An unsymmetrical phosphonium diylide with a fluorenylidene subunit and its lithium complexes
Geitner R, Kosygin I, Görls H, Pahl J, Harder S, Westerhausen M, Langer J (2015)
Publication Status: Published
Publication Type: Journal article
Publication year: 2015
Journal
Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles / Taylor & Francis
Book Volume: 68
Pages Range: 3302-3316
Journal Issue: 17-18
DOI: 10.1080/00958972.2015.1072625
Abstract
The phosphonium ylide MePh2P(flu) (3) (flu = C13H8, fluorenylidene) was conveniently prepared by reaction of Ph2P(fluH) (1) (fluH = C13H9, fluorenyl) with iodomethane, followed by subsequent dehydrohalogenation of the resulting phosphonium salt [MePh2P(fluH)] I (2) by potassium tert-butoxide. Compound 3 was further deprotonated by n-butyllithium, yielding the corresponding lithium complex [Li{CH2PPh2(flu)}(tmeda)] (4) in presence of N,N,N',N'-tetramethylethylenediamine (tmeda). This mononuclear lithium compound contains the monoanionic chelating diylidic ligand. An exchange of the neutral bidentate tmeda by tridentate N,N,N',N'',N''-pentamethyldiethylenetriamine (pmdta) enforces a change in coordination mode. Consequently, the diylide is monodentate in [Li{CH2PPh2(flu)}(pmdta)] (5). Compounds 1-5 were characterized by NMR spectroscopy and single-crystal X-ray diffraction experiments.
Authors with CRIS profile
Jürgen Pahl
Lehrstuhl für Anorganische und Metallorganische Chemie
Sjoerd Harder
Lehrstuhl für Anorganische und Metallorganische Chemie
Involved external institutions
Germany (DE)How to cite
APA:
Geitner, R., Kosygin, I., Görls, H., Pahl, J., Harder, S., Westerhausen, M., & Langer, J. (2015). An unsymmetrical phosphonium diylide with a fluorenylidene subunit and its lithium complexes. Journal of Coordination Chemistry, 68(17-18), 3302-3316. https://dx.doi.org/10.1080/00958972.2015.1072625
MLA:
Geitner, Robert, et al. "An unsymmetrical phosphonium diylide with a fluorenylidene subunit and its lithium complexes." Journal of Coordination Chemistry 68.17-18 (2015): 3302-3316.
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