A theoretical approach of alkyne linked reactive Intermediates: (nitrenoethynyl)alkyl silylenes
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CBGCONF04_102
تاریخ نمایه سازی: 22 دی 1396
Abstract:
Experimentally unreachable reactive intermediates of (nitrenoethynyl)-X-silylenes, were compared and contrasted at B3LYP, HF, MP2, MP4, CCSD, and QCISD(T) levels with 6-311++G(d,p) basis set (X– Si–C≡C–N; X = H (1), Me (2), Et (3), Pr (4), i-Pr (5), and t-Bu (6)). The effect of small and bulky groups on these acetylene linked reactive intermediates were studied. All singlet (nitrenoethynyl)-X-silylene species were identified as ground states with one local closed-shell singlet germylene subunit (δ2π0) and one local closed-shell singlet nitrene subunit (π2π0) were coupled through acetylene linkage. Also, one local closed-shell singlet silylene subunit (δ2π0) and one local triplet nitrene subunit (π1π1) were connected to make triplet (nitrenoethynyl)silylenes. Quintet states were found as the most unstable species with one local triplet divalency subunit (π1π1) and also other local triplet nitrene subunit (π1π1). The species of (nitrenoethynyl)silylenes, could be applied as dipolar intermediates in mechanism identification ofchemical reactions.
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Authors
Somayeh Soleimani-Amiri
Department of Chemistry, Karaj branch, Islamic Azad University, Karaj, Iran
Nasim Asadbeigi
Department of Chemistry, Karaj branch, Islamic Azad University, Karaj, Iran
Sahar Badragheh
Young researchers and elite club, Karaj branch, Islamic Azad University, Karaj, Iran