Co2As2O7
Alexandria ALEXAlex-ID: agm005225731 · Space group: P-1 (#2)
Basic Information
Formula
Co2As2O7
Alex-ID
agm005225731
Elements
3
Sites
55
Space group
P-1 (#2)
Crystal system
triclinic
Volume
674.17
ų
Cell a
5.4045
Å
Cell b
7.7795
Å
Cell c
16.2025
Å
α angle
82.69
°
β angle
88.84
°
γ angle
86.21
°
Composition
Element Composition (atomic fraction)
Composition Info
Formula
Co2As2O7
Co
10.00 · 18.2%
As
10.00 · 18.2%
O
35.00 · 63.6%
Energy & Stability
Energy above hull
0.0926
eV/atom
Formation energy
-1.5194
eV/atom
Corrected total energy
-374.8384
eV
Raw total energy
-331.5183
eV
Electronic Structure
Indirect band gap
1.6325
eV
Direct band gap
1.7710
eV
DOS at Fermi level
0.0000
Total magnetisation
6.1346
μB
Additional Information
Prototype ID
A2B2C7_108_spg2
Decomposition
Co3(AsO4)2 Co(AsO3)2
Computed at
2022-12-17 13:26:13.196100
Citation
Alexandria website
https://alexandria.icams.rub.de/
Attribution
The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm005225731).
Reference
Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620
BibTeX
@article{Cavignac2026Alexandria,
author = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
and Marques, Miguel A. L.},
title = {{AI}-Driven expansion and application of the {A}lexandria database},
journal = {Journal of Physics: Materials},
year = {2026},
volume = {9},
number = {2},
pages = {025014},
doi = {10.1088/2515-7639/ae6620},
url = {https://doi.org/10.1088/2515-7639/ae6620}
}3D Crystal Structure Rendering
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Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm005225731
data_agm005225731
_cell_length_a 5.40455
_cell_length_b 7.77952
_cell_length_c 16.20254
_cell_angle_alpha 82.68617
_cell_angle_beta 88.83768
_cell_angle_gamma 86.21380
_cell_volume 674.16671
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Co1 Co 0.65948 0.78262 0.06306 1.00000
Co2 Co 0.34052 0.21738 0.93694 1.00000
Co3 Co 0.39814 0.25986 0.26083 1.00000
Co4 Co 0.60186 0.74014 0.73917 1.00000
Co5 Co 0.22658 0.60861 0.45983 1.00000
Co6 Co 0.77342 0.39139 0.54017 1.00000
Co7 Co 0.99491 0.03267 0.66341 1.00000
Co8 Co 0.00509 0.96733 0.33659 1.00000
Co9 Co 0.82991 0.39767 0.86652 1.00000
Co10 Co 0.17009 0.60233 0.13348 1.00000
As1 As 0.51528 0.73233 0.27370 1.00000
As2 As 0.48472 0.26767 0.72630 1.00000
As3 As 0.28894 0.17718 0.47419 1.00000
As4 As 0.71106 0.82282 0.52581 1.00000
As5 As 0.12332 0.61449 0.67059 1.00000
As6 As 0.87668 0.38551 0.32941 1.00000
As7 As 0.90375 0.97104 0.87193 1.00000
As8 As 0.09625 0.02896 0.12807 1.00000
As9 As 0.67917 0.36238 0.07944 1.00000
As10 As 0.32083 0.63762 0.92056 1.00000
O1 O 0.43629 0.74157 0.16977 1.00000
O2 O 0.56371 0.25843 0.83023 1.00000
O3 O 0.21319 0.15907 0.37275 1.00000
O4 O 0.78681 0.84093 0.62725 1.00000
O5 O 0.05942 0.54345 0.57731 1.00000
O6 O 0.94058 0.45655 0.42269 1.00000
O7 O 0.78538 0.95398 0.77532 1.00000
O8 O 0.21462 0.04602 0.22468 1.00000
O9 O 0.62733 0.32886 0.97891 1.00000
O10 O 0.37267 0.67114 0.02109 1.00000
O11 O 0.59184 0.50294 0.29522 1.00000
O12 O 0.40816 0.49706 0.70478 1.00000
O13 O 0.50000 0.00000 0.50000 1.00000
O14 O 0.17956 0.83067 0.86791 1.00000
O15 O 0.82044 0.16933 0.13209 1.00000
O16 O 0.85957 0.53544 0.08024 1.00000
O17 O 0.14043 0.46456 0.91976 1.00000
O18 O 0.76582 0.84189 0.28148 1.00000
O19 O 0.23418 0.15811 0.71852 1.00000
O20 O 0.44863 0.35745 0.47740 1.00000
O21 O 0.55137 0.64255 0.52260 1.00000
O22 O 0.26010 0.80862 0.67443 1.00000
O23 O 0.73990 0.19138 0.32557 1.00000
O24 O 0.03581 0.16549 0.88038 1.00000
O25 O 0.96419 0.83451 0.11962 1.00000
O26 O 0.58323 0.62317 0.85997 1.00000
O27 O 0.41677 0.37683 0.14003 1.00000
O28 O 0.29382 0.08227 0.04809 1.00000
O29 O 0.70618 0.91773 0.95191 1.00000
O30 O 0.09596 0.44009 0.25475 1.00000
O31 O 0.90404 0.55991 0.74525 1.00000
O32 O 0.95773 0.83835 0.45858 1.00000
O33 O 0.04227 0.16165 0.54142 1.00000
O34 O 0.72083 0.24632 0.65458 1.00000
O35 O 0.27917 0.75368 0.34542 1.00000
