1997
DOI: 10.1006/mchj.1996.1417
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The Selective Monohalogenation of Dihydro- and Trihydrosilanes

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Cited by 7 publications
(4 citation statements)
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“…NBS was required because direct attachment of bromothiophenes to H–Si(111) by use of (4-bromothienyl)lithium at room temperature and above led to formation of multilayers, and no reaction occurred at −77 °C. NBS has been used as a halogenating agent for H–Si(111), ,, but treatment of thiophene-functionalized surfaces with recrystallized NBS under rigorously anhydrous conditions, in conjunction with exclusion of light and control of time and temperature (<25 °C), limited the formation of Br–Si surface species to θ Br–Si < 0.05. Specifically, after 20 min of reaction time with NBS, θ Br‑SC 4 H 2 did not increase, but θ C–Si decreased and θ Br–Si increased, indicating the onset of side reactions.…”
Section: Discussionmentioning
confidence: 99%
“…NBS was required because direct attachment of bromothiophenes to H–Si(111) by use of (4-bromothienyl)lithium at room temperature and above led to formation of multilayers, and no reaction occurred at −77 °C. NBS has been used as a halogenating agent for H–Si(111), ,, but treatment of thiophene-functionalized surfaces with recrystallized NBS under rigorously anhydrous conditions, in conjunction with exclusion of light and control of time and temperature (<25 °C), limited the formation of Br–Si surface species to θ Br–Si < 0.05. Specifically, after 20 min of reaction time with NBS, θ Br‑SC 4 H 2 did not increase, but θ C–Si decreased and θ Br–Si increased, indicating the onset of side reactions.…”
Section: Discussionmentioning
confidence: 99%
“…The reagents H 2 SiEt 2 , D 2 SiPh 2 , and dppe (Sigma-Aldrich), H 2 SiMePh and H 2 SiPh 2 (Wako Pure Chemical), and dmpe (Strem) are commercially available products. The compounds [Pt(PCy 3 ) 2 ], H 2 SiHex 2 , and [PtH 2 (PCy 3 ) 2 ] were prepared according to the reported procedure. IR absorption spectra were recorded on a Shimadzu FT/IR-8100 spectrometer.…”
Section: Methodsmentioning
confidence: 99%
“…While NBS has been used to functionalize Si wafers and silane molecules, 33,34,37,38 the bromination of H-SiQDs has not been reported to our knowledge. As Si-X bonds are very reactive and difficult to directly characterize and isolate, the success of halogenation is typically conrmed by analyzing the derivatives aer functionalization.…”
Section: Bromination and Functionalization Of H-siqdsmentioning
confidence: 97%
“…NBS is a common bromination reagent used in organic synthesis and can be handled in air without a problem. 34,37,38…”
Section: Introductionmentioning
confidence: 99%