title: Silver(I) and copper(I) complexes supported by fully fluorinated 1,3,5-triazapentadienyl ligands.
abstract: Synthesis of the perfluorinated 1,3,5-triazapentadiene [N{(CF(3))C(C(6)F(5))N}(2)]H and the use of its conjugate base as a supporting ligand for the isolation of silver(i) and copper(i) complexes are reported. Some of the related chemistry involving [N{(C(3)F(7))C(C(6)F(5))N}(2)](-) (that has bulkier -C(3)F(7) groups on the 1,3,5-triazapentadienyl ligand backbone) is also presented. X-ray crystallographic data show a wide variety of structures ranging from intermolecular, hydrogen-bonded chain structure for [N{(CF(3))C(C(6)F(5))N}(2)]H with a twisted W-shaped N(3)C(2) core, monomeric [N{(CF(3))C(C(6)F(5))N}(2)]Ag(CN(t)Bu)(2) and [N{(C(3)F(7))C(C(6)F(5))N}(2)]Ag(CN(t)Bu)(2) where the κ(1)-bonded triazapentadienyl ligand bonding to the metal fragment via the central nitrogen atom, monomeric [N{(CF(3))C(C(6)F(5))N}(2)]Ag(PPh(3))(2) and [N{(C(3)F(7))C(C(6)F(5))N}(2)]Ag(PPh(3))(2) that feature κ(1)-bonded triazapentadienyl ligand bonding to the metal fragment via one of the terminal nitrogen atoms, to that of the monomeric [N{(CF(3))C(C(6)F(5))N}(2)]Cu(CN(t)Bu)(2) containing a κ(2)-bonded triazapentadienyl ligand and a U-shaped NCNCN ligand backbone. The isocyanide adducts show relatively high ν(CN) values in the IR spectra.
authors.affiliation: Department of Chemistry and Biochemistry, Box 19065, The University of Texas at Arlington, Arlington, Texas 76019-0065, USA. dias@uta.edu
authors.forename: H V Rasika
authors.initials: HV
authors.lastname: Dias
authors.forename: Jaime A
authors.initials: JA
authors.lastname: Flores
authors.forename: Maura
authors.initials: M
authors.lastname: Pellei
authors.forename: Barbara
authors.initials: B
authors.lastname: Morresi
authors.forename: Giancarlo Gioia
authors.initials: GG
authors.lastname: Lobbia
authors.forename: Shreeyukta
authors.initials: S
authors.lastname: Singh
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Muhammed
authors.initials: M
authors.lastname: Yousufuddin
authors.forename: Carlo
authors.initials: C
authors.lastname: Santini