de Ciencias, Apartado 99, 03080 Alicante, Spain.
| | | |
Collapse
|
34
|
Katano S, Kim Y, Matsubara H, Kitagawa T, Kawai M. Hierarchical Chiral Framework Based on a Rigid Adamantane Tripod on Au(111). J Am Chem Soc 2007; 129:2511-5. [PMID: 17279745 DOI: 10.1021/ja065893v] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have investigated the tripod-shaped bromo adamantane trithiol (BATT) molecule on Au(111) using scanning tunneling microscopy (STM) at 4.7 K. Adsorption of BATT leads to formation of highly ordered self-assembled monolayers (SAMs) with three-point contacts on Au(111). The structure of these SAMs has been found to have a two-tiered hierarchical chiral organization. The self-assembly of achiral monomers produces chiral trimers, which then act as the building blocks for chiral hexagonal supermolecules. SAMs begin to form from the racemic mixture of assembled molecules in ribbon-shaped islands, followed by the transformation to enantiomeric domains when SAM layers develop two-dimensionally across hcp domains. Such a chiral phase transition at the two-dimensional domain can arise from a subtle balance between molecule-substrate and intermolecular interactions. Two structural factors, the S atom (stabilization) and the methylene groups (chirality) located just above the S atom, induce the chiral ordering of BATT on Au(111).
Collapse
Affiliation(s)
- Satoshi Katano
- Surface Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 Japan
| | | | | | | | | |
Collapse
|
35
|
Kitagawa T, Idomoto Y, Matsubara H, Hobara D, Kakiuchi T, Okazaki T, Komatsu K. Rigid Molecular Tripod with an Adamantane Framework and Thiol Legs. Synthesis and Observation of an Ordered Monolayer on Au(111). J Org Chem 2006; 71:1362-9. [PMID: 16468783 DOI: 10.1021/jo051863j] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tripod-shaped trithiols 1-3, containing CH2SH groups at the three bridgehead positions of the adamantane framework and a halogen-containing group [Br (1), p-BrC6H4 (2), or p-IC6H4 (3)] at the fourth bridgehead, were synthesized, and self-assembled monolayers (SAMs) were prepared on atomically flat Au111 surfaces. The three-point chemisorption of these tripods was confirmed by polarization modulation infrared reflection absorption spectroscopy, which showed the absence of a S-H stretching band. Scanning tunneling microscopy of the SAM of 1 exhibited a hexagonal arrangement of the adsorbed molecule with a lattice constant of 8.7 angstroms. A unidirectionally oriented, head-to-tail array of 1, which allows the close approach of neighboring molecules, is proposed as a reasonable model of the two-dimensional crystal, where the adsorbed sulfur atoms form a quasi-(radical3 x radical3)R30 degrees lattice. The charge of the electrochemical reductive desorption of the SAM of 1 was in good agreement with the expected surface coverage, while the SAMs of 2 and 3 showed somewhat less (ca. 70%) charge. The large negative reduction peak potentials, observed for the SAM of 1, are taken to indicate a tight anchoring of this tripod by three sulfur atoms.
Collapse
Affiliation(s)
- Toshikazu Kitagawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | | | | | | | | | | | | |
Collapse
|
36
|
Takamatsu D, Yamakoshi Y, Fukui KI. Photoswitching Behavior of a Novel Single Molecular Tip for Noncontact Atomic Force Microscopy Designed for Chemical Identification. J Phys Chem B 2006; 110:1968-70. [PMID: 16471770 DOI: 10.1021/jp056986m] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A tripod molecule with an azobenzene arm was designed as a single molecular tip for noncontact atomic force microscopy (NC-AFM). The azobenzene moiety showed photoisomerization that enabled measurements of the same position of the sample by different tip apexes with different interactions. Photoswitching behavior of the molecule synthesized and adsorbed on Au surfaces was examined and reversible switching between the trans- and cis forms was successfully confirmed by NC-AFM measurements.
Collapse
Affiliation(s)
- Daiko Takamatsu
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-W4-10 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | | | | |
Collapse
|
37
|
Liu XM, Xu J, Lu X, He C. Novel Glassy Tetra(N-alkyl-3-bromocarbazole-6-yl)silanes as Building Blocks for Efficient and Nonaggregating Blue-Light-Emitting Tetrahedral Materials. Org Lett 2005; 7:2829-32. [PMID: 15987147 DOI: 10.1021/ol050687y] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[structure: see text] Tetrahedral precursors of tetra(N-alkyl-3-bromocarbazole-6-yl)silanes (1-3), which were amorphous with T(g) being adjustable by changing the chain length of the N-substitutent, were developed. Fluorene-conjugated glassy compound 4 and hyperbranched polymer 5 were synthesized from the precursors via Suzuki coupling reaction. 4 and 5 emitted blue light efficiently in the condensed state with high quantum efficiencies of 80 (4) and 59% (5) and small fwhm (full width at half-maximum) of 48 (4) and 55 nm (5), indicating that they did not pack into detrimental aggregates in the solid state.
Collapse
Affiliation(s)
- Xue-Ming Liu
- Institute of Materials Research and Engineering, 3 Research Link, Singapore.
| | | | | | | |
Collapse
|
38
|
Liu XM, Lin T, Huang J, Hao XT, Ong KS, He C. Hyperbranched Blue to Red Light-Emitting Polymers with Tetraarylsilyl Cores: Synthesis, Optical and Electroluminescence Properties, and ab Initio Modeling Studies. Macromolecules 2005. [DOI: 10.1021/ma047686q] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xue-Ming Liu
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| | - Tingting Lin
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| | - Junchao Huang
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| | - Xiao-Tao Hao
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| | - Kian Soo Ong
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| | - Chaobin He
- Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
| |
Collapse
|
39
|
Bai DR, Wang S. Comparative Study on Tetrahedral and Tripodal Luminescent Silane and Methane Compounds with a 2,2‘-Dipyridylamino Group. Organometallics 2004. [DOI: 10.1021/om049382y] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong-Ren Bai
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Suning Wang
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| |
Collapse
|
40
|
A water-soluble non-aggregating fluorescent octa-carboxylic acid derived from tetraphenylmethane: synthesis and optical properties. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.06.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
41
|
Lee GS, Bashara JN, Sabih G, Oganesyan A, Godjoian G, Duong HM, Marinez ER, Gutiérrez CG. Photochemical Preparation of 1,3,5,7-Tetracyanoadamantane and Its Conversion to 1,3,5,7-Tetrakis(aminomethyl)adamantane. Org Lett 2004; 6:1705-7. [PMID: 15151394 DOI: 10.1021/ol036526g] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New adamantane derivatives 1 and 2 that bear functionalized one-carbon extensions at all four bridgehead positions have been prepared. Radical nucleophilic substitution (S(RN)1) reaction of 1,3,5,7-tetrabromoadamantane with cyanide produces 1,3,5,7-tetracyanoadamantane (1), which was reduced with borane reagents to 1,3,5,7-tetrakis(aminomethyl)adamantane (2). Improvements in the preparation of 1,3,5,7-tetrahaloadamantanes (halogen = Br, Cl, I) are also reported. [structure--see text]
Collapse
Affiliation(s)
- Ging S Lee
- Department of Chemistry and Biochemistry, California State University, Los Angeles, CA 90032-8202, USA
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Synthesis and optical properties of tetraphenylmethane-based tetrahedral fluorescent compounds and their water-soluble PEG-linked polymers. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.01.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|