158429
Diiodomethane
ReagentPlus®, 99%, contains copper as stabilizer
Synonym(s):
Methylene iodide
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About This Item
Empirical Formula (Hill Notation):
CH2I2
CAS Number:
Molecular Weight:
267.84
Beilstein:
1696892
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21
Recommended Products
vapor density
9.25 (vs air)
Quality Level
product line
ReagentPlus®
Assay
99%
form
liquid
contains
copper as stabilizer
bp
67-69 °C/11 mmHg (lit.)
mp
5-8 °C (lit.)
density
3.325 g/mL at 25 °C (lit.)
SMILES string
ICI
InChI
1S/CH2I2/c2-1-3/h1H2
InChI key
NZZFYRREKKOMAT-UHFFFAOYSA-N
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General description
Diiodomethane is a solvent used as a halogen bond donor toward metal-bound halides.
Diiodomethane (CH2I2) is an iodine containing organic compound. Its decomposition in acetonitrile initiated by 310nm light has been investigated. Femtosecond pump-probe spectroscopic and ab initio molecular dynamics simulations studies of the photodecomposition of CH2I2 suggest the formation of the isomer of diiodomethane (CH2I-I) as hot photoproduct. In the atmosphere, it undergoes photolysis in the presence of ozone to afford iodine oxide (IO) which results in the formation of aerosols. Its vacuum ultraviolet (VUV) photoabsorption spectrum has been reported.
Diiodomethane (CH2I2) is an iodine containing organic compound. Its decomposition in acetonitrile initiated by 310nm light has been investigated. Femtosecond pump-probe spectroscopic and ab initio molecular dynamics simulations studies of the photodecomposition of CH2I2 suggest the formation of the isomer of diiodomethane (CH2I-I) as hot photoproduct. In the atmosphere, it undergoes photolysis in the presence of ozone to afford iodine oxide (IO) which results in the formation of aerosols. Its vacuum ultraviolet (VUV) photoabsorption spectrum has been reported.
Application
Diiodomethane has been used as a probe liquid for evaluation of the polar and dispersive components of the surface energy of the catecholamine coated fiber surfaces. It may be used for the preparation of cyclopropyl ketones, esters and amides.
Diiodomethane may be used as a probe solvent in contact angle measurement to analyze the hydrophilicity of polymer surfaces.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 3
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
230.0 °F - closed cup
Flash Point(C)
110 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Anuvab Mandal et al.
The Journal of chemical physics, 140(19), 194312-194312 (2014-05-24)
The electronic absorption spectrum of diiodomethane in the 30,000-95,000 cm(-1) region is investigated using synchrotron radiation; the spectrum in the 50,000-66,500 cm(-1) region is reported for the first time. The absorption bands in the 30,000-50,000 cm(-1) region are attributed to
Michael Odelius et al.
The Journal of chemical physics, 121(5), 2208-2214 (2004-07-21)
Photodissociation of diiodomethane (CH2I2) in acetonitrile solution has been studied with ab initio molecular dynamics simulations, which show how the iso-diiodomethane photoproduct (CH2I-I) can be formed. The first excited state, described by the "restricted open-shell Kohn-Sham" density functional method, is
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