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Boryl and Bridged Borylene Complexes of Iron and Ruthenium
Author(s) -
Braunschweig Holger,
Kollann Carsten,
Klinkhammer Karl W.
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199909)1999:9<1523::aid-ejic1523>3.0.co;2-1
Subject(s) - chemistry , ruthenium , reactivity (psychology) , metal , crystallography , transition metal , single crystal , stereochemistry , medicinal chemistry , catalysis , organic chemistry , medicine , alternative medicine , pathology
The reactivity of aminodihaloboranes R 2 NBX 2 (R = Me, SiMe 3 ; × = Cl, Br) towards transition metal complexes of the type Na[(η 5 ‐C 5 R′ 5 )M(CO) 2 )] (M = Fe, Ru; R′ = H, Me) was investigated. In the case of Me 2 NBBr 2 and M = Fe the borylcomplexes [(η 5 ‐C 5 R′ 5 )(CO) 2 Fe{BBr(NMe 2 )}] (C 5 R′ 5 = C 5 H 5 9a ; C 5 R′ 5 = C 5 H 4 Me 9b ; C 5 R′ 5 = C 5 Me 5 10 ) were obtained. The compounds 9a and 9b were formed together with the corresponding bridged borylene complexes [μ‐BNMe 2 (μ‐CO){(η 5 ‐C 5 R′ 5 )Fe(CO)} 2 ] (C 5 R′ 5 = C 5 H 5 11a ; C 5 R′ 5 = C 5 H 4 Me 11b ) in a 1:1 ratio, the latter, however, could be isolated from these mixtures as pure materials. In addition the novel boryl and borylene ruthenium complexes [(η 5 ‐C 5 H 5 )(CO) 2 Ru{BX(NMe 2 )}] (X = Cl 12a ; × = Br 12b ), [(η 5 ‐C 5 H 5 )(CO) 2 Ru{BCl{NSiMe 3 {BClN(SiMe 3 ) 2 }}}] ( 13 ) and [μ‐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 multinuclear NMR and IR spectroscopy. The structure of 13 in the solid state was determined by a single‐crystal X‐ray diffraction study.