Organomercury(II)-dithiocarbamate complexes : synthesis, characterization and fungicidal activity

college of Applied Sciences for Women (Delhi University), Jhilmil Colony, Vivek Vihar, Delhi-11 0 095, India

Punjab State Council fo~ Science and Technology, Chandigarh-160 022, India

Department of Chemistry, SGTB Khalsa College, University of Delhi, Delhi-11 0 007, India

Manuscript received 2 July 1998, revised 16 November 1998, accepted 8 December 1998

A number of organomercury(II)-dithiocarbamate complexes of the types, p-XC₆H₄HgL¹ (I) and p-XC₆H₄HgL² (II), where X= Me, MeO, NO₂; L¹ = phenyldithiocarbamate; L² = p-nitrophenyldithiocarbamate, have been synthesised. Conductance data indicate that the complexes are non-electrolytes. From ir and uv studies, the bonding modes of the ligands to the organomercury(II) moieties have been elucidated. The ¹³C nmr spectra support the stoichiometry of the complexes. The fragmentation pattern has been analysed on the basis of mass spectra. The compounds have been tested for fungicidal activity.