1443500-50-2

Basic information

• Product Name: [Pt(2-(2′-pyridyl)quinoline(-H))(Cl)(PPh₃)]
• CAS NO: 1443500-50-2
• Molecular Weight: 698.063
• Mol File: 1443500-50-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Pt(2-(2′-pyridyl)quinoline(-H))(Cl)(PPh₃)](CAS DataBase Reference)
• NIST Chemistry Reference: [Pt(2-(2′-pyridyl)quinoline(-H))(Cl)(PPh₃)](1443500-50-2)
• EPA Substance Registry System: [Pt(2-(2′-pyridyl)quinoline(-H))(Cl)(PPh₃)](1443500-50-2)

Safety Data

• Hazardous Substances Data: 1443500-50-2(Hazardous Substances Data)

Upstream product

• 1443500-47-7 [Pt(2-(2′-pyridyl)quinoline(-H))(Me)(DMSO)] 
• 7491-86-3 2-(2-pyridinyl)quinoline 
• 1436-43-7 quinoline-2-carbonitrile 
• 1613-37-2 Quinoline N-oxide 
• 1443500-48-8 [Pt(2-(2′-pyridyl)quinoline(-H))(Cl)(DMSO)] 
• 603-35-0 triphenylphosphine 

Downstream Products

• 1443500-51-3 C₃₂H₂₅ClN₂PPt⁽¹⁺⁾*BF₄^(1-) 

Relevant articles and documents

Rollover cyclometalation with 2-(2′-pyridyl)quinoline

Rollover cyclometalation of 2-(2′-pyridyl)quinoline, L, allowed the synthesis of the family of complexes [Pt(L-H)(X)(L′)] and [Pt(L)(X)(L′)][BF4] (X = Me, Cl; L′ = neutral ligand), the former being the first examples of Pt(II) rollover complexes derived from the ligand L. The ligand L* is a C,N cyclometalated, N-protonated isomer of L, and can also be described as an abnormal-remote pyridylene. The corresponding [Pt(L-H)(Me)(L′)]/[Pt(L)(Me)(L′)]+ complexes constitute an uncommon Bronsted-Lowry acid-base conjugated couple. The species obtained were investigated in depth through NMR and UV-vis spectroscopy, cyclic voltammetry, and density functional theory (DFT) methods to correlate different chemico-physical properties with the nature of the cyclometalated ligand (e.g., L vs bipy or L* vs L) and of the neutral ligand (DMSO, CO, PPh3). The crystal structures of [Pt(L-H)(Me)(PPh3)], [Pt(L-H)(Me)(CO)] and [Pt(L)(Me)(CO)][BF 4] were determined by X-ray powder diffraction methods, the latter being the first structure of a Pt(II)-based, protonated, rollover complex to be unraveled. The isomerization of [Pt(L)(Me)(PPh3)]+ in solution proceeds through a retro-rollover process to give the corresponding adduct [Pt(L)(Me)(PPh3)]+, where L acts as a classical N,N chelating ligand. Notably, the retro-rollover reaction is the first process, among the plethora of Pt-C bond protonolysis reactions reported in the literature, where a Pt-C(heteroaryl) bond is cleaved rather than a Pt-C(alkyl) one.