51066-74-1

Basic information

• Product Name: dimethylammonium iodide
• Synonyms: dimethylammonium iodide;Dimethylamine Hydroiodide;Methanamine, N-methyl-,hydriodide (9CI);N-methylmethanamine:hydroiodide
• CAS NO: 51066-74-1
• Molecular Formula: C₂H₈N*I
• Molecular Weight: 172.99609
• EINECS: 256-945-6
• Mol File: 51066-74-1.mol
• Article Data: 6

Chemical Properties

• Melting Point: 153.0 to 157.0 °C
• Boiling Point: 6.1°Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 1520mmHg at 25°C
• Water Solubility: Soluble in water
• CAS DataBase Reference: dimethylammonium iodide(CAS DataBase Reference)
• NIST Chemistry Reference: dimethylammonium iodide(51066-74-1)
• EPA Substance Registry System: dimethylammonium iodide(51066-74-1)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26
• Hazardous Substances Data: 51066-74-1(Hazardous Substances Data)

Usage

Description

Dimethylammonium iodide (DMAI) is a chemical compound that serves as a precursor for the DMAPbI3 2H-perovskite structure. It is stable under ambient conditions for several months, unlike its MAPbI3 analogue. DMAPbI3 exhibits a relatively large optical gap (Eg ≈ 2.59 eV), which suggests that the conductivity of this material is ionic rather than electronic.

Uses

Used in Solar Energy Industry:
Dimethylammonium iodide is used as a precursor for the synthesis of perovskite materials, specifically DMAPbI3, which is employed in the development of solar cells. The ionic conductivity and stability of DMAPbI3 make it a promising candidate for improving the efficiency and performance of solar energy applications.
Used in Material Science Research:
Dimethylammonium iodide is utilized as a starting material for the investigation of perovskite structures and their properties. Researchers use DMAI to study the formation, stability, and potential applications of various perovskite materials in different fields, such as electronics, optoelectronics, and energy storage.

InChI:InChI=1/C2H7N.HI/c1-3-2;/h3H,1-2H3;1H

Upstream product

• 506-59-2 N,N-dimethylammonium chloride 
• 124-40-3 dimethyl amine 
• 7732-18-5 water 
• 421-59-0 trifluoromethyldiiodophosphine 
• 74-88-4 methyl iodide 
• 2043-57-4 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-iodooctane 
• 68-12-2 N,N-dimethyl-formamide 
• 67-56-1 methanol 
• 53759-16-3 3,5-dimethoxybenzyltrimethylammonium iodide 
• 4525-46-6 benzyltrimethylammonium iodide 
• 64-17-5 ethanol 

Relevant articles and documents

Phase Transition, Dielectric Properties, and Ionic Transport in the [(CH3)2NH2]PbI3 Organic-Inorganic Hybrid with 2H-Hexagonal Perovskite Structure

In this work, we focus on [(CH3)2NH2]PbI3, a member of the [AmineH]PbI3 series of hybrid organic-inorganic compounds, reporting a very easy mechanosynthesis route for its preparation at room temperature. We report that this [(CH3)2NH2]PbI3 compound with 2H-perovskite structure experiences a first-order transition at ≈250 K from hexagonal symmetry P63/mmc (HT phase) to monoclinic symmetry P21/c (LT phase), which involves two cooperative processes: an off-center shift of the Pb2+ cations and an order-disorder process of the N atoms of the DMA cations. Very interestingly, this compound shows a dielectric anomaly associated with the structural phase transition. Additionally, this compound displays very large values of the dielectric constant at room temperature because of the appearance of a certain conductivity and the activation of extrinsic contributions, as demonstrated by impedance spectroscopy. The large optical band gap displayed by this material (Eg = 2.59 eV) rules out the possibility that the observed conductivity can be electronic and points to ionic conductivity, as confirmed by density functional theory calculations that indicate that the lowest activation energy of 0.68 eV corresponds to the iodine anions, and suggests the most favorable diffusion paths for these anions. The obtained results thus indicate that [(CH3)2NH2]PbI3 is an electronic insulator and an ionic conductor, where the electronic conductivity is disfavored because of the low dimensionality of the [(CH3)2NH2]PbI3 structure.

REACTION OF 1-(F-ALKYL)-2-IODOETHANES WITH AMIDES FOR THE SYNTHESIS OF RF-CH2CH2OH: A MECHANISTIC STUDY

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4,5-Dicyano-1,3,2λ3-diazaphospholate - an Anionic 1,3,2-Diazaphosphole, Stable as a Monomer

Diamino-maleodinitrile and P(NMe2)3 condense at room temperature to the dimethylammonium salt of the dicyano-1,3,2-diazaphosphole.Other products may result under different conditions.MeI methylates the ambivalent diazaphosphole anion at nitrogen. - Keywords: Dicoordinate Phosphorus, Azaphospholes, Ambivalent System, 13C NMR Spectra, Mass Spectra