108148-25-0

Basic information

• Product Name: cis-((H₂cyclen)P)PtCl₂PPh₃}Cl
• Synonyms: cis-((H₂cyclen)P)PtCl₂PPh₃}Cl
• CAS NO: 108148-25-0
• Molecular Weight: 764.961
• Mol File: 108148-25-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: cis-((H₂cyclen)P)PtCl₂PPh₃}Cl(CAS DataBase Reference)
• NIST Chemistry Reference: cis-((H₂cyclen)P)PtCl₂PPh₃}Cl(108148-25-0)
• EPA Substance Registry System: cis-((H₂cyclen)P)PtCl₂PPh₃}Cl(108148-25-0)

Safety Data

• Hazardous Substances Data: 108148-25-0(Hazardous Substances Data)

Upstream product

• 10199-34-5 cis-dichlorobis(triphenylphosphine)platinum(II) 
• 64317-97-1 cyclenphosphorane 
• 118474-27-4 {(η2-HcyclenP)PtClPPH3}BF4 
• 108148-24-9 {(eta.2-cyclenphosphorane)PtClPPh₃} 

Relevant articles and documents

Phosphoranide ligands with variable coordination modes. Synthesis, properties, and X-ray crystal structures of [(η2-HcyclenP)Pt(Cl)PPh3]BF4 and [(H2cyclenP)PtCl2PPh3]Cl

The complex (η2-cyclenP)Pt(Cl)PPh3 (1) is readily formed by the deprotonation of [(H2cyclenP)PtCl2PPh3]Cl (2) with NaOH in CH2Cl2. Both complexes contain phosphoranide (R4P:-) ligands. Complex 1 reacts with HBF4 to give the monoprotonated derivative [(η2-HcyclenP)Pt(Cl)PPh3]BF4 (3), a species in which one of the P-N bonds of the cyclenP unit is cleaved and the proton is attached to that nitrogen. Treatment of 3 with HCl in THF gives [(H2cyclenP)PtCl2PPh3]BF4 (4) (which contains a cation identical with that of 2), while treatment of 3 with NaCl in Me2SO leads to 1 and 2 via disproportionation. The X-ray crystal structures of 2 and 3 were obtained. Data for 2 indicate that the axial nitrogens are protonated and the cyclenP unit is oriented with its P-N axial bonds perpendicular to the platinum coordination plane. Data for 3 show that the HcyclenP unit is coordinated to the platinum via phosphine and amine linkages and that the phosphorus is four-coordinate. X-ray data: C26-N4P2Cl3Pt (2), orthorhombic, space group Pcab, a = 15.391 (4) A?, b = 17.021 (6) A?, c = 25.226 (14) A?, Z = 8, R = 0.087, Rw = 0.089; C26H31BN4F4P2ClPt (3), monoclinic, space group P21/c, a = 14.873 (3) A?, b = 13.021 (3) A?, c = 15.723 (3) A?, β = 106.654 (14)°, Z = 4, R = 0.044, Rw = 0.046.

PENTACOORDINATE PHOSPHORUS IN TRANSITION-METAL CHEMISTRY

The pentacoordinate phosphorus molecule, cyclenphosphorane (cyclenPH), is found to be a useful and unique ligand in transition-metal chemistry.It reacts with metal-carbonyl dimers to cleave the dimers and yield covalent phosphoranide-metal complexes and metal carbonyl anions.With cis-Cl2Pt(PPh3)2, two phosphoranide-metal complexes are formed, one ionic and the other covalent.A unique reaction occurs with ClRh(PPh3)3 where, initially, a product is obtained in which one of the P-N bonds of the cyclenP moiety is cleaved.This species undergoes a threefragment oxidative addition of CH2Cl2 to reform the pentacoordinate phosphorus and also form a novel P-N-C-Rh metallocycle.