Crystallographic properties of diammonium phosphate, (NH4)2HPO4
✍ Scribed by Smith, J. P. ;Lehr, J. R. ;Brown, W. E.
- Book ID
- 114517312
- Publisher
- International Union of Crystallography
- Year
- 1957
- Tongue
- English
- Weight
- 121 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0365-110X
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📜 SIMILAR VOLUMES
Ammonium zinc phosphate, (NH 4 )Zn(HPO 4 )(H 2 PO 4 ), is built up from in®nite 4-ring chains of vertex-sharing ZnO 4 and (H/ H 2 )PO 4 tetrahedra [d av (ZnÐO) = 1.943 (2) A Ê and d av (PÐO) = 1.534 (2) A Ê ] crosslinked by ammonium cations. The intrachain OÐHÁ Á ÁO hydrogen bond appears to be essen
The asymmetric unit of the compound (NH 4 ) 7 (HPO 4 ) 2 (PO 4 ) consists of two hydrogen phosphate anions, one phosphate anion and seven ammonium cations, all of them located in general positions. The two [PO 3 (OH)] 2À anions are linked to the PO 4 3À anion via an O-HÁ Á ÁO hydrogen bond to form a