The pyrophosphate NaFeP2O7: A cage structure
作者： M. Gabelica-Robert , M. Goreaud , Ph. Labbe , B. Raveau
DOI: 10.1016/0022-4596(82)90184-0
关键词:
摘要: The high-temperature form of NaFeP2O7 crystallizes in the monoclinic P21c space group with a = 7.3244(13), b 7.9045(7), c 9.5745(15), A, β 111.858(13)°, and Z 4. structure has been refined from 3842 reflections leading to R 0.040 Rw 0.047. II-NaFeP2O7 can be described by alternately stacking layers containing FeO6 octahedra formed P2O7 groups, parallel (001). Elongated cages are where two Na+ ions located. is compared that KAlP2O7. Both structures built up blocks three polyhedra, [FeP2O11] or [AlP2O11], including small OoctOtetOoct angle. These connected such way several types tunnels appear each structure.
harvard.edu
elsevier.com
sci-hub.se 参考文章(16)
Alexander Frank . Wells, Structural inorganic chemistry ,(1945)
C. Calvo, Crystal structure of .alpha.-calcium pyrophosphate Inorganic Chemistry. ,vol. 7, pp. 1345- 1351 ,(1968) , 10.1021/IC50065A019
N. C. Webb, The crystal structure of β-Ca2P2O Acta Crystallographica. ,vol. 21, pp. 942- 948 ,(1966) , 10.1107/S0365110X66004225
D. T. Cromer, J. T. Waber, Scattering factors computed from relativistic Dirac–Slater wave functions Acta Crystallographica. ,vol. 18, pp. 104- 109 ,(1965) , 10.1107/S0365110X6500018X
J. P. Giroult, M. Goreaud, P. Labbé, B. Raveau, Bronzes with a tunnel structure RbxP8W8nO24n+16. II. The third term of the series: RbxP8W24O88 Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. ,vol. 37, pp. 1163- 1166 ,(1981) , 10.1107/S0567740881005426
B. Domenges, M. Goreaud, P. Labbé, B. Raveau, P8W12O52: a mixed-valence tungsten oxide built up from WO6 octahedra and P2O7 groups Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. ,vol. 38, pp. 1724- 1728 ,(1982) , 10.1107/S0567740882007031
T. Suzuki, Atomic scattering factor for O2 Acta Crystallographica. ,vol. 13, pp. 279- 279 ,(1960) , 10.1107/S0365110X60000698
N. Krishnamachari, C. Calvo, The crystal structure of cobalt diphosphate Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. ,vol. 28, pp. 2883- 2885 ,(1972) , 10.1107/S0567740872007101
D. T. Cromer, ANOMALOUS DISPERSION CORRECTIONS COMPUTED FROM SELF-CONSISTENT FIELD RELATIVISTIC DIRAC-SLATER WAVE FUNCTIONS Acta Crystallographica. ,vol. 18, pp. 17- 23 ,(1965) , 10.1107/S0365110X6500004X
J. P. Giroult, M. Goreaud, P. Labbé, B. Raveau, P4W8O32: a mixed-valence tunnel structure built up of ReO3-type slabs connected through PO4 tetrahedra Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. ,vol. 37, pp. 2139- 2142 ,(1981) , 10.1107/S0567740881008248