Crystalline phosphino-functionalized mesoionic olefins (p-MIOs)

Merschel A, Vishnevskiy Y, Neumann B, Stammler H-G, Ghadwal R (2022)
Dalton Transactions 21.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Phosphino-functionalized mesoionic olefins (p-MIOs), (iMIC)CHR (iMIC = PhC{N(Dipp)}2C(PPh2)C, Dipp = 2,6-iPr2C6H3; R = H 4a or Ph 4b), derived from a 1,3-imidazole-based mesoionic carbene (iMIC) are reported. The p-MIOs 4a (blue) and 4b (green) are crystalline solids and have been characterized by NMR spectroscopy and X-ray diffraction as well as DFT calculations. The calculated proton affinities of 4a (291.3 kcal mol−1) and 4b (288.1 kcal mol−1) support their remarkable basicity that exceeds that of classical NHCs. Treatment of 4a with (Me2S)AuCl (and AgOTf) affords the dinuclear gold compounds [(4a)Au](X)2(5-X) (X = Cl or OTf) with a short Au⋯Au distance of 3.130(2) Å for 5-Cl. The reaction of 4a with the main-group reagent PhBCl2yields the boronium cation [(4a)BPhCl]Cl (6).
Erscheinungsjahr
2022
Zeitschriftentitel
Dalton Transactions
Band
21
ISSN
1477-9226
eISSN
1477-9234
Page URI
https://pub.uni-bielefeld.de/record/2963053

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Merschel A, Vishnevskiy Y, Neumann B, Stammler H-G, Ghadwal R. Crystalline phosphino-functionalized mesoionic olefins (p-MIOs). Dalton Transactions. 2022;21.
Merschel, A., Vishnevskiy, Y., Neumann, B., Stammler, H. - G., & Ghadwal, R. (2022). Crystalline phosphino-functionalized mesoionic olefins (p-MIOs). Dalton Transactions, 21. https://doi.org/10.1039/D2DT01314B
Merschel, A., Vishnevskiy, Y., Neumann, B., Stammler, H. - G., and Ghadwal, R. (2022). Crystalline phosphino-functionalized mesoionic olefins (p-MIOs). Dalton Transactions 21.
Merschel, A., et al., 2022. Crystalline phosphino-functionalized mesoionic olefins (p-MIOs). Dalton Transactions, 21.
A. Merschel, et al., “Crystalline phosphino-functionalized mesoionic olefins (p-MIOs)”, Dalton Transactions, vol. 21, 2022.
Merschel, A., Vishnevskiy, Y., Neumann, B., Stammler, H.-G., Ghadwal, R.: Crystalline phosphino-functionalized mesoionic olefins (p-MIOs). Dalton Transactions. 21, (2022).
Merschel, Arne, Vishnevskiy, Yury, Neumann, Beate, Stammler, Hans-Georg, and Ghadwal, Rajendra. “Crystalline phosphino-functionalized mesoionic olefins (p-MIOs)”. Dalton Transactions 21 (2022).

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