Binuclear titanium(III) complex derived from diphenylphosphanylmalononitrile, [μ2(N,N′)-Ph2PC(CN)2TiCp2]2: Synthesis, structure and properties

Diphenylphosphanyl malononitrile, Ph2P–CH(CN)2 (1) reacts with Cp2TiCl in the presence of triethylamine in THF to give air sensitive Ti(III) complex [μ2(N,N′)-Ph2PC(CN)2TiCp2]2 (2), which is centrosymmetric dimer in the solid state, containing nearly planar 12-member metallocycle. Solution of 2 (200 K) exhibits anisotropic EPR spectrum; every spectral component contains splitting on a single phosphorus nucleus.

Graphical abstractPh2P–CH(CN)2 reacts with Cp2TiCl in the presence of triethylamine in THF to give air sensitive Ti(III) complex [μ2(N,N′)-Ph2PC(CN)2TiCp2]2, which is centrosymmetric dimer in the solid state, containing nearly planar 12-member metallocycle. Solution of the complex exhibits anisotropic EPR spectrum (200 K); every spectral component contains splitting on a single phosphorus nucleus.Figure optionsDownload full-size imageDownload as PowerPoint slide