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Application Protocols
No manufacturer‑validated biological assay protocols are provided for this item.
Practical materials protocols (general guidance):
Surface treatment: Prepare 1–10 mg/mL solution in IPA or EtOH; spin‑coat onto cooled 3D perovskite films (e.g., 3000 rpm, 20–30 s), allow 10–60 s dwell, then anneal at 100 °C for 5–10 min.
Quasi‑2D ink: Dissolve with PbI2 in DMF:DMSO or MeOH at desired stoichiometry; spin/blade coat and anneal per device recipe.
Always filter solutions (0.20 µm) immediately before use and work under inert atmosphere for best reproducibility.
Refer to peer‑reviewed protocols for device‑specific parameters; adjust based on substrate, layer stack, and environmental controls.
Biological Roles
This product is intended for materials and synthetic chemistry. It does not have an established biological role.
General notes (literature/general):
Aromatic ammonium salts can interact electrostatically and via cation–π/π–π interactions with biomolecules, but 3‑methoxyphenylethylammonium iodide is not used as a metabolite, cofactor, or buffer component.
Any biological testing should be performed strictly under research‑use‑only conditions; no clinical or diagnostic use is implied.
Buffer Applications
Not typically used as a buffering agent.
Rationale:
The compound is an organic ammonium iodide salt without a defined conjugate acid/base pair suitable for maintaining a target pH over a useful range in aqueous systems.
For aqueous work, select established buffers (e.g., phosphate, HEPES, acetate) as appropriate to your application.
Green Alternatives
While the salt itself is fixed, solvent systems and processing routes can be optimized for greener performance.
Greener solvent choices for inks/treatments (literature/general):
Prefer alcohols (MeOH, EtOH, IPA) and acetonitrile over DMF/GBL when solubility and film quality allow.
Employ water/alcohol co‑solvents for certain surface treatments to reduce VOC load.
Process design:
Use room‑temperature deposition and lower‑temperature anneals when compatible with target morphology.
Minimize anti‑solvent volumes; consider antisolvent‑free blade/slot‑die coating with controlled humidity.
Comparison (general guidance):
| Aspect | Conventional (DMF/DMSO) | Greener route (MeOH/EtOH/IPA, MeCN) |
|---|---|---|
| Toxicity | Higher (DMF reproductive tox.) | Lower (alcohols/MeCN with proper ventilation) |
| Solubility | Excellent | Moderate–high; may need heat/additives |
| Drying control | Slower, good film leveling | Faster; requires process tuning |
| Waste | Hazardous mixed polar aprotics | Easier to manage alcohol streams |
Caveats:
Alcohol‑rich systems can accelerate crystallization; adjust spin speeds, substrate temp, and concentration.
Verify device performance parity before full process substitution.
Pharmaceutical Uses
No pharmacopeial or excipient status is provided for this item.
From Product Data:
Research Use: For research use only.
General notes (non‑clinical):
Aromatic ammonium iodide salts like this are primarily used in materials science and synthetic chemistry. They are not common pharmaceutical excipients.
If used in formulation research (e.g., as a model ionic species), ensure appropriate toxicological assessment and regulatory review. No therapeutic claims are made or implied.
Physical Properties
Item-specific properties from Product Data:
Appearance: Not specified for this item; refer to CoA/Spec Sheet.
Molecular formula / weight: Not specified for this item; refer to CoA/Spec Sheet.
Literature/general expectations for arylalkylammonium iodide salts (non‑spec for this item):
Physical state: Typically crystalline solids; often off‑white to light tan depending on trace impurities.
Melting point: Commonly elevated for organic ammonium iodides; exact value not specified for this item.
Solubility: High in polar protic/aprotic solvents (water, methanol, ethanol, isopropanol, DMSO, DMF, GBL); low in nonpolar hydrocarbons and chlorinated solvents.
Hygroscopicity: Many iodide salts are moderately hygroscopic; moisture uptake can alter handling and solution stoichiometry.
Optical/UV: Aromatic chromophore present; expect UV absorbance in the 200–280 nm region (literature, qualitative). No item‑specific UV cutoff provided.
Practical notes for users (general):
Prepare solutions using anhydrous, oxygen‑poor media when intended for halide‑perovskite processing.
Filter solutions (e.g., 0.20–0.45 µm PTFE/PP) before thin‑film fabrication to remove particulates.
For quantitative work, determine water content of solvent system rather than relying on nominal dryness of the salt.
Quality and Grades
Grade/purity (from Product Data): Not specified for this item; refer to CoA/Spec Sheet.
Interpreting common grades (general guidance):
Materials grade: Emphasizes low ionic/particulate contamination and consistent crystallization behavior—important for thin‑film fabrication and device reproducibility.
Electronic or perovskite grade (if stated on CoA): Typically indicates low levels of alkali/transition‑metal impurities, halide balance verification, and tight control of residual solvents and water.
HPLC/ACS grades are less relevant for solid perovskite precursors but can indicate broader purity controls.
Stabilizer and additives:
No stabilizers are indicated in the Product Data. If present (per CoA), note their impact on film formation and conduct appropriate pre‑use purification (e.g., recrystallization or antisolvent wash) if device performance is sensitive.
Lot-specific documentation:
Review the CoA/Spec Sheet for assay, residual halides, water content (Karl Fischer), metals by ICP‑MS, and particle size. These parameters strongly affect film morphology and optoelectronic performance.
Widely used as a bulky organic A‑site spacer cation to form or passivate low‑dimensional (Ruddlesden–Popper/Dion–Jacobson‑like) lead‑halide perovskites when combined with PbI2 and other halide sources.
The meta‑methoxy substituent modulates intermolecular interactions and the dielectric environment, aiding defect passivation, moisture tolerance, and grain‑boundary modification in 3D perovskites.
Employed in surface treatments of MAPbI3/FAPbI3 films and in quasi‑2D emitters for LEDs and lasers, tuning phase distribution and exciton confinement.
Typical use modes (general):
Additive (0.5–10 mol% vs. Pb) in 3D perovskite precursor solutions.
Cation exchange or post‑deposition spin‑coating from alcohols to form ultrathin 2D capping layers.
Bulk 2D perovskite formation using stoichiometric mixtures with PbI2 in polar aprotic solvents.
Practical considerations (general):
Ensure low water and oxygen during processing; drybox handling improves reproducibility.
Control annealing profile to steer n‑phase distribution in quasi‑2D systems.
For post‑treatment, use alcohol solvents (IPA/EtOH) to limit dissolution of underlying 3D perovskite while allowing surface ion exchange.
Beyond perovskites (general synthetic use):
Serves as a source of the 3‑methoxyphenethylammonium cation for ion exchange (e.g., to PF6−, BF4−) via metathesis, creating salts with different thermal/solubility properties for catalysis or materials templating.
Reaction Conditions
Typical processing conditions when used in halide‑perovskite research (literature/general guidance; not item‑specific):
Solution preparation:
Concentrations: 5–100 mg/mL depending on role (surface treatment vs bulk 2D formation).
Solvents: DMF, DMSO, GBL, MeOH/EtOH/IPA, or MeCN; ensure anhydrous grades.
Filtration: 0.20 µm prior to coating.
Thin‑film deposition:
Substrates preheated to 40–70 °C can improve wetting.
Spin‑coating: 1000–5000 rpm, 20–60 s; optional anti‑solvent drip (IPA, EA, toluene) in the final seconds to induce crystallization.
Blade/slot‑die: 25–60 °C bed temperature; control solvent partial pressure and line speed for uniform coats.
Annealing:
80–120 °C for 5–30 min commonly used for quasi‑2D/treated 3D films; optimize to balance solvent removal and phase evolution.
Stoichiometry for layered phases:
For RP‑like perovskites, mix with PbI2 at ratios targeting n‑phases (e.g., (RNH3)2PbnI3n+1); adjust organic cation content to tune n‑distribution.
Atmosphere:
Work in dry nitrogen/argon glovebox when possible; trace water/oxygen affect nucleation and halide stoichiometry.
Device stack interactions:
Alcohol‑based post‑treatments minimize dissolution of underlying 3D films; brief exposures (5–30 s) followed by mild anneal are typical.
These conditions are representative from the literature; adapt to your specific substrate, solvent system, and target morphology.
Safety and Handling
Authoritative safety data: Always consult the product SDS. The following are general considerations for aromatic ammonium iodide salts and not item‑specific classifications.
GHS/labeling (from Product Data):
Signal word / H‑statements / GHS class / pictograms: Not specified for this item; refer to SDS.
General hazards (literature/general):
May cause skin/eye irritation and respiratory irritation as dust/aerosol; avoid inhalation and contact.
Iodide salts can cause staining and are often hygroscopic; handle quickly in low humidity.
Not flammable as a solid, but organic iodides can decompose on heating, emitting irritant fumes.
Storage incompatibilities (general):
Keep away from strong oxidizers and strong bases/acids that could alter the ammonium/iodide speciation.
Minimize exposure to light, air (O2), and moisture to maintain performance in materials applications.
Recommended PPE/practices (general):
Laboratory coat, safety glasses/goggles, and appropriate chemical‑resistant gloves (e.g., nitrile).
Handle powders in a fume hood or glovebox when preparing sensitive inks.
Wash thoroughly after handling; avoid eating/drinking in work area.
First‑aid overview (general):
Eyes: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do.
Skin: Wash with soap and water; remove contaminated clothing.
Inhalation: Move to fresh air; seek medical attention if symptoms persist.
Ingestion: Rinse mouth; seek medical advice.
Solvent Selection
As an organic ammonium iodide salt, 3‑methoxyphenylethylammonium iodide dissolves best in polar solvents.
Polarity class (general): Ionic, protic cation with non‑coordinating iodide; best handled in high‑dielectric media.
Practical selection for perovskite inks (general):
Single solvents: DMF, DMSO, GBL, or MeOH/EtOH for low‑toxicity routes.
Binary systems: DMF:DMSO (e.g., 4:1–9:1 v/v) balance solubility and drying; MeOH:IPA for greener processing.
Anti‑solvents: IPA, ethyl acetate, or toluene during spin‑coating; choice affects crystallization.
Small comparison (general):
DMF vs MeOH: DMF offers higher solubility and slower evaporation (smooth films) but higher toxicity; MeOH safer/greener but faster drying and possible pinholes.
DMSO vs GBL: DMSO strongly coordinates (crystallization control), GBL slower evaporating and less odorous.
Tip:
Filter freshly prepared solutions (0.20 µm PTFE/nylon) and use anhydrous grades; water substantially changes nucleation and film microstructure.
Storage and Reconstitution
From Product Data (item‑specific):
Storage conditions: Protected from light, room temperature, argon charged.
Shipped in: Normal.
Practical storage guidance (general, aligned with Product Data):
Keep tightly sealed under inert gas (Ar/N2) with desiccant to limit moisture/oxygen uptake and iodide oxidation.
Store in the original light‑protective container; minimize headspace exchanges.
If long‑term storage is planned, consider secondary containment and low‑humidity cabinets.
Reconstitution/preparation (general):
Dissolve in anhydrous polar solvents (e.g., DMF, DMSO, MeOH, EtOH, IPA, MeCN) at the required concentration.
Warm gently (≤50 °C) if needed to aid dissolution; avoid prolonged heating.
Filter through 0.20 µm PTFE/nylon before film deposition to remove particulates.
Use freshly prepared solutions; many perovskite inks age (hours–days) with changes in speciation/viscosity.
Stability notes (general):
Hygroscopic uptake can alter mass accuracy; for precise stoichiometry, dry briefly under vacuum/inert atmosphere prior to weighing.
Avoid exposure to strong light and oxidants that can impact iodide integrity.
Always refer to the product CoA/SDS for lot‑specific handling and stability details.
Structure and Identity
Aromatic alkylammonium iodide salt used in materials chemistry (e.g., low‑dimensional halide perovskites), consisting of a meta‑methoxyphenethylammonium cation paired with iodide.
Core: Benzene ring bearing a meta‑methoxy (–OCH3) substituent.
Side chain: –CH2–CH2–NH3+ (primary ammonium), providing a cationic headgroup.
Counterion: Iodide (I−).
2D description: A substituted anisole ring (methoxy at the 3‑position) tethered via an ethylene linker to a protonated primary amine; the iodide anion is non‑coordinating and balances charge.
Notes: Structure data above under “literature/computed” is provided for context to aid use and method development; consult the product CoA/SDS for definitive identifiers applicable to this lot.
Synthetic Utility
As an isolable ammonium iodide, 3‑methoxyphenylethylammonium iodide is useful where a stable, crystalline, and readily weighed cation source is needed.
Ion pairing and exchange (general):
Serves as a precursor to alternate counterions via metathesis (e.g., NaPF6, KBF4, AgOTf) to generate salts with different solubility/thermal behavior for catalysis, crystallization, or ionic‑liquid‑like materials.
Iodide can be exchanged for less coordinating anions (PF6−, BF4−, OTf−) to modulate conductivity and hygroscopicity.
Access to freebase (general):
Treatment with a mild base (e.g., Na2CO3, NH3) in biphasic systems can liberate the 3‑methoxyphenethylamine freebase for further transformations (acylation, sulfonylation, urea/carbamate formation), if permitted by your workflow.
Aryl/benzylic chemistry (general observations):
The methoxy‑substituted aromatic ring supports electrophilic substitution and cross‑coupling on appropriately functionalized derivatives; while the ammonium form itself is not a coupling partner, the freebase can be protected and elaborated.
Materials templating (general):
The cation acts as a structure‑directing agent in layered halide perovskites, enabling control of interlayer spacing and phase purity—valuable for optoelectronic device optimization.
Target Specificity
Not applicable. This product is a small‑molecule salt used in materials and synthetic chemistry, not a biological reagent with defined antigen or target specificity.
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