基础信息
化学式
Nb15IrS32
MP-ID
mp-675380
元素数
3
位点数
48
密度
4.3910
g/cm³
体积
987.74
ų
晶胞参数 a
8.9955
Å
晶胞参数 b
9.0157
Å
晶胞参数 c
13.6421
Å
α 角
106.25
°
β 角
106.36
°
γ 角
98.51
°
空间群
P1
点群
1
晶体系统
Triclinic
Bravais 格子
aP
稳定性
No
堆积分数
-
X 射线衍射
衍射图谱
横轴为 2θ (°),纵轴为相对强度,Cu Kα , λ=1.5418 Å
衍射峰(Top 24)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 7.18 | 12.3149 | 1.3 | (0,0,1) |
| 10.58 | 8.3653 | 1.2 | (1,0,0) |
| 14.38 | 6.1575 | 100.0 | (0,0,2) |
| 29.00 | 3.0787 | 2.1 | (0,0,4) |
| 30.26 | 2.9534 | 6.1 | (1,-3,1) |
| 30.32 | 2.9476 | 6.5 | (3,-1,-1) |
| 30.42 | 2.9389 | 6.6 | (2,2,-2) |
| 33.63 | 2.6650 | 27.9 | (1,-3,-1) |
| 33.68 | 2.6608 | 1.8 | (1,-3,3) |
| 33.69 | 2.6601 | 2.0 | (3,-1,-3) |
| 33.73 | 2.6573 | 28.3 | (3,-1,1) |
| 33.79 | 2.6530 | 2.0 | (2,2,0) |
| 33.80 | 2.6516 | 28.5 | (2,2,-4) |
| 42.37 | 2.1335 | 10.1 | (1,-3,-3) |
| 42.43 | 2.1305 | 10.4 | (3,-1,-5) |
| 42.46 | 2.1292 | 10.0 | (1,-3,5) |
| 42.49 | 2.1277 | 10.3 | (3,-1,3) |
| 42.51 | 2.1265 | 10.3 | (2,2,2) |
| 42.54 | 2.1251 | 10.3 | (2,2,-6) |
| 44.12 | 2.0525 | 5.7 | (0,0,6) |
| 53.74 | 1.7057 | 6.6 | (4,-4,0) |
| 53.91 | 1.7007 | 6.7 | (1,5,-3) |
| 54.03 | 1.6973 | 7.1 | (5,1,-3) |
| 54.44 | 1.6854 | 6.6 | (3,-1,-7) |
能量属性
形成能/原子
-1.26985
eV/atom
能量/原子
-7.36891
eV/atom
凸包距离
0.0404
eV/atom
未修正能量
-7.0336
eV/atom
体积/原子
20.58
ų
c/a 比
1.5165
电子属性
金属性
金属
带隙
0
eV
直接带隙
No
CBM
N/A
eV
磁性属性
磁性
No
总磁矩
0.0328
μB
磁有序
NM
磁性位点数
0
磁化强度/体积
0.000030
μB/ų
弹性属性
弹性数据暂不开放
特征分析
元素组成(原子分数)
组成信息
主元 / 基质元素
S · 0.667
元素家族
Metalloid-Nonmetal
溶质分数
0.333
间隙分数
0.000
综合指标雷达(归一化)
元素类别占比
混合熵 ΔS/R
0.7144
高熵判据(>1.0 视为高熵)
混合熵 ΔS
5.9399
J/mol·K
Ω 参数
0.2331
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
17.097%
δr < 6.6% 利于单相固溶
电负性差 Δχ
0.4521
越小混合越稳定
VEC
5.750
价电子浓度,影响相稳定性
混合焓 ΔH_mix
-29.953
kJ/mol 且负值为放热混合
熵归一化
0.6503
固溶体倾向
0
相趋势
AM
关联任务
引用参考
Materials Project 官方页面
https://materialsproject.org/materials/mp-675380
参考引用
The crystal structure and related material properties of Nb15IrS32 were obtained from the Materials Project database (MP-ID: mp-675380, database version v2026.04.13).
文献引用
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
晶体结构 3D 渲染
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样式: Ball & Stick
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原始 CIF 数据
# generated using pymatgen
data_Nb15IrS32
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 8.99552700
_cell_length_b 9.01565785
_cell_length_c 13.64205957
_cell_angle_alpha 106.25482035
_cell_angle_beta 106.36171772
_cell_angle_gamma 98.51252986
_symmetry_Int_Tables_number 1
_chemical_formula_structural Nb15IrS32
_chemical_formula_sum 'Nb15 Ir1 S32'
_cell_volume 987.74311451
_cell_formula_units_Z 1
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
Nb Nb0 1 0.01353100 0.02256600 0.00194200 1.0
Nb Nb1 1 0.73210300 0.25192400 0.99862600 1.0
Nb Nb2 1 0.00191500 0.47388200 0.50261300 1.0
Nb Nb3 1 0.37419100 0.13376200 0.99882700 1.0
Nb Nb4 1 0.72464000 0.75467600 0.49974700 1.0
Nb Nb5 1 0.49931500 0.49052700 0.00002600 1.0
Nb Nb6 1 0.14052400 0.37065600 0.00028000 1.0
Nb Nb7 1 0.24477800 0.72231100 0.99847900 1.0
Nb Nb8 1 0.49984100 0.03003200 0.49864200 1.0
Nb Nb9 1 0.86114300 0.60127800 0.99744200 1.0
Nb Nb10 1 0.11283900 0.86696900 0.50277400 1.0
Nb Nb11 1 0.25145600 0.25075000 0.49858600 1.0
Nb Nb12 1 0.88438500 0.11310500 0.49993200 1.0
Nb Nb13 1 0.62731600 0.89919700 0.00071800 1.0
Nb Nb14 1 0.61199000 0.39538800 0.49924200 1.0
Ir Ir15 1 0.39797700 0.61223400 0.50032800 1.0
S S16 1 0.64398700 0.15239200 0.13135400 1.0
S S17 1 0.73430300 0.48561200 0.38003700 1.0
S S18 1 0.39973400 0.39787700 0.13208600 1.0
S S19 1 0.65123000 0.65302300 0.63577200 1.0
S S20 1 0.73105400 0.98390300 0.87409600 1.0
S S21 1 0.01764000 0.27446200 0.12426600 1.0
S S22 1 0.46753700 0.73225200 0.37616600 1.0
S S23 1 0.12739000 0.60548000 0.38876400 1.0
S S24 1 0.14231500 0.63920300 0.12584900 1.0
S S25 1 0.39452800 0.87597500 0.60805500 1.0
S S26 1 0.22496400 0.98070200 0.37491500 1.0
S S27 1 0.47344100 0.22557900 0.86646400 1.0
S S28 1 0.76816900 0.52162700 0.13163200 1.0
S S29 1 0.01272000 0.76435800 0.62086900 1.0
S S30 1 0.89155000 0.89152500 0.11542400 1.0
S S31 1 0.10491500 0.10148600 0.86698100 1.0
S S32 1 0.15423900 0.14156800 0.62597000 1.0
S S33 1 0.84892600 0.84469400 0.37273400 1.0
S S34 1 0.51925600 0.76905900 0.12100500 1.0
S S35 1 0.97434500 0.22173200 0.36964400 1.0
S S36 1 0.22862300 0.47035600 0.86709200 1.0
S S37 1 0.76659300 0.02619200 0.62610700 1.0
S S38 1 0.89552200 0.39126900 0.62502200 1.0
S S39 1 0.60774500 0.11238500 0.37647600 1.0
S S40 1 0.85486400 0.34845600 0.87472000 1.0
S S41 1 0.98198400 0.73183000 0.88380300 1.0
S S42 1 0.26870300 0.01456300 0.12051300 1.0
S S43 1 0.52456000 0.28121900 0.63088500 1.0
S S44 1 0.35163700 0.35325500 0.36794100 1.0
S S45 1 0.60542100 0.60916200 0.87940300 1.0
S S46 1 0.27895900 0.52556300 0.62303300 1.0
S S47 1 0.35348000 0.85423000 0.87899700 1.0
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