title: C-F bond activation by transient phosphenium dications.
abstract: C-F bond cleavage by transient phosphorus(III)-based dications [RP(C(PPh3)2)](2+) (4a(2+), R = Ph; 4b(2+), R = 4-F-Ph) is reported. These dications were generated by reaction of the corresponding monocationic precursors with excess Na[BAr4(Cl)]. Evidence for the existence of transient dicationic species was obtained by trapping the dication 4a(2+) 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.
authors: †SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore.
authors: Nemanja
authors: N
authors: Đorđević
authors: †SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore.
authors: Madelyn Qin Yi
authors: MQ
authors: Tay
authors: ‡National Institute of Technology Kurukshetra, Kurukshetra, 136119 Haryana, India.
authors: Senthilkumar
authors: S
authors: Muthaiah
authors: †SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore.
authors: Rakesh
authors: R
authors: Ganguly
authors: §Faculty of Physical Chemistry, University of Belgrade, 11000 Belgrade, Republic of Serbia.
authors: Dušan
authors: D
authors: Dimić
authors: †SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore.
authors: Dragoslav
authors: D
authors: Vidović