The novel bismuth derivative of N,N-diethyldithiocarbamate, (Et₂NCS₂)₂(NO₃)Bi(NO₃)Bi(S₂CNEt₂)₂~(HOCH₃), has been synthesized. The crystal and molecular structure has been determined by X-ray single crystal diffraction. The crystal belongs to triclinic system with space group P1—, a=0.9880(3) nm, b=1.2778(3) nm, c=3.1993(9) nm, α=89.888(4)°, β=85.728(4)°, γ=89.824(4)°, Z=4, V=4.0277(19) nm³, D_c=1.925 g/m³, μ=9.183 mm^－1, F(000)=2248, R₁=0.0525, wR₂ =0.0546. In this binuclear bismuth compound, two bismuth atoms are seven and eight coordinated with a distorted pentagonal bipyramidal and dodecahedron geometry, respectively. The molecules are packed in the unit cell in one-dimensional chain structure through aweak S…S interaction between the S atoms and S atoms of an adjacent molecule and intermolecular O…H—O hydrogen bonds.

Key words: binuclear bismuth compound, N,N-diethyl dithiocarbamate,synthesis, crystal structure