Spectroscopy — Host-guest molecular interaction promoted urea electrosynthesis over a precisely designed conductive metal-organic framework

Measurement evidence

Spectroscopy

Host-guest molecular interaction promoted urea electrosynthesis over a precisely designed conductive metal-organic framework · Yuan M., Chen J., Zhang H. et al. · Energy and Environmental Science · 2022 · 2084-2095

3 measurement groups · 18 results

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

FTIR and XPS

Co-PMDA-2-mbIM powder · Powder

FTIR spectra and XPS survey/high-resolution spectra comparing Co-PMDA-2-mbIM, Co-PMDA and 2-mbIM.

Atmosphere
XPS under ultrahigh vacuum
Context
target guest-loaded framework
Measurement source
p003-p004 (journal p2086-p2087) · Results and discussion · Fig. 2f-i
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
N-H stretching band evidencing 2-mbIM intercalation3747 cm-1Text
Rounded Reported
p003 (journal p2086) · Results and discussion · Fig. 2f and Fig. S3a
Co4+ 2p1/2 peak in Co-PMDA-2-mbIM796.8 eVText
Rounded Reported
p003 (journal p2086) · Results and discussion · Fig. 2i
Co4+ 2p3/2 peak in Co-PMDA-2-mbIM781.3 eVText
Rounded Reported
p003 (journal p2086) · Results and discussion · Fig. 2i

Raman, UV-vis and ZFC-FC magnetic susceptibility

Co-PMDA-2-mbIM powder · Powder

Raman lambda 532 nm; UV-vis adsorption; magnetic susceptibility under H = 500 Oe.

Context
target and pristine control comparison
Measurement source
p004-p005 (journal p2087-p2088) · Results and discussion · Fig. 3 and Fig. S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Average eg electron filling of Co-PMDA1.96Text
Rounded Reported
p005 (journal p2088) · Results and discussion · Fig. 3e and Table S2
Average eg electron filling of Co-PMDA-2-mbIM1.04Text
Rounded Reported
p005 (journal p2088) · Results and discussion · Fig. 3e and Table S2
Magnetic transition temperatureabout 31.7 KaboutText
Approximate
p005 (journal p2088) · Results and discussion · Fig. 3c
Effective paramagnetic moment of Co-PMDA5.03 muBText
Rounded Reported
p005 (journal p2088) · Results and discussion · Fig. S3b
Effective paramagnetic moment of Co-PMDA-2-mbIM4.77 muBText
Rounded Reported
p005 (journal p2088) · Results and discussion · Fig. S3b
Raman Co-O bands common to both samples672.9, 834.2, 1435.3, 1538.1, and 1591.0 cm-1Text
Rounded Reported
p004 (journal p2087) · Results and discussion · Fig. 3a
Additional UV-vis d-d* transition in Co-PMDA-2-mbIM571.9 cm-1Text
Rounded Reported
p004 (journal p2087) · Results and discussion · Fig. 3b
Weiss constant of Co-PMDA3.35 KText
Rounded Reported
p005 (journal p2088) · Results and discussion · Fig. S3b
Weiss constant of Co-PMDA-2-mbIM-21.94 KVisual Estimate
Approximate
p010 · Figure S3 · Fig. S3b

Curie-Weiss magnetic fitting and spin-state/e_g occupation calculation summarised in SI Table S2

Co-PMDA-2-mbIM powder · Powder

Measurement source
p061 · Table S2 · Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
High-spin fraction of Co-PMDA97.99%Table
Exact Reported
p061 · Table S2 · Table S2
High-spin fraction of Co-PMDA-2-mbIM41.61%Table
Exact Reported
p061 · Table S2 · Table S2
Low-spin fraction of Co-PMDA2.01%Table
Exact Reported
p061 · Table S2 · Table S2
Low-spin fraction of Co-PMDA-2-mbIM58.39%Table
Exact Reported
p061 · Table S2 · Table S2
Assigned spin-state type of Co-PMDAHSTable
Exact Reported
p061 · Table S2 · Table S2
Assigned spin-state type of Co-PMDA-2-mbIMISTable
Exact Reported
p061 · Table S2 · Table S2