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n-Hexylammonium Bromide C₆H₁₆BrN 99% Purity HexABr White Powder 2D Layered Perovskite Spacer Precursor CAS 7334-95-4 Light-Sensitive Hygroscopic Glovebox Storage

n-Hexylammonium Bromide 99% 5 g CAS 7334-95-4 ATOMFAIR®

$141.00

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Research-grade n-hexylammonium bromide (HexABr), C6H16BrN, CAS 7334-95-4, 5 g, >99% purity for 2D perovskites. Order now.

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N-HEXYLAMMONIUM BROMIDE C₆H₁₆BRN 99% HEXABR CAS 7334-95-4

RESEARCH GRADE MATERIAL

Product Overview
n-Hexylammonium Bromide (C₆H₁₆BrN, HexABr, CAS 7334-95-4) is a long-alkyl-chain organic bromide salt with C₆H₁₆BrN 99% purity HexABr, supplied as a white powder with a molecular weight of 182.10 g/mol. This compound functions as an effective 2D layered perovskite spacer precursor, where the six-carbon hexyl chain provides an intermediate-length hydrophobic barrier that modulates interlayer spacing in layered perovskite structures. The hexylammonium cation simultaneously passivates grain boundary and surface defects while blocking moisture ingress through the hydrophobic alkyl chain, significantly enhancing the environmental stability of perovskite optoelectronic devices. Compared to shorter butylammonium analogs, the extended hexyl chain offers increased hydrophobicity and larger interlayer spacing; compared to longer octylammonium analogs, it provides improved precursor solubility. The material is widely utilized in university and research institute laboratories for two-dimensional perovskite solar cell, photodetector, and light-emitting diode experimental research. Freely soluble in polar organic solvents including DMF and DMSO, this high-purity precursor is compatible with spin-coating and solution blending preparation techniques. Strict light-sensitive hygroscopic glovebox storage is required to maintain material integrity.

Technical Specifications
PARAMETER DETAILS
Molecular Formula C₆H₁₆BrN
CAS Number 7334-95-4
Molecular Weight 182.10 g/mol
Specification 5 g
Purity >99%
Physical Form White Powder
Solubility Freely Soluble in DMF, DMSO and Polar Organic Solvents
Storage Conditions Light-Protected, Dry, Sealed, Room Temperature; Long-Term: N₂ Glovebox Recommended
Custom Configurations Other packaging specifications are available upon request. Please contact us via email for custom orders.

Key Features & Advantages
  • Optimized Intermediate Chain Length for Balanced Properties: The six-carbon hexyl chain provides an optimal balance between butyl (C4) and octyl (C8) ammonium analogs—offering enhanced hydrophobicity over shorter chains while maintaining superior solubility and processability compared to longer-chain counterparts.
  • Enhanced Moisture Barrier via Hydrophobic Alkyl Chain: The hexylammonium cation forms a robust hydrophobic protective layer at perovskite film surfaces and grain boundaries, effectively blocking moisture ingress and significantly improving device environmental stability under ambient conditions.
  • Precise Interlayer Spacing Modulation: HexABr enables fine-tuning of the perovskite quantum-well interlayer distance through its defined six-carbon spacer length, providing an additional structural parameter for optimizing charge transport and exciton confinement in 2D perovskite systems.
  • Ultra-High Purity Exceeding 99%: Refined to >99% purity with low batch impurity content, the precursor minimizes extrinsic defects in 2D perovskite thin films and supports reproducible device performance across experimental batches.

APPLICATION SCOPE: Organic spacer cation for 2D layered and quasi-2D Ruddlesden-Popper phase perovskite synthesis. Interlayer spacing modulator for tuning charge transport and exciton confinement in layered perovskite structures. Surface and grain boundary passivation agent with hydrophobic moisture barrier functionality. Precursor for dimensionality engineering in mixed 2D/3D perovskite systems. Compatible with spin-coating and precursor solution blending deposition protocols. Supports two-dimensional perovskite solar cell, photodetector, and light-emitting diode research in university and research institute laboratories.
PACKAGING: This listing is for the 5 g specification. Other packaging weights are available upon custom request. Each package is sealed under inert atmosphere within light-protective packaging to prevent photodegradation and moisture ingress. The hygroscopic nature of n-hexylammonium bromide necessitates immediate transfer to a desiccated, light-protected storage environment—preferably a nitrogen-filled glovebox for long-term storage. For bulk quantities or custom packaging specifications, please contact us via email.
IMPORTANT NOTICE: n-Hexylammonium bromide is hygroscopic and light-sensitive. Tighten the container cap immediately after each use to prevent moisture ingress from ambient air. Wear protective gloves throughout all experimental procedures; avoid direct skin contact. Store in a light-protected, moisture-free environment; do not store together with strong oxidizing agents or acidic reagents. Prioritize powder weighing and solution preparation within a nitrogen-filled inert glovebox (H₂O < 1 ppm, O₂ < 1 ppm). For long-term storage, inert-atmosphere glovebox conditions are recommended. Exposure to atmospheric moisture will cause deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. For detailed safety and handling information, consult the Safety Data Sheet prior to use.
TAILORED SOLUTIONS FOR RESEARCH
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EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

This hygroscopic, light-sensitive organic bromide salt requires strict moisture and light protection to prevent deliquescence and photodegradation. Long-term storage under inert atmosphere (N₂ glovebox, H₂O < 1 ppm, O₂ < 1 ppm) is recommended to maintain stoichiometric integrity.

  • Moisture Sensitivity: Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.
  • Light Sensitivity: Photodegradation necessitates storage in light-protective packaging and a light-free environment.
  • Inert Atmosphere Requirement: Powder weighing and solution preparation should be performed within a nitrogen-filled glovebox with H₂O < 1 ppm and O₂ < 1 ppm.
  • Container Integrity: Tighten the container cap immediately after each use to prevent moisture ingress from ambient air.

This protocol describes safe handling and storage of hygroscopic, light-sensitive n-hexylammonium bromide for 2D perovskite precursor preparation. Steps emphasize inert-atmosphere transfer and moisture-free storage to preserve material purity.

Required Equipment: Nitrogen-filled glovebox (H₂O < 1 ppm, O₂ < 1 ppm), Light-protective storage container, Protective gloves

  1. Transfer to Glovebox
    Transfer the sealed, light-protective package directly into a nitrogen-filled glovebox with H₂O < 1 ppm and O₂ < 1 ppm before opening.
  2. Weigh Under Inert Atmosphere
    Weigh the required amount of white powder inside the glovebox, ensuring no exposure to ambient air.
  3. Dissolve in Anhydrous Solvent
    Dissolve the powder in anhydrous DMF or DMSO under inert atmosphere to prepare the precursor solution.
  4. Seal Container Immediately
    Tighten the container cap immediately after each use to prevent moisture ingress from ambient air.
  5. Store in Light-Protected Environment
    Store the sealed container in a light-protected, desiccated environment, preferably inside the nitrogen glovebox for long-term storage.

How does the six-carbon hexyl chain in n-Hexylammonium Bromide balance hydrophobicity and solubility compared to butylammonium and octylammonium analogs?

The six-carbon hexyl chain provides an optimal balance: it offers enhanced hydrophobicity over shorter butylammonium (C4) analogs, improving moisture barrier properties, while maintaining superior solubility and processability compared to longer octylammonium (C8) analogs. This intermediate chain length allows for precise interlayer spacing modulation in 2D perovskite structures without compromising precursor solubility in polar organic solvents like DMF and DMSO.

What role does n-Hexylammonium Bromide play in modulating interlayer spacing and charge transport in 2D perovskite systems?

n-Hexylammonium Bromide functions as a 2D layered perovskite spacer precursor. Its defined six-carbon alkyl chain provides an intermediate-length hydrophobic barrier that modulates interlayer spacing in layered perovskite structures, enabling fine-tuning of quantum-well distance. This structural parameter optimizes charge transport and exciton confinement in 2D and quasi-2D Ruddlesden-Popper phase perovskites, making it suitable for solar cell, photodetector, and LED research.

What are the critical storage and handling requirements for n-Hexylammonium Bromide to prevent degradation?

n-Hexylammonium Bromide is hygroscopic and light-sensitive. It must be stored in a light-protected, dry, sealed container at room temperature, with long-term storage recommended in a nitrogen glovebox (H₂O < 1 ppm, O₂ < 1 ppm). Immediate transfer to a desiccated, light-protected environment after opening is essential, as exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.

n-Hexylammonium Bromide (HexABr) is a high-purity (>99%) organic spacer cation for 2D perovskite synthesis, offering an optimized C6 alkyl chain that balances hydrophobicity and solubility for interlayer spacing modulation and moisture barrier passivation. Strict light-protected, anhydrous glovebox storage is mandatory to prevent deliquescence and hydrolysis.

Positive

  • Optimized Intermediate Chain Length: The six-carbon hexyl chain provides an optimal balance between butyl (C4) and octyl (C8) analogs, offering enhanced hydrophobicity over shorter chains while maintaining superior solubility and processability compared to longer-chain counterparts.
  • Enhanced Moisture Barrier via Hydrophobic Alkyl Chain: The hexylammonium cation forms a robust hydrophobic protective layer at perovskite film surfaces and grain boundaries, effectively blocking moisture ingress and significantly improving device environmental stability under ambient conditions.

Trade-offs

  • Hygroscopic and Light-Sensitive Storage Requirements: The material is hygroscopic and light-sensitive; exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. Light-protected, sealed, dry storage at room temperature is required, with long-term storage recommended in a nitrogen glovebox.
  • Requires Inert Atmosphere Handling to Prevent Degradation: Powder weighing and solution preparation should be performed in a nitrogen-filled inert glovebox (H₂O < 1 ppm, O₂ < 1 ppm) to avoid moisture ingress. Container must be tightened immediately after each use, and the material must not be stored with strong oxidizing agents or acidic reagents.

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