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Sigma-Aldrich

2,5-Diiodothiophene

98%

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Empirical Formula (Hill Notation):
C4H2I2S
CAS Number:
Molecular Weight:
335.93
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

form

solid

bp

139-140 °C (lit.)

mp

37-41 °C (lit.)

storage temp.

2-8°C

SMILES string

Ic1ccc(I)s1

InChI

1S/C4H2I2S/c5-3-1-2-4(6)7-3/h1-2H

InChI key

PNYWRAHWEIOAGK-UHFFFAOYSA-N

General description

The multilayer desorption behavior of 2,5-diidothiophene was studied.

Application

2,5-Diiodothiophene was used in the preparation of oligothiophene films. It was used in maskless fabrication of periodic patterns of a conjugated polymer. It was also used in fabrication of oligothiophene and polythiophene micropatterns.

wgk_germany

WGK 3

flash_point_f

closed cup

flash_point_c

closed cup

ppe

Eyeshields, Gloves, type N95 (US)


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Photochemical production of oligothiophene and polythiophene micropatterns from 2, 5-diiodothiophene on Au in UHV.
Liu G, et al.
Surface Science, 592(1), L305-L309 (2005)
Sudarshan Natarajan et al.
The journal of physical chemistry. B, 110(15), 8047-8051 (2006-04-14)
This paper describes the details of surface reactions producing >100-nm-thick conjugated polymer films. When 2,5-diiodothiophene films deposited on copper are irradiated with UV at room temperature in Ar environments, oligothiophene films are synthesized. The average conjugation length of the produced
Sudarshan Natarajan et al.
Langmuir : the ACS journal of surfaces and colloids, 21(15), 7052-7056 (2005-07-13)
Maskless fabrication of periodic patterns of a conjugated polymer is achieved by regioselective condensation of 2,5-diiodothiophene on chemically patterned substrate surfaces followed by in situ photochemical conversion of the condensed molecules into oligothiophenes and polythiophenes. This approach utilizes preferential aggregation
Guangming Liu et al.
The journal of physical chemistry. B, 110(41), 20197-20201 (2006-10-13)
The multilayer desorption behavior of 2,5-diidothiophene and the dendritic aggregation of photochemical reaction products during the desorption of 2,5-diiodothiophene multilayers have been studied. Like many other aromatic compounds, 2,5-diiodothiophene shows a multilayer desorption behavior different from the typical zeroth-order kinetics

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