Novel homoleptic dinuclear zinc(II) complex {[Zn2(μ-ppdtc)2(ppdtc)2] [Zn2(μ2-ppdtc)2(ppdtc)2]} (1) and three new heteroleptic complexes [Zn(ppdtc)2(bipy)] (2), [Zn(2-mppdtc)2(py)] (3) and [Zn(mpdtc)2(py)] (4) (ppdtc=phenyl piperazine dithiocarbamate, mppdtc=2-methoxy phenyl piperazine dithiocarbamate and mpdtc=methyl piperazine dithiocarbamate) have been synthesized and characterized by elemental analyses, IR, 1H, 13C NMR and X-ray crystallography. Homoleptic complex {[Zn2(μ-ppdtc)2(ppdtc)2][Zn2(μ2-ppdtc)2(ppdtc)2]} (1) contains two different asymmetric units of [Zn2(μ-ppdtc)2(ppdtc)2] (B) and [Zn2(μ2-ppdtc)2(ppdtc)2] (A) in which each Zn(II) ion in one asymmetric dinuclear unit (B) possess tetrahedral geometry, whereas in other asymmetric dinuclear unit (A) both metal ions have five coordinate square pyramidal geometry. Complex [Zn(ppdtc)2(bipy)] (2) has an octahedral geometry, coordinated through two nitrogen atoms of the bipyridyl and four sulfur atoms of the two units of the dithiocarbamato ligands. Complexes [Zn(2-mppdtc)2(py)] (3) and [Zn(mpdtc)2(py)] (4) have distorted square pyramidal geometry, bonded through one pyridine nitrogen and four sulfur atoms of the two units of dithiocarbamato ligands. Complexes 1 and 2 are highly fluorescent in solution and emit light at 410 and 420nm upon excitation at 330 and 360nm wavelengths.