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MnNi4H7

Alexandria ALEX

Alex-ID: agm006522945 · Space group: Pmmn (#59)

Basic Information

Formula
MnNi4H7
Alex-ID
agm006522945
Elements
3
Sites
24
Space group
Pmmn (#59)
Crystal system
orthorhombic
Volume
163.09
ų
Cell a
3.5566
Å
Cell b
3.4838
Å
Cell c
13.1624
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MnNi4H7
Mn
2.00 · 8.3%
Ni
8.00 · 33.3%
H
14.00 · 58.3%

Energy & Stability

Energy above hull
0.0646
eV/atom
Formation energy
-0.0438
eV/atom
Corrected total energy
-111.0188
eV
Raw total energy
-111.0188
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0525
eV
DOS at Fermi level
5.9509
Total magnetisation
9.3448
μB

Additional Information

Prototype ID

AB4C7_217_spg31

Decomposition

MnNi4H5 NiH4 MnH2

Computed at

2024-04-22 08:59:00.755551

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: agm006522945).

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

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm006522945
data_agm006522945
_cell_length_a     3.55659
_cell_length_b     3.48383
_cell_length_c     13.16237
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       163.08923
_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
  Mn1 Mn 0.26701 0.00000 0.00000 1.00000
  Mn2 Mn 0.73299 0.50000 0.50000 1.00000
  Ni1 Ni 0.26077 0.00000 0.60085 1.00000
  Ni2 Ni 0.25165 0.50000 0.25037 1.00000
  Ni3 Ni 0.74835 0.00000 0.24963 1.00000
  Ni4 Ni 0.73923 0.50000 0.89915 1.00000
  Ni5 Ni 0.73923 0.50000 0.10085 1.00000
  Ni6 Ni 0.26077 0.00000 0.39915 1.00000
  Ni7 Ni 0.25165 0.50000 0.74963 1.00000
  Ni8 Ni 0.74835 0.00000 0.75037 1.00000
  H1 H 0.25735 0.50000 0.38311 1.00000
  H2 H 0.74265 0.00000 0.11689 1.00000
  H3 H 0.73588 0.00000 0.62483 1.00000
  H4 H 0.26412 0.50000 0.87517 1.00000
  H5 H 0.26412 0.50000 0.12483 1.00000
  H6 H 0.73588 0.00000 0.37517 1.00000
  H7 H 0.24500 0.00000 0.73905 1.00000
  H8 H 0.75500 0.50000 0.76095 1.00000
  H9 H 0.75500 0.50000 0.23905 1.00000
  H10 H 0.24500 0.00000 0.26095 1.00000
  H11 H 0.01717 0.00000 0.50000 1.00000
  H12 H 0.98283 0.50000 0.00000 1.00000
  H13 H 0.25735 0.50000 0.61689 1.00000
  H14 H 0.74265 0.00000 0.88311 1.00000
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