2015
DOI: 10.1002/ange.201502054
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Cyclische Gruppe‐15‐Radikalkationen

Abstract: Biradikaloide Cyclo-1,3-dipnikta-2,4-diazan-1,3diyle des Typs [E(m-NTer) 2 E] (2,E=P, As,T er = 2,6-Dimesitylphenyl) wurden mit Silbersalzen schwachkoordinierender Anionen wie [AgL n ][B(C 6 F 5 ) 4 ]( L = Donormolekül) monooxidiert, um neue cyclische Radikalmonokationen,[ E(m-NTer) 2 E] +· (3 + C), zu erzeugen. Wenn kleinere und basischere Anionen im Silbersalz vorhanden sind, werden die Anionen kovalent an den Radikalzentren gebunden, und die Reaktion führt zu Dipniktadiazanen, [FP(m-NTer) 2 PF] (5)u nd [(CF… Show more

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Cited by 30 publications
(4 citation statements)
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“…Dewar stated that ''Biradicals are very polarizable species'' as illustrated in Scheme 1. 3 To date, several examples of stable cyclic singlet biradicaloids have been known, which recently were parts of excellent reviews by F. Breher, M. Abe, and Rivard et al [4][5][6] The chemistry of singlet biradicaloids is rich and was investigated mainly in the examples of [ClC(m-PMes*)] 2 (Mes* = 2,4,6-tri(tertbutyl)phenyl) by the groups of Niecke [7][8][9][10] and Yoshifuji [11][12][13] and [ i Pr 2 P(m-B t Bu)] 2 by Bertrand et al [14][15][16] More recently, the activation of small molecules [17][18][19][20][21] and the one-electron oxidation 22 23 and several other small molecules like alkynes, alkenes, diazenes, azides, diazomethanes, isonitriles, nitriles, or nitrosotoluene. [24][25][26][27] It is noteworthy to mention that in a recent computational study by Streubel and Frontera et al, 28 several isomers of complexes of P 2 N 2 singlet biradicaloids were investigated, based on complexes which were experimentally obtained 29 by the group of Paine in the early 1980s as a result of the first attempt of the reduction of dichlorodiphosphadiazanes [ClP(m-NR)] 2 (R = e.g.…”
mentioning
confidence: 99%
“…Dewar stated that ''Biradicals are very polarizable species'' as illustrated in Scheme 1. 3 To date, several examples of stable cyclic singlet biradicaloids have been known, which recently were parts of excellent reviews by F. Breher, M. Abe, and Rivard et al [4][5][6] The chemistry of singlet biradicaloids is rich and was investigated mainly in the examples of [ClC(m-PMes*)] 2 (Mes* = 2,4,6-tri(tertbutyl)phenyl) by the groups of Niecke [7][8][9][10] and Yoshifuji [11][12][13] and [ i Pr 2 P(m-B t Bu)] 2 by Bertrand et al [14][15][16] More recently, the activation of small molecules [17][18][19][20][21] and the one-electron oxidation 22 23 and several other small molecules like alkynes, alkenes, diazenes, azides, diazomethanes, isonitriles, nitriles, or nitrosotoluene. [24][25][26][27] It is noteworthy to mention that in a recent computational study by Streubel and Frontera et al, 28 several isomers of complexes of P 2 N 2 singlet biradicaloids were investigated, based on complexes which were experimentally obtained 29 by the group of Paine in the early 1980s as a result of the first attempt of the reduction of dichlorodiphosphadiazanes [ClP(m-NR)] 2 (R = e.g.…”
mentioning
confidence: 99%
“…Finally, we tried to oxidize 3Dmp (species 1 +• in Scheme 6). 40 Synthesis of a Tetraradicaloid by Catenation of Two Cyclopentane-1,3-diyls. In a last series of experiments, we attempted the catenation of cyclopentane-1,3-diyls by employing a bifunctional isonitrile in the reaction with [P(μ-NTer)] 2 (1).…”
Section: ■ Resultsmentioning
confidence: 99%
“…However, the synthesis of 2Sb and 2Bi filled a gap in main group chemistry in the heavy group 15 allylanalogues and enabled the synthesis of the first dichloro-cyclobisma-stiba-diazane, which may prove a suitable starting material for the generation of reactive cations, radicals or Sb/Bi nitrides. 43 DFG (SCHU 1170/11-1) is gratefully acknowledged for financial support. The authors thank M. Sc.…”
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confidence: 99%