Structure and spectral properties of (O-Cyclohexyldithiocarbonatio-S,S′) bis(triphesnylphosphine) copper(I) complex

Abstract

The complex [(C₆H₁₁OCS₂)(PPh₃)₂Cu], was synthesized and characterized using IR, UV, and ¹H NMR. The crystal and molecular structure has been determined by X-ray diffraction. The yellow crystal of the complex is triclinic of space group $P\bar 1$, with parameters a=10.370(2)Å, b=13.530(3)Å, c=14.640(3)Å, α=92.60(3)°, β=108.00(3)°, γ=97.70(3)°, and Z=2. In the complex, the central Cu atom is in a distorted tetrahedral environment and chelated by two phosphorus atoms of the TRIPHOS and two sulfur atoms from the O-cyclohexyldithiocarbonate. The cyclohexane ring adopts a chair conformation. The thermal analytical data indicate that the complex begins to decompose at 101°C and stop at 360°C , leaving CuS. IR, UV, and NMR results supported the crystal structure.