LMucko/crystallography-open-database huggingface dataset:
Negative thermal expansion in orthorhombic Nb O P O4
Amos, T.; Sleight, A.W.; Journal of Solid State Chemistry 160 (2001) 230–238; doi:

data_1517684
_publ_section_title
;
 Negative thermal expansion in orthorhombic Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              230
_journal_page_last               238
_journal_volume                  160
_journal_year                    2001
_chemical_formula_structural     '(Nb O) (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Oxoniobium Phosphate(V)'
_space_group_IT_number           14
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 120.67(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.098(1)
_cell_length_b                   5.2763(6)
_cell_length_c                   13.222(2)
_cell_volume                     785.9(4)
_refine_ls_R_factor_all          0.056
_cod_data_source_file            NbPO5_P21_c_DC257.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        785.94
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517684
Negative thermal expansion in orthorhombic Nb O P O4
Amos, T.; Sleight, A.W.; Journal of Solid State Chemistry 160 (2001) 230–238; doi:

data_1517685
_publ_section_title
;
 Negative thermal expansion in orthorhombic Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              230
_journal_page_last               238
_journal_volume                  160
_journal_year                    2001
_chemical_formula_structural     '(Nb O) (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Oxoniobium Phosphate(V)'
_space_group_IT_number           14
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 120.60(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.081(10)
_cell_length_b                   5.2875(6)
_cell_length_c                   13.255(2)
_cell_volume                     789.1(7)
_refine_ls_R_factor_all          0.056
_cod_data_source_file            NbPO5_P21_C_DC262.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        789.12
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517685
The crystal structure of PNb~9~O~25~, (P~2~O~5~ . 9Nb~2~O~5~)
Roth, R. S.; Wadsley, A. D.; Andersson, S.; Acta Crystallographica 18 (1965) 643–647; doi:10.1107/s0365110x65001500

data_2310145
_publ_section_title
;
 The crystal structure of PNb~9~O~25~, (P~2~O~5~ . 9Nb~2~O~5~)
;
_journal_coden_ASTM              ACCRA9
_journal_issue                   4
_journal_name_full               'Acta Crystallographica'
_journal_page_first              643
_journal_page_last               647
_journal_paper_doi               10.1107/s0365110x65001500
_journal_volume                  18
_journal_year                    1965
_chemical_formula_structural     'P Nb9 O25'
_chemical_formula_sum            'Nb9 O25 P'
_chemical_name_systematic        'Phosphorus Niobium Oxide (1/9/25)'
_space_group_IT_number           82
_symmetry_Int_Tables_number      82
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   15.6
_cell_length_b                   15.6
_cell_length_c                   3.828
_cell_volume                     931.582
_cod_data_source_file            Nb9PO25_I_4_DC263.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        931.58
_cod_original_formula_sum        'Nb9 O25 P1'
_cod_database_code               2310145
The Crystal Structure of Nb O P O4
Longo, J.M.; Kierkegaard, P.; Acta Chemica Scandinavica 20 (1966) 72–78; doi:

data_1517698
_publ_section_title
;
 The Crystal Structure of Nb O P O4
;
_journal_name_full               'Acta Chemica Scandinavica'
_journal_page_first              72
_journal_page_last               78
_journal_volume                  20
_journal_year                    1966
_chemical_formula_structural     'Nb O P O4'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate'
_space_group_IT_number           85
_symmetry_Int_Tables_number      85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.3873(10)
_cell_length_b                   6.3873(10)
_cell_length_c                   4.1037(8)
_cell_volume                     167.42(5)
_cod_data_source_file            NbPO5_P4_n_DC264.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        167.42
_cod_original_sg_symbol_H-M      'P 4/n Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517698
Beitraege zum thermischen Verhalten wasserfreier Phosphate. VII: Darstellung, Struktur und thermisches Verhalten von orthorhombischem NbPO5-d
Kaiser, U.; Schmidt, G.; Glaum, R.; Gruehn, R.; Zeitschrift fuer Anorganische und Allgemeine Chemie 607 (1992) 113–120; doi:

data_1517720
_publ_section_title
;
 Beitraege zum thermischen Verhalten wasserfreier Phosphate. VII:
 Darstellung, Struktur und thermisches Verhalten von orthorhombischem
 NbPO5-d
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              113
_journal_page_last               120
_journal_volume                  607
_journal_year                    1992
_chemical_formula_structural     'Nb P O5'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate'
_space_group_IT_number           85
_symmetry_Int_Tables_number      85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.3907(4)
_cell_length_b                   6.3907(4)
_cell_length_c                   4.1042(6)
_cell_volume                     167.62(3)
_cod_data_source_file            NbPO5_P4_n_DC265.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        167.62
_cod_original_sg_symbol_H-M      'P 4/n Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517720
Beitraege zum thermischen Verhalten wasserfreier Phosphate. VII: Darstellung, Struktur und thermisches Verhalten von orthorhombischem NbPO5-d
Kaiser, U.; Schmidt, G.; Glaum, R.; Gruehn, R.; Zeitschrift fuer Anorganische und Allgemeine Chemie 607 (1992) 113–120; doi:

data_1517721
_publ_section_title
;
 Beitraege zum thermischen Verhalten wasserfreier Phosphate. VII:
 Darstellung, Struktur und thermisches Verhalten von orthorhombischem
 NbPO5-d
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              113
_journal_page_last               120
_journal_volume                  607
_journal_year                    1992
_chemical_formula_structural     'Nb (P O4) O'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate'
_space_group_IT_number           33
_symmetry_Int_Tables_number      33
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   11.2875
_cell_length_b                   6.6296
_cell_length_c                   5.2871
_cell_volume                     395.642
_cod_data_source_file            NbPO5_Pna21_DC266.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        395.64
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517721
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517722
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V)'
_space_group_IT_number           85
_symmetry_Int_Tables_number      85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.3898
_cell_length_b                   6.3898
_cell_length_c                   4.1055
_cell_volume                     167.626
_diffrn_ambient_temperature      298.15
_cod_data_source_file            NbPO5_P4_n_DC267.cif
_cod_data_source_block           chateigner
_cod_depositor_comments          'add _diffrn_ambient_temperature tag'
_cod_original_cell_volume        167.63
_cod_original_sg_symbol_H-M      'P 4/n Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517722
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517723
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V)'
_space_group_IT_number           85
_symmetry_Int_Tables_number      85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.3957
_cell_length_b                   6.3957
_cell_length_c                   4.1056
_cell_volume                     167.939
_diffrn_ambient_temperature      373.15
_cod_data_source_file            NbPO5_P4_n_DC268.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        167.94
_cod_original_sg_symbol_H-M      'P 4/n Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517723
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517724
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V)'
_space_group_IT_number           85
_symmetry_Int_Tables_number      85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.4038
_cell_length_b                   6.4038
_cell_length_c                   4.1175
_cell_volume                     168.853
_diffrn_ambient_temperature      448.15
_cod_data_source_file            NbPO5_P4_n_DC269.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        168.85
_cod_original_sg_symbol_H-M      'P 4/n Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517724
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517725
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V) - Ht'
_space_group_IT_number           129
_symmetry_Int_Tables_number      129
_symmetry_space_group_name_Hall  '-P 4a 2a'
_symmetry_space_group_name_H-M   'P 4/n m m :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.4043
_cell_length_b                   6.4043
_cell_length_c                   4.1196
_cell_volume                     168.966
_diffrn_ambient_temperature      473.15
_cod_data_source_file            NbPO5_P4_nmm_DC270.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        168.97
_cod_original_sg_symbol_H-M      'P 4/n m m Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517725
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517726
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V) - Ht'
_space_group_IT_number           129
_symmetry_Int_Tables_number      129
_symmetry_space_group_name_Hall  '-P 4a 2a'
_symmetry_space_group_name_H-M   'P 4/n m m :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.4043
_cell_length_b                   6.4043
_cell_length_c                   4.1217
_cell_volume                     169.052
_diffrn_ambient_temperature      498.15
_cod_data_source_file            NbPO5_P4_nmm_DC271.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        169.05
_cod_original_sg_symbol_H-M      'P 4/n m m Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517726
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517727
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V) - Ht'
_space_group_IT_number           129
_symmetry_Int_Tables_number      129
_symmetry_space_group_name_Hall  '-P 4a 2a'
_symmetry_space_group_name_H-M   'P 4/n m m :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.4038
_cell_length_b                   6.4038
_cell_length_c                   4.1249
_cell_volume                     169.157
_diffrn_ambient_temperature      548.15
_cod_data_source_file            NbPO5_P4_nmm_DC272.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        169.16
_cod_original_sg_symbol_H-M      'P 4/n m m Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517727
Phase transition and negative thermal expansion in tetragonal Nb O P O4
Amos, T.G.; Yokochi, A.; Sleight, A.W.; Journal of Solid State Chemistry 141 (1998) 303–307; doi:

data_1517728
_publ_section_title
;
 Phase transition and negative thermal expansion in tetragonal Nb O P O4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  141
_journal_year                    1998
_chemical_formula_structural     'Nb O (P O4)'
_chemical_formula_sum            'Nb O5 P'
_chemical_name_systematic        'Niobium Oxide Phosphate(V) - Ht'
_space_group_IT_number           129
_symmetry_Int_Tables_number      129
_symmetry_space_group_name_Hall  '-P 4a 2a'
_symmetry_space_group_name_H-M   'P 4/n m m :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            2
_cell_length_a                   6.4035
_cell_length_b                   6.4035
_cell_length_c                   4.1281
_cell_volume                     169.272
_diffrn_ambient_temperature      600.15
_cod_data_source_file            NbPO5_P4_nmm_DC273.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        169.27
_cod_original_sg_symbol_H-M      'P 4/n m m Z'
_cod_original_formula_sum        'Nb1 O5 P1'
_cod_database_code               1517728
The crystal structure of niobium tetraphosphate (Nb O)2 P4 O13
Nicolaev, V.P.; Sadikov, G.G.; Lavrov, A.V.; Porai Koshits, M.A.; Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy 22 (1986) 1364–1368; doi:

data_1517729
_publ_section_title
;
 The crystal structure of niobium tetraphosphate (Nb O)2 P4 O13
;
_journal_name_full
'Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy'
_journal_page_first              1364
_journal_page_last               1368
_journal_volume                  22
_journal_year                    1986
_chemical_formula_structural     '(Nb O)2 (P4 O13)'
_chemical_formula_sum            'Nb2 O15 P4'
_chemical_name_systematic        'Bis(oxoniobium) Tetraphosphate(V)'
_space_group_IT_number           2
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                106.37(1)
_cell_angle_beta                 90.35(1)
_cell_angle_gamma                89.97(1)
_cell_formula_units_Z            2
_cell_length_a                   6.586(1)
_cell_length_b                   8.400(1)
_cell_length_c                   10.842(1)
_cell_volume                     575.48(13)
_cod_data_source_file            Nb2P4O15_P_1_DC274.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        575.48
_cod_database_code               1517729
Synthesis, structure and physical properties of Nb18P2.5O50
Xu, J.; Chen, S.C.; Ramanujachary, K.V.; Greenblatt, M.; Inorganic Chemistry 33 (1994) 267–270; doi:

data_4341103
_publ_section_title
;
 Synthesis, structure and physical properties of Nb18P2.5O50
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              267
_journal_page_last               270
_journal_volume                  33
_journal_year                    1994
_chemical_formula_structural     'Nb18 (P2.5 O50)'
_chemical_formula_sum            'Nb18 O50 P2.5'
_chemical_name_systematic        'Niobium Phosphate'
_space_group_IT_number           87
_symmetry_Int_Tables_number      87
_symmetry_space_group_name_Hall  '-I 4'
_symmetry_space_group_name_H-M   'I 4/m'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            1
_cell_length_a                   15.593(1)
_cell_length_b                   15.593(1)
_cell_length_c                   3.8282(3)
_cell_volume                     930.79(11)
_cod_data_source_file            Nb18P2_5O50_I4_m_DC275.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        930.79
_cod_database_code               4341103
"Nb2-x P3-y O12", a novel Nb(V) oxophosphate with disordered cation vacancies in a Sc2 (W O4)3 - type structure
Zah-Letho, J.J.; Verbaere, A.; Jouanneaux, A.; Taulelle, F.; Piffard, Y.; Tournoux, M.; Journal of Solid State Chemistry 116 (1995) 335–342; doi:

data_1517730
_publ_section_title
;
 "Nb2-x P3-y O12", a novel Nb(V) oxophosphate with disordered cation
 vacancies in a Sc2 (W O4)3 - type structure
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              335
_journal_page_last               342
_journal_volume                  116
_journal_year                    1995
_chemical_formula_analytical     'Nb1.91 P2.82 H0.5 (O11.89 N0.11)'
_chemical_formula_structural     'Nb1.91 P2.82 O12'
_chemical_formula_sum            'Nb1.91 O12 P2.82'
_chemical_name_systematic
;
Niobium Phosphorus Oxide (1.9/2.8/12)
;
_space_group_IT_number           60
_symmetry_Int_Tables_number      60
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   12.0819(2)
_cell_length_b                   8.6848(1)
_cell_length_c                   8.7452(1)
_cell_volume                     917.62(2)
_cod_data_source_file            Nb1_91P2_82H0.5_O12N_Pbcn_DC276.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        917.62
_cod_database_code               1517730
Preparation of cubic niobium pyrophosphate containing Nb(IV) and topotactic extraction of phosphorus atoms
Fukuoka, H.; Imoto, H.; Saito, T.; Journal of Solid State Chemistry 119 (1995) 98–106; doi:

data_1517731
_publ_section_title
;
 Preparation of cubic niobium pyrophosphate containing Nb(IV) and
 topotactic extraction of phosphorus atoms
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              98
_journal_page_last               106
_journal_volume                  119
_journal_year                    1995
_chemical_formula_structural     'Nb (P2.02 O7)'
_chemical_formula_sum            'Nb O7 P2.02'
_chemical_name_systematic
;
Niobium Phosphorus Oxide (1/2.02/7)
;
_space_group_IT_number           205
_symmetry_Int_Tables_number      205
_symmetry_space_group_name_Hall  '-P 2ac 2ab 3'
_symmetry_space_group_name_H-M   'P a -3'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   8.0830(4)
_cell_length_b                   8.0830(4)
_cell_length_c                   8.0830(4)
_cell_volume                     528.10(5)
_cod_data_source_file            Nb1P2_02O7_Pa_3_DC277.cif
_cod_data_source_block           chateigner
_cod_original_cell_volume        528.1
_cod_original_formula_sum        'Nb1 O7 P2.02'
_cod_database_code               1517731