Tri-n-butyltin Fluoride. A Novel Coordination Polymer in Solution

Dunn, Peter J.; Oldfield, D.

doi:10.1080/00222337008061010

Cited by 21 publications

(7 citation statements)

References 5 publications

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“…No observation of 5 in the fluoride-mediated reaction of 1a with CuTC should imply that the tin moiety ended up being converted into Bu3SnF. 21 Besides, immediate formation of an insoluble solid (Bu3SnF) 22 in the reaction of 5 with KF/18crown-6 strongly supports that the tin fluoride acts as an actual tin electrophile 23 in the catalytic cycle (Fig. 7B).…”

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confidence: 92%

Copper-catalyzed arylstannylation of arynes in a sequence

et al. 2019

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confidence: 92%

Copper-catalyzed arylstannylation of arynes in a sequence

et al. 2019

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“…It was also found that the photoluminescence of 7a was totally quenched in the presence of an over four‐fold excess of TBAF (Figure S10, Supporting Information). The bond formation between the tin atom and fluoride would presumably take place at the initial stage, as were described in some transition metal‐catalyzed cross‐coupling reactions using tetraaryltins and fluoride, although the attempts to characterize fluoride complexes of the model compound ( 4a ) or 7a was unsuccessful probably due to the insufficient stability and/or the formation of a polymeric structure . These changes in the optical properties would provide a chance for chemosensor applications of the stannole‐containing π‐conjugated polymers.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Stannole‐Containing π‐Conjugated Polymers by Post‐Element Transformation of Organotitanium Polymer

Matsumura

Sugihara

Tan

et al. 2019

Macromol. Rapid Commun.

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The synthesis of stannole‐2,5‐diyl‐containing π‐conjugated polymers by the post‐element transformation of a regioregular organotitanium polymer is described. For example, a 1,1‐diphenylstannole‐containing polymer is obtained in 83% yield by the reaction of a regioregular organotitanium polymer, which is prepared from 1,4‐bis(2‐ethylhexyloxy)‐2,5‐diethynylbenzene and a low‐valent titanium complex with diphenyltin dichloride at −50 °C to ambient temperature. The number‐average molecular weight and molecular weight distribution (Mn and Mw/Mn) of the stannole‐containing polymer are estimated as 4800 and 1.8, respectively. The obtained polymer is found to have the extended π‐conjugated backbone and relatively low‐lying lowest unoccupied molecular orbital (LUMO) energy level (−3.12 eV), which is supported by its UV–vis absorption spectrum and cyclic voltammetric (CV) analysis. In addition, the stannole‐containing polymer is found to be applicable to a chemosensor for fluoride anion where the color and photoluminescence intensity of the polymer solution exhibits a distinct change in the presence of a fluoride anion.

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“…Fluoropolymers have been widely researched in the eld of CO 2 thickeners because of their increased ability to solubilize. [37][38][39] However, environmental pollution is the biggest obstacle to applying this compound. 40 In contrast, siloxane polymer is advantageous because it is inexpensive and environmentally friendly, and it subsequently has attracted the interest of researchers around the world.…”

Section: Environmental Assessmentmentioning

confidence: 99%

“…14 Currently, uoropolymers have been recognized and deployed as good alternatives due to their enhanced solubility in CO 2 , and they have been applied in a wide range of CO 2 fracturing projects in various oilelds. [37][38][39][40][41] Despite their enhanced solubility, the application of uoropolymers is limited because they tend to pollute the groundwater during the oileld development process and they are very expensive when deployed as a thickener. Because of this, much research has been carried out to improve the performance of siloxane polymer with the assistance of a cosolvent.…”

Section: Introductionmentioning

confidence: 99%