Spectroscopy — Synthesis and structure of a non-van-der-Waals two-dimensional coordination polymer with superconductivity

Measurement evidence

Spectroscopy

Synthesis and structure of a non-van-der-Waals two-dimensional coordination polymer with superconductivity · Pan Z., Huang X., Fan Y. et al. · Nature Communications · 2024 · 9342

2 measurement groups · 3 results

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

Raman spectroscopy and infrared comparison

Infrared spectroscopy Raman spectroscopy

Cu3BHT micro-crystal array / multicrystalline film · Thin Film

Raman collected with a Horiba spectrometer using 532 nm laser excitation; SI compares microcrystal and previously reported film spectra.

Context: pristine Cu3BHT microcrystals compared with prior film samples
Measurement source: 7 · Methods · Supplementary Fig. 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
BHT stretching vibration signal disappearance	BHT stretching vibration at 2490 cm-1 disappears in Cu3BHT Raman/IR comparison	—	—	Text Rounded Reported	3 · Suppl. Note 4 · Supplementary Fig. 5

UPS and XPS

X-ray photoelectron spectroscopy Ultraviolet photoelectron spectroscopy

Cu3BHT micro-crystal array / multicrystalline film · Thin Film

Kratos AXIS Ultra under 3 x 10^-9 Torr; He I UPS at 21.11 eV and monochromatic Al Kalpha XPS at 1486.6 eV; binding energies calibrated to C1s 284.8 eV.

Temperature: 300 for UPS
Atmosphere: ultra-high vacuum
Context: pristine Cu3BHT microcrystal film
Measurement source: 7 · Methods · Figure 2f; Supplementary Fig. 19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
UPS Fermi-level evidence	Fermi level intersects the conduction band	—	—	Qualitative Qualitative	4 · Single crystal device characterization · Figure 2f
Cu+ to Cu2+ ratioMarked as a best value within this paper	approximately 2:1	—	approximately	Text Approximate	5 · Superconductivity characterization and magnetic properties · Supplementary Fig. 19