Synthesis And Characterization of Nano-Sized Triphenylphosphine Capped Bis(4-Methylpiperazine-1-Carbodithioato)Zinc(Ⅱ)

摘要

Present study involves synthesis of and studies on a nanosized coordinate complex of 4-methylpiperazine-1-carbodithioate (4-MPipzcdt) with zinc(Ⅱ), Zn(4-MPipzcdt)_2, using triphenylphosphine (PPh_3) as capping agent. EDAX spectrum of compound showed 40 wt% Zn; 6 wt% sulphur and 2 wt% phosphorus. SEM and TEM studies revealed needle shaped nanosized particles (8-12 nm). FT-IR spectrum showed bands at 1000 cm~(-1) and 978 cm~(-1) due to unsymmetrical binding of 4-MPipzcdt to Zn(Ⅱ). Surface plasmon resonance of compound gave λ_(max) at 292 nm. XRD pattern showed sharp bands indicating crystalline nature of compound. Photocatalytic degradation of methyl orange was 60% with compound concentration of 1.5 mg/ml at pH 4. Increased inhibition in lipase activity (181.85 to 65.61 μmol/ml/min) in the concentration range of 100 -600 g/ml has been observed.