Saltar al contenido
Merck

Surface-enhanced Raman scattering and DFT investigation of Eriochrome Black T metal chelating compound.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2011-03-23)
László Szabó, Krisztian Herman, Nicolae Leopold, Claudia Buzumurgă, Vasile Chiş
RESUMEN

The surface-enhanced Raman scattering (SERS) spectra of Eriochrome Black T (EBT) and its Cu(II), Fe(III), Mn(II) and Pb(II) complexes were recorded using a hydroxylamine reduced silver colloid. Molecular geometry optimization, molecular electrostatic potential (MEP) distribution and vibrational frequencies calculation were performed at B3LYP/6-31G(d) level of theory for the EBT molecule and its Cu(EBT), Fe(EBT) and Mn(EBT) metal complexes. Differentiation between EBT complexes of Cu(II), Fe(III), Mn(II) and Pb(II) is shown by the SERS spectral features of each complex.

MATERIALES
Referencia del producto
Marca
Descripción del producto

Sigma-Aldrich
Eriochrome® Black T, ACS reagent (indicator grade)
Número de referencia del producto (SKU)
Tamaño de envase
Disponibilidad
Precio
Cantidad
Sigma-Aldrich
Eriochrome® Black T solution
Número de referencia del producto (SKU)
Tamaño de envase
Disponibilidad
Precio
Cantidad
Sigma-Aldrich
Eriochrome® Black T, SAJ special grade
Número de referencia del producto (SKU)
Tamaño de envase
Disponibilidad
Precio
Cantidad