21308-68-9

Basic information

• Product Name: trans-dibromo-bis-(benzonitrile)platinum(II)
• CAS NO: 21308-68-9
• Molecular Weight: 561.135
• Mol File: 21308-68-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: trans-dibromo-bis-(benzonitrile)platinum(II)(CAS DataBase Reference)
• NIST Chemistry Reference: trans-dibromo-bis-(benzonitrile)platinum(II)(21308-68-9)
• EPA Substance Registry System: trans-dibromo-bis-(benzonitrile)platinum(II)(21308-68-9)

Safety Data

• Hazardous Substances Data: 21308-68-9(Hazardous Substances Data)

Upstream product

• 10025-99-7 potassium tetrachloroplatinate(II) 
• 100-47-0 benzonitrile 
• 7558-02-3 potassium bromide 
• 13455-12-4 platinum(II) bromde 

Downstream Products

• 1083165-46-1 trans-[PtBr₂(benzonitrile)(N=C(Ph)ON(Me)CH(Ph))] 
• 1083165-49-4 trans-[PtBr₂(N=C(Ph)ON(Me)CH(Ph))2] 
• 1247793-91-4 trans-(benzonitrile)-dibromo[2,3-dihydro-3-ethoxycarbonyl-3-ethoxycarbonyl-methyl-2-methyl-5-phenyl-1,2,4-oxadiazole-κN(4)]platinum 
• 1247793-90-3 trans-(benzonitrile)-dibromo[2,3-dihydro-3-(2-furyl)-2-methyl-5-phenyl-1,2,4-oxadiazole-κN(4)]platinum 
• 1247793-83-4 trans-(benzonitrile)-dibromo[2,3-dihydro-3-(2-methoxyphenyl)-2-methyl-5-phenyl-1,2,4-oxadiazole-κN(4)]platinum 
• 1247793-86-7 trans-(benzonitrile)-dibromo[2,3-dihydro-3-(2,6-dimethoxyphenyl)-2-methyl-5-phenyl-1,2,4-oxadiazole-κN(4)]platinum 
• 1247793-87-8 trans-(benzonitrile)-dibromo[2,3-dihydro-3-(2,4,6-trimethoxyphenyl)-2-methyl-5-phenyl-1,2,4-oxadiazole-κN(4)]platinum 
• 125784-54-5 {Pt(2)Br2} 

Relevant articles and documents

Synthesis and characterisation of mixed ligand Pt(ii) and Pt(iv) oxadiazoline complexes

The nitrile ligands in trans-[PtX2(PhCN)2] (X = Cl, Br, I) undergo sequential 1,3 dipolar cycloadditions with nitrones R 1R2C=N+(Me)-O- (R1 = H, R2 = Ph; R1 = CO2Et, R2 = CH 2CO2Et) to selectively form the Δ4-1,2,4- oxadiazoline complexes trans-[PtX2(PhCN) {N=C(Ph)-O-N(Me)-CR 1R2}] or trans-[PtX2{N=C(Ph)-O-N(Me)-CR 1R2}2] in high yields. The reactivity of the mixed ligand complexes trans-[PtX2(PhCN){N=C(Ph)-O-N(Me)-CR 1R2}] towards oxidation and ligand substitution was studied in more detail. Oxidation with Cl2 or Br2 provides the Pt(iv) species trans-[PtX2Y2(PhCN){N=C(Ph)-O-N(Me)- CH(Ph)}] (X, Y = Cl, Br). The mixed halide complex (X = Cl, Y = Br) undergoes halide scrambling in solution to form trans-[PtX(4-n)Y n(PhCN){N=C(Ph)-O-N(Me)-CH(Ph)}] as a statistical mixture. Ligand substitution in trans-[PtCl2(PhCN){N=C(Ph)-O-N(Me)-CR 1R2}] allows for selective replacement of the coordinated nitrile by nitrogen heterocycles such as pyridine, DMAP or 1-benzyl-2- methylimidazole to produce mixed ligand Pt(ii) complexes of the type trans- [PtX2(heterocycle){N=C(Ph)-O-N(Me)-CR1R2}]. All compounds were characterised by elemental analysis, mass spectrometry, IR and 1H, 13C and 195Pt NMR spectroscopy. Single-crystal X-ray structural analysis of (R,S)-trans-[PtBr 2{N=C(Ph)-O-N(Me)-CH(Ph)}2] and trans-[PtCl 2(C5H5N){N=C(Ph)-O-N(Me)-CH(Ph)}] confirms the molecular structure and the trans configuration of the heterocycles relative to each other. The Royal Society of Chemistry.