135799-07-4

Basic information

• Product Name: Os(NC₆H₃(CH(CH₃)2)2)2(CH₂C(CH₃)3)2
• CAS NO: 135799-07-4
• Molecular Weight: 683.032
• Mol File: 135799-07-4.mol

Chemical Properties

• CAS DataBase Reference: Os(NC₆H₃(CH(CH₃)2)2)2(CH₂C(CH₃)3)2(CAS DataBase Reference)
• NIST Chemistry Reference: Os(NC₆H₃(CH(CH₃)2)2)2(CH₂C(CH₃)3)2(135799-07-4)
• EPA Substance Registry System: Os(NC₆H₃(CH(CH₃)2)2)2(CH₂C(CH₃)3)2(135799-07-4)

Safety Data

• Hazardous Substances Data: 135799-07-4(Hazardous Substances Data)

Upstream product

• 151488-34-5 OsO₂(CH₂C(CH₃)3)2 

Relevant articles and documents

Imido/oxo exchange between osmium and tantalum as a route to Os(NAr)2R2 and OsO(NAr)R2 complexes (NAr = N-2,6-i-Pr2C6H3; R = CH2CMe3, CH2CMe2Ph, CH2SiMe3) and attempts to induce α-hydrogen abstraction to give alkylidene complexes

OsO2R2 (R = CH2-t-Bu, CH2CMe2Ph) or [OsO2(CH2SiMe3)2]n, reacts with 1 or 2 equiv of Ta(NAr)(O-t-Bu)3 (NAr = N-2,6-i-Pr2C6H3) to form complexes of the type OsO(NAr)R2 or Os(NAr)2R2. OsO(NAr)(CH2-t-Bu)2 reacts with 2 equiv of HCl or Me3SiI in CH2Cl2 or DME to form Os(NAr)(CH2-t-Bu)2Cl2 or Os(NAr)(CH2-t-Bu)2I2, respectively, or with SiMe3X in CH2-Cl2 to form green, crystalline Os(NAr)(CH2-t-Bu)2(OSiMe3)(X) (X = Cl, OTf). An X-ray structure of Os(NAr)(CH2-t-Bu)2(OSiMe3)(OTf) showed it to be an approximate square pyramid with a neopentyl group in the apical position. The reaction of OsO(NAr)(CH2-t-Bu)2 with 2 equiv of trimethylaluminum in pentane yields red trans-Os(NAr)(CH2-t-Bu)2-(CH3)2. None of the Os(VI) dineopentyl complexes shows any evidence for controlled α-hydrogen abstraction reactions.