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Issue 8, 2015
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Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles

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Abstract

In this work piperazine-1-carbodithioic acid (PZCDT) and piperazine-1,4-dicarbodithioic acid (PZbCDT) were synthesized. These analytes PZCDT and PZbCDT have chair conformations, which is expected to give specific surface-enhanced Raman scattering (SERS) effects on individual bands. SERS, UV-Visible, TEM and DFT methods have proved that the dithiocarbamate moiety is a potential and suitable functional group for silver and ZnO nanoparticles (AgNPs and ZnONPs). The enhancement mechanism and enhancement factors in both SERS@AgNPs and SERS@ZnONPs are also discussed. Two new strong bands appear at 1630, 1286 cm−1 with very large intensity in SERS@AgNPs, which signifies the conversion of the C–N bond of the dithiocarbamate moiety into C[double bond, length as m-dash]N bonds. The SERS signatures that are observed are quite different in SERS@AgNPs and SERS@ZnONPs.

Graphical abstract: Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles

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Publication details

The article was received on 22 Oct 2014, accepted on 05 Dec 2014 and first published on 18 Dec 2014


Article type: Paper
DOI: 10.1039/C4RA12928H
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Citation: RSC Adv., 2015,5, 5571-5579
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    Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles

    O. Prakash, P. Gautam, S. Kumar, P. Singh, R. K. Dani, M. K. Bharty, N. K. Singh, A. K. Ghosh, V. Deckert and R. K. Singh, RSC Adv., 2015, 5, 5571
    DOI: 10.1039/C4RA12928H

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