Diffraction Structure — Redox-Active 1D Coordination Polymers of Iron-Sulfur Clusters

Measurement evidence

Diffraction Structure

Redox-Active 1D Coordination Polymers of Iron-Sulfur Clusters · Horwitz N.E., Xie J., Filatov A.S. et al. · Journal of the American Chemical Society · 2019 · 3940-3951

3 measurement groups · 15 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Small-angle X-ray scattering (SAXS)

Compound 2 in DMF solution · Unknown

Near-saturated solution of 2 in dry DMF, approximately 2 mg/mL, filtered through 0.2 um PET; ambient temperature.

Temperature
ambient
Atmosphere
sealed under N2
Geometry
1.0 mm OD x 0.01 mm wall borosilicate glass tube
Context
Solution persistence of pristine 2 chains.
Measurement source
3943, 3947 · Solution Behavior; Experimental Section - Small Angle X-ray Scattering · Figure 4; Figure S23
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
SAXS linear fit R2 for DMF solution of 2R2 = 0.99Figure Axis
Exact Reported
3943 · Solution Behavior · Figure 4
SAXS power-law slope for DMF solution of 2-1.68 +/- 0.02+/- 0.02Figure Axis
Exact Reported
3943 · Solution Behavior · Figure 4

Synchrotron XRPD, simulated annealing and GSAS-I Rietveld refinement

Compound 1 as-synthesized black powder · Powder

11-BM/APS data at 295 K; PX2A/SOLEIL 2D data used for confirmation.

Temperature
295
Atmosphere
sealed capillary under N2
Geometry
Powder in borosilicate capillary
Context
Pristine framework structure assignment.
Measurement source
S14 · X-ray Powder Diffraction · Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Compound 1 unit cell a from 11-BM/APS refinement11.9266(3) Angstrom0.0003 AngstromSI Table
Exact Reported
S14 · X-ray Powder Diffraction · Table S2
Compound 1 unit cell c from 11-BM/APS refinement19.8484(5) Angstrom0.0005 AngstromSI Table
Exact Reported
S14 · X-ray Powder Diffraction · Table S2
Compound 1 adjacent-chain axis-to-axis separation11.93 AngstromText
Rounded Reported
3942 · Structural Determination · Figure 2
Compound 1 Fe4S4 cluster separation within chain9.92 Angstrom centroid to centroidText
Rounded Reported
3942 · Structural Determination · Figure 2
Compound 1 Rwp from 11-BM/APS Rietveld refinement0.1341SI Table
Exact Reported
S14 · X-ray Powder Diffraction · Table S2
Compound 1 space groupP 42 c m (#101)SI Table
Exact Reported
S14 · X-ray Powder Diffraction · Table S2

Synchrotron XRPD, simulated annealing and GSAS-I Rietveld refinement

Compound 2 as-synthesized black powder · Powder

11-BM/APS data at 295 K.

Temperature
295
Atmosphere
sealed capillary under N2
Geometry
Powder in borosilicate capillary
Context
Pristine framework structure assignment.
Measurement source
S16 · X-ray Powder Diffraction · Table S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Compound 2 unit cell a from 11-BM/APS refinement17.1853(2) Angstrom0.0002 AngstromSI Table
Exact Reported
S16 · X-ray Powder Diffraction · Table S3
Compound 2 unit cell c from 11-BM/APS refinement20.4819(4) Angstrom0.0004 AngstromSI Table
Exact Reported
S16 · X-ray Powder Diffraction · Table S3
Compound 2 chain separation8.59 AngstromText
Rounded Reported
3942-3943 · Structural Determination · Figure 3
Compound 2 closest Fe4S4 cluster separation within each chain10.24 AngstromText
Rounded Reported
3942-3943 · Structural Determination · Figure 3
Compound 2 Fe-S-C6H4-S-Fe dihedral angle43.5 degText
Rounded Reported
3942 · Structural Determination · Figure 3
Compound 2 Rwp from 11-BM/APS Rietveld refinement0.0768SI Table
Exact Reported
S16 · X-ray Powder Diffraction · Table S3
Compound 2 space groupI 41/a (#88:2)SI Table
Exact Reported
S16 · X-ray Powder Diffraction · Table S3