C-F bond activation by transient phosphenium dications

C-F bond activation by transient phosphenium dications

C–F bond cleavage by transient phosphorus(III)-based dications [RP(C(PPh3)2)]2+ (4a2+, R = Ph; 4b2+, R = 4-F-Ph) is reported. These dications were generated by reaction of the corresponding monocationic precursors with excess Na[BAr4Cl]. Evidence for the existence of transient dicationic species was...

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Bibliographic Details
Main Authors: Đorđević, Nemanja, Tay, Madelyn Qin Yi, Muthaiah, Senthilkumar, Ganguly, Rakesh, Dimić, Dušan, Vidović, Dragoslav
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2015
Subjects:
DRNTU::Science::Chemistry::Inorganic chemistry
Online Access:https://hdl.handle.net/10356/107396
http://hdl.handle.net/10220/25469
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Institution: Nanyang Technological University
Language: English
Description
Summary:C–F bond cleavage by transient phosphorus(III)-based dications [RP(C(PPh3)2)]2+ (4a2+, R = Ph; 4b2+, R = 4-F-Ph) is reported. These dications were generated by reaction of the corresponding monocationic precursors with excess Na[BAr4Cl]. Evidence for the existence of transient dicationic species was obtained by trapping the dication 4a2+ with PMe3. According to theoretical analysis, the low-lying lowest unoccupied molecular orbitals of these species were responsible for the observed activation of C–F bonds.

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