10170-15-7

Basic information

• Product Name: OsCl₂(P(C₆H₅)3)2(CO)2
• CAS NO: 10170-15-7
• Molecular Weight: 841.709
• Mol File: 10170-15-7.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: OsCl₂(P(C₆H₅)3)2(CO)2(CAS DataBase Reference)
• NIST Chemistry Reference: OsCl₂(P(C₆H₅)3)2(CO)2(10170-15-7)
• EPA Substance Registry System: OsCl₂(P(C₆H₅)3)2(CO)2(10170-15-7)

Safety Data

• Hazardous Substances Data: 10170-15-7(Hazardous Substances Data)

Upstream product

• 56586-93-7 dichlorotris(triphenylphosphine)osmium(II) 
• 75-09-2 dichloromethane 
• 862509-70-4 Os(trimethylsilyl)(methyl)(CO)2(triphenylphosphine)2 
• 31011-34-4 [Os(HNO)(CO)Cl₂(P(C₆H₅)3)2] 
• 201230-82-2 carbon monoxide 
• 16971-31-6 hydridocarbonylchlorotris(triphenylphosphine)osmium(II) 
• 2696-92-6 nitrosylchloride 
• 36179-61-0 carbonyldihydridotris(triphenylphosphine)osmium 
• 86143-15-9 dichlorocarbonyltris(triphenylphosphine)osmium(II) 
• 25702-67-4 dicarbonylchlorohydridobis(triphenylphosphine)osmium(II) 
• 16971-31-6 OsHCl(CO)(triphenylphosphine)₃ 
• 603-35-0 triphenylphosphine 
• 10170-15-7 trans-Os(PPh₃)2Cl₂(CO)2 
• 18974-23-7 dicarbonyldihydridobis(triphenylphosphine)osmium 

Downstream Products

• 10170-15-7 OsCl₂(P(C₆H₅)3)2(CO)2 
• 89689-50-9 {Os(CO)(Cl)(1,10-phenanthroline)(PPh₃)2}PF₆ 
• 118773-99-2 {Os(CO)(Cl)(1,10-phenanthroline)(PPh₃)2}Cl 
• 84117-36-2 [Os(H)(CO)(2,2'-bipyridine)(triphenylphosphine)₂] 
• 239474-32-9 Os(η(2)-2-(2'-pyridyl)phenyl)Cl(CO)(PPh3)2 

Relevant articles and documents

Ligand substitution in the osmium carbonyl cluster Os2(CO)8(μ3-SbPh)Os(CO)3(Cl)2: Towards derivatives of the osmostibine metalloligand

Derivatisation of the osmium carbonyl cluster Os2(CO)8(μ3-SbPh)Os(CO)3(Cl)2, 1, the precursor to the metalloligand Os2(CO)8(μ-SbPh), 2, was explored as a route to derivatives of the latter. The reaction of 1 with PPh3 in different stoichiometries and under trimethylamine N-oxide activation in CH3CN led to mono-, di-, tri- and tetra-substitution by PPh3 and CH3CN. The first substitution occurred at the Os(CO)3Cl2 “spike” and although subsequent substitution favoured CH3CN at the osmostibine moiety, the latter was not readily displaced by PPh3. Substitution at the “spike” also shut down release of the substituted osmostibine. The CH3CN-substituted osmostibine could, however, be generated in situ through the bis-acetonitrile derivative of 1 by conversion of the Os(CO)2(NCCH3)Cl2 “spike” back into its removable Os(CO)3Cl2 form through reaction with CO gas, and was then trapped with W(CO)5(NCCH3).

Metallacyclic complexes with ortho-silylated triphenylphosphine ligands, LnOs(κ2(Si,P)-SiMe2C6H 4PPh2), derived from thermal reactions of the coordinatively unsaturated trimethylsilyl, methyl complex, Os(SiMe 3)(Me)(CO)(PPh3)2

Reaction between Os(SiCl3)Cl(CO)(PPh3)2 and five equivalents of MeLi produces a colourless intermediate, tentatively formulated as the lithium salt of the six-coordinate, dimethyl, trimethylsilyl-containing complex anion, Li[Os(SiMe3)(Me) 2(CO)(PPh3)2]. Reaction of this material with ethanol releases methane and gives the red, coordinatively unsaturated methyl, trimethylsilyl-containing complex, Os(SiMe3)(Me)(CO)(PPh 3)2 (1). An alternative synthesis of 1 is to add one equivalent of MeLi to Os(SiMe3)Cl(CO)(PPh3)2, which in turn is obtained by adding three equivalents of MeLi to Os(SiCl 3)Cl(CO)(PPh3)2. Treatment of 1 with p-tolyl lithium, again gives a colourless intermediate which may be Li[Os(SiMe 3)(Me)(p-tolyl)(CO)(PPh3)2], and reaction with ethanol gives the red complex, Os(SiMe3)(p-tolyl)(CO)(PPh 3)2 (3). Complexes 1 and 3 are readily carbonylated to Os(SiMe3)(Me)(CO)2(PPh3)2 (2) and Os(SiMe3)(p-tolyl)(CO)2(PPh3)2 (4), respectively. Heating Os(SiMe3)Cl(CO)(PPh3)2 in molten triphenylphosphine results only in loss of the trimethylsilyl ligand and formation of the previously known complex containing an ortho-metallated triphenylphosphine ligand, Os(κ2(C,P)-C6H 4PPh2)Cl(CO)(PPh3)2. In contrast, heating the five-coordinate osmium-methyl complex, Os(SiMe3)(Me)(CO) (PPh3)2 (1), in the presence of triphenylphosphine results mainly, not in tetramethylsilane elimination, but in ortho-silylation as well as ortho-metallation of different triphenylphosphine ligands giving, Os(κ2(Si,P)-SiMe2C6H4PPh 2)(κ2(C,P)-C6H4PPh 2)(CO)(PPh3) (5). A byproduct of this reaction is the non-silicon containing di-ortho-metallated complex, Os(κ2(C,P)- C6H4PPh2)2(CO)(PPh3) (6). A similar reaction occurs when Os(SiMe3)(Me)(CO)(PPh 3)2 (1) is heated in the presence of tri(N-pyrrolyl) phosphine producing Os(κ2(Si,P)-SiMe2C 6H4PPh2)(κ2(C,P)-C 6H4PPh2)(CO)[P(NC4H 4)3] (7) but a better synthesis of 7 is to treat 5 directly with tri(N-pyrrolyl)phosphine. Heating the six-coordinate complex, Os(SiMe3)(Me)(CO)2(PPh3)2 (2), gives two complexes both containing ortho-metallated triphenylphosphine, one with loss of the trimethylsilyl ligand, giving the known complex, Os(κ2(C,P)-C6H4PPh2)H(CO) 2(PPh3), and the other with retention of the trimethylsilyl ligand, giving Os(SiMe3)(κ2(C,P)- C6H4PPh2)(CO)2(PPh3) (8). Crystal structure determinations for 5, 6, 7 and 8 have been obtained.

Synthesis and characterisation of [OC-6-33][OsCl2(CO)2L2] (L=phosphine). Crystal structure of [OC-6-33][OsCl2(CO)2(PEt3)2]

A series of [OC-6-33][OsCl2(CO)2L2] (L=phosphine) complexes have been prepared by cleavage of [OsCl(μ-Cl)(CO)3]2 with a variety of phosphines for a comparison of spectroscopic data with those for the related [OC-6-13][OsF2(CO)2L2] (L=phosphine). The X-ray structural characterisation of [OC-6-33][OsCl2(CO)2(PEt3)2] represents the first structural characterisation for this class of complex.