基础信息
化学式
Ta14(CuS8)3
MP-ID
mp-676854
元素数
3
位点数
41
密度
7.8663
g/cm³
体积
737.46
ų
晶胞参数 a
6.6684
Å
晶胞参数 b
8.8008
Å
晶胞参数 c
12.9738
Å
α 角
92.28
°
β 角
98.01
°
γ 角
101.34
°
空间群
P1
点群
1
晶体系统
Triclinic
Bravais 格子
aP
稳定性
Yes
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 |
|---|---|---|---|
| 6.90 | 12.8163 | 7.8 | (0,0,1) |
| 10.28 | 8.6082 | 2.2 | (0,1,0) |
| 11.98 | 7.3862 | 3.9 | (0,1,-1) |
| 12.78 | 6.9277 | 1.6 | (0,1,1) |
| 13.70 | 6.4639 | 1.5 | (1,0,0) |
| 13.82 | 6.4082 | 100.0 | (0,0,2) |
| 15.37 | 5.7656 | 2.6 | (1,-1,0) |
| 16.26 | 5.4514 | 2.1 | (1,0,1) |
| 16.30 | 5.4397 | 4.6 | (1,-1,-1) |
| 17.41 | 5.0935 | 3.5 | (1,-1,1) |
| 17.82 | 4.9780 | 1.3 | (0,1,2) |
| 17.97 | 4.9369 | 1.9 | (1,0,-2) |
| 19.79 | 4.4863 | 1.8 | (1,-1,-2) |
| 20.97 | 4.2354 | 1.3 | (1,1,1) |
| 21.62 | 4.1106 | 1.2 | (1,-1,2) |
| 22.59 | 3.9367 | 1.6 | (0,1,-3) |
| 23.23 | 3.8296 | 1.7 | (1,-2,-1) |
| 23.61 | 3.7681 | 1.1 | (1,-2,1) |
| 24.83 | 3.5863 | 1.6 | (1,-1,-3) |
| 26.69 | 3.3406 | 1.0 | (1,0,3) |
| 27.05 | 3.2969 | 1.9 | (1,-1,3) |
| 27.84 | 3.2041 | 24.0 | (0,0,4) |
| 30.26 | 2.9534 | 1.1 | (1,-2,-3) |
| 31.02 | 2.8828 | 30.8 | (2,-2,0) |
能量属性
形成能/原子
-1.30115
eV/atom
能量/原子
-8.07510
eV/atom
凸包距离
0.0000
eV/atom
未修正能量
-23.2283
eV/atom
体积/原子
17.99
ų
c/a 比
1.9456
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
0.0000
μB
磁有序
NM
磁性位点数
0
磁化强度/体积
0.000000
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 · 0.585
元素家族
Metalloid-Nonmetal
溶质分数
0.415
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
0.8717
高熵判据(>1.0 视为高熵)
混合熵 ΔS
7.2475
J/mol·K
Ω 参数
0.3289
Ω > 1.1 利于固溶体形成
原子尺寸错配 δr
16.827%
δr < 6.6% 利于单相固溶
电负性差 Δχ
0.5069
越小混合越稳定
VEC
6.024
价电子浓度,影响相稳定性
混合焓 ΔH_mix
-31.952
kJ/mol 且负值为放热混合
熵归一化
0.7935
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-676854
参考引用
The crystal structure and related material properties of Ta14(CuS8)3 were obtained from the Materials Project database (MP-ID: mp-676854, 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_Ta14(CuS8)3
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 6.66841456
_cell_length_b 8.80076852
_cell_length_c 12.97376360
_cell_angle_alpha 92.27565029
_cell_angle_beta 98.01424200
_cell_angle_gamma 101.34467718
_symmetry_Int_Tables_number 1
_chemical_formula_structural Ta14(CuS8)3
_chemical_formula_sum 'Ta14 Cu3 S24'
_cell_volume 737.45689653
_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
Ta Ta0 1 0.05872635 0.02231338 0.24362760 1.0
Ta Ta1 1 0.40742791 0.36270317 0.24582652 1.0
Ta Ta2 1 0.56927207 0.02811946 0.24234000 1.0
Ta Ta3 1 0.85513760 0.35298647 0.00066872 1.0
Ta Ta4 1 0.89769976 0.36297747 0.24935246 1.0
Ta Ta5 1 0.72722840 0.70007452 0.24739766 1.0
Ta Ta6 1 0.76606798 0.30551997 0.75040868 1.0
Ta Ta7 1 0.23226526 0.69346963 0.24994031 1.0
Ta Ta8 1 0.27352368 0.30101571 0.75247166 1.0
Ta Ta9 1 0.09934638 0.63708839 0.75107614 1.0
Ta Ta10 1 0.14530826 0.64710666 0.00009117 1.0
Ta Ta11 1 0.43369721 0.97344327 0.75758648 1.0
Ta Ta12 1 0.59535358 0.63654025 0.75418367 1.0
Ta Ta13 1 0.93825656 0.97611002 0.75640323 1.0
Cu Cu14 1 0.79536407 0.71862153 0.46322172 1.0
Cu Cu15 1 0.20330368 0.28520443 0.53538823 1.0
Cu Cu16 1 0.37570594 0.94628917 0.53698522 1.0
S S17 1 0.17028164 0.06487407 0.62946821 1.0
S S18 1 0.25110974 0.09685604 0.87694523 1.0
S S19 1 0.51599204 0.40691811 0.62887915 1.0
S S20 1 0.68184853 0.07093055 0.63273625 1.0
S S21 1 0.58341787 0.42914790 0.87653760 1.0
S S22 1 0.75157698 0.10124696 0.87933927 1.0
S S23 1 0.59079308 0.24052915 0.11956077 1.0
S S24 1 0.65740158 0.26095195 0.36745578 1.0
S S25 1 0.84103950 0.73943158 0.63439731 1.0
S S26 1 0.00557489 0.40490222 0.62932386 1.0
S S27 1 0.91157611 0.76041560 0.87578894 1.0
S S28 1 0.09096128 0.42296418 0.87440368 1.0
S S29 1 0.90859802 0.57711722 0.12557378 1.0
S S30 1 0.08828644 0.24042462 0.12493881 1.0
S S31 1 0.99312327 0.59529417 0.37130625 1.0
S S32 1 0.15840513 0.26039884 0.36483282 1.0
S S33 1 0.34098316 0.73246797 0.63188037 1.0
S S34 1 0.40910120 0.75960823 0.87919574 1.0
S S35 1 0.24837273 0.89842637 0.12174155 1.0
S S36 1 0.41604266 0.57094805 0.12391663 1.0
S S37 1 0.32497419 0.93186248 0.36556489 1.0
S S38 1 0.48408082 0.59232555 0.37097365 1.0
S S39 1 0.74868286 0.90270880 0.12182927 1.0
S S40 1 0.82442661 0.93780087 0.36963972 1.0
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