Preparation and reactivity of arylcyclopolysilanes

Lemanski, M. F.; Schram, E. P.

doi:10.1021/ic50164a039

Cited by 7 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The melting point of 299 °C [63] and the UV‐Vis spectra [64] (see Table 1) are in good agreement with literature. The IR‐ and Raman spectra show the typical bands for phenylated silanes [66,67] …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Linear Phenylsilanes with PSi₄P, PSi₅P, and Si₇ Backbones

2022

View full text Add to dashboard Cite

Linear α,ω‐diphosphaoligosilanes were prepared starting from 1,5‐dilithiodecaphenyl‐n‐pentasilane, Li(SiPh2)5Li, and chlorodiorganophosphanes. The compounds 1,5‐bis(diphenylphosphanyl)decaphenyl‐n‐pentasilane, (Ph2P)Si5Ph10(PPh2), 1,5‐bis(di‐iso‐propylphosphanyl)decaphenyl‐n‐pentasilane, (iPr2P)Si5Ph10(PiPr2), and 1,4‐bis(di‐iso‐propylphosphanyl)octaphenyl‐n‐tetrasilane, (iPr2P)Si4Ph8(PiPr2), were obtained in moderate to good yields and characterized with IR‐, Raman‐, UV‐, 31P‐, 29Si‐, and 1H‐NMR spectroscopy. Single crystal structure analyses of these three silanes show all‐transoid conformations of the atoms along the phosphorus‐silicon backbone of the molecules in the solid state. The silicon‐silicon and the silicon‐phosphorus‐bonds are elongated. This is caused by the complete substitution of these molecules by sterically demanding phenyl‐ and i‐propyl‐substituents and effective σ‐conjugation along the main chains. Hexadecaphenyl‐n‐heptasilane, Si7Ph16, was prepared for comparison with the other three compounds. The latter one shows a long wavelength UV‐absorption in the same region as 1,5‐bis(diphenylphosphanyl)decaphenyl‐n‐pentasilane.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The IR-and Raman spectra show the typical bands for phenylated silanes. [66,67] 1 was also reacted with chlorodiphenylphosphane to produce 1,5-bis(diphenylphosphanyl)decaphenyl-n-pentasilane (3) (eq. 3).…”

Section: Synthesis and Spectroscopic Datamentioning

confidence: 99%