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Polymorphism and molecular conformations of non-protonated α-amino acids

Uday Mukhopadhyay 1
Uday Mukhopadhyay
, 
Ivan Bernal 1
Ivan Bernal
10.1070/MC2004v014n06ABEH002056
Published 2004-12-17
Communication , Volume 14, Issue 6, 270-276
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Mukhopadhyay U., Bernal I. Polymorphism and molecular conformations of non-protonated α-amino acids // Mendeleev Communications. 2004. Vol. 14. No. 6. pp. 270-276.
GOST all authors (up to 50) Copy
Mukhopadhyay U., Bernal I. Polymorphism and molecular conformations of non-protonated α-amino acids // Mendeleev Communications. 2004. Vol. 14. No. 6. pp. 270-276.
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TY - JOUR
DO - 10.1070/MC2004v014n06ABEH002056
UR - https://mendcomm.colab.ws/publications/10.1070/MC2004v014n06ABEH002056
TI - Polymorphism and molecular conformations of non-protonated α-amino acids
T2 - Mendeleev Communications
AU - Mukhopadhyay, Uday
AU - Bernal, Ivan
PY - 2004
DA - 2004/12/17
PB - Mendeleev Communications
SP - 270-276
IS - 6
VL - 14
ER -
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@article{2004_Mukhopadhyay,
author = {Uday Mukhopadhyay and Ivan Bernal},
title = {Polymorphism and molecular conformations of non-protonated α-amino acids},
journal = {Mendeleev Communications},
year = {2004},
volume = {14},
publisher = {Mendeleev Communications},
month = {Dec},
url = {https://mendcomm.colab.ws/publications/10.1070/MC2004v014n06ABEH002056},
number = {6},
pages = {270--276},
doi = {10.1070/MC2004v014n06ABEH002056}
}
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Mukhopadhyay, Uday, and Ivan Bernal. “Polymorphism and molecular conformations of non-protonated α-amino acids.” Mendeleev Communications, vol. 14, no. 6, Dec. 2004, pp. 270-276. https://mendcomm.colab.ws/publications/10.1070/MC2004v014n06ABEH002056.

Abstract

The stereochemistry of non-protonated α-amino acids was examined using the data available in the literature for polymorphic crystals of those substances. The object of the study was to ascertain the extent to which such molecules are capable of exhibiting substantial changes in their geometry. We have found that, in the currently available data base, there are two domains: those exhibiting small (or nearly negligible) variations in conformations and those exhibiting medium to disturbingly large internal divergences in stereochemical parameters. Given the information provided by the authors, on how the crystals were obtained, it is impossible to arrive at any useful conclusions on the relationship between crystal preparation and the resulting stereochemistry of the molecules present in that polymorph.

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