Boryl and Bridged Borylene Complexes of Iron and Ruthenium

✍ Scribed by Holger Braunschweig; Carsten Kollann; Karl W. Klinkhammer

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 345 KB
• Volume: 1999
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199909)1999:9<1523::aid-ejic1523>3.0.co;2-1

✦ Synopsis

The reactivity of aminodihaloboranes R 2 NBX 2 (R = Me, be isolated from these mixtures as pure materials. In addition the novel boryl and borylene ruthenium complexes [(η 5 -SiMe 3 ; X = Cl, Br) towards transition metal complexes of the type Na[(η 5 -C 5 RЈ 5 )M(CO) 2 )] (M = Fe, Ru; RЈ = H, Me) was C 5 H 5 )(CO) 2 Ru{BX(NMe 2 )}] (X = Cl 12a; X = Br 12b), [(η 5 -C 5 H 5 )(CO) 2 Ru{BCl{NSiMe 3 {BClN(SiMe 3 ) 2 }}}] (13) and [µ-investigated. In the case of Me 2 NBBr 2 and M = Fe the borylcomplexes [(η 5 -C 5 RЈ 5 )(CO) 2 Fe{BBr(NMe 2 )}] (C 5 RЈ 5 = BN(SiMe 3 ) 2 (µ-CO){(η 5 -C 5 H 5 )Ru(CO)} 2 ] (14) were obtained by similar methods. All compounds were characterized by C 5 H 5 9a; C 5 RЈ 5 = C 5 H 4 Me 9b; C 5 RЈ 5 = C 5 Me 5 10) were obtained. The compounds 9a and 9b were formed together multinuclear NMR and IR spectroscopy. The structure of 13 in the solid state was determined by a single-crystal X-ray with the corresponding bridged borylene complexes [µ-BNMe 2 (µ-CO){(η 5 -C 5 RЈ 5 )Fe(CO)} 2 ] (C 5 RЈ 5 = C 5 H 5 11a; diffraction study. C 5 RЈ 5 = C 5 H 4 Me 11b) in a 1:1 ratio, the latter, however, could C 5 RЈ 5 )Fe(CO)} 2 ] (C 5 RЈ 5 ϭ C 5 H 5 3a; C 5 RЈ 5 ϭ C 5 H 4 Me 3b)