title: Isolation of a Lewis base stabilized parent phosphenium (PH2(+)) and related species.
abstract: The parent phosphenium ion (PH2(+)), and even any phosphenium salts bearing a hydrogen (HRP(+)), have never been observed. The addition of trifluoromethanesulfonic acid and carbon electrophiles to an NHC-PH adduct, featuring a very bulky NHC, allows for the preparation and isolation of such compounds. Computational investigations show that most of the positive charge is localized at phosphorus, demonstrating the phosphenium nature of this compound. Further, the PH moiety is able to utilize one or both of its lone pairs to bind to one or two metals.
authors.affiliation: UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA. guybertrand@ucsd.edu and Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, Fujian, China.
authors.forename: Liu Leo
authors.initials: LL
authors.lastname: Liu
authors.affiliation: UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA. guybertrand@ucsd.edu.
authors.forename: David A
authors.initials: DA
authors.lastname: Ruiz
authors.affiliation: UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA. guybertrand@ucsd.edu.
authors.forename: Fatme
authors.initials: F
authors.lastname: Dahcheh
authors.affiliation: UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA. guybertrand@ucsd.edu.
authors.forename: Guy
authors.initials: G
authors.lastname: Bertrand
mesh_terms: D004355:Drug Stability; D004583:Electrons; D058115:Lewis Bases / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D009943:Organophosphorus Compounds / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D058115:Lewis Bases; D009943:Organophosphorus Compounds