Mg6Si5

Traditional Materials TRA

MP-ID: mp-1073876 · Space group: Cm (#8)

Materials Project API

Basic Information

Formula

Mg6Si5

MP-ID

mp-1073876

Elements

Sites

Density

2.2135

g/cm³

Volume

429.49

Å³

Cell a

15.5339

Cell b

15.5339

Cell c

7.0259

α Angle

88.69

β Angle

88.69

γ Angle

14.68

Space Group

Point Group

Crystal System

Monoclinic

Bravais Lattice

Stability

Packing Fraction

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
5.74	15.4025	100.0	(1,1,0)
11.49	7.7013	30.7	(2,2,0)
12.60	7.0240	4.2	(0,0,1)
13.98	6.3358	13.4	(1,1,-1)
21.20	4.1914	3.1	(3,3,1)
22.59	3.9363	5.0	(1,0,0)
23.10	3.8506	5.0	(4,4,0)
24.04	3.7019	17.9	(2,1,0)
25.36	3.5120	1.7	(0,0,2)
25.89	3.4414	2.7	(1,1,2)
25.91	3.4382	3.7	(1,0,1)
26.13	3.4099	2.4	(4,4,1)
26.16	3.4071	2.3	(1,1,-2)
26.72	3.3365	3.3	(3,2,0)
27.14	3.2862	3.1	(2,1,1)
27.33	3.2637	3.8	(2,1,-1)
27.67	3.2237	4.7	(2,2,2)
28.17	3.1679	4.7	(2,2,-2)
28.99	3.0805	1.6	(5,5,0)
29.49	3.0285	10.6	(3,2,1)
30.33	2.9473	5.8	(4,3,0)
30.50	2.9305	1.4	(3,3,2)
31.19	2.8680	1.7	(3,3,-2)
31.44	2.8454	1.1	(5,5,1)

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Energy Properties

Formation Energy/atom

0.16756

eV/atom

Energy/atom

-3.18784

eV/atom

Energy above Hull

0.2564

eV/atom

Uncorrected Energy

-3.2201

eV/atom

Volume/atom

19.52

Å³

c/a Ratio

0.4523

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0001

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000000

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Mg · 0.545

Element Family

N/A

Solute Fraction

0.455

Interstitial Fraction

0.455

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.681

Family

Mg-based Alloy

Matrix Element

Mg · 0.545

Related Tasks

Related computation task IDs (2)

aaacjcsf aaadzmmb

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1073876

Reference Citation

The crystal structure and related material properties of Mg6Si5 were obtained from the Materials Project database (MP-ID: mp-1073876, database version v2026.04.13).

Literature Citation

Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0

3D Crystal Structure Rendering

Loading 3D structure…

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Raw CIF Data

# generated using pymatgen
data_Mg6Si5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.53393393
_cell_length_b   15.53393393
_cell_length_c   7.02591244
_cell_angle_alpha   88.68592278
_cell_angle_beta   88.68592278
_cell_angle_gamma   14.67867175
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg6Si5
_chemical_formula_sum   'Mg12 Si10'
_cell_volume   429.48941087
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.72108900  0.72108900  0.95047300  1.0
  Mg  Mg1  1  0.99392200  0.99392200  0.51732300  1.0
  Mg  Mg2  1  0.56564800  0.56564800  0.69856100  1.0
  Mg  Mg3  1  0.41935400  0.41935400  0.32936900  1.0
  Mg  Mg4  1  0.83642800  0.83642800  0.38596600  1.0
  Mg  Mg5  1  0.15837000  0.15837000  0.70831100  1.0
  Mg  Mg6  1  0.52846600  0.52846600  0.20775800  1.0
  Mg  Mg7  1  0.45699400  0.45699400  0.83291300  1.0
  Mg  Mg8  1  0.27695800  0.27695800  0.71811300  1.0
  Mg  Mg9  1  0.17361600  0.17361600  0.22305400  1.0
  Mg  Mg10  1  0.72470600  0.72470600  0.48522200  1.0
  Mg  Mg11  1  0.27265400  0.27265400  0.21507400  1.0
  Si  Si12  1  0.96604600  0.96604600  0.14337300  1.0
  Si  Si13  1  0.01929600  0.01929600  0.89363400  1.0
  Si  Si14  1  0.63221700  0.63221700  0.98957700  1.0
  Si  Si15  1  0.34972600  0.34972600  0.01612900  1.0
  Si  Si16  1  0.90818000  0.90818000  0.64445000  1.0
  Si  Si17  1  0.08421100  0.08421100  0.40070300  1.0
  Si  Si18  1  0.63376300  0.63376300  0.43232200  1.0
  Si  Si19  1  0.36125700  0.36125700  0.65062200  1.0
  Si  Si20  1  0.89470700  0.89470700  0.00682700  1.0
  Si  Si21  1  0.08793000  0.08793000  0.04654700  1.0

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