2018
DOI: 10.1002/anie.201804306
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Observation of a Metastable P‐Heterocyclic Radical by Muonium Addition to a 1,3‐Diphosphacyclobutane‐2,4‐diyl

Abstract: A 1,3-diphosphacyclobutane-2,4-diyl contains a unique unsaturated cyclic unit, and the presence of radical-type centers have been expected as a source of functionality. This study demonstrates that the P-heterocyclic singlet biradical captures muonium (Mu=[μ e ]), the light isotope of a hydrogen radical, to generate an observable P-heterocyclic paramagnetic species. Investigation of a powder sample of 2,4-bis(2,4,6-tri-t-butylphenyl)-1-t-butyl-3-benzyl-1,3-diphosphacyclobutane-2,4-diyl using muon (avoided) lev… Show more

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Cited by 20 publications
(34 citation statements)
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“…In the muoniation to cyclic molecules, the isotope effect could be normally characterized by elongation of the X‐Mu bond, where X is C atom or other main group elements, due to higher zero‐point vibration promoting increase of the average bond distance [14b, 17, 27–29] . However, elongation of the P‐Mu(H) bond according to our previous works [17] could not simulate the experimental muon hfc.…”
Section: Figurementioning
confidence: 92%
See 3 more Smart Citations
“…In the muoniation to cyclic molecules, the isotope effect could be normally characterized by elongation of the X‐Mu bond, where X is C atom or other main group elements, due to higher zero‐point vibration promoting increase of the average bond distance [14b, 17, 27–29] . However, elongation of the P‐Mu(H) bond according to our previous works [17] could not simulate the experimental muon hfc.…”
Section: Figurementioning
confidence: 92%
“…In the muoniation to cyclic molecules, the isotope effect could be normally characterized by elongation of the X‐Mu bond, where X is C atom or other main group elements, due to higher zero‐point vibration promoting increase of the average bond distance [14b, 17, 27–29] . However, elongation of the P‐Mu(H) bond according to our previous works [17] could not simulate the experimental muon hfc. Meanwhile, scanning the angles around the phosphorus based on the rocking and wagging motions in 1Mu was attempted, but simulating the experimental TF‐μSR and μLCR results was also unsuccessful.…”
Section: Figurementioning
confidence: 92%
See 2 more Smart Citations
“…Chemie bond according to our previous works [17] could not simulate the experimental muon hfc. Meanwhile, scanning the angles around the phosphorus based on the rocking and wagging motions in 1Mu was attempted, but simulating the experimental TF-mSR and mLCR results was also unsuccessful.…”
Section: Methodsmentioning
confidence: 99%