Application In Synthesis of Tris(3,5-bis(trifluoromethyl)phenyl)phosphine. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine, is researched, Molecular C24H9F18P, CAS is 175136-62-6, about Substituent effects on aurophilicity and π-π interaction in crystals of arylphosphine-Au(I) derivatives. Synthesis and x-ray structural studies of compounds (CX3C6H4)3P-Au-X and {(CF3)2C6H3}3P-Au-X. Author is Nunokawa, Keiko; Onaka, Satoru; Tatematsu, Tsutomu; Ito, Mitsuhiro; Sakai, Jyun.
Substituent effects on aurophilic interactions were explored by single-crystal x-ray diffraction methods for Au(I) complexes of monodentate phosphines, R’3P-Au-X (X = Cl, Sph, and Spy). When a CF3 substituent is introduced at a meta position of the Ph ring in Ph3P, aurophilicity was accrued in ClAuP(m-CF3C6H4)3. However, aurophilicity was weakened by introducing two CF3 groups at both meta positions. When a CF3 substituent is substituted for a H atom in the para position or when a CH3 substituent is introduced in the meta and/or para positions, such an effect was not observed for R’3PAuCl and R’3PAuSph. Most dimers constructed by aurophilicity appear to be reinforced by π-π interactions between the Ph ring of the Sph ligand or the pyridine ring of the Spy ligand and one of the Ph rings in the R’3P ligand. A novel ladder-like supra mol. architecture is created in the crystal of {3,5-(F3C)2C6H3}3PAuSph, and a tetramer is formed in the crystal of Ph3PAuSpy by aurophilic and π-π interactions. Substituent effects on important bond lengths are discussed.
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Reference:
Piperidine – Wikipedia,
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