𝔖 Bobbio Scriptorium
✦   LIBER   ✦

dl-Phenyl­alaninium di­hydrogen phosphate

✍ Scribed by Ravikumar, B. ;Sridhar, B. ;Rajaram, R. K.

Publisher
International Union of Crystallography
Year
2001
Tongue
English
Weight
318 KB
Volume
57
Category
Article
ISSN
1600-5368

No coin nor oath required. For personal study only.

✦ Synopsis

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 phenylalaninium residue. The aggregation of the hydrophilic zone is in a layer parallel to (010) at x = 0, and the hydrophobic zone is sandwiched between two such layers at x = 0 and x = 1.

📜 SIMILAR VOLUMES

dl-Phenyl­alaninium nitrate
dl-Phenyl­alaninium nitrate
✍ Sridhar, B. ;Srinivasan, N. ;Rajaram, R. K. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 352 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.006 A Ê R factor = 0.047 wR factor = 0.141 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

dl-Threoninium di­hydrogen phosphate
dl-Threoninium di­hydrogen phosphate
✍ Ravikumar, B. ;Sridhar, B. ;Rajaram, R. K. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 273 KB
dl-Valinium di­hydrogen phosphate
dl-Valinium di­hydrogen phosphate
✍ Ravikumar, Bagavath Singh ;Sridhar, Balasubramanian ;Rajaram, Ramaswamy Karunana 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 294 KB

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.

dl-Phenyl­alaninium tri­chloro­acetate
dl-Phenyl­alaninium tri­chloro­acetate
✍ Rajagopal, K. ;Krishnakumar, R. V. ;Natarajan, S. 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 514 KB
dl-Phenyl­alaninium maleate at 123 K
dl-Phenyl­alaninium maleate at 123 K
✍ Alagar, M. ;Subha Nandhini, M. ;Krishnakumar, R. V. ;Mostad, A. ;Natarajan, S. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 269 KB