Growth, structural, spectroscopic and optical studies of pure and amino acid (glycine) doped methyl-para-hydroxy benzoate single crystals

Abstract Single crystals of the amino acid glycine (Gly) C2H5NO2 doped with croconic acid (CA) C5H2O5 were synthesized by evaporation from an aqueous solution. The crystals grow in the form of hexagonal pyramids or thin plates. Analysis of polarized Raman scattering spectra (excitation wavelength of 532 nm) measured at room temperatures showed that crystals in the form of pyramids corresponded to γ-polymorph (γ-Gly), and crystals in the form of plates to α-polymorph of glycine (α - Gly). The presence of croconic acid molecules in the crystals is confirmed by the change in their color from white in pure Gly crystals to light or dark yellow, characteristic of CA crystals, as well as the presence of weak lines corresponding to CA in the Raman spectra. In single crystals of both Gly:CA polymorphs, strong green luminescence significantly exceeding the intensity of Raman scattering is observed in the range 400 - 700 nm with a maximum at 510 nm (2.44 eV) upon excitation at λ= 325 nm.

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Time-Resolved Optical Studies of Perovskite Polycrystalline Films, Single Crystals and their Surfaces

10.29363/nanoge.fallmeeting.2018.087 ◽

2018 ◽

Author(s):

Matthew Beard

Keyword(s):

Single Crystals ◽

Polycrystalline Films ◽

Optical Studies ◽

Time Resolved

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Optical Studies of a Bacterial Photoreceptor Protein, Photoactive Yellow Protein, in Single Crystals

Biochemistry ◽

10.1021/bi00003a022 ◽

1995 ◽

Vol 34 (3) ◽

pp. 879-890 ◽

Cited By ~ 47

Author(s):

Kingman Ng ◽

Elizabeth D. Getzoff ◽

Keith Moffat

Keyword(s):

Single Crystals ◽

Photoactive Yellow Protein ◽

Optical Studies

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P.10 The effect of flooding with the non-essential amino acid glycine on the incorporation of constantly infused tracer leucine into skeletal muscle

Clinical Nutrition ◽

10.1016/s0261-5614(96)80137-3 ◽

1996 ◽

Vol 15 ◽

pp. 25 ◽

Cited By ~ 1

Author(s):

K. Smith ◽

N. Reynolds ◽

A. Patel ◽

M.J. Rennie

Keyword(s):

Skeletal Muscle ◽

Amino Acid ◽

Essential Amino Acid ◽

Amino Acid Glycine

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SYNTHESIS, GROWTH, STRUCTURAL, OPTICAL, SPECTROSCOPIC, THERMAL AND NONLINEAR OPTICAL STUDIES OF L-PROLINE DOPED POTASSIUM DIHYDROGEN PHOSPHATE SINGLE CRYSTALS

International Journal of Advance Engineering and Research Development ◽

10.21090/ijaerd.ncn18 ◽

2017 ◽

Vol 04 (06) ◽

Keyword(s):

Single Crystals ◽

Nonlinear Optical ◽

Potassium Dihydrogen Phosphate ◽

Dihydrogen Phosphate ◽

Optical Studies ◽

Potassium Dihydrogen

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Magneto-Optical Studies of Chemical Inhomogeneities in Bi2212 Single Crystals

Magneto-Optical Imaging ◽

10.1007/978-94-007-1007-8_15 ◽

2004 ◽

pp. 119-124

Author(s):

Noriko Chikumoto ◽

Kimiyasu Furusawa ◽

Masato Murakami

Keyword(s):

Single Crystals ◽

Optical Studies

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ESR and Optical Studies on γ-Irradiated MgCl2 Single Crystals

Journal of the Physical Society of Japan ◽

10.1143/jpsj.52.267 ◽

1983 ◽

Vol 52 (1) ◽

pp. 267-271 ◽

Cited By ~ 7

Author(s):

Shigeo Kinno ◽

Ryumyo Onaka

Keyword(s):

Single Crystals ◽

Optical Studies

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Effect of amino group protonation on the carboxyl group in aqueous glycine observed by O 1s X-ray emission spectroscopy

Physical Chemistry Chemical Physics ◽

10.1039/c7cp08305j ◽

2018 ◽

Vol 20 (36) ◽

pp. 23214-23221 ◽

Cited By ~ 5

Author(s):

Y. Horikawa ◽

T. Tokushima ◽

O. Takahashi ◽

Y. Harada ◽

A. Hiraya ◽

...

Keyword(s):

Aqueous Solution ◽

Amino Acid ◽

Electronic Structures ◽

Emission Spectroscopy ◽

Selective Excitation ◽

Carboxyl Group ◽

Amino Group ◽

X Ray ◽

Excitation Conditions ◽

Amino Acid Glycine

The valence electronic structures of the amino acid glycine in aqueous solution were investigated in detail through X-ray emission spectroscopy at O 1s excitation under selective excitation conditions of the CO site in the carboxyl group.

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