title: Peculiarities of the complexation of copper and silver adducts of a 3,5-bis(trifluoromethyl)pyrazolate ligand with organoiron compounds.
abstract: Interaction of the copper, {[3,5-(CF(3))(2)Pz]Cu}(3), and silver, {[3,5-(CF(3))(2)Pz]Ag}(3), macrocycles [3,5-(CF(3))(2)Pz = 3,5-bis(trifluoromethyl)pyrazolate] with cyclooctatetraeneiron tricarbonyl, (cot)Fe(CO)(3), was investigated by IR and NMR spectroscopy for the first time. The formation of 1:1 complexes was observed at low temperatures in hexane. The composition of the complexes (1:1) and their thermodynamic characteristics in hexane and dichloromethane were determined. The π-electron system of (cot)Fe(CO)(3) was proven to be the sole site of coordination in solution and in the solid state. However, according to the single-crystal X-ray data, the complex has a different (2:1) composition featuring the sandwich structure. The complexes of ferrocene with copper and silver macrocycles have a columnar structure (X-ray data).
authors.affiliation: A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow, Russia.
authors.forename: Victoria N
authors.initials: VN
authors.lastname: Tsupreva
authors.forename: Alexey A
authors.initials: AA
authors.lastname: Titov
authors.forename: Oleg A
authors.initials: OA
authors.lastname: Filippov
authors.forename: Alexey N
authors.initials: AN
authors.lastname: Bilyachenko
authors.forename: Alexander F
authors.initials: AF
authors.lastname: Smol'yakov
authors.forename: Fedor M
authors.initials: FM
authors.lastname: Dolgushin
authors.forename: Denis V
authors.initials: DV
authors.lastname: Agapkin
authors.forename: Ivan A
authors.initials: IA
authors.lastname: Godovikov
authors.forename: Lina M
authors.initials: LM
authors.lastname: Epstein
authors.forename: Elena S
authors.initials: ES
authors.lastname: Shubina
mesh_terms: D003300:Copper / Q000737:chemistry*; D005296:Ferrous Compounds / Q000737:chemistry*; D054354:Iron Carbonyl Compounds / Q000737:chemistry*; D008024:Ligands; D000075163:Metallocenes; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011720:Pyrazoles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
chemical_list: C573421:3,5-bis(trifluoromethyl)pyrazolate; D005296:Ferrous Compounds; D008024:Ligands; D000075163:Metallocenes; D009942:Organometallic Compounds; D011720:Pyrazoles; D054354:Iron Carbonyl Compounds; D012834:Silver; D003300:Copper; C004998:ferrocene