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Jiang Q, Gittens AF, Wong S, Siegler MA, Klausen RS. Highly selective addition of cyclosilanes to alkynes enabling new conjugated materials. Chem Sci 2022; 13:7587-7593. [PMID: 35872824 PMCID: PMC9241958 DOI: 10.1039/d2sc01690g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/03/2022] [Indexed: 11/21/2022] Open
Abstract
Hybrid σ,π-conjugated cyclosilanes were synthesized via highly selective hydrosilylation and have shown great potentials as building blocks to construct novel conjugated polymers with control of tacticity.
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Affiliation(s)
- Qifeng Jiang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA
| | - Alexandra F. Gittens
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA
| | - Sydnee Wong
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA
| | - Maxime A. Siegler
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA
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2
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Deriabin KV, Dobrynin MV, Islamova RM. A metal-free radical technique for cross-linking of polymethylhydrosiloxane or polymethylvinylsiloxane using AIBN. Dalton Trans 2020; 49:8855-8858. [PMID: 32589173 DOI: 10.1039/d0dt01061h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method was developed for the metal-free cross-linking of silicone rubbers. This process uses azobisisobutyronitrile (AIBN) to selectively react with Si-H and vinyl groups as a free-radical initiator for the thermal curing of polymethylhydrosiloxane (PMHS) and polymethylvinylsiloxane (PMVS). The AIBN-initiated curing reaction between the Si-H groups of PMHS generated Si-O-Si and Si-Si cross-links. In contrast, PMVS was cured via the formation of C-C bonds through "methyl-vinyl" and "vinyl-vinyl" mechanisms. Curing reactions were performed at 80-120 °C in air and confirmed by 13C and 29Si solid state NMR analyses and swelling trials.
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Affiliation(s)
- Konstantin V Deriabin
- Saint Petersburg State University, 7/9, Universitetskaya nab., Saint Petersburg, 199034, Russia.
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3
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Lee PTK, Rosenberg L. Borane-catalysed postpolymerisation modification of the Si–H bonds in poly(phenylsilane). Dalton Trans 2017; 46:8818-8826. [DOI: 10.1039/c7dt00546f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unusually wide variety of new sidechains are introduced at a polysilane through chemoselective catalytic hydrosilation, heterodehydrocoupling, and demethanative coupling.
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Affiliation(s)
- P. T. K. Lee
- Department of Chemistry
- University of Victoria
- Victoria
- Canada V8W 2Y2
| | - L. Rosenberg
- Department of Chemistry
- University of Victoria
- Victoria
- Canada V8W 2Y2
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4
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Ghavidast A, Mahmoodi NO, Zanjanchi MA. Synthesis and photochromic properties of a novel thiol-terminated 1,3-diazabicyclo[3.1.0]hex-3-ene on silver nanoparticles. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.05.054] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Ma C, Li J, Peng J, Bai Y, Zhang G, Xiao W, Lai G. Effect of carboxyl-functionalized imidazolium salts on the rhodium-catalyzed hydrosilylation of alkene. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Lee PTK, Skjel MK, Rosenberg L. Borane-Catalyzed Si–H Activation Routes to Polysilanes Containing Thiolato Side Chains. Organometallics 2013. [DOI: 10.1021/om301246z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peter T. K. Lee
- Department of Chemistry, University of Victoria, P.O. Box 3065,
Victoria, British Columbia, Canada V8W 3V6
| | - Miranda K. Skjel
- Department of Chemistry, University of Victoria, P.O. Box 3065,
Victoria, British Columbia, Canada V8W 3V6
| | - Lisa Rosenberg
- Department of Chemistry, University of Victoria, P.O. Box 3065,
Victoria, British Columbia, Canada V8W 3V6
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7
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Linear, branched and network polysilanes with thienyl/furyl substituted sila-alkyl side chains and their applications for the synthesis of fluorescent silver nanoparticles/clusters. J CHEM SCI 2013. [DOI: 10.1007/s12039-012-0322-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Chen L, Andersson TE, Rissing C, Yang S, Chen S, Son DY. Irradiation- and thermoinduced synthesis of Ag nanoparticles within amphiphilic carbosilane-thioether dendrimers. J Mater Chem B 2013; 1:116-122. [DOI: 10.1039/c2tb00279e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Shankar R, Sahoo U. Scope of network polysilanes in the synthesis of fluorescent silver and gold nanoparticles/nanoclusters-modulations of their optical properties in the presence of Hg(II) ions. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.25876] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Shankar R, Sahoo U, Shahi V. Synthesis and Characterization of Fluorescent Polymer−Metal Nanocomposites Comprising Poly(silylene-co-silyne)s and Silver Nanoparticles. Macromolecules 2011. [DOI: 10.1021/ma200038x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ravi Shankar
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Usharani Sahoo
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Vandana Shahi
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
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11
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Tripathy SK, Yu YT. Spectroscopic investigation of S-Ag interaction in omega-mercaptoundecanoic acid capped silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:841-844. [PMID: 19167270 DOI: 10.1016/j.saa.2008.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 11/30/2008] [Accepted: 12/08/2008] [Indexed: 05/27/2023]
Abstract
This paper deals with the synthesis of omega-mercaptoundecanoic acid (MUA) capped silver nanoparticles (NPs) with an average size of 15nm by citrate reduction technique and spectroscopic investigation of S-Ag interaction. We have studied the interaction of thiol with silver NPs in aqueous medium by employing UV-vis, Raman, FT-IR, and photoluminescence spectroscopy. The shifting of silver surface plasmon band in the UV-vis spectra shows the stabilization of the silver nanoparticles by MUA. The disappearance of S-H stretching in both the FT-IR and Raman spectra and the shifting of the NMR signals of the protons in close proximity to the metal center supported the existence of the S-Ag interaction in MUA capped silver NPs. The morphology of the thiol protected silver NPs was investigated by transmission electron microscopy (TEM) and was found to be distinct and spherical entities.
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12
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Catalytic dehydrocoupling of thienyl/furyl-substituted carbosilanes – Synthesis and characterization of functional poly(hydrosilane)s [RMe2Si(CH2)xSiH]n, (R=2-Th, 4-Me-2-Th, 2-Fu, 5-Me-2-Fu; x=2 and 3). J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.12.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Tamai T, Watanabe M, Hatanaka Y, Tsujiwaki H, Nishioka N, Matsukawa K. Formation of metal nanoparticles on the surface of polymer particles incorporating polysilane by UV irradiation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:14203-14208. [PMID: 19360965 DOI: 10.1021/la801809u] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Polystyrene particles incorporating poly(methylphenylsilane) (PMPS) were synthesized by miniemulsion polymerization. UV irradiation of the emulsion under air in the presence of metal salts such as HAuCl4.4H2O, AgNO3, and Na2PdCl4 led to the formation of metal nanoparticles on the surface of polymer particles; thus, metal nanoparticle/polymer hybrid particles were obtained. The structures of the hybrid particles were confirmed by the surface plasmon resonance band and transmission electron microscopy images. The formation of metal nanoparticles depended on the functional groups and charge on the surface of the polymer particle. The metal nanoparticles were formed due to the reduction of metal ions, accompanied by the oxidation of PMPS. The interaction between the surface of the polymer particle and the metal ions plays an important role in the formation of the metal nanoparticle.
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Affiliation(s)
- Toshiyuki Tamai
- Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan.
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14
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Shankar R, Shahi V. Synthesis and characterization of functional polysilanes [RMe
2
Si(CH
2
)
x
(Me)Si]
n
(R = 2‐Fu, 5‐Me‐2‐Fu, 2‐Th, 4‐Me‐2‐Th;
x
= 2, 3) with appended furyl/thienyl groups on the carbosilyl side chains and their application in the generation and stabilization of palladium nanoparticles. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23084] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ravi Shankar
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Vandana Shahi
- Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
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15
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Harrison DJ, Edwards DR, McDonald R, Rosenberg L. Toward selective functionalisation of oligosilanes: borane-catalysed dehydrogenative coupling of silanes with thiols. Dalton Trans 2008:3401-11. [DOI: 10.1039/b806270f] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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