Diphosphacarborane analogues of ferrocene: The synthesis of two isomeric twelve-vertex closo-[(eta(5)-C5H5)FeP2CB8H9] complexes

0029790 - ÚACH 2006 RIV GB eng J - Článek v odborném periodiku
Bakardjiev, Mario - Holub, Josef - Carr, MJ. - Kennedy, D. J. - Štíbr, Bohumil
Diphosphacarborane analogues of ferrocene: The synthesis of two isomeric twelve-vertex closo-[(eta(5)-C5H5)FeP2CB8H9] complexes.
[Difosfakarbollidová analoga ferrocenu: Syntéza dvou izomerních dvanácti-vrcholových closo-[(eta(5)-C5H5)FeP2CB8H9] komplexů.]
Dalton Transactions. -, č. 5 (2005), s. 909-913. ISSN 1477-9226. E-ISSN 1477-9234
Grant CEP: GA ČR(CZ) GA203/05/2646
Grant ostatní: EPSRC(GB) L/49505; EPSRC(GB) R/61949
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: magnetic-resonance spectroscopy * phosphacarborane chemistry
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 3.003, rok: 2005

The reaction of the Tl+ salt of the [nido-7,8,9-P2CB8H9](-) anion (1) with [CpFe(CO)(2)I](Cp = eta(5)-C5H5) in refluxing mesitylene for 12 h gives mixed-sandwich [1-Cp-closo-1,2,3,4-FeP2CB8H9] ( 2) ( yield 63%). Reaction of the PPh4+ salt of the isomeric [nido-7,8,10-P2CB8H9](-) anion 3(-) with [CpFe(CO)(2)I] in refluxing mesitylene gives [1-Cp-closo-1,2,3,5-FeP2CB8H9] (4) (yield 56%), isomeric with 2. Compound 4 also results (yield 92%) from the sublimation of 2 under argon at ca. 350degreesC. The constitution of all compounds is established by mass spectrometry, IR spectroscopy and multinuclear NMR spectroscopy (H-1, B-11, P-31, and C-13; two-dimensional [B-11-B-11]-COSY, and H-1-{B-11(selective)), further confirmed in the case of 4 by a single-crystal X-ray diffraction analysis.

Difosfakarbollidová analoga ferrocenu: Syntéza dvou izomerních dvanácti-vrcholových closo-[(eta(5)-C5H5)FeP2CB8H9] komplexů.
Trvalý link: http://hdl.handle.net/11104/0119585