Primary studyCore evidenceTransport Physics

2D Cd(II)-MOF of Pyridyl-Imidazoquinazoline: Structure, Luminescence, and Selective Detection of TNP and Fabrication of Semiconducting Devices

Bairy G., Dey A., Dutta B. et al. · Crystal Growth and Design · 2022 · 3138-3147

1materials
4samples
3synthesis routes
9measurements
83results
6claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

CP 1 acts as a highly selective luminescent TNP sensor among 13 nitroaromatic analytes, with 99.2% quenching and a 0.275 uM LOD.

Caveat: Sensing is in acetonitrile dispersion; not an electrical sensing device.

p006 / article p.3143 · Sensing Property Toward NAEs · Figures 2-4 · Linked to 3 structured results

Phase AssignmentSupport assessment: High

Bulk CP 1 is phase-pure relative to the simulated single-crystal PXRD pattern and thermally stable up to 305 C.

Caveat: PXRD purity is qualitative; no Rietveld refinement or impurity fraction is reported.

p006 / article p.3143 · PXRD and TGA Analysis · Figure S6 · Linked to 2 structured results

Structure Property LinkSupport assessment: High

CP 1 is a 2D Cd(II)-MOF whose 2D network is extended into a 3D supramolecular aggregate by C-H...pi and pi...pi interactions.

Caveat: 3D descriptor is supramolecular packing, not a covalent/coordination 3D framework topology.

p004-p005 / article pp.3141-3142 · Structure of CP 1 · Figure 1 · Linked to 4 structured results

Structure Property LinkSupport assessment: High

Light irradiation improves charge-transfer metrics by increasing conductivity and effective carrier mobility while lowering barrier height and series resistance.

Caveat: Analysis depends on thermionic emission and SCLC model assumptions for the fabricated thin-film junction.

p007 / article p.3144 · Band Gap and Electrical Properties · Table 2 · Linked to 8 structured results

Transport MechanismSupport assessment: Medium

The paper attributes TNP quenching to combined FRET and PET, with static and dynamic quenching suggested by upward Stern-Volmer curvature.

Caveat: Mechanism is inferred from spectral overlap, orbital energies, and lifetime behaviour rather than directly isolated rate constants.

p006 / article p.3143 · Sensing Property Toward NAEs · Figures 4-5, S12, S15 · Linked to 7 structured results

Transport MechanismSupport assessment: High

The ITO/CP 1/Al device behaves as a semiconducting Schottky barrier diode with enhanced conductivity under illumination.

Caveat: Conductivity is device-level for a thin-film MS junction, not intrinsic single-crystal conductivity.

p007 / article p.3144 · Band Gap and Electrical Properties · Figures 7-12; Tables 1-2 · Linked to 6 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
CP 1; {[Cd2(5-nip)2(pdiq)2(H2O)2(CH3OH)]·H2O}nC55H42Cd2N10O16; reported framework formula {[Cd2(5-nip)2(pdiq)2(H2O)2(CH3OH)]·H2O}nCd(II) nodes: Cd1 in distorted octahedral CdO5N coordination and Cd2 in distorted pentagonal-bipyramidal CdO5N2 coordination · 5-nip = 5-nitroisophthalate; pdiq = 6-(pyridin-4-yl)-5,6-dihydrobenzo[4,5]imidazo[1,2-c]quinazoline2D · PristineTriclinic P-1 crystalline 2D Cd(II)-MOF; 5-nip and pdiq bridge Cd nodes into a 2D network, with C-H...pi and pi...pi interactions giving a 3D supramolecular aggregate.p001 / article p.3138 · Abstract

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 4 sample records
SampleForm and roleProcessing and geometrySource
CP 1 acetonitrile dispersion for fluorescence sensingresearch_0166__mat__cp1_cd_mofUnknown · Target Sample · Pristine FrameworkCP 1 dispersed in acetonitrile, typically 10 uM, with nitroaromatic explosive analytes added for sensing experiments.p006 / article p.3143 · Sensing Property Toward NAEs · Figures 2-4, S8-S15
as-synthesised yellow block-shaped CP 1 crystalsresearch_0166__mat__cp1_cd_mofSingle Crystal · Target Sample · Pristine FrameworkYellow block-shaped crystals obtained by liquid layering/diffusion over five days; single crystals collected from mother liquid for SCXRD.p003 / article p.3140 · Experimental Section - Synthesis of CP 1 · Scheme S2
as-synthesised crystalline powder CP 1research_0166__mat__cp1_cd_mofPowder · Target Sample · Pristine FrameworkBulk crystalline material from CP 1 synthesis; analysed by PXRD and TGA, including post-immersion low-pH PXRD.p006 / article p.3143 · PXRD and TGA Analysis · Figures S6-S7
ITO/CP 1/Al metal-semiconductor thin-film deviceresearch_0166__mat__cp1_cd_mofThin Film · Target Sample · Pristine FrameworkThin film of as-synthesised CP 1 grown by doctor blade method on pre-cleaned ITO-coated glass; Al electrode deposited under 10^-6 Torr; measured by two-probe source meter.pre-cleaned ITO-coated glass; aluminium top electrode · ~1 um film thickness used for dielectric calculationp015 · Device Fabrication