TY - JOUR
T1 - The [Os3(μ-H)(CO)10(MeCN)2]+ cation
T2 - Synthesis and X-ray crystal structure of [Os3(μ-H)(CO)10(MeCN)2][Os(CO) 3Cl3]
AU - Anson, Christopher E.
AU - Ditzel, Evert J.
AU - Fajardo, Mariano
AU - Holden, H. Diane
AU - Johnson, Brian F.G.
AU - Lewis, Jack
AU - Puga, José
AU - Raithby, Paul R.
PY - 1984/12/31
Y1 - 1984/12/31
N2 - The clusters [Os3(CO)11 (MeCN)] and [Os3(CO)10(MeCN)2] react with acids HX (X = BF4 or PF6) to form the cationic derivatives [Os3(μ-H)(CO)11(MeCN)]X and [Os3(μ-H)(CO)10(MeCN)2]X, respectively. The cluster [Os3(CO)10(MeCN)2] also reacts with dry HCl to form the salt [Os3(μ-H)-(CO)10(MeCN)2][Os(CO) 3Cl3]. X-Ray analysis of this salt shows that the Os atoms in the cation lie at the vertices of an isosceles triangle. A hydride bridges the long Os-Os edge, and the two acetonitrile ligands occupy trans axial sites. Reaction of [Os3(μ-H)(μ-OH)(CO)10] with HBF4 in MeCN also produces [Os3(μ-H)(CO)10(MeCN)2]+. In this reaction direct attack of H+ on the co-ordinated OH- ligand is considered to occur with the resultant liberation of H2O. Treatment of [Os3(μ-H)(CO)10-(MeCN)2] + with [Os(CO)4]-2 leads to the formation of the neutral complex [Os4H2(CO)14(MeCN)]. The bridging hydride of the cation may also be replaced by a bridging nitrosyl ligand by reaction with NO+.
AB - The clusters [Os3(CO)11 (MeCN)] and [Os3(CO)10(MeCN)2] react with acids HX (X = BF4 or PF6) to form the cationic derivatives [Os3(μ-H)(CO)11(MeCN)]X and [Os3(μ-H)(CO)10(MeCN)2]X, respectively. The cluster [Os3(CO)10(MeCN)2] also reacts with dry HCl to form the salt [Os3(μ-H)-(CO)10(MeCN)2][Os(CO) 3Cl3]. X-Ray analysis of this salt shows that the Os atoms in the cation lie at the vertices of an isosceles triangle. A hydride bridges the long Os-Os edge, and the two acetonitrile ligands occupy trans axial sites. Reaction of [Os3(μ-H)(μ-OH)(CO)10] with HBF4 in MeCN also produces [Os3(μ-H)(CO)10(MeCN)2]+. In this reaction direct attack of H+ on the co-ordinated OH- ligand is considered to occur with the resultant liberation of H2O. Treatment of [Os3(μ-H)(CO)10-(MeCN)2] + with [Os(CO)4]-2 leads to the formation of the neutral complex [Os4H2(CO)14(MeCN)]. The bridging hydride of the cation may also be replaced by a bridging nitrosyl ligand by reaction with NO+.
UR - http://www.scopus.com/inward/record.url?scp=37049098944&partnerID=8YFLogxK
U2 - 10.1039/DT9840002723
DO - 10.1039/DT9840002723
M3 - Article
AN - SCOPUS:37049098944
SN - 1472-7773
SP - 2723
EP - 2727
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
IS - 12
ER -