Silicon meets cyclotron: muon spin resonance of organosilicon radicals.

Muons, generated at a high-powered cyclotron, can capture electrons to form muonium atoms. Muon spin resonance spectra can be recorded for organosilyl radicals obtained by addition of muonium atoms to silylenes and silenes. We present a brief summary of progress in this new area since the first such experiments were reported in 2008.

[1]  I. McKenzie.  The positive muon and μSR spectroscopy: powerful tools for investigating the structure and dynamics of free radicals and spin probes in complex systems , 2013 .

[2]  D. Stalke,et al.  Facile Access to the Functionalized N-Donor Stabilized Silylenes PhC(NtBu)2SiX (X = PPh2, NPh2, NCy2, NiPr2, NMe2, N(SiMe3)2, OtBu) , 2012 .

[3]  R. West,et al.  Dual Reactivity of a Stable Zwitterionic N-Heterocyclic Silylene and Its Carbene Complex Probed with Muonium , 2012 .

[4]  R. West,et al.  Free radical reactivity of mono- and dichlorosilylene with muonium. , 2011, Chemistry.

[5]  R. West,et al.  Organosilicon compounds meet subatomic physics: Muon spin resonance. , 2010, Dalton transactions.

[6]  R. West,et al.  A silyl radical formed by muonium addition to a silylene. , 2010, Angewandte Chemie.

[7]  M. Driess,et al.  Synthesis and rearrangement of stable NHC-->silylene adducts and their unique reactivity towards cyclohexylisocyanide. , 2010, Chemistry, an Asian journal.

[8]  D. Stalke,et al.  Lewis base stabilized dichlorosilylene. , 2009, Angewandte Chemie.

[9]  R. West,et al.  Detection of a secondary muoniated radical , 2009 .

[10]  R. West,et al.  Probing the reactivity of a stable silene using muonium. , 2008, Angewandte Chemie.

[11]  M. Brym,et al.  A new type of N-heterocyclic silylene with ambivalent reactivity. , 2006, Journal of the American Chemical Society.

[12]  H. Roesky,et al.  Synthesis and characterization of [PhC(NtBu)2]SiCl: a stable monomeric chlorosilylene. , 2006, Angewandte Chemie.

[13]  S. Blundell.  Muon-spin rotation studies of electronic properties of molecular conductors and superconductors. , 2004, Chemical reviews.

[14]  I. McKenzie,et al.  The reactions of imidazol-2-ylidenes with the hydrogen atom: a theoretical study and experimental confirmation with muonium. , 2003, Journal of the American Chemical Society.

[15]  C. Rhodes.  Muonium—the second radioisotope of hydrogen—and its contribution to free radical chemistry , 2002 .

[16]  T. Iwamoto,et al.  The First Isolable Dialkylsilylene , 1999 .

[17]  E. Roduner.  The positive muon as a probe in free radical chemistry : potential and limitations of the [mu] SR techniques , 1988 .

[18]  G. Gutekunst,et al.  A solid silaethene: isolation and characterization , 1981 .