cMOF Evidence Base
Electrical Transport — Stabilization of cyclic water tetramers and dimers in the crystal host of 2D coordination networks: electrical conductivity and dielectric studies

Measurement evidence

Electrical Transport

Stabilization of cyclic water tetramers and dimers in the crystal host of 2D coordination networks: electrical conductivity and dielectric studies · Dutta B., Ghosh S.R., Ray A. et al. · New Journal of Chemistry · 2020 · 15857-15870

7 measurement groups · 104 results

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

frequency-dependent AC conductivity derived from LCR/electrical measurements

Electrical conductivity

compound 1 pressed pellet · Pellet

ln sigma_ac vs ln omega at 293-373 K

Temperature
293-373
Atmosphere
air; dark inferred from electrical protocol
Geometry
pressed pellet between copper electrodes
Context
pristine hydrated framework pellet
Measurement source
12 · Ac conductivity · Fig. 11
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ln sigma_ac visual rangeapproximately -16 to -9 over ln omega 8-17——Visual Estimate
Approximate		12 · Ac conductivity · Fig. 11
ac conductivity trendconductivity increases with frequency; slope steeper beyond 10 kHz——Text
Qualitative		12 · Ac conductivity · Fig. 11

frequency-dependent AC conductivity derived from LCR/electrical measurements

Electrical conductivity

compound 2 pressed pellet · Pellet

ln sigma_ac vs ln omega at 293-373 K

Temperature
293-373
Atmosphere
air; dark inferred from electrical protocol
Geometry
pressed pellet between copper electrodes inferred
Context
pristine hydrated framework pellet
Measurement source
12 · Ac conductivity · Fig. S13
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ln sigma_ac visual rangeapproximately -19 to -11 over ln omega 8-17——Visual Estimate
Approximate		13 · Fig. S13 · Fig. S13

complex impedance spectroscopy (CIS), Cole-Cole fitting with EC Lab software

Impedance spectroscopy

compound 1 pressed pellet · Pellet

500 Hz-10 MHz, 293-373 K; Maxwell-Wagner equivalent circuit with Rg, Cg, Rgb, Cgb

Temperature
293-373
Atmosphere
air; dark inferred from electrical protocol
Geometry
pressed pellet between copper electrodes
Context
pristine hydrated framework pellet
Measurement source
11 · Complex impedance study · Fig. 9; Table S4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
compound 1 grain capacitance at 293 K12.53——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 293 K0.6647——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 293 K2593——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 293 K0.455——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 293 K0.0178——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 303 K12.54——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 303 K14.4——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 303 K841.2——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 303 K217.2——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 303 K0.0788——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 313 K12.5——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 313 K17.19——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 313 K642.4——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 313 K640.2——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 313 K0.221——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 323 K13.91——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 323 K0.158——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 323 K386——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 323 K2.124——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 323 K0.194——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 333 K20.51——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 333 K31.82——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 333 K36.18——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 333 K15.53——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 333 K0.267——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 343 K150.3——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 343 K13.66——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 343 K1.248——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 343 K1458——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 343 K0.2663——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 353 K23.22——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 353 K26.73——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 353 K11.25——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 353 K11.52——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 353 K0.289——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 363 K25.94——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 363 K23.91——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 363 K18.22——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 363 K17.86——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 363 K0.254——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain capacitance at 373 K22.83——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary capacitance at 373 K27.37——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain resistance at 373 K14.74——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 grain-boundary resistance at 373 K13.51——SI Table
Exact Reported		14 · Table S4 · Table S4
compound 1 equivalent-circuit fitting goodness chi2 at 373 K0.235——SI Table
Exact Reported		14 · Table S4 · Table S4
impedance/conduction trenddc conduction increases with temperature; semiconducting NTCR behaviour——Text
Qualitative		12 · Complex impedance study · Fig. 10
CIS frequency range500 Hz-10 MHz——Text
Exact Reported		11 · Complex impedance study
CIS temperature range293-373 K——Text
Exact Reported		11 · Complex impedance study

complex impedance spectroscopy (CIS), Cole-Cole fitting with EC Lab software

Impedance spectroscopy

compound 2 pressed pellet · Pellet

500 Hz-10 MHz, 293-373 K; Maxwell-Wagner equivalent circuit with Rg, Cg, Rgb, Cgb

Temperature
293-373
Atmosphere
air; dark inferred from electrical protocol
Geometry
pressed pellet between copper electrodes inferred
Context
pristine hydrated framework pellet
Measurement source
12 · Complex impedance study · Fig. S11; Table S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
compound 2 grain capacitance at 293 K19.25——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 293 K77.51——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 293 K63.35——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 293 K1.148——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 293 K0.05888——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 303 K20.93——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 303 K60.87——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 303 K32.95——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 303 K1.054——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 303 K0.05582——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 313 K19.78——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 313 K71.04——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 313 K39.3——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 313 K0.825——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 313 K0.05729——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 323 K19.22——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 323 K76.85——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 323 K76.85——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 323 K1.475——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 323 K0.06285——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 333 K97.01——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 333 K17.95——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 333 K0.838——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 333 K81.44——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 333 K0.06283——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 343 K15.83——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 343 K283——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 343 K0.129——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 343 K0.053——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 343 K0.02668——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 353 K18.52——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 353 K124.4——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 353 K81.53——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 353 K0.581——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 353 K0.0998——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 363 K19.87——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 363 K81.49——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 363 K51.42——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 363 K1.0——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 363 K0.07——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain capacitance at 373 K42.28——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary capacitance at 373 K28.58——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain resistance at 373 K1.401——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 grain-boundary resistance at 373 K11.55——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 equivalent-circuit fitting goodness chi2 at 373 K0.0701——SI Table
Exact Reported		14 · Table S5 · Table S5
compound 2 Cole-Cole fittingCole-Cole plots fitted using EC Lab to determine Rg, Cg, Rgb and Cgb——Text
Qualitative		12 · Complex impedance study · Fig. S11; Table S5

pellet fabrication for dielectric/impedance/conductivity measurements

Electrical conductivity

compound 1 pressed pellet · Pellet

pressed pellet placed between two circular copper electrodes; measurements in air and dark

Temperature
293-373
Atmosphere
air; dark conditions
Geometry
1.0 mm thick, 8.0 mm diameter pellet between circular copper electrodes
Context
pristine hydrated framework pellet
Measurement source
4 · Device fabrication and characterization
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet diameter8.0 mm——Text
Exact Reported		4 · Device fabrication and characterization
pellet thickness1.0 mm——Text
Exact Reported		4 · Device fabrication and characterization
pellet press pressure5.0 tons per inch2——Text
Exact Reported		4 · Device fabrication and characterization

dielectric permittivity by LCR meter, Hioki IM3536

compound 1 pressed pellet · Pellet

frequency range 500 Hz-5 MHz; temperature range 293-373 K; air and dark conditions

Temperature
293-373
Atmosphere
air; dark
Geometry
pressed pellet between copper electrodes
Context
pristine hydrated framework pellet
Measurement source
4 · Device fabrication and characterization · Fig. 8
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
epsilon double-prime visual rangeapproximately 0-38 across 293-373 K and ln omega 8-17——Visual Estimate
Approximate		11 · Dielectric studies · Fig. 8b
epsilon prime visual rangeapproximately 20-35 across 293-373 K and ln omega 8-17——Visual Estimate
Approximate		11 · Dielectric studies · Fig. 8a
dielectric trendepsilon prime and epsilon double-prime decrease with increasing frequency; low-frequency epsilon prime increases with temperature——Text
Qualitative		10 · Dielectric studies · Fig. 8

dielectric permittivity by LCR meter, Hioki IM3536

compound 2 pressed pellet · Pellet

compound 2 dielectric behaviour reported as similar; main text assigns e prime plot to Fig. S10, but SI caption labels it as compound 1

Temperature
293-373
Atmosphere
air; dark inferred
Geometry
pressed pellet between copper electrodes inferred
Context
pristine hydrated framework pellet
Measurement source
11 · Dielectric studies · Fig. S10
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
dielectric trendcompound 2 exhibits similar frequency/temperature behaviour——Text
Qualitative		11 · Dielectric studies · Fig. S10