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Ac2CuSi_225

Solved Structure

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Energy-R2 Fit

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Run Summary

FormulaAc2CuSi
Crystal Systemcubic
Input SG225
Solved SG225
R20.9987
Chi20.0138
Rwp/Wr3.5408
Statusaccepted
Valid Structures6
Candidates2
Total Time1m 01.8s
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Search Details

Phase 1 SGs36
Phase 2 Pairs2
Refined Structures6
Refine Failures0
Good fit found for spg=225, but skipping early stop because only 5 structures have been explored
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================================================================================
Run started: 2026-05-11 08:14:26
Input: /users/qzhu8/GitHub/TEST1/PXRD-agent/GSAS_PXRD/Ac2CuSi_225.csv
================================================================================
Per-system run log: 0510/logs/RunLog_Ac2CuSi_225.log

Using deterministic pipeline execution.
Phase 1 — rank  1/36: spg=221 | Found 2 cell(s): vol=55.9–158.1 Å³
Phase 1 — rank  2/36: spg=215 | Found 2 cell(s): vol=55.9–158.1 Å³
Phase 1 — rank  3/36: spg=207 | Found 2 cell(s): vol=55.9–158.1 Å³
Phase 1 — rank  4/36: spg=200 | Found 2 cell(s): vol=55.9–158.1 Å³
Phase 1 — rank  5/36: spg=195 | Found 2 cell(s): vol=55.9–158.1 Å³
Phase 1 — rank  6/36: spg=229 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank  7/36: spg=217 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank  8/36: spg=211 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank  9/36: spg=204 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank 10/36: spg=199 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank 11/36: spg=197 | Found 3 cell(s): vol=158.1–1265.0 Å³
Phase 1 — rank 12/36: spg=226 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 13/36: spg=225 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 14/36: spg=219 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 15/36: spg=216 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 16/36: spg=209 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 17/36: spg=202 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 18/36: spg=196 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 19/36: spg=228 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 20/36: spg=227 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 21/36: spg=210 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 22/36: spg=203 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 23/36: spg=206 | Found 2 cell(s): vol=447.3–1265.0 Å³
Phase 1 — rank 24/36: spg=224 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 25/36: spg=223 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 26/36: spg=222 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 27/36: spg=218 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 28/36: spg=208 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 29/36: spg=201 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 30/36: spg=198 | Found 1 cell(s): vol=158.1 Å³
Phase 1 — rank 31/36: spg=230 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 32/36: spg=220 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 33/36: spg=214 | Found 1 cell(s): vol=1265.0 Å³
Phase 1 — rank 34/36: spg=205 | No candidate cells found.
Phase 1 — rank 35/36: spg=213 | No candidate cells found.
Phase 1 — rank 36/36: spg=212 | No candidate cells found.
Phase 2: ranked 2 (cell, SPG) pair(s) from 36 seed SPG candidates. Volume range: 447.3–447.3 Å³ | Total candidates: 2
Phase 2 strategy: globally rank every (cell, SPG) pair by a balanced score combining relative estimated trials and relative volume (trial_weight=0.65, volume_weight=0.35), then break ties by (fewer estimated trials, smaller volume, fewer candidates), then (symmetry, SG prediction rank, missing, chi2).

Pair  WPs   SPG   Volume(Å³)  Chi2    EstTrials Missing  BalScore  Dims
--------------------------------------------------------------------------------------------------------
1     1     225   447.3       0.0002   0         3        0.030        7.648
2     1     216   447.3       0.0002   0         3        0.030        7.648


[Pair 1/2] vol=447.3 Å³, spg=225, dims=   7.648: 1 WP choices.
WP #1: spg=225, count=1148, dof=0, n_wps=3, wyckoff=[['8c'], ['4b'], ['4a']]
ID  1-1: * 16   1  225 Fm-3m          8.10 8c 4b 4a ,  vol=447.3 Å³ 0.987, -4.684, 0.001, 0.000  3.541,  0.999,  0.014, 0.1, 6.6s [best-energy-ok]
Metrics: Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, accepted=True, E=-4.6843, dE=0.0000

Final refinement results: Wr=3.5408, R2=0.9987, Chi2=0.0138
Best structure saved to 0510/cifs/Match_Ac2CuSi_225.cif
Accepted solution: spg=225, Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, E=-4.6843, dE=0.0000, 
Good fit found for spg=225, but skipping early stop because only 1 structures have been explored 

[Pair 2/2] vol=447.3 Å³, spg=216, dims=   7.648: 1 WP choices.
WP #1: spg=216, count=2, dof=0, n_wps=4, wyckoff=[['4c', '4a'], ['4d'], ['4b']]
ID  2-1: * 16   1  216 F-43m          8.10 4c 4a 4d 4b ,  vol=447.3 Å³ 0.807, -4.303, 0.029, 0.000 54.649,  0.697,  3.294, -21.5, 2.0s

[Pair 1/2] vol=447.3 Å³, spg=225, dims=   7.648: 1 WP choices.
WP #1: spg=225, count=1148, dof=0, n_wps=3, wyckoff=[['8c'], ['4b'], ['4a']]
ID  3-1: * 16   1  225 Fm-3m          8.10 8c 4b 4a ,  vol=447.3 Å³ 0.987, -4.684, 0.001, 0.000  3.541,  0.999,  0.014, 0.1, 1.6s [best-energy-ok]
Metrics: Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, accepted=True, E=-4.6843, dE=0.0000

Final refinement results: Wr=3.5408, R2=0.9987, Chi2=0.0138
Best structure saved to 0510/cifs/Match_Ac2CuSi_225.cif
Accepted solution: spg=225, Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, E=-4.6843, dE=0.0000, 
Good fit found for spg=225, but skipping early stop because only 3 structures have been explored 

[Pair 2/2] vol=447.3 Å³, spg=216, dims=   7.648: 1 WP choices.
WP #1: spg=216, count=2, dof=0, n_wps=4, wyckoff=[['4c', '4a'], ['4d'], ['4b']]
ID  4-1: * 16   1  216 F-43m          8.10 4c 4a 4d 4b ,  vol=447.3 Å³ 0.807, -4.303, 0.029, 0.000 54.649,  0.697,  3.294, -21.5, 2.0s

[Pair 1/2] vol=447.3 Å³, spg=225, dims=   7.648: 1 WP choices.
WP #1: spg=225, count=1148, dof=0, n_wps=3, wyckoff=[['8c'], ['4b'], ['4a']]
ID  5-1: * 16   1  225 Fm-3m          8.10 8c 4b 4a ,  vol=447.3 Å³ 0.987, -4.684, 0.001, 0.000  3.541,  0.999,  0.014, 0.1, 1.8s [best-energy-ok]
Metrics: Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, accepted=True, E=-4.6843, dE=0.0000

Final refinement results: Wr=3.5408, R2=0.9987, Chi2=0.0138
Best structure saved to 0510/cifs/Match_Ac2CuSi_225.cif
Accepted solution: spg=225, Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, E=-4.6843, dE=0.0000, 
Good fit found for spg=225, but skipping early stop because only 5 structures have been explored 

[Pair 2/2] vol=447.3 Å³, spg=216, dims=   7.648: 1 WP choices.
WP #1: spg=216, count=2, dof=0, n_wps=4, wyckoff=[['4c', '4a'], ['4d'], ['4b']]
ID  6-1: * 16   1  216 F-43m          8.10 4c 4a 4d 4b ,  vol=447.3 Å³ 0.807, -4.303, 0.029, 0.000 54.649,  0.697,  3.294, -21.5, 2.0s
Timing breakdown:
  1) SPG + cell inference: 0m 11.5s
  2) Structure inference: 0m 50.4s
  Total: 1m 01.8s
Best solution: spg=225, Wr=3.5408, R2=0.9987, Chi2=0.0138, score=0.0790, E=-4.6843, dE=0.0000, 
Return best result in spg=225.
Best inferred-SG score observed: 0.0790