1
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Assaba IM, Rahali S, Belhocine Y, Allal H. Inclusion complexation of chloroquine with α and β-cyclodextrin: Theoretical insights from the new B97-3c composite method. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129696] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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2
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Mohite AR, Phatake RS, Dubey P, Agbaria M, Shames AI, Lemcoff NG, Reany O. Thiourea-Mediated Halogenation of Alcohols. J Org Chem 2020; 85:12901-12911. [DOI: 10.1021/acs.joc.0c01431] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Amar R. Mohite
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ravindra S. Phatake
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Pooja Dubey
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Mohamed Agbaria
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Alexander I. Shames
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ofer Reany
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
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3
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Ashok Kumar C, Govindarajan R, Kumar U, Karthikeyan M, Varghese B, Manimaran B. Multicomponent self-assembly of Mn(I)-based thiolato-bridged ester functionalized rectangular and V-shaped tetranuclear metallacyclophanes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Taira T, Yanagimoto T, Sakai K, Sakai H, Endo A, Imura T. Synthesis of surface-active N -heterocyclic carbene ligand and its Pd-catalyzed aqueous Mizoroki–Heck reaction. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Gala E, Reyes MJ, Alvarez-Builla J, Izquierdo ML. Regioselective Synthesis of 2-Amino-5-(or 3-)arylazo-Substituted Pyridines and Pyrazines from Pyridinium N-Aminides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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Yuan M, Weisser F, Sarkar B, Garci A, Braunstein P, Routaboul L, Therrien B. Synthesis and Electrochemical Behavior of a Zwitterion-Bridged Metalla-Cage. Organometallics 2014. [DOI: 10.1021/om500155y] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Minghui Yuan
- Institut de Chimie, Université de Neuchâtel, 51 Avenue de Bellevaux, CH-2000 Neuchâtel, Switzerland
- Laboratoire de Chimie
de Coordination, Institut
de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue
Blaise Pascal, F-67081 Strasbourg Cédex, France
| | - Fritz Weisser
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Amine Garci
- Institut de Chimie, Université de Neuchâtel, 51 Avenue de Bellevaux, CH-2000 Neuchâtel, Switzerland
| | - Pierre Braunstein
- Laboratoire de Chimie
de Coordination, Institut
de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue
Blaise Pascal, F-67081 Strasbourg Cédex, France
| | - Lucie Routaboul
- Laboratoire de Chimie
de Coordination, Institut
de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue
Blaise Pascal, F-67081 Strasbourg Cédex, France
| | - Bruno Therrien
- Institut de Chimie, Université de Neuchâtel, 51 Avenue de Bellevaux, CH-2000 Neuchâtel, Switzerland
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7
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Xu L, Chen LJ, Yang HB. Recent progress in the construction of cavity-cored supramolecular metallodendrimers via coordination-driven self-assembly. Chem Commun (Camb) 2014; 50:5156-70. [DOI: 10.1039/c3cc47484d] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Kim JJ, Kwak OK, Park JK, Min KS, Yoon YJ. Construction and characterization of novel molecular architectures through coordination-driven self-assembly: rhomboid and overlapped double rhomboid. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0373-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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He M, Han Q, He J, Li Q, Abliz Z, Tan H, Xu L, Yang H. Self-assembly of Pyrene-modified Rhomboidal MetallodendrimersviaDirectional Metal-ligand Bonding Approach. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300247] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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10
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Ghosh S, Silber GT, White AJP, Robertson N, Vilar R. Synthesis of a self-assembled copper(ii) metallo-rectangle with a guanosine-substituted terpyridine. Dalton Trans 2013; 42:13813-6. [DOI: 10.1039/c3dt51845k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Effect of ligand flexibility on coordination-driven self-assembly of Pt(II) metallacycles. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Chakrabarty R, Mukherjee PS, Stang PJ. Supramolecular coordination: self-assembly of finite two- and three-dimensional ensembles. Chem Rev 2011; 111:6810-918. [PMID: 21863792 PMCID: PMC3212633 DOI: 10.1021/cr200077m] [Citation(s) in RCA: 2287] [Impact Index Per Article: 175.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rajesh Chakrabarty
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Peter J Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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13
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Han Q, Li QJ, He J, Hu B, Tan H, Abliz Z, Wang CH, Yu Y, Yang HB. Design and Synthesis of 60° Dendritic Donor Ligands and Their Coordination-Driven Self-Assembly into Supramolecular Rhomboidal Metallodendrimers. J Org Chem 2011; 76:9660-9. [DOI: 10.1021/jo201594u] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Qing Han
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes,
Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P. R. China
| | - Quan-Jie Li
- Department of Chemistry, Beijing Normal University, Beijing 100050, P. R. China
| | - Jiuming He
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R.
China
| | - Bingjie Hu
- Shanghai Key Laboratory
of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062, P. R. China
| | - Hongwei Tan
- Department of Chemistry, Beijing Normal University, Beijing 100050, P. R. China
| | - Zeper Abliz
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R.
China
| | - Cui-Hong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes,
Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P. R. China
| | - Yihua Yu
- Shanghai Key Laboratory
of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062, P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes,
Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P. R. China
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14
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Vanitha A, Mobin SM, Manimaran B. Synthesis of selenium bridged metallacycles via oxidative addition of diaryl diselenide across Re–Re bond: Novel one-pot reaction approach. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Zhang X, Chen T, Yan HJ, Wang D, Fan QH, Wan LJ, Ghosh K, Yang HB, Stang PJ. Hydrogen bond partner reorganization in the coadsorption of a monodendron and pyridylethynyl derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1292-1297. [PMID: 21073168 DOI: 10.1021/la1037876] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Hydrogen bonds with high selectivity and directionality are significant in harnessing molecules to form 2D supramolecular nanostructures. The competition and reorganization of hydrogen bond partners determine the ultimate molecular assembly and pattern in a 2D supramolecular system. In this study, multicomponent assemblies of a monodendron (5-benzyloxy-isophthalic acid derivative, BIC) and pyridylethynyl derivatives [1,4-bis(4-pyridylethynyl)-2,3-bis-dodecyloxy-benzene (PBPC12) and 1,4-bis(4-pyridylethynyl)-2,3-bis-octadecyloxy-benzene (PBPC18)] have been studied by scanning tunneling microscopy (STM) on a graphite surface. BIC molecules are able to associate with PBPC12 and PBPC18 molecules to induce the rearrangement of hydrogen bond partners and form coassembly structures. Interestingly, BIC acts as a template molecule in the coassembly process, and these multicomponent structures exhibit similar structural features to the assembly structures of BIC itself. The structural details of the coassembled structures are revealed by high-resolution STM images, and their relationship with the original BIC assemblies is discussed. These results provide important insights into the design and fabrication of hydrogen-bond-directed multicomponent molecular nanostructures on solid surfaces.
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Affiliation(s)
- Xu Zhang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
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16
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Zhao GZ, Chen LJ, Wang CH, Yang HB, Ghosh K, Zheng YR, Lyndon MM, Muddiman DC, Stang PJ. Facile Self-Assembly of Dendritic Multiferrocenyl Hexagons and Their Electrochemistry. Organometallics 2010. [DOI: 10.1021/om1008605] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guang-Zhen Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, People's Republic of China, 200062
| | - Li-Jun Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, People's Republic of China, 200062
| | - Cui-Hong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, People's Republic of China, 200062
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, People's Republic of China, 200062
| | - Koushik Ghosh
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Yao-Rong Zheng
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Matthew M. Lyndon
- W. M. Keck FT-ICR Mass Spectrometry Laboratory and Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - David C. Muddiman
- W. M. Keck FT-ICR Mass Spectrometry Laboratory and Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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17
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Ghosh S, Mukherjee PS. Self-assembled Pd(II) metallocycles using an ambidentate donor and the study of square-triangle equilibria. Inorg Chem 2010; 48:2605-13. [PMID: 19267506 DOI: 10.1021/ic802254f] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The self-assembly reaction of a cis-blocked 90 degrees square planar metal acceptor with a symmetrical linear flexible linker is expected to yield a [4 + 4] self-assembled square, a [3 + 3] assembled triangle, or a mixture of these. However, if the ligand is a nonsymmetrical ambidentate, it is expected to form a complex mixture comprising several linkage isomeric squares and triangles as a result of different connectivities of the ambidentate linker. We report instead that the reaction of a 90 degrees acceptor cis-(dppf)Pd(OTf)(2) [where dppf = 1,1'-bis(diphenylphosphino)ferrocene] with an equimolar amount of the ambidentate unsymmetrical ligand Na-isonicotinate unexpectedly yields a mixture of symmetrical triangles and squares in the solution. An analogous reaction using cis-(tmen)Pd(NO(3))(2) instead of cis-(dppf)Pd(OTf)(2) also produced a mixture of symmetrical triangles and squares in the solution. In both cases the square was isolated as the sole product in the solid state, which was characterized by a single crystal structure analysis. The equilibrium between the triangle and the square in the solution is governed by the enthalpic and entropic contributions. The former parameter favors the formation of the square due to less strain in the structure whereas the latter one favors the formation of triangles due to the formation of more triangles from the same number of starting linkers. The effects of temperature and concentration on the equilibria have been studied by NMR techniques. This represents the first report on the study of square-triangle equilibria obtained using a nonsymmetric ambidentate linker. Detail NMR spectroscopy along with the ESI-mass spectrometry unambiguously identified the components in the mixture while the X-ray structure analysis determined the solid-state structure.
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Affiliation(s)
- Sushobhan Ghosh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
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18
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Seesukphronrarak S, Ohira K, Kidena K, Takimoto N, Kuroda CS, Ohira A. Synthesis and properties of sulfonated copoly(p-phenylene)s containing aliphatic alkyl pendant for fuel cell applications. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.12.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Zhao L, Ghosh K, Zheng YR, Stang PJ. Construction of endo-functionalized two dimensional metallacycles via coordination-driven self-assembly. J Org Chem 2010; 74:8516-21. [PMID: 19835395 DOI: 10.1021/jo9019607] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of three endofunctionalized two-dimensional supramolecular metallacycles including two [2 + 2] rhomboids (5 and 6) and a [3 + 3] hexagon (7) is reported. The resulting self-assembled supramolecular structures, containing several nitrobenzyl moieties at their interior surface, have been fully characterized by multinuclear NMR ((31)P and (1)H) and electrospray ionization mass spectrometry. A significant C-H...O hydrogen bonding between the nitrobenzyl acceptor and the edge molecules of the supramolecular architecture is observed in the small rhomboid 5 and this interaction gradually decreases upon the enlargement of the resulting polygonal structures from a small rhomboid 5 through a large rhomboid 6 to a hexagon 7. Molecular modeling with the MMFF force field gives a possible conformation of each self-assembly in different solvents and shows that the hydrophilic nitrobenzyl moiety prefers to be buried in the cavity of the resulting polygonal structures in nonpolar solvents, thus forming hydrogen bonds with the peripheral component building units.
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Affiliation(s)
- Liang Zhao
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, USA
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20
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Yang HB, Northrop BH, Zheng YR, Ghosh K, Stang PJ. Facile self-assembly of neutral dendritic metallocycles via oxygen-to-platinum coordination. J Org Chem 2009; 74:7067-74. [PMID: 19691266 PMCID: PMC2749078 DOI: 10.1021/jo9013589] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new approach for the fabrication of neutral dendritic metallocycles is described. By combining rigid 120 degrees dicarboxylate donor linkers funtionalized with [G0]-[G3] Frechet-type dendrons and complementary rigid 60 degrees and 120 degrees di-Pt(II) acceptor subunits, neutral rhomboidal metallodendrimers and hexagonal metallodendrimers, respectively, were prepared under mild conditions in high yields. The assemblies have well-defined shapes and sizes and were characterized by multinuclear NMR ((1)H and (31)P), mass spectrometry (ESI (+)-TOF-MS and APPI(+)-TOF-MS), and elemental analysis. Isotopically resolved mass spectrometry data support the formation of the neutral [2 + 2] rhomboidal, and [3 + 3] hexagonal metallodendrimers, and NMR data are consistent with the formation of all ensembles. The structures of the [G0] and [G1] neutral rhomboidal metallodendrimers (3a and 3b) were unambiguously confirmed via single-crystal X-ray crystallography. The shape and size of [G3] neutral hexagonal metallodendrimer 5d was established with MMFF force-field simulations.
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Affiliation(s)
- Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
| | - Brian H. Northrop
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Yao-Rong Zheng
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Koushik Ghosh
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
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21
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Maran U, Britt D, Fox CB, Harris JM, Orendt AM, Conley H, Davis R, Hlady V, Stang PJ. Self-assembly of a triangle-shaped, hexaplatinum-incorporated, supramolecular amphiphile in solution and at interfaces. Chemistry 2009; 15:8566-8577. [PMID: 19655346 PMCID: PMC2765193 DOI: 10.1002/chem.200900595] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The self-assembly and characterization of a novel supramolecular amphiphile built from a new 60 degree amphiphilic precursor that incorporates hydrophilic platinum(II) metals and hydrophobic dioctadecyloxy chains is reported. The amphiphilic macrocycle and its precursor compound have been characterized by multinuclear NMR spectroscopy, ESI-MS, and other standard techniques. The coacervate morphology of the amphiphile at the liquid-liquid interface has been studied by using confocal optical microscopy and in situ Raman spectroscopy. The self-assembly of the amphiphilic macrocycle at the air-water interface has been investigated through Langmuir-trough techniques. The study indicates the possible formation of surface micelle-like aggregates. The disparity between the experimental molecular areas and those derived from molecular models support the idea of aggregation. AFM images of the surface aggregates show the formation of a flat topology with arbitrary ridgelike patterns. Reasonable molecular-packing arrangements are proposed to explain the molecular organization within the observed structures.
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Affiliation(s)
- Umamageswaran Maran
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112 (USA), Fax: (+1)801-581-8433
| | - David Britt
- Department of Biological Engineering, Utah State University, Utah 84322 (USA)
| | | | - Joel M. Harris
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112 (USA), Fax: (+1)801-581-8433
- Department of Bioengineering, University of Utah, Utah 84112 (USA)
| | - Anita M. Orendt
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112 (USA), Fax: (+1)801-581-8433
- Centre for High Performance Computing, University of Utah, Utah 84112 (USA)
| | - Hiram Conley
- Department of Physics and Astronomy, Brigham Young University, Utah 84602 (USA)
| | - Robert Davis
- Department of Physics and Astronomy, Brigham Young University, Utah 84602 (USA)
| | - Vladamir Hlady
- Department of Bioengineering, University of Utah, Utah 84112 (USA)
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112 (USA), Fax: (+1)801-581-8433
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Yang HB, Northrop BH, Zheng YR, Ghosh K, Lyndon MM, Muddiman DC, Stang PJ. Synthesis of six-component metallodendrimers via [3 + 3] coordination-driven self-assembly. J Org Chem 2009; 74:3524-7. [PMID: 19344131 DOI: 10.1021/jo900067v] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new class of 120 degrees dendritic di-Pt(II) acceptor subunits has been designed and synthesized, from which six-component hexagonal metallodendrimers were easily formed with 120 degrees dendritic dipyridine donors via [3 + 3] coordination-driven self-assembly. The structures of all metallodendrimers are confirmed by multinuclear NMR, ESI-TOF-MS/ESI-FTMS, and elemental analysis. MMFF force-field simulations indicates that all metallodendrimers have a hexagonal ring with an internal radius of approximately 1.4 nm.
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Affiliation(s)
- Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062.
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23
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Abstract
My sojourn from classical physical-organic chemistry and solvolysis to self-assembly and supramolecular chemistry, over the last forty years, is described. My contributions to unsaturated reactive intermediates, namely vinyl cations and unsaturated carbenes, along with my decade-long involvement with polyvalent iodine chemistry, especially alkynyliodonium salts, as well as my more recent research with metal-ligand, coordination driven, and directed self-assembly of finite supramolecular ensembles are discussed.
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Affiliation(s)
- Peter J Stang
- University of Utah, Department of Chemistry, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
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24
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Tsui JA, Bolton TM, Sterenberg BT. Tungsten coordination chemistry of 1,4-bisdiphenylphosphinobutadiyne — Synthesis of coordination macrocycles and factors controlling diyne cycloaddition. CAN J CHEM 2009. [DOI: 10.1139/v08-123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The 1:1 reaction of [W(CO)4(2-picoline)2] (1) with Ph2PCtriple bondC-Ctriple bondCPPh2 (2) led to {[cis-W(CO)4]2(µ-Ph2PC4PPh2)2} (3), in which two bis(diphenylphosphino)butadiyne ligands bridge two tetracarbonyltungsten centres. Reaction of 1 with excess 2 led to [cis-W(CO)4(Ph2PC4PPh2-κ1-P)2] (4), in which two dangling bis-phosphines are coordinated to one metal centre, and reaction of 2 with two equivalents of 1 led to {[W(2-picoline)(CO)4]2(µ-Ph2PC4PPh2)} (5), in which one ligand bridges two tungsten centres. Combination of 4 and 5 led to the trimeric complex {[cis-W(CO)4]3(µ-Ph2PC4PPh2)3} (6), in which three tetracarbonyltungsten centres are bridged by three bisdiphenylphosphinobutadiyne ligands. The dimeric complex 3 showed no reactivity towards alkyne cycloaddition; however, the trimeric complex 6 undergoes cycloaddition at moderate temperatures to form {[W(CO)4]3[µ3-C12(Ph2P)6]} (8), which contains a cyclododecatrienetriyene ring. Comparison of structural data for the template complexes 3 and 6, as well that of previously described platinum template complexes, suggests that alkyne cycloaddition reactions are favoured by proximity of the alkynyl carbons α to phosphorus in adjacent ligands.Key words: coordination chemistry, diyne, cycloaddition, templated reaction, tungsten.
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Northrop BH, Yang HB, Stang PJ. Coordination-driven self-assembly of functionalized supramolecular metallacycles. Chem Commun (Camb) 2008:5896-908. [PMID: 19030534 PMCID: PMC2621066 DOI: 10.1039/b811712h] [Citation(s) in RCA: 289] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Coordination-driven self-assembly that combines rigid ditopic Pt(II) metal acceptors and bis-pyridyl organic donors provides a facile means of synthesizing well-defined metallacycles of predetermined size and geometry. Functionalization of the component acceptor or donor building blocks allows for the preparation of multifunctional supramolecular materials wherein the stoichiometry and position of individual functional moieties can be precisely controlled. The design, self-assembly, and applications of polyfunctional supramolecules incorporating functional moieties with host-guest, photonic, materials, and self-organizational properties is discussed.
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Affiliation(s)
- Brian H Northrop
- University of Utah Department of Chemistry, 315 So. 1400 E., Salt Lake City, UT, USA.
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Northrop BH, Yang HB, Stang PJ. Second-order self-organization in coordination-driven self-assembly: exploring the limits of self-selection. Inorg Chem 2008; 47:11257-68. [PMID: 18980302 PMCID: PMC2650397 DOI: 10.1021/ic801711q] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Self-organization during the self-assembly of a series of functionalized bispyridyl organic donors with complementary di-Pt(II) acceptors into supramolecular rhomboids and rectangles is explored. The connectivity and location of functional groups on the organic donors ensures that they do not interfere sterically or electronically with their respective binding sites. Carefully controlled reaction conditions are employed so that the only means of self-organization during self-assembly is through "second-order" effects arising from the distal functional groups themselves. With the selection of functionalized systems studied, the extent of second-order self-organization varies from essentially zero to quite pronounced.
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Wang L, Chen Q, Pan GB, Wan LJ, Zhang S, Zhan X, Northrop BH, Stang PJ. Nanopatterning of donor/acceptor hybrid supramolecular architectures on highly oriented pyrolytic graphite: a scanning tunneling microscopy study. J Am Chem Soc 2008; 130:13433-41. [PMID: 18783221 PMCID: PMC2653624 DOI: 10.1021/ja8040515] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hybrid supramolecular architectures have been fabricated with acceptor 1,4-bis(4-pyridylethynyl)-2,3-bis-dodecyloxy-benzene (PBP) and donor 2,6-bis(3,4,5-tris-dodecyloxy-phenyl)dithieno[3,2-b:2',3'-d]thiophene (DTT) compounds on highly oriented pyrolytic graphite (HOPG) surfaces, and their structures and molecular conductance are characterized by scanning tunneling microscopy/spectroscopy (STM/STS). Stable, one-component adlayers of PBP and DTT are also investigated. The coadsorption of two-component mixtures of PBP and DTT results in a variety of hybrid nanopattern architectures that differ from those of their respective one-component surface assemblies. Adjusting the acceptor/donor molar ratio in mixed adlayer assemblies results in dramatic changes in the structure of the hybrid nanopatterns. STS measurements indicate that the HOMO and LUMO energy levels of PBP and DTT on an HOPG surface are relatively insensitive to changes in the hybrid supramolecular architectures. These results provide important insight into the design and fabrication of two-dimensional hybrid supramolecular architectures.
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Affiliation(s)
- Ling Wang
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Qing Chen
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Ge-Bo Pan
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Li-Jun Wan
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Shiming Zhang
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Xiaowei Zhan
- Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Brian H. Northrop
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA
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Ghosh K, Zhao Y, Yang HB, Northrop BH, White HS, Stang PJ. Synthesis of a new family of hexakisferrocenyl hexagons and their electrochemical behavior. J Org Chem 2008; 73:8553-7. [PMID: 18841907 DOI: 10.1021/jo801692v] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The design and synthesis of two new hexakisferrocenyl hexagons has been achieved via coordination-driven self-assembly wherein the size and relative distribution of six ferrocene moieties has been precisely controlled. Insight into the structure and electronic properties of these supramolecules was obtained through electrochemical studies.
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Affiliation(s)
- Koushik Ghosh
- The Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, USA
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Zhao L, Northrop BH, Zheng YR, Yang HB, Lee HJ, Lee YM, Park JY, Chi KW, Stang PJ. Self-selection in the self-assembly of isomeric supramolecular squares from unsymmetrical bis(4-pyridyl)acetylene ligands. J Org Chem 2008; 73:6580-6. [PMID: 18683976 PMCID: PMC2621067 DOI: 10.1021/jo800957r] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new approach wherein steric interactions between substituents of unsymmetrical bis(4-pyridyl)acetylene ligands dictate the self-selection of single isomers of [4 + 4] self-assembled squares is presented. Each [4 + 4] self-assembly is characterized by multinuclear (31)P and (1)H NMR spectroscopies and electrospray ionization mass spectrometry. NMR spectroscopic studies are used to provide a means of evaluating the efficiency of bulky substituents at proximal or remote positions relative to the Pt-N bonding motif to direct self-selection. Molecular modeling using the MMFF force field is utilized to determine the relative energy of different isomers of each assembly, and modeling results reasonably explain the trend in self-selectivity with varying pyridyl substitution.
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Affiliation(s)
- Liang Zhao
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, USA
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Tanabe KK, Wang Z, Cohen SM. Systematic Functionalization of a Metal−Organic Framework via a Postsynthetic Modification Approach. J Am Chem Soc 2008; 130:8508-17. [DOI: 10.1021/ja801848j] [Citation(s) in RCA: 328] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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