1201
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Rodrı́guez J, Esquivias J. Synthesis of nanostructures based on 1,4- and 1,3,5-phenylethynyl units with π-extended conjugation. Carbon networks dendrimer base units. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01137-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1202
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Affiliation(s)
- Ei-ichi Negishi
- Herbert C. Brown Laboratories of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, USA
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1203
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Morisaki Y, Chen H, Chujo Y. Synthesis and Properties of Conjugated Copolymer Based on Poly(p-phenylenevinylene) Containing Tricarbonyl(arene)chromium and Thiophene Units in the Main Chain. Polym J 2003. [DOI: 10.1295/polymj.35.446] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1204
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Li CL, Shieh SJ, Lin SC, Liu RS. Synthesis and spectroscopic properties of finite Ph2N-containing oligo(arylenevinylene) derivatives that emit blue to red fluorescence. Org Lett 2003; 5:1131-4. [PMID: 12659591 DOI: 10.1021/ol034246v] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[structure: see text] A series of oligo(phenylenevinylene) (OPV) derivatives with finite conjugation units were prepared in short steps from few building blocks. The central and terminal aryl groups of these OPV dyes contain cyano and Ph(2)N substituents, respectively, which affect color of fluorescence. The wavelength ranges from 472 nm (blue) to 614 nm (red) depending on the position of the cyano group.
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Affiliation(s)
- Chien-Le Li
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30043, ROC
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1205
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1206
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Kaneko T, Makino T, Miyaji H, Teraguchi M, Aoki T, Miyasaka M, Nishide H. Ladderlike ferromagnetic spin coupling network on a pi-conjugated pendant polyradical. J Am Chem Soc 2003; 125:3554-7. [PMID: 12643717 DOI: 10.1021/ja026929w] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A poly(9,10-anthryleneethynylene)-based polyradical with two pendant stable phenoxyls in one anthracene skeleton was newly synthesized via polymerization of the corresponding bromoethynylanthracene monomer using a Pd(0) catalyst. The average molecular weight of the polymer reached M(n) = 5 x 10(3) and was soluble in common organic solvents. The polyradical was prepared from the corresponding hydroxyl precursor polymer and was appropriately stable at room temperature. The ESR spectrum of the corresponding monomeric radical suggested an effectively delocalized spin density distribution on the backbone anthracene. The magnetization and the static magnetic susceptibility of the polyradical were measured using a SQUID magnetometer. The large average spin quantum number (S = (5)/(2)) of the polyradical indicated that the ferromagnetic spin coupling network of the polyradical had spread throughout the pi-conjugated chain and that it was considerably insensitive to spin defects.
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Affiliation(s)
- Takashi Kaneko
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan.
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1207
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Simpson CK, Da Re RE, Pollagi TP, Steele IM, Dallinger RF, Hopkins MD. Effects of cation–anion interactions on the structures and photophysical properties of anionic d0 tungsten–benzylidyne complexes. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01292-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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1208
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Masuo S, Yoshikawa H, Asahi T, Masuhara H, Sato T, Jiang DL, Aida T. Fluorescence Spectroscopic Properties and Single Aggregate Structures of π-Conjugated Wire-Type Dendrimers. J Phys Chem B 2003. [DOI: 10.1021/jp021643z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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1209
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Wilson JN, Bangcuyo CG, Erdogan B, Myrick ML, Bunz UHF. Nanostructuring of Poly(aryleneethynylene)s: Formation of Nanotowers, Nanowires, and Nanotubules by Templated Self-Assembly. Macromolecules 2003. [DOI: 10.1021/ma025878k] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James N. Wilson
- USC NanoCenter and Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Carlito G. Bangcuyo
- USC NanoCenter and Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Belma Erdogan
- USC NanoCenter and Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Michael L. Myrick
- USC NanoCenter and Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- USC NanoCenter and Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
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1210
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Rodrı́guez J, Martı́n-Villamil R, Lafuente A. π-Extended conjugate phenylacetylenes. Synthesis of 4-[(E) and (Z)-2-(4-ethenylphenyl)ethenyl]pyridine. Dimerization, quaternation and formation of charge–transfer complexes. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(02)01628-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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1211
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Zhou CZ, Liu T, Xu JM, Chen ZK. Synthesis, Characterization, and Physical Properties of Monodisperse Oligo(p-phenyleneethynylene)s. Macromolecules 2003. [DOI: 10.1021/ma021656a] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuan-Zhen Zhou
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore 117602, Republic of Singapore
| | - Tianxi Liu
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore 117602, Republic of Singapore
| | - Jing-Mei Xu
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore 117602, Republic of Singapore
| | - Zhi-Kuan Chen
- Institute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore 117602, Republic of Singapore
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1212
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Bangcuyo CG, Ellsworth JM, Evans U, Myrick ML, Bunz UHF. Quinoxaline-Based Poly(aryleneethynylene)s. Macromolecules 2003. [DOI: 10.1021/ma0257200] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carlito G. Bangcuyo
- USC NanoCenter and Department of Chemistry and Biochemistry,The University of South Carolina, Columbia, South Carolina 29208
| | - Joe M. Ellsworth
- USC NanoCenter and Department of Chemistry and Biochemistry,The University of South Carolina, Columbia, South Carolina 29208
| | - Una Evans
- USC NanoCenter and Department of Chemistry and Biochemistry,The University of South Carolina, Columbia, South Carolina 29208
| | - Michael L. Myrick
- USC NanoCenter and Department of Chemistry and Biochemistry,The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- USC NanoCenter and Department of Chemistry and Biochemistry,The University of South Carolina, Columbia, South Carolina 29208
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1213
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Faller JW, Kultyshev RG, Parr J. Alkynyl germatranes as alternative reagents for the preparation of biarylethynes. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(02)02595-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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1214
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Armaroli N, Accorsi G, Gisselbrecht JP, Gross M, Eckert JF, Nierengarten JF. Copper(i) complexes of 1,10-phenanthroline–oligophenylenevinylene conjugates. NEW J CHEM 2003. [DOI: 10.1039/b307065b] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1215
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Wilson JN, Josowicz M, Wang Y, Bunz UHF. Cruciform π-systems: hybrid phenylene-ethynylene/phenylene-vinylene oligomers. Chem Commun (Camb) 2003:2962-3. [PMID: 14703808 DOI: 10.1039/b312156a] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cruciform pentamers 3a-g were synthesized by a combined Horner-Sonogashira approach; their band gaps vary significantly with emission varying from blue to red depending upon their substituent pattern.
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Affiliation(s)
- James N Wilson
- Department of Chemistry and Biochemistry, Georgia Institute of Technology, 770 State St., Atlanta, GA 30332, USA
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1216
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Laskoski M, Morton JGM, Smith MD, Bunz UHF. A supramolecular organometallic–metalorganic square. Chem Commun (Camb) 2003. [DOI: 10.1039/b304169g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1217
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Grubbs RH, Trnka TM, Sanford MS. Transition Metal–Carbene Complexes in Olefin Metathesis and Related Reactions. CURRENT METHODS IN INORGANIC CHEMISTRY 2003. [DOI: 10.1016/s1873-0418(03)80006-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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1218
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Balova IA, Morozkina SN, Knight DW, Vasilevsky SF. A one-pot synthesis of 1-arylalka-1,3-diynes by sequential acetylene zipper and Sonogashira reactions. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(02)02496-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1219
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Kokil A, Huber C, Caseri WR, Weder C. Synthesis of π-Conjugated Organometallic Polymer Networks. MACROMOL CHEM PHYS 2003. [DOI: 10.1002/macp.200290054] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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1220
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Khan MS, Al-Mandhary MRA, Al-Suti MK, Ahrens B, Mahon MF, Male L, Raithby PR, Boothby CE, Köhler A. Synthesis, characterisation and optical spectroscopy of diynes and poly-ynes containing derivatised fluorenes in the backbone. Dalton Trans 2003. [DOI: 10.1039/b208963g] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1221
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Alonso DA, Nájera C, Pacheco MC. A copper- and amine-free Sonogashira-type coupling procedure catalyzed by oxime palladacycles. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)02335-3] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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1222
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Wilson JN, Windscheif PM, Evans U, Myrick ML, Bunz UHF. Band Gap Engineering of Poly(p-phenyleneethynylene)s: Cross-Conjugated PPE−PPV Hybrids. Macromolecules 2002. [DOI: 10.1021/ma025616i] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- James N. Wilson
- Department of Chemistry and Biochemistry, and USC NanoCenter, The University of South Carolina, Columbia, South Carolina 29208, and Hirsch-Apotheke von 1836, Biergasse 1, D-53498 Bad Breisig, FRG
| | - Paul M. Windscheif
- Department of Chemistry and Biochemistry, and USC NanoCenter, The University of South Carolina, Columbia, South Carolina 29208, and Hirsch-Apotheke von 1836, Biergasse 1, D-53498 Bad Breisig, FRG
| | - Una Evans
- Department of Chemistry and Biochemistry, and USC NanoCenter, The University of South Carolina, Columbia, South Carolina 29208, and Hirsch-Apotheke von 1836, Biergasse 1, D-53498 Bad Breisig, FRG
| | - Michael L. Myrick
- Department of Chemistry and Biochemistry, and USC NanoCenter, The University of South Carolina, Columbia, South Carolina 29208, and Hirsch-Apotheke von 1836, Biergasse 1, D-53498 Bad Breisig, FRG
| | - Uwe H. F. Bunz
- Department of Chemistry and Biochemistry, and USC NanoCenter, The University of South Carolina, Columbia, South Carolina 29208, and Hirsch-Apotheke von 1836, Biergasse 1, D-53498 Bad Breisig, FRG
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1223
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Dong YB, Jin GX, Smith MD, Huang RQ, Tang B, zur Loye HC. [Ag(2)(C(33)H(26)N(2)O(2))(H(2)O)(2)(SO(3)CF(3))(2)].0.5C(6)H(6): a luminescent supramolecular silver(I) complex based on metal-carbon and metal-heteroatom interactions. Inorg Chem 2002; 41:4909-14. [PMID: 12230395 DOI: 10.1021/ic020228i] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel fulvene-type bidentate ligand 1 has been synthesized by an aroylation reaction of cyclohexyl-substituted cyclopentadienyl anions. Compound 1 crystallizes in the triclinic space group P(-)1, with a = 7.0419(5) A, b = 11.9360(8) A, c = 15.6470(11) A, alpha = 85.1440(10) degrees, beta = 78.1140(10) degrees, gamma = 74.5360(10) degrees, V = 1239.76(15) A(3), and Z = 2. The coordination chemistry of 1 was investigated, and a novel Ag-containing coordination polymer (2), linked by both Ag-heteroatom and Ag-carbon interactions, has been synthesized. The coordination polymer has been fully characterized by infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction. Compound 2 crystallizes in the triclinic space group P(-)1, with a = 7.1654(5) A, b = 15.7277(11) A, c = 18.8157(13) A, alpha = 73.5150(10) degrees, beta = 89.0410(10) degrees, gamma = 89.0970(10) degrees, V = 1355.19(14) A(3), and Z = 2. The solid-state structure of 2 features a one-dimensional double-chain motif. These double chains are in turn cross-linked to each other via strong interchain O-H...O hydrogen bonds, forming a novel two-dimensional network with remarkably large cavities (effective cross section of ca. 21 x 15 A) that are occupied by benzene guest molecules. Both compounds 1 and 2 are luminescent in the solid state, and a large blue-shift in the emission between the free ligand 1 and the ligand incorporated into complex 2 is observed.
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Affiliation(s)
- Yu-Bin Dong
- Department of Chemistry, Shandong Normal University, Jinan 250014, P. R. China.
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1224
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Mio MJ, Kopel LC, Braun JB, Gadzikwa TL, Hull KL, Brisbois RG, Markworth CJ, Grieco PA. One-pot synthesis of symmetrical and unsymmetrical bisarylethynes by a modification of the sonogashira coupling reaction. Org Lett 2002; 4:3199-202. [PMID: 12227748 DOI: 10.1021/ol026266n] [Citation(s) in RCA: 239] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A modification of the Sonogoshira coupling reaction employing an amidine base and a substoichiometric amount of water generates symmetrical and unsymmetrical bisarylethynylenes in one pot through in situ deprotection of trimethylsilylethynylene-added intermediates.
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Affiliation(s)
- Matthew J Mio
- Department of Chemistry, Macalester College, St. Paul, Minnesota 55105, USA
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1225
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Erdogan B, Wilson JN, Bunz UHF. Synthesis and Mesoscopic Order of a Sugar-Coated Poly(p-phenyleneethynylene). Macromolecules 2002. [DOI: 10.1021/ma025564x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Belma Erdogan
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - James N. Wilson
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
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1226
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Kokil A, Shiyanovskaya I, Singer KD, Weder C. High charge carrier mobility in conjugated organometallic polymer networks. J Am Chem Soc 2002; 124:9978-9. [PMID: 12188648 DOI: 10.1021/ja026988+] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The improvement of charge transport in conjugated polymers is a focal point of current research. It is shown here that the carrier mobility can be substantially increased through the introduction of conjugated cross-links between the conjugated chains. Novel organometallic polymer networks based on a poly(p-phenylene ethynylene) (PPE) derivative and Pt0 were synthesized by ligand-exchange reactions between the linear PPE and a low-molecular Pt complex. Time-of-flight measurements revealed ambipolar charge carrier mobilities of up to 1.6 x 10-2 cm2 V-1 s-1 for these materials, which are an order of magnitude higher than those of the neat polymer and represent the highest mobilities yet observed in disordered conjugated polymers.
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Affiliation(s)
- Akshay Kokil
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, USA
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1227
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Tirapattur S, Belletête M, Drolet N, Bouchard J, Ranger M, Leclerc M, Durocher G. Spectroscopic Study of Intermolecular Interactions in Various Oligofluorenes: Precursors of Light-Emitting Polymers. J Phys Chem B 2002. [DOI: 10.1021/jp0143544] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Soujanya Tirapattur
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Michel Belletête
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Nicolas Drolet
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Jimmy Bouchard
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Maxime Ranger
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Mario Leclerc
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
| | - Gilles Durocher
- Laboratoire de photophysique moléculaire, Département de Chimie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, Chaire de recherche du Canada en chimie des polymères photoactifs et électroactifs, Centre de recherche en sciences et ingénierie des macromolécules (CERSIM), Université Laval, Cité Universitaire, Québec, G1K 7P4, Canada, and Institute of Microstructural Sciences, National Research Council of Canada M-50, Montreal road, Ottawa, Ontario, K1A 0R6, Canada
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1228
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Waybright SM, McAlpine K, Laskoski M, Smith MD, Bunz UHF. Organometallic dendrimers based on (tetraphenylcyclobutadiene)cyclopentadienylcobalt modules. J Am Chem Soc 2002; 124:8661-6. [PMID: 12121108 DOI: 10.1021/ja026462p] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and characterization of novel organometallic polyphenylene dendrimers containing 24 or 44 phenyl rings and one cyclobutadiene(cyclopentadienyl)cobalt unit is reported. The dendrimers are made by the convergent CpCo(CO)(2)-mediated dimerization of di- or tetraethynyltolanes followed by a divergent core extension utilizing tetraphenylcyclopentadienone. The obtained dendrimers are air and water stable, soluble materials that show interesting differences in their hydrodynamic properties as evidenced by gel permeation chromatography. Scanning pulse voltammetry in solution shows that the dendrimers are oxidized at potentials ranging from 0.8 to 0.83 V. The more sterically encumbered the dendrimer, the higher its oxidation potential, that is, the more difficult oxidation is.
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Affiliation(s)
- Shane M Waybright
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208, USA
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1229
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Perahia D, Traiphol R, Bunz UHF. From single molecules to aggregates to gels in dilute solution: Self-organization of nanoscale rodlike molecules. J Chem Phys 2002. [DOI: 10.1063/1.1486215] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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1230
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Wright VA, Gates DP. Poly(p-phenylenephosphaalkene): A π-Conjugated Macromolecule Containing PC Bonds in the Main Chain. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/1521-3757(20020703)114:13<2495::aid-ange2495>3.0.co;2-q] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1231
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Wright VA, Gates DP. Poly(p-phenylenephosphaalkene): a pi-conjugated macromolecule containing P=C bonds in the main chain. Angew Chem Int Ed Engl 2002; 41:2389-92. [PMID: 12203603 DOI: 10.1002/1521-3773(20020703)41:13<2389::aid-anie2389>3.0.co;2-6] [Citation(s) in RCA: 136] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vincent A Wright
- Department of Chemistry University of British Columbia 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
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1232
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Cross-coupling reactions in the chemistry of silole-containing π-conjugated oligomers and polymers. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01152-x] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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1233
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Ricci A, Lo Sterzo C. A new frontier in the metal-catalyzed cross-coupling reaction field. The palladium-promoted metal–carbon bond formation. Scope and mechanism of a new tool in organometallic synthesis. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01274-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1234
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Affiliation(s)
- Joong Ho Moon
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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1235
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Egbe DAM, Birckner E, Klemm E. Highly luminescent diyne (?C?C?C?C?) containing hybrid polyphenyleneethynylene/poly(p-phenylenevinylene) polymer: Synthesis and characterization. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/pola.10359] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1236
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Synthesis of poly(p-phenylene vinylene)- and poly(phenylene ethynylene)-based polymers containingp-terphenyl in the main chain with alkoxyphenyl side groups. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/pola.10352] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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1237
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Tsolakis PK, Kallitsis JK, Godt A. Synthesis of Luminescent Rod−Coil Block Copolymers Using Atom Transfer Radical Polymerization. Macromolecules 2002. [DOI: 10.1021/ma020256k] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. K. Tsolakis
- Department of Chemistry, University of Patras, GR-265 00 Patras, Greece, and Institute of Chemical Engineering and High-Temperature Chemical Processes (ICE/HT), P.O. Box 1414, GR-265 00 Patras, Greece
| | - J. K. Kallitsis
- Department of Chemistry, University of Patras, GR-265 00 Patras, Greece, and Institute of Chemical Engineering and High-Temperature Chemical Processes (ICE/HT), P.O. Box 1414, GR-265 00 Patras, Greece
| | - A. Godt
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
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1238
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Yang NC, Park YH, Suh DH. Synthesis and characterization of polyaryleneethynylenes having 1,2-diphenylmaleimide in the backbone. REACT FUNCT POLYM 2002. [DOI: 10.1016/s1381-5148(02)00053-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1239
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Liu Y, Li Y, Schanze KS. Photophysics of π-conjugated oligomers and polymers that contain transition metal complexes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2002. [DOI: 10.1016/s1389-5567(02)00004-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1240
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Brizius G, Kroth S, Bunz UHF. Alkyne-Bridged Carbazole Polymers by Alkyne Metathesis. Macromolecules 2002. [DOI: 10.1021/ma011788o] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Glen Brizius
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Stephen Kroth
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
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1241
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Egbe DAM, Roll CP, Birckner E, Grummt UW, Stockmann R, Klemm E. Side Chain Effects in Hybrid PPV/PPE Polymers. Macromolecules 2002. [DOI: 10.1021/ma012195g] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel Ayuk Mbi Egbe
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
| | - Carsten Peter Roll
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
| | - Eckhard Birckner
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
| | - Ulrich-Walter Grummt
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
| | - Regina Stockmann
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
| | - Elisabeth Klemm
- Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany; Institut für Anorganische und Analytische Chemie der Friedrich-Schiller-Universität, August-Bebel-Strasse 2, D-07743 Jena, Germany; and Institut für Physikalische Chemie der Friedrich-Schiller-Universität Jena, Lessingstrasse 10, D-07743 Jena, Germany
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1242
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Wilson JN, Waybright SM, McAlpine K, Bunz UHF. Acetylene Gas: A Reagent in the Synthesis of High Molecular Weight Poly(p-phenyleneethynylene)s Utilizing Very Low Catalyst Loadings. Macromolecules 2002. [DOI: 10.1021/ma020171j] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James N. Wilson
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Shane M. Waybright
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Kanika McAlpine
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
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1243
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Spiliopoulos IK, Mikroyannidis JA. Poly(phenylene ethynylene)s with alkoxyphenyl substituents. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/pola.10229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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1244
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Herndon JW. The chemistry of the carbontransition metal double and triple bond: annual survey covering the year 2000. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(01)00445-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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1245
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Yamamoto T, Lee BL. New Soluble, Coplanar Poly(naphthalene-2,6-diyl)-Type π-Conjugated Polymer, Poly(pyrimido[5,4-d]pyrimidine-2,6-diyl), with Nitrogen Atoms at All of the o-Positions. Synthesis, Solid Structure, Optical Properties, Self-Assembling Phenomena, and Redox Behavior. Macromolecules 2002. [DOI: 10.1021/ma011632o] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takakazu Yamamoto
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Bang-Lin Lee
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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1246
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Göller AH, Grummt UW. Detailed energy decomposition of the rotational barrier in 2,2′-bipyridine: a density functional study. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00065-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1247
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Abstract
We prepared a rigid, chiral polymer (1) from optically active hydrobenzoin-based subunits. Nonracemic monomer units 6 and 8 were prepared by asymmetric dihydroxylation (AD) methodology and polymerization was carried out under Sonagashira coupling conditions. Polymer 1 was obtained in good yield with a molecular weight M(n) = 5,100 (PDI = 2.3). Modeling suggests that polymer 1 could form a stable helical mainchain conformation in solution or the solid state. The chiroptical data of the polymer and a low-molecular weight model compound (9) are compared.
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Affiliation(s)
- Anna Bieging
- Department of Chemistry, University of Arizona, Tucson, Arizona 85721-0041, USA
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1248
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Bangcuyo CG, Rampey-Vaughn ME, Quan LT, Angel SM, Smith MD, Bunz UHF. Quinoline-Containing, Conjugated Poly(aryleneethynylene)s: Novel Metal and H+-Responsive Materials. Macromolecules 2002. [DOI: 10.1021/ma0116654] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carlito G. Bangcuyo
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Mary E. Rampey-Vaughn
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Lan T. Quan
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - S. Michael Angel
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
| | - Uwe H. F. Bunz
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, South Carolina 29208
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1249
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Masuo S, Yoshikawa H, Asahi T, Masuhara H, Sato T, Jiang DL, Aida T. Repetitive Contraction and Swelling Behavior of Gel-like Wire-type Dendrimer Assemblies in Solution Layer by Photon Pressure of a Focused Near-infrared Laser Beam. J Phys Chem B 2002. [DOI: 10.1021/jp013367e] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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1250
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Maruyama S, Kawanishi Y. Syntheses and emission properties of novel violet-blue emissive aromatic bis(diazaborole)s. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b203485a] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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