Mukkatt I., Mohanachandran A.P., Nirmala A. et al. · ACS Applied Materials and Interfaces · 2022 · 31900-31910
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.
High volumetric capacitance, energy density, conductivity and electrochromic switching make these thin-film metallopolymers candidates for compact microenergy storage and wearable/on-chip devices.
Caveat: Demonstrated as symmetric supercapacitor cells, not integrated on-chip devices.
p001 · Abstract · Linked to 5 structured results
Electrochemical addressability of the electrochromic metallopolymer thin films is limited at thicknesses above 250 nm, while behaviour is similar below 200 nm.
Caveat: Statement is qualitative; no full thickness series values are tabulated.
p009 · BET Surface Area and Conductivity · Linked to 3 structured results
The volumetric capacitance and charge-discharge properties correlate directly with measured electrical conductivity rather than BET surface area for these low-surface-area metallopolymers.
Caveat: Authors note that charge-transfer resistance, mass transport and faradaic/non-faradaic processes cannot be rigorously excluded.
p009 · Conclusions · Linked to 9 structured results
The extended conjugation in L2 is proposed to enhance through-plane conductivity in poly-Fe-L2 via better pi-d conjugation, efficient charge delocalisation and interlayer stacking.
Caveat: Mechanistic assignment is interpretive; authors state that individual through-bond, through-plane, through-space and hopping contributions are difficult to isolate.
p008-p009 · BET Surface Area and Conductivity · Figure S12 · Linked to 4 structured results
Electron transfer in less porous poly-Fe-L2 assemblies is suggested to be limited by slow diffusion, unlike poly-Fe-L1 and poly-Fe-L3.
Caveat: Based on scan-rate trends and morphology/porosity interpretation rather than a direct diffusion coefficient.
p005 · Electrochemistry and Spectroelectrochemistry · Figure 4 · Linked to 3 structured results
Charge storage is predominantly pseudocapacitive, with possible contributions from faradaic, non-faradaic and mass-transport phenomena; EDL-only storage is not supported.
Caveat: Small EDL contributions cannot be rigorously excluded according to the authors.
p007 · Capacitance · Figure 6b; Figure S7 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| L1 terpyridine ligand | C90H58N12tetrakis-terpyridine ligand based on tetrabromobenzene and boronic acid 3 | 0D · UnknownMolecular precursor ligand for poly-Fe-L1. | p004 · Synthesis of L1 · Scheme S2 |
| L2 terpyridine ligand | C110H72N12tetraphenylethylene tetrakis-terpyridine ligand | 0D · UnknownMolecular precursor ligand for poly-Fe-L2. | p006 · Step 3: Synthesis of L2 · Scheme S3 |
| L3 terpyridine ligand | C110H72N12 reported in SI mass line; bithiophene-containing ligandbithiophene tetrakis-terpyridine ligand | 0D · UnknownMolecular precursor ligand for poly-Fe-L3. | p006-p007 · Synthesis of L3 · Scheme S4 |
| poly-Fe-L1 | [Fe(L1)2]n(PF6)2nFe(II) centres coordinated by terpyridine ligands · L1 terpyridine ligand with benzene core | unknown · PristineAmorphous Fe(II)-terpyridine metallopolymer PF6 salt; schematic coordination polymer, not an essentially planar 2D structure. | p003-p004 · Results and Discussion - Synthesis and Characterization · Figure 1; Figure 3 |
| poly-Fe-L2 | [Fe(L2)2]n(PF6)2nFe(II) centres coordinated by terpyridine ligands · L2 terpyridine ligand with tetraphenylethylene core | unknown · PristineAmorphous Fe(II)-terpyridine metallopolymer PF6 salt; less porous grain-like assembly than L1/L3 films. | p004-p008 · Results and Discussion · Figure 3; Figure 6; Figure S12 |
| poly-Fe-L3 | [Fe(L3)2]n(PF6)2nFe(II) centres coordinated by terpyridine ligands · L3 terpyridine ligand with bithiophene core | unknown · PristineAmorphous Fe(II)-terpyridine metallopolymer PF6 salt; macroporous assembly with lower conductivity and capacitance than L2. | p003-p008 · Results and Discussion · Figure 1; Figure S11 |
| DFT cluster models of poly-Fe-L1, poly-Fe-L2 and poly-Fe-L3 | cluster model fragmentsFe centre defined with LANL2DZ basis set and pseudopotential · cluster systems cut from L1-L3 metallopolymer structures | 0D · Model SystemPBE/BS1 DFT cluster models confirming octahedral coordination modes. | p010,p017 · Computational Calculations · Figure S13 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| L1 ligand precursorresearch_0756__mat__mat_l1_ligand | Powder · Unknown · Unknown | white solid after column chromatography | p004 · Synthesis of L1 · Scheme S2 |
| L2 ligand precursorresearch_0756__mat__mat_l2_ligand | Powder · Unknown · Unknown | white solid after column chromatography | p006 · Step 3: Synthesis of L2 · Scheme S3 |
| L3 ligand precursorresearch_0756__mat__mat_l3_ligand | Powder · Unknown · Unknown | white solid after column chromatography | p007 · Synthesis of L3 · Scheme S4 |
| poly-Fe-L1 symmetric supercapacitor electrode compositeresearch_0756__mat__mat_poly_fe_l1 | Electrode · Composite Sample · Composite | 1 cm2 electrode; metallopolymer mixed with activated charcoal and PTFE in 8:1:1 mass ratio | p003,p007 · Preparation of the Electrodes and Electrochemical Measurements; Capacitance · Figure 6 |
| poly-Fe-L1 four-probe drop-cast glass filmresearch_0756__mat__mat_poly_fe_l1 | Thin Film · Target Sample · Pristine Framework | 2 mg metallopolymer dissolved in methanol/dichloromethane (1:1 v/v, 200 microL), drop-cast on glassglass · 185 +/- 4 nm | p003,p008 · Determination of Resistivity and Electrical Conductivity by 4-Probe Measurements · Figure S12 |
| poly-Fe-L1 isolated metallopolymer powderresearch_0756__mat__mat_poly_fe_l1 | Powder · Target Sample · Pristine Framework | PF6 salt precipitated from water, washed with DI water and vacuum dried | p007 · Synthesis of the Metallopolymers |
| poly-Fe-L1 drop-cast thin filmresearch_0756__mat__mat_poly_fe_l1 | Thin Film · Target Sample · Pristine Framework | metallopolymer in MeOH drop-cast on transparent conducting oxide substrates; coated on mica for AFMTCO/FTO or freshly cleaved mica depending on measurement · below 200 nm for addressable capacitive/conductive films; electrochemical addressability limited above 250 nm | p005,p009 · Electrochemistry and Spectroelectrochemistry; BET Surface Area and Conductivity · Figure 3; Figure 5 |
| poly-Fe-L2 symmetric supercapacitor electrode compositeresearch_0756__mat__mat_poly_fe_l2 | Electrode · Composite Sample · Composite | 1 cm2 electrode; metallopolymer mixed with activated charcoal and PTFE in 8:1:1 mass ratio | p009 · Preparation of the Electrodes and Electrochemical Measurements · Figure S7; Table S1 |
| poly-Fe-L2 four-probe drop-cast glass filmresearch_0756__mat__mat_poly_fe_l2 | Thin Film · Target Sample · Pristine Framework | 2 mg metallopolymer dissolved in methanol/dichloromethane (1:1 v/v, 200 microL), drop-cast on glassglass · 185 +/- 4 nm | p008 · BET Surface Area and Conductivity · Figure S12 |
| poly-Fe-L2 isolated metallopolymer powderresearch_0756__mat__mat_poly_fe_l2 | Powder · Target Sample · Pristine Framework | PF6 salt precipitated from water, washed with DI water and vacuum dried | p007 · Synthesis of the Metallopolymers |
| poly-Fe-L2 drop-cast thin filmresearch_0756__mat__mat_poly_fe_l2 | Thin Film · Target Sample · Pristine Framework | metallopolymer in MeOH drop-cast on transparent conducting oxide substrates; coated on mica for AFMTCO/FTO or freshly cleaved mica depending on measurement · below 200 nm for addressable capacitive/conductive films; electrochemical addressability limited above 250 nm | p004-p005,p009 · Synthesis and Characterization; Electrochemistry and Spectroelectrochemistry · Figure 3; Figure 5 |
| poly-Fe-L3 symmetric supercapacitor electrode compositeresearch_0756__mat__mat_poly_fe_l3 | Electrode · Composite Sample · Composite | 1 cm2 electrode; metallopolymer mixed with activated charcoal and PTFE in 8:1:1 mass ratio | p009 · Preparation of the Electrodes and Electrochemical Measurements · Figure S7 |
| poly-Fe-L3 four-probe drop-cast glass filmresearch_0756__mat__mat_poly_fe_l3 | Thin Film · Target Sample · Pristine Framework | 2 mg metallopolymer dissolved in methanol/dichloromethane (1:1 v/v, 200 microL), drop-cast on glassglass · 185 +/- 4 nm | p008 · BET Surface Area and Conductivity · Figure S12 |
| poly-Fe-L3 isolated metallopolymer powderresearch_0756__mat__mat_poly_fe_l3 | Powder · Target Sample · Pristine Framework | PF6 salt precipitated from water, washed with DI water and vacuum dried | p007 · Synthesis of the Metallopolymers |
| poly-Fe-L3 drop-cast thin filmresearch_0756__mat__mat_poly_fe_l3 | Thin Film · Target Sample · Pristine Framework | metallopolymer in MeOH drop-cast on transparent conducting oxide substrates; coated on mica for AFMTCO/FTO or freshly cleaved mica depending on measurement · below 200 nm for addressable capacitive/conductive films; electrochemical addressability limited above 250 nm | p005,p009 · Electrochemistry and Spectroelectrochemistry; BET Surface Area and Conductivity · Figure 3; Figure 5 |
| PBE/BS1 DFT cluster models for poly-Fe-L1/L2/L3research_0756__mat__mat_poly_fe_model | Model · Model System · Model | cluster model cut from chemical structure; hydrogens omitted in figure for clarity | p010,p017 · Computational Calculations · Figure S13 |