The crystal structure of a new ferrocenyl P,N ligand: 1-[(2,2-di-methyl-hydrazin-1-yl-idene)meth-yl]-1'-(di-phenyl-phospho-rothio-yl)ferrocene

Abstract

The asymmetric unit of the title compound, [Fe(C₈H₁₁N₂)(C₁₇H₁₄PS)], contains two independent mol-ecules (A and B) with very similar conformations. Each mol-ecule is built up from a ferrocene unit substituted in the 1 and 1' positions by a protected sulfur di-phenyl-phosphine and by a di-methyl-hydrazine, -C(H)=N-N(CH₃)₂, fragment. The two independent mol-ecules are linked by a C-H⋯N hydrogen bond. In the crystal, the A-B dimer is linked by a pair of C-H⋯S hydrogen bonds, forming a centrosymmetric four-mol-ecule arrangement. These units are linked by C-H⋯π inter-actions, forming a supra-molecular three-dimensional structure.

Keywords: C—H⋯π inter­actions; catalysis; crystal structure; ferrocenyl P,N ligands; hydrazine; hydrogen bonding; thio­phosphine.