Solid-state NMR and resonance Raman studies of ultramarine pigments

Eleonora Del Federico; Wolfgang Schoefberger; Rajeev Kumar; Wen Ling; Sofia M. Kapetanaki; Johanes Schelvis; Alexej Jerschow

Solid-state NMR and resonance Raman studies of ultramarine pigments

Eleonora Del Federico, Wolfgang Schoefberger, Rajeev Kumar, Wen Ling, Sofia M. Kapetanaki, Johanes Schelvis, Alexej Jerschow

Chemistry and Biochemistry

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

We report on a study of ultramarine pigments via Colorimetry, resonance Raman, and ²⁷Al, ²⁹Si solid-state NMR spectroscopy. NMR parameters are shown to correlate well with the intensities of Raman signals corresponding to the chromophores S ₃ ^-. and S ₂ ^-.. Further, a correlation is established between the colorimetric parameters L* (lightness) and C* (chromaticity) and the paramagnetic shift in NMR spectra for both ²⁷Al and ²⁹Si. The parameter h (hue) appeared not to vary over the range of paramagnetic host concentrations studied. Preliminary results on faded pigments in both acidic and basic media show that the concentration of diamagnetic guest molecules in the sodalite lattice rises, and some of the paramagnetic species are replaced.

Original language	English
Article number	OO5.4
Pages (from-to)	247-254
Number of pages	8
Journal	Materials Research Society Symposium Proceedings
Volume	852
State	Published - 2005
Event	2004 Materials Research Society Fall Meeting - Boston, MA, United States Duration: 30 Nov 2004 → 3 Dec 2004

Cite this

@article{b683da8963c24e41a5be1aa61ae07ccc,

title = "Solid-state NMR and resonance Raman studies of ultramarine pigments",

abstract = "We report on a study of ultramarine pigments via Colorimetry, resonance Raman, and 27Al, 29Si solid-state NMR spectroscopy. NMR parameters are shown to correlate well with the intensities of Raman signals corresponding to the chromophores S 3 -. and S 2 -.. Further, a correlation is established between the colorimetric parameters L* (lightness) and C* (chromaticity) and the paramagnetic shift in NMR spectra for both 27Al and 29Si. The parameter h (hue) appeared not to vary over the range of paramagnetic host concentrations studied. Preliminary results on faded pigments in both acidic and basic media show that the concentration of diamagnetic guest molecules in the sodalite lattice rises, and some of the paramagnetic species are replaced.",

author = "{Del Federico}, Eleonora and Wolfgang Schoefberger and Rajeev Kumar and Wen Ling and Kapetanaki, {Sofia M.} and Johanes Schelvis and Alexej Jerschow",

year = "2005",

language = "English",

volume = "852",

pages = "247--254",

journal = "Materials Research Society Symposium Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "2004 Materials Research Society Fall Meeting ; Conference date: 30-11-2004 Through 03-12-2004",

}

TY - JOUR

T1 - Solid-state NMR and resonance Raman studies of ultramarine pigments

AU - Del Federico, Eleonora

AU - Schoefberger, Wolfgang

AU - Kumar, Rajeev

AU - Ling, Wen

AU - Kapetanaki, Sofia M.

AU - Schelvis, Johanes

AU - Jerschow, Alexej

PY - 2005

Y1 - 2005

N2 - We report on a study of ultramarine pigments via Colorimetry, resonance Raman, and 27Al, 29Si solid-state NMR spectroscopy. NMR parameters are shown to correlate well with the intensities of Raman signals corresponding to the chromophores S 3 -. and S 2 -.. Further, a correlation is established between the colorimetric parameters L* (lightness) and C* (chromaticity) and the paramagnetic shift in NMR spectra for both 27Al and 29Si. The parameter h (hue) appeared not to vary over the range of paramagnetic host concentrations studied. Preliminary results on faded pigments in both acidic and basic media show that the concentration of diamagnetic guest molecules in the sodalite lattice rises, and some of the paramagnetic species are replaced.

AB - We report on a study of ultramarine pigments via Colorimetry, resonance Raman, and 27Al, 29Si solid-state NMR spectroscopy. NMR parameters are shown to correlate well with the intensities of Raman signals corresponding to the chromophores S 3 -. and S 2 -.. Further, a correlation is established between the colorimetric parameters L* (lightness) and C* (chromaticity) and the paramagnetic shift in NMR spectra for both 27Al and 29Si. The parameter h (hue) appeared not to vary over the range of paramagnetic host concentrations studied. Preliminary results on faded pigments in both acidic and basic media show that the concentration of diamagnetic guest molecules in the sodalite lattice rises, and some of the paramagnetic species are replaced.

UR - http://www.scopus.com/inward/record.url?scp=28844468970&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:28844468970

SN - 0272-9172

VL - 852

SP - 247

EP - 254

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

M1 - OO5.4

T2 - 2004 Materials Research Society Fall Meeting

Y2 - 30 November 2004 through 3 December 2004

ER -

Solid-state NMR and resonance Raman studies of ultramarine pigments

Abstract

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