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Martin FA, Marconi D, Neamtu S, Radu T, Florescu M, Turcu R, Lar C, Hădade ND, Grosu I, Turcu I. “Click” access to multilayer functionalized Au surface: A terpyridine patterning example. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1343-1350. [DOI: 10.1016/j.msec.2017.03.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/30/2017] [Accepted: 03/03/2017] [Indexed: 11/24/2022]
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Shankar S, Orbach M, Kaminker R, Lahav M, van der Boom ME. Gold Nanoparticle Assemblies on Surfaces: Reactivity Tuning through Capping-Layer and Cross-Linker Design. Chemistry 2016; 22:1728-34. [PMID: 26743768 DOI: 10.1002/chem.201503297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Sreejith Shankar
- Department of Organic Chemistry; Weizmann Institute of Science; Rehovot 7610001 Israel
| | - Meital Orbach
- Department of Organic Chemistry; Weizmann Institute of Science; Rehovot 7610001 Israel
| | - Revital Kaminker
- Department of Organic Chemistry; Weizmann Institute of Science; Rehovot 7610001 Israel
| | - Michal Lahav
- Department of Organic Chemistry; Weizmann Institute of Science; Rehovot 7610001 Israel
| | - Milko E. van der Boom
- Department of Organic Chemistry; Weizmann Institute of Science; Rehovot 7610001 Israel
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Orbach M, Shankar S, Zenkina OV, Milko P, Diskin-Posner Y, van der Boom ME. Generation of Mono- and Bimetallic Palladium Complexes and Mechanistic Insight into an Operative Metal Ring-Walking Process. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meital Orbach
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Sreejith Shankar
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Olena V. Zenkina
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Petr Milko
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Yael Diskin-Posner
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Milko E. van der Boom
- Departments of Organic Chemistry and ‡Chemical Research
Support, The Weizmann Institute of Science, 7610001 Rehovot, Israel
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de Ruiter G, Lahav M, van der Boom ME. Pyridine coordination chemistry for molecular assemblies on surfaces. Acc Chem Res 2014; 47:3407-16. [PMID: 25350402 DOI: 10.1021/ar500112b] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CONSPECTUS: Since the first description of coordination complexes, many types of metal-ligand interactions have creatively been used in the chemical sciences. The rich coordination chemistry of pyridine-type ligands has contributed significantly to the incorporation of diverse metal ions into functional materials. Here we discuss molecular assemblies (MAs) formed with a variety of pyridine-type compounds and a metal containing cross-linker (e.g., PdCl2(PhCN2)). These MAs are formed using Layer-by-Layer (LbL) deposition from solution that allows for precise fitting of the assembly properties through molecular programming. The position of each component can be controlled by altering the assembly sequence, while the degree of intermolecular interactions can be varied by the level of π-conjugation and the availability of metal coordination sites. By setting the structural parameters (e.g., bond angles, number of coordination sites, geometry) of the ligand, control over MA structure was achieved, resulting in surface-confined metal-organic networks and oligomers. Unlike MAs that are constructed with organic ligands, MAs with polypyridyl complexes of ruthenium, osmium, and cobalt are active participants in their own formation and amplify the growth of the incoming molecular layer. Such a self-propagating behavior for molecular systems is rare, and the mechanism of their formation will be discussed. These exponentially growing MAs are capable of storing metal salts that can be used during the buildup of additional molecular layers. Various parameters influencing the film growth mechanism will be presented, including (i) the number of binding sites and geometry of the organic ligands, (ii) the metal and the structure of the polypyridyl complexes, (iii) the influence of the metal cross-linker (e.g., second or third row transition metals), and (iv) the deposition conditions. By systematic variation of these parameters, switching between linear and exponential growth could be demonstrated for MAs containing structurally well-defined polypyridyl complexes. The porosity of the MAs has been estimated by using electrochemically active probes. Incorporating multiple polypyridyl complexes of osmium and ruthenium into a single assembly give rise to composite materials that exhibit interesting electrochemical and electrochromic properties. These functional composites are especially attractive as they exhibit properties that neither of each metal complex possesses individually. Some of our MAs have very high coloration efficiencies, redox stability, fast responsive times and operate at voltages < 1.5 V. Moreover, their electrochemical properties are dependent on the deposition sequence of the polypyridyl complexes, resulting in MAs that possesses distinctive electron transfer pathways. Finally, some of these MAs are described in terms of their practical applications in electrochromic materials, storage-release chemistry, solar cells, and electron transport properties.
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Affiliation(s)
- Graham de Ruiter
- Department of Organic Chemistry, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Michal Lahav
- Department of Organic Chemistry, The Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Milko E. van der Boom
- Department of Organic Chemistry, The Weizmann Institute of Science, 7610001 Rehovot, Israel
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Orbach M, Lahav M, Milko P, Wolf SG, van der Boom ME. Setting the environmental conditions for controlling gold nanoparticle assemblies. Angew Chem Int Ed Engl 2012; 51:7142-5. [PMID: 22696240 DOI: 10.1002/anie.201203291] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Indexed: 11/06/2022]
Abstract
Fundamental insights into the factors that control the properties and structure of gold nanoparticle (AuNP) based assemblies enable the design and construction of new materials. The dimensions (shape and size) and the optical properties of AuNP assemblies are affected by the electronic properties of the organic cross-linker and the nature of the AuNPs.
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Affiliation(s)
- Meital Orbach
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot-76100, Israel
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Motiei L, Sassi M, Kaminker R, Evmenenko G, Dutta P, Iron MA, van der Boom ME. Synergism in multicomponent self-propagating molecular assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1319-1325. [PMID: 21128588 DOI: 10.1021/la103936t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Multicomponent self-propagating molecular assemblies (SPMAs) have been generated from an organic chromophore, a redox-active polypyridyl complex, and PdCl(2). The structure of the multicomponent SPMA is not a linear combination of two assemblies generated with a single molecular constituent. Surface-confined assemblies formed from only the organic chromophore and PdCl(2) are known to follow linear growth, whereas the combination of polypyridyl complexes and PdCl(2) results in exponential growth. The present study demonstrates that an iterative deposition of both molecular building blocks with PdCl(2) results in an exponentially growing assembly. The nature of the assembly mechanism is dictated by the polypyridyl complex and overrides the linear growth process of the organic component. Relatively smooth, multicomponent SPMAs have been obtained with a thickness of ∼20 nm on silicon, glass, and indium-tin oxide (ITO) coated glass. Detailed information of the structure and of the surface-assembly chemistry were obtained using transmission optical (UV/Vis) spectroscopy, ellipsometry, atomic force microscopy (AFM), synchrotron X-ray reflectivity (XRR), and electrochemistry.
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Affiliation(s)
- Leila Motiei
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
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Kaminker R, Motiei L, Gulino A, Fragalà I, Shimon LJW, Evmenenko G, Dutta P, Iron MA, van der Boom ME. Stepwise Assembly of Coordination-Based Metal−Organic Networks. J Am Chem Soc 2010; 132:14554-61. [DOI: 10.1021/ja105518n] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Revital Kaminker
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Leila Motiei
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Antonino Gulino
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Ignazio Fragalà
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Linda J. W. Shimon
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Guennadi Evmenenko
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Pulak Dutta
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Mark A. Iron
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
| | - Milko E. van der Boom
- Departments of Organic Chemistry and Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel, Dipartimento di Scienze Chimiche, Università di Catania, Catania 95125, Italy, and Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208-3113
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