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dl-Valinium di­hydrogen phosphate

✍ Scribed by Ravikumar, Bagavath Singh ;Sridhar, Balasubramanian ;Rajaram, Ramaswamy Karunanandam


Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
294 KB
Volume
58
Category
Article
ISSN
1600-5368

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✦ Synopsis


In the title compound, C 5 H 12 O 2 N + ÁH 2 PO 4 À , the valinium and phosphate ions are held together by a strong OÐHÁ Á ÁO hydrogen bond. The valinium residue has gauche II conformation. The phosphate anion links the amino acids, extending as a chain running along the b axis.


📜 SIMILAR VOLUMES


dl-Threoninium di­hydrogen phosphate
✍ Ravikumar, B. ;Sridhar, B. ;Rajaram, R. K. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 273 KB
dl-Phenyl­alaninium di­hydrogen phosphat
✍ Ravikumar, B. ;Sridhar, B. ;Rajaram, R. K. 📂 Article 📅 2001 🏛 International Union of Crystallography 🌐 English ⚖ 318 KB

ÁH 2 PO 4 À , the racemate has crystallizes in a non-centrosymmetric space group, Pc. However, both the phenylalaninium and dihydrogen phosphate residues are related by a pseudo-inversion center at about (0.5, 0.25, 0.25). Each phosphate anion forms a strong OÐHÁ Á ÁO hydrogen bond with a phenylalan

dl-Valinium perchlorate
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Single-crystal X-ray study T = 105 K Mean '(C±C) = 0.002 A Ê R factor = 0.036 wR factor = 0.105 Data-to-parameter ratio = 32.2 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

dl-Valinium nitrate
✍ Srinivasan, N. ;Sridhar, B. ;Rajaram, R. K. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 384 KB
dl-Valine dl-valinium picrate
✍ Anitha, K. ;Annavenus, S. ;Sridhar, B. ;Rajaram, R. K. 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 396 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.006 A Ê Disorder in main residue R factor = 0.058 wR factor = 0.181 Data-to-parameter ratio = 12.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

dl-Valinium trifluoro­acetate
✍ Suresh, J. ;Natarajan, S. 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 302 KB