title: Diferratricarbaboranes of the subcloso-[(eta5-C5H5)2Fe2C3B8H11] type, the first representatives of the 13-vertex dimetallatricarbaborane series.
abstract: Treatment of the [2-Cp-9-tBuNH-closo-2,1,7,9-FeC(3)B(8)H(10)] (1) ferratricarbollide (Cp = eta(5)-C(5)H(5) (-)) with Na(+) C(10)H(8) (-) in 1,2-dimethoxyethane (DME) at room temperature produced an air-sensitive transient anion with a tentatively identified nido-[tBuNH-CpFeC(3)B(8)H(10)](2-) constitution. In-situ reaction of this low-stability ion with [CpFe(CO)(2)I] or [CpFe(CO)(2)](2) generated three violet diferratricarbaboranes identified as paramagnetic subcloso complexes [4,5-Cp(2-)-4,5,1,6,7-Fe(2)C(3)B(8)H(11)] (2; yield 2 %), [4,5-Cp(2-)-4,5,1,7,12-Fe(2)C(3)B(8)H(11)] (3; yield 2 %), and [7-tBuNH-4,5-Cp(2-)-4,5,1,7,12-Fe(2)C(3)B(8)H(10)] (4; yield 14 %). These first representatives of the 13-vertex dimetallatricarbaborane family were characterized by EPR and IR spectroscopy, and mass spectrometry, and their structures were determined by X-ray diffraction analysis.
authors.affiliation: Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, (Research Center for New Inorganic Compounds and Advanced Materials, University of Pardubice), 250 68 Rez (The Czech Republic).
authors.forename: Bohumír
authors.initials: B
authors.lastname: Grüner
authors.forename: Bohumil
authors.initials: B
authors.lastname: Stíbr
authors.forename: Raikko
authors.initials: R
authors.lastname: Kivekäs
authors.forename: Reijo
authors.initials: R
authors.lastname: Sillanpää
authors.forename: Pavel
authors.initials: P
authors.lastname: Stopka
authors.forename: Francesc
authors.initials: F
authors.lastname: Teixidor
authors.forename: Clara
authors.initials: C
authors.lastname: Viñas