Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid

A new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid, l-isoleucine C(6)H(13)NO(2), crystallizes in the monoclinic space group P2(1) with four independent mol­ecules in the asymmetric unit. The mol­ecules are zwitterions. In the crystal, N—H⋯O hydrogen bonds link two pairs of independent mol­e...

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Autores principales: Curland, Sofia, Meirzadeh, Elena, Diskin-Posner, Yael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6002834/
https://www.ncbi.nlm.nih.gov/pubmed/29951228
http://dx.doi.org/10.1107/S2056989018006126
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author Curland, Sofia
Meirzadeh, Elena
Diskin-Posner, Yael
author_facet Curland, Sofia
Meirzadeh, Elena
Diskin-Posner, Yael
author_sort Curland, Sofia
collection PubMed
description A new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid, l-isoleucine C(6)H(13)NO(2), crystallizes in the monoclinic space group P2(1) with four independent mol­ecules in the asymmetric unit. The mol­ecules are zwitterions. In the crystal, N—H⋯O hydrogen bonds link two pairs of independent mol­ecules and their symmetry-related counterparts to form two types of layers stacked in an anti-parallel manner parallel to (001). The hydro­phobic aliphatic isopropyl groups protrude from these layers.
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spelling pubmed-60028342018-06-27 Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid Curland, Sofia Meirzadeh, Elena Diskin-Posner, Yael Acta Crystallogr E Crystallogr Commun Research Communications A new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid, l-isoleucine C(6)H(13)NO(2), crystallizes in the monoclinic space group P2(1) with four independent mol­ecules in the asymmetric unit. The mol­ecules are zwitterions. In the crystal, N—H⋯O hydrogen bonds link two pairs of independent mol­ecules and their symmetry-related counterparts to form two types of layers stacked in an anti-parallel manner parallel to (001). The hydro­phobic aliphatic isopropyl groups protrude from these layers. International Union of Crystallography 2018-05-01 /pmc/articles/PMC6002834/ /pubmed/29951228 http://dx.doi.org/10.1107/S2056989018006126 Text en © Curland et al. 2018 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/
spellingShingle Research Communications
Curland, Sofia
Meirzadeh, Elena
Diskin-Posner, Yael
Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title_full Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title_fullStr Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title_full_unstemmed Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title_short Crystal structure of a new polymorph of (2S,3S)-2-amino-3-methyl­penta­noic acid
title_sort crystal structure of a new polymorph of (2s,3s)-2-amino-3-methyl­penta­noic acid
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6002834/
https://www.ncbi.nlm.nih.gov/pubmed/29951228
http://dx.doi.org/10.1107/S2056989018006126
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