4201
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Li Z, Dong Y, Häussler M, Lam JWY, Dong Y, Wu L, Wong KS, Tang BZ. Synthesis of, Light Emission from, and Optical Power Limiting in Soluble Single-Walled Carbon Nanotubes Functionalized by Disubstituted Polyacetylenes. J Phys Chem B 2006; 110:2302-9. [PMID: 16471817 DOI: 10.1021/jp056413+] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-walled carbon nanotubes are covalently functionalized by conjugated polyacetylenes through their cyclization reactions with poly(1-phenyl-1-alkyne) and poly(diphenylacetylene) derivatives carrying azido functional groups at the ends of their alkyl pendants. The resultant polyene nanotube addends are soluble in common solvents, emit intense visible lights and strongly attenuate the power of harsh laser pulses.
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Affiliation(s)
- Zhen Li
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4202
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4203
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Tong H, Dong Y, Häussler M, Lam JWY, Sung HHY, Williams ID, Sun J, Tang BZ. Tunable aggregation-induced emission of diphenyldibenzofulvenes. Chem Commun (Camb) 2006:1133-5. [PMID: 16514463 DOI: 10.1039/b515798f] [Citation(s) in RCA: 151] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nonemissive fulvenes can be induced to luminesce by aggregate formation, with the crystalline aggregates emitting bluer lights more intensely than their amorphous counterparts.
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Affiliation(s)
- Hui Tong
- Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4204
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Han MR, Hara M. Chain length-dependent photoinduced formation of azobenzene aggregates. NEW J CHEM 2006. [DOI: 10.1039/b511462d] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4205
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4206
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Uthirakumar P, Hong CH, Suh EK, Lee YS. Preparation and photophysical properties of organic fluorescent polymers and their nanoparticles. J Appl Polym Sci 2006. [DOI: 10.1002/app.24896] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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4207
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Zhan X, Risko C, Korlyukov A, Sena F, Timofeeva TV, Antipin MY, Barlow S, Brédas JL, Marder SR. Comparative studies of the geometric and electronic properties of 1,1-disubstituted-2,3,4,5-tetraphenylsiloles and 1,1,2,2-tetramethyl-3,4,5,6-tetraphenyl-1,2-disila-3,5-cyclohexadiene. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b605343b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4208
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Chen J, Kwok HS, Tang BZ. Silole-containing poly(diphenylacetylene): Synthesis, characterization, and light emission. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21359] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4209
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Tong H, Hong Y, Dong Y, Häussler M, Lam JWY, Li Z, Guo Z, Guo Z, Tang BZ. Fluorescent “light-up” bioprobes based on tetraphenylethylene derivatives with aggregation-induced emission characteristics. Chem Commun (Camb) 2006:3705-7. [PMID: 17047818 DOI: 10.1039/b608425g] [Citation(s) in RCA: 469] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aggregation in poor solvents and complexation with calf thymus DNA and bovine serum albumin turn "on" the fluorescence of tetraphenylethylene derivatives, due to the restriction of intra-molecular rotations of the dyes in the aggregates and complexes.
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Affiliation(s)
- Hui Tong
- Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4210
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Ohshita J, Arase H, Sumida T, Mimura N, Yoshimoto K, Tada Y, Kunugi Y, Harima Y, Kunai A. Preparation of polymers containing Fe(0)-coordinated 2,5-diethynylsilole units. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2005.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4211
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Wang Z, Shao H, Ye J, Tang L, Lu P. Dibenzosuberenylidene-Ended Fluorophores: Rapid and Efficient Synthesis, Characterization, and Aggregation-Induced Emissions. J Phys Chem B 2005; 109:19627-33. [PMID: 16853538 DOI: 10.1021/jp053113j] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of pi-conjugated compounds ending with dibenzosuberenylidene were synthesized efficiently. Their luminescence efficiencies were well-tuned by structural modification. Moreover, relative emission intensities were strongly affected by their existing appearances and exhibited aggregation-induced emission (AIE) behavior. Thus, emissions from nanoparticles, films, or powders were found to be more efficient than those from solutions. It demonstrated that these synthesized compounds might be practically used as fluorescent materials for potential optoelectronic applications.
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Affiliation(s)
- Zixing Wang
- Chemistry Department, Zhejiang University, Hangzhou 310027, P. R. China
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4212
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Wang F, Luo J, Chen J, Huang F, Cao Y. Conjugated random and alternating 2,3,4,5-tetraphenylsilole-containing polyfluorenes: Synthesis, characterization, strong solution photoluminescence, and light-emitting diodes. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.06.031] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4213
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Davis R, Das S. Fluorescent Aggregates of 1-(p-Butyloxyphenyl)-4-(p-cyanophenyl)Buta-1E,3E-Diene: Temperature Sensing and Photoimaging Applications. J Fluoresc 2005; 15:749-53. [PMID: 16341793 DOI: 10.1007/s10895-005-2983-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2005] [Accepted: 08/17/2005] [Indexed: 10/25/2022]
Abstract
The use of fluorescent solid films of a 1-(p-butyloxyphenyl)-4-(p-cyanophenyl)buta-1E, 3E-diene as an efficient temperature sensor is described. The fluorescence changes in these films are proposed to occur due to a reversible temperature-dependent variation in its monomer-aggregate ratio. Photoisomerization of the butadiene chromophore in solid films was observed to occur only at elevated temperatures (>120 degrees C), making the material also useful for reversible photochemical generation of fluorescence patterns with nondestructive readout properties.
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Affiliation(s)
- Riju Davis
- Photosciences and Photonics, Chemical Sciences Division, Regional Research Laboratory (CSIR), Trivandrum, India
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4214
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Mutai T, Satou H, Araki K. Reproducible on-off switching of solid-state luminescence by controlling molecular packing through heat-mode interconversion. NATURE MATERIALS 2005; 4:685-7. [PMID: 16113683 DOI: 10.1038/nmat1454] [Citation(s) in RCA: 310] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2005] [Accepted: 06/23/2005] [Indexed: 05/04/2023]
Abstract
Organic luminescent solids are attracting increasing interest in various fields of application. Modification or alteration of the chemical structures of their component molecules is the most common approach for tuning their luminescence properties. However, for dynamic tuning or switching of solid-state luminescence with high efficiency and reproducibility successful examples are limited as chemical reactions in the solid state frequently encounter insufficient conversion, one-way reactions or loss of their luminescence properties. One promising approach is to control the luminescence properties by altering the mode of solid-state molecular packing without chemical reactions. Here, we show that 2,2':6',2''-terpyridine, practically non-luminescent in the form of amorphous solid or needle crystal, shows strong blue luminescence upon formation of a plate crystal. Efficient and reproducible on-off switching of solid-state luminescence is demonstrated by heat-mode interconversion between the plate and needle crystals. Because alteration of the mode of molecular packing does not require chemical reactions, the present findings would open the way for the development of novel organic luminescent solids that can be switched on and off by external thermal stimuli.
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Affiliation(s)
- Toshiki Mutai
- Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan.
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4215
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Lim SJ, An BK, Park SY. Bistable Photoswitching in the Film of Fluorescent Photochromic Polymer: Enhanced Fluorescence Emission and Its High Contrast Switching. Macromolecules 2005. [DOI: 10.1021/ma0504163] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Seon-Jeong Lim
- School of Materials Science & Engineering, Seoul National University, San 56-1 Shillim-dong, Kwanak-gu, Seoul 151-744, Korea
| | - Byeong-Kwan An
- School of Materials Science & Engineering, Seoul National University, San 56-1 Shillim-dong, Kwanak-gu, Seoul 151-744, Korea
| | - Soo Young Park
- School of Materials Science & Engineering, Seoul National University, San 56-1 Shillim-dong, Kwanak-gu, Seoul 151-744, Korea
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4216
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Mi B, Dong Y, Li Z, Lam JWY, Häussler M, Sung HHY, Kwok HS, Dong Y, Williams ID, Liu Y, Luo Y, Shuai Z, Zhu D, Tang BZ. Making silole photovoltaically active by attaching carbazolyl donor groups to the silolyl acceptor core. Chem Commun (Camb) 2005:3583-5. [PMID: 16010331 DOI: 10.1039/b505683g] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Appending carbazolyl groups to a hexaphenylsilole core yielded thermally and morphologically stable carbazolylsiloles; the silole carrying two carbazolyl peripheral groups showed photovoltaic activity.
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Affiliation(s)
- Baoxiu Mi
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4217
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Dong Y, Lam JWY, Li Z, Qin A, Tong H, Dong Y, Feng X, Tang BZ. Vapochromism of Hexaphenylsilole. J Inorg Organomet Polym Mater 2005. [DOI: 10.1007/s10904-005-5546-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4218
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Ohshita J, Hamamoto D, Kimura K, Kunai A. Anodic polymerization of dithienosilole and electroluminescent properties of the resulting polymer. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.03.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4219
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Toal SJ, Sohn H, Zakarov LN, Kassel WS, Golen JA, Rheingold AL, Trogler WC. Syntheses of Oligometalloles by Catalytic Dehydrocoupling. Organometallics 2005. [DOI: 10.1021/om0490886] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sarah J. Toal
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - Honglae Sohn
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - Lev N. Zakarov
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - W. Scott Kassel
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - James A. Golen
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
| | - William C. Trogler
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358
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4220
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Thanasekaran P, Liao RT, Liu YH, Rajendran T, Rajagopal S, Lu KL. Metal-containing molecular rectangles: synthesis and photophysical properties. Coord Chem Rev 2005. [DOI: 10.1016/j.ccr.2004.11.006] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4221
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Itami K, Ohashi Y, Yoshida JI. Triarylethene-Based Extended π-Systems: Programmable Synthesis and Photophysical Properties. J Org Chem 2005; 70:2778-92. [PMID: 15787572 DOI: 10.1021/jo0477401] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] On the basis of an efficient Pd-catalyzed triarylation to a vinylsilane platform, four types of structurally well-defined triarylethene-based extended pi-systems have been prepared very rapidly. From a compound library constructed by the present method, it was possible to find a number of interesting fluorescent materials, as well as interesting fluorescent properties such as aggregation-induced enhanced emission. A useful method for the rapid synthesis and property evaluation has also been developed.
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Affiliation(s)
- Kenichiro Itami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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4222
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Hyperbranched Poly(ferrocenylene)s Containing Groups 14 and 15 Elements: Syntheses, Optical and Thermal Properties, and Pyrolytic Transformations into Nanostructured Magnetoceramics. J Inorg Organomet Polym Mater 2005. [DOI: 10.1007/s10904-004-2379-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4223
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Wang F, Luo J, Yang K, Chen J, Huang F, Cao Y. Conjugated Fluorene and Silole Copolymers: Synthesis, Characterization, Electronic Transition, Light Emission, Photovoltaic Cell, and Field Effect Hole Mobility. Macromolecules 2005. [DOI: 10.1021/ma047561l] [Citation(s) in RCA: 151] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Feng Wang
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Jie Luo
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Kaixia Yang
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Junwu Chen
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, Guangzhou 510640, China
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4224
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Studies on the aggregation-induced emission of silole film and crystal by time-resolved fluorescence technique. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2004.12.103] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4225
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Toal SJ, Magde D, Trogler WC. Luminescent oligo(tetraphenyl)silole nanoparticles as chemical sensors for aqueous TNT. Chem Commun (Camb) 2005:5465-7. [PMID: 16261248 DOI: 10.1039/b509404f] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Colloidal oligo(tetraphenyl)silole nanoparticles in THF/H2O suspensions show increased luminescence and offer a method to detect TNT in an aqueous environment.
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Affiliation(s)
- Sarah J Toal
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
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4226
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Mo Y, Tian R, Shi W, Cao Y. Ultraviolet-emitting conjugated polymer poly(9,9′-alkyl-3,6-silafluorene) with a wide band gap of 4.0 eV. Chem Commun (Camb) 2005:4925-6. [PMID: 16205801 DOI: 10.1039/b507518a] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ultraviolet-emitting conjugated polymer, poly(9,9'-alkyl-3,6-silafluorene) with a wide band gap of 4.0 eV, has been synthesized and characterized.
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Affiliation(s)
- Yueqi Mo
- Institute of Optoelectronic Materials & Devices, Key Laboratory of Special Functional Materials and Advanced Manufacturing Technology, South China University of Technology, Guangzhou, P. R. China 510640
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4227
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Hameurlaine A, Dehaen W, Peng H, Xie Z, Tang BZ. Synthesis and Light‐Emitting Properties of a New Conjugated Polymer Containing Carbazole and Quinoxaline Moieties. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2004. [DOI: 10.1081/ma-120028208] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4228
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Chan CPY, Haeussler M, Zhong Tang B, Dong Y, Sin KK, Mak WC, Trau D, Seydack M, Renneberg R. Silole nanocrystals as novel biolabels. J Immunol Methods 2004; 295:111-8. [PMID: 15627616 DOI: 10.1016/j.jim.2004.09.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2004] [Accepted: 09/22/2004] [Indexed: 12/01/2022]
Abstract
A novel class of biofunctional silole nanocrystals with the potential to create highly sensitive immunoassay was firstly demonstrated. Biolabels were constructed by encapsulating nanocrystalline hexaphenylsilole [Ph2Si(CPh)4HPS] within ultrathin polyelectrolyte layers via the layer-by-layer (LbL) technique that provided an "interface" for the attachment of antibodies. A high ratio of fluorescent dyes to biomolecules (F/P ratio; 2.4 x 10(3)) was achieved without self-quenching problem. The aggregation-induced emission (AIE) feature offered silole biolabels the sensitivity 40- to 140-fold higher than that of a start-of-the-art immunoassay using directly fluorescent-labeled antibodies.
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Affiliation(s)
- Cangel Pui-Yee Chan
- Department of Chemistry, Biosensors and Bioelectronics Laboratory, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4229
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Boydston AJ, Pagenkopf BL. Improving Quantum Efficiencies of Siloles and Silole-Derived Butadiene Chromophores through Structural Tuning. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200461844] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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4230
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Lim SJ, An BK, Jung SD, Chung MA, Park SY. Photoswitchable Organic Nanoparticles and a Polymer Film Employing Multifunctional Molecules with Enhanced Fluorescence Emission and Bistable Photochromism. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200461172] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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4231
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Boydston AJ, Pagenkopf BL. Improving Quantum Efficiencies of Siloles and Silole-Derived Butadiene Chromophores through Structural Tuning. Angew Chem Int Ed Engl 2004; 43:6336-8. [PMID: 15558664 DOI: 10.1002/anie.200461844] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Andrew J Boydston
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
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4232
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Lim SJ, An BK, Jung SD, Chung MA, Park SY. Photoswitchable Organic Nanoparticles and a Polymer Film Employing Multifunctional Molecules with Enhanced Fluorescence Emission and Bistable Photochromism. Angew Chem Int Ed Engl 2004; 43:6346-50. [PMID: 15558667 DOI: 10.1002/anie.200461172] [Citation(s) in RCA: 296] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Seon-Jeong Lim
- School of Materials Science and Engineering ENG445, Seoul National University, San 56-1, Shillim-dong, Kwanak-ku, Seoul 151-744, Korea
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4233
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Lee J, Liu QD, Bai DR, Kang Y, Tao Y, Wang S. 2,3,4,5-Tetrafunctionalized Siloles: Syntheses, Structures, Luminescence, and Electroluminescence. Organometallics 2004. [DOI: 10.1021/om0494216] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junghyun Lee
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Qin-De Liu
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Dong-Ren Bai
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Youngjin Kang
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Ye Tao
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Suning Wang
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada, Department of Science Education, Kangwon National University, Chuncheon, 200-701, Korea, and Institute for Microstructural Science, National Research Council of Canada, Ottawa K1A 0R6, Canada
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4234
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Chen J, Xu B, Ouyang X, Tang BZ, Cao Y. Aggregation-Induced Emission of cis,cis-1,2,3,4-Tetraphenylbutadiene from Restricted Intramolecular Rotation. J Phys Chem A 2004. [DOI: 10.1021/jp048475q] [Citation(s) in RCA: 254] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junwu Chen
- Institute of Polymer Optoelectronic Materials & Devices, South China University of Technology, Guangzhou 510640, People's Republic of China, and Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Bin Xu
- Institute of Polymer Optoelectronic Materials & Devices, South China University of Technology, Guangzhou 510640, People's Republic of China, and Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Xiaoying Ouyang
- Institute of Polymer Optoelectronic Materials & Devices, South China University of Technology, Guangzhou 510640, People's Republic of China, and Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Ben Zhong Tang
- Institute of Polymer Optoelectronic Materials & Devices, South China University of Technology, Guangzhou 510640, People's Republic of China, and Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials & Devices, South China University of Technology, Guangzhou 510640, People's Republic of China, and Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
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4235
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Kim BH, Woo HG. Dehydrocoupling, Redistributive Coupling, and Addition of Main Group 4 Hydrides. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-3055(04)52003-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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4236
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4237
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Manimaran B, Thanasekaran P, Rajendran T, Liao RT, Liu YH, Lee GH, Peng SM, Rajagopal S, Lu KL. Self-assembly of octarhenium-based neutral luminescent rectangular prisms. Inorg Chem 2003; 42:4795-7. [PMID: 12895097 DOI: 10.1021/ic034172j] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Self-assembly of rhenium-based nanoscale rectangular prismatic boxes has been achieved in quantitative conversion. The fac-rhenium corner provided three mutually perpendicular coordination sites and served as a good candidate for the construction of 3-D boxes. These are the first Re-based, neutral, luminescent prisms of M(8)L(2)L'(8) type that has been characterized crystallographically. Their luminescent properties and molecular recognition capabilities make these molecular prisms interesting supramolecules.
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Affiliation(s)
- Bala Manimaran
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
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4238
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4239
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4240
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Manimaran B, Thanasekaran P, Rajendran T, Lin RJ, Chang IJ, Lee GH, Peng SM, Rajagopal S, Lu KL. Luminescence enhancement induced by aggregation of alkoxy-bridged rhenium(I) molecular rectangles. Inorg Chem 2002; 41:5323-5. [PMID: 12377024 DOI: 10.1021/ic020364n] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Self-assembly of rhenium(I)-based molecular rectangles containing long alkyl chains has been achieved in one-pot synthesis by solvothermal methods. An enormous enhancement in the emission intensity, quantum yield, and lifetime of the rectangles has been observed when the solvent medium is changed from organic to aqueous. Addition of water favors the aggregation of Re(I) molecular rectangle resulting in the luminescence enhancement, and this phenomenon has been traced out using light scattering techniques.
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Affiliation(s)
- Bala Manimaran
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
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4241
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Xu K, Peng H, Sun Q, Dong Y, Salhi F, Luo J, Chen J, Huang Y, Zhang D, Xu Z, Tang BZ. Polycyclotrimerization of Diynes: Synthesis and Properties of Hyperbranched Polyphenylenes. Macromolecules 2002. [DOI: 10.1021/ma020365z] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kaitian Xu
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Han Peng
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Qunhui Sun
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yuping Dong
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Fouad Salhi
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Jingdong Luo
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Junwu Chen
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yi Huang
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Dezhen Zhang
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Zhongde Xu
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Ben Zhong Tang
- Department of Chemistry, Institute of Nano Science and Technology, Center for Display Research, and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; and Institute of Polymer Science and Engineering, East China University of Science & Technology, Shanghai 200237, China
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4242
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Chan LH, Lee RH, Hsieh CF, Yeh HC, Chen CT. Optimization of high-performance blue organic light-emitting diodes containing tetraphenylsilane molecular glass materials. J Am Chem Soc 2002; 124:6469-79. [PMID: 12033878 DOI: 10.1021/ja0255150] [Citation(s) in RCA: 184] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular glass material (4-(5-(4-(diphenylamino)phenyl)-2-oxadiazolyl)phenyl)triphenylsilane (Ph(3)Si(PhTPAOXD)) was used as the blue light-emitting material in the fabrication of high-performance organic light-emitting diodes (OLEDs). In the optimization of performance, five types of OLEDs were constructed from Ph(3)Si(PhTPAOXD): device I, ITO/NPB/Ph(3)Si(PhTPAOXD)/Alq(3)/Mg:Ag, where NPB and Alq(3) are 1,4-bis(1-naphylphenylamino)biphenyl and tris(8-hydroxyquinoline)aluminum, respectively; device II, ITO/NPB/Ph(3)Si(PhTPAOXD)/TPBI/Mg:Ag, where TPBI is 1,3,5-tris(N-phenylbenzimidazol-2-yl)benzene; device III, ITO/Ph(2)Si(Ph(NPA)(2))(2)/Ph(3)Si(PhTPAOXD)/TPBI/Mg:Ag, where Ph(2)Si(Ph(NPA)(2))(2) is bis(3,5-bis(1-naphylphenylamino)phenyl)-diphenylsilane, a newly synthesized tetraphenylsilane-containing triarylamine as hole-transporting material; device IV, ITO/Ph(2)Si(Ph(NPA)(2))(2)/NPB/Ph(3)Si(PhTPAOXD)/TPBI/Mg:Ag; device V, ITO/CuPc/NPB /Ph(3)Si(PhTPAOXD)/Alq(3)/LiF/Al, where CuPc is Cu(II) phthalocyanine. Device performances, including blue color purity, electroluminescence (EL) intensity, current density, and efficiency, vary drastically by changing the device thickness (100-600 A of the light-emitting layer) and materials for hole-transporting layer (NPB and/or Ph(2)Si(Ph(NPA)(2))(2)) or electron-transporting material (Alq(3) or TPBI). One of the superior OLEDs is device IV, showing maximum EL near 19 000 cd/m(2) with relatively low current density of 674 mA/cm(2) (or near 3000 cd/m(2) at 100 mA/cm(2)) and high external quantum efficiency of 2.4% (1.1 lm/W or 3.1 cd/A). The device possesses good blue color purity with EL emission maximum (lambda(max)(EL)) at 460 nm, corresponding to (0.16, 0.18) of blue color chromaticity on CIE coordinates. In addition, the device is reasonably stable and sustains heating over 100 degrees C with no loss of luminance on the basis of the annealing data for device V. Formation of the exciplex at the interface of NPB and Ph(3)Si(PhTPAOXD) layers is verified by EL and photoluminescence (PL) spectra studies on the devices with a combination of different charge transporting materials. The EL due to the exciplex (lambda(max)(EL) at 490-510 nm) can be properly avoided by using a 200 A layer of Ph(3)Si(PhTPAOXD) in device I, which limits the charge-recombination zone away from the interface area.
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Affiliation(s)
- Li-Hsin Chan
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan 11529, ROC
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4243
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Kim BH, Woo HG. Dehydrocoupling of 1,1-Dihydrotetraphenylsilole to an Electroluminescent Polysilole. Organometallics 2002. [DOI: 10.1021/om0200151] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bo-Hye Kim
- Department of Chemistry and Institute of Basic Sciences, Chonnam National University, Kwangju 500-757, Korea
| | - Hee-Gweon Woo
- Department of Chemistry and Institute of Basic Sciences, Chonnam National University, Kwangju 500-757, Korea
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