Zhang J.-B., Li N., Gu Z.-G. et al. · Journal of the American Chemical Society · 2025 · 26674-26683
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The authors claim this work is the first preparation of a multilevel chiral semiconductive MOF thin film constructed from a tripeptide ligand for optoelectronics and circularly polarised light imaging.
Caveat: Priority/firstness claim is author-stated and not independently verified in this extraction.
main p.8, article p.26681 · Conclusions · Linked to 4 structured results
The paper describes solvent-accessible pores from the crystal structure but the supplied main/SI text does not report gas-sorption surface area or pore-size distribution values.
Caveat: Raw CIF was not provided locally; CCDC should be queued if pore metrics are needed later.
main p.3, article p.26676 · Synthesis and Sample Characterization · Figure 1g · Linked to 1 structured result
The [101]-oriented multilevel chiral CAS-4 thin film is linked to strong optical chirality and high CP photodetection response.
Caveat: Structure-property link is supported by aligned maxima in CD/gCD and CP response, but causal separation from mobility/device geometry is not independently isolated.
main p.4, article p.26677 · Synthesis and Sample Characterization · Figures 2 and 3 · Linked to 4 structured results
CAS-4 preferentially recognises R-naproxen over S-naproxen, giving larger adsorption and photocurrent response.
Caveat: Selectivity is strongest for naproxen and reported carboxylic-acid analytes; broad enantiomer recognition is limited by functional group and molecular size.
main p.8, article p.26681 · Chiral Sensing of CAS-4 MOF Thin Film · Figures 6 and S40-S41 · Linked to 6 structured results
LCP gives a larger photocurrent because CAS-4 shows stronger visible absorption under LCP than RCP.
Caveat: The paper reports wavelength correlation between CD/gCD and responsivity; absolute photocurrent also depends on device transport.
main p.5, article p.26678 · CP Photodetection Performance of CAS-4 MOF Thin Film · Figures 3b and 4b · Linked to 3 structured results
The nonlinear I-V response is attributed to a metal-semiconductor-metal structure with a Schottky barrier at the MOF/Au interface.
Caveat: Mechanistic assignment is author interpretation; Ag electrode comparison supports but does not quantify barrier height.
main p.5, article p.26678 · CP Photodetection Performance of CAS-4 MOF Thin Film · Figure 4d; Figure S31 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| CAS-4 chiral copper tripeptide metal-peptide framework | C28H44Cu2N12O8 from Table S1; elemental-analysis section also reports CAS-4 as C14H32CuN6O9.Cu2+ ions in binuclear Cu2O2 clusters; central Cu2+ is five-coordinate CuN3O2 distorted square pyramidal. · Doubly deprotonated tripeptide Glycyl-L-histidyl-L-lysine (GHL), acting as a tridentate ligand. | 3D · PristineChiral 3D peptide MOF with Cu2O2(GHL)3 propeller units, 2D coordination layers, perpendicular peptide cross-links, solvent-accessible pores and [101]-oriented thin-film growth. | main p.2, article p.26675 · Synthesis and Sample Characterization · Figure 1; Table S1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CAS-4 thin film-based Au photodetectorresearch_0229__mat__cas4_cu_tripeptide_mof | Electrode · Target Sample · Composite | Au electrode patterned by magnetron sputtering through an interdigital shadow mask after nitrogen cleaning.CAS-4 thin film on functionalized substrate with 60 nm Au source/drain interdigital electrodes. · CAS-4 active layer typically 20 cycles, approximately 480 nm; Au electrode 60 nm. | SI p.7 · Fabrication CAS-4 thin film-based photodetector · Figure 4a |
| Blue bulk CAS-4 crystalsresearch_0229__mat__cas4_cu_tripeptide_mof | Single Crystal · Pristine Control · Pristine Framework | Bulk crystals collected after room-temperature sealed-bottle reaction.none · not_applicable | SI p.6 · Synthesis of CAS-4 (bulk crystal) · Table S1 |
| CAS-4 structural unit-cell computational modelresearch_0229__mat__cas4_cu_tripeptide_mof | Model · Model System · Model | DFT model for HSE06/PBE band structure and DOS calculations.not_applicable · periodic structural unit-cell model | main p.4, article p.26677 · Synthesis and Sample Characterization · Figure 3c,d; Figures S18-S19 |
| CAS-4 with R/S-naproxen binding computational modelresearch_0229__mat__cas4_cu_tripeptide_mof | Model · Model System · Model | CP2K PBE-D3 adsorption-energy calculations.not_applicable · cluster/periodic binding model not fully specified in text layer | main p.8, article p.26681 · Chiral Sensing of CAS-4 MOF Thin Film · Figure S41 |
| Non-oriented CAS-4 control filmresearch_0229__mat__cas4_cu_tripeptide_mof | Thin Film · Pristine Control · Pristine Framework | CAS-4 crystals dispersed in water by sonication and spin-coated at 800 rpm for 30 s.Functionalized Si/SiO2 substrate. · not specified; prepared by spin coating dispersed CAS-4 crystals. | SI p.7 · Fabrication of CAS-4 non-oriented thin film · Figures S11, S13, S14, S34 |
| Highly oriented CAS-4 thin film grown for 20 LPE-LBL cyclesresearch_0229__mat__cas4_cu_tripeptide_mof | Thin Film · Target Sample · Pristine Framework | Sequential Cu(OAc)2/GHL LPE-LBL dipping with ethanol washes; [101]-preferred orientation.Functionalized quartz for optical measurements and functionalized Si/SiO2 for film/device preparation. · approximately 480 nm after 20 deposition cycles; surface roughness approximately 2 nm. | main p.3, article p.26676 · Synthesis and Sample Characterization · Figure 2 |
| CAS-4 MOF thin film coated QCM electroderesearch_0229__mat__cas4_cu_tripeptide_mof | Electrode · Target Sample · Composite | QCM electrode coated with CAS-4 MOF thin film; heated under Ar and then exposed to naproxen vapour.Quartz crystal microbalance electrode. · not specified | SI p.9 · QCM experiment · Figure S40 |
| CAS-4 thin film after R-naproxen exposureresearch_0229__mat__cas4_cu_tripeptide_mof | Thin Film · Target Sample · Guest Loaded | Immersed in 1 mmol/mL R-naproxen ethanol solution for 5 min, washed with ethanol and dried in air.CAS-4 thin-film photodetector substrate. · not separately specified; derived from CAS-4 thin-film device. | SI p.7 · Details of docking experiment · Figures S36-S38 |
| CAS-4 thin film after S-naproxen exposureresearch_0229__mat__cas4_cu_tripeptide_mof | Thin Film · Target Sample · Guest Loaded | Immersed in 1 mmol/mL S-naproxen ethanol solution for 5 min, washed with ethanol and dried in air.CAS-4 thin-film photodetector substrate. · not separately specified; derived from CAS-4 thin-film device. | SI p.7 · Details of docking experiment · Figures S36-S38 |