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O3605

Sigma-Aldrich

1,8-Octanedithiol

≥97%

Synonym(s):

1,8-Dimercaptooctane

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About This Item

Linear Formula:
HS(CH2)8SH
CAS Number:
1191-62-4
Molecular Weight:
178.36
EC Number:
214-738-8
MDL number:
MFCD00003574
UNSPSC Code:
12352103
PubChem Substance ID:
24897980
NACRES:
NA.23

Quality Level

100

Assay

≥97%

refractive index

n20/D 1.505 (lit.)

bp

269-270 °C (lit.)

density

0.97 g/mL at 25 °C (lit.)

SMILES string

SCCCCCCCCS

InChI

1S/C8H18S2/c9-7-5-3-1-2-4-6-8-10/h9-10H,1-8H2

InChI key

PGTWZHXOSWQKCY-UHFFFAOYSA-N

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General description

1,8-Octanedithiol (OCT) is an alkanedithiol, which forms a self-assembled monolayer (SAM) on a variety of metal surfaces. OCT contains linearly arranged carbon-carbon bonds (C−C) and two sulfur atoms at the end facilitating the attachment with the surface atoms of the substrates. It mainly forms an organo-metallic system, which can be used to improve the electron transport medium for a wide range of electronic applications.

Application

OCT may be used as a processing additive that can functionalize the electrode layer to enhance the power efficiency of P3HT:PCBM solar cells. It may also be used to form a SAM on gold electrodes to enhance the electrochemical properties.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Delocalisation softens polaron electronic transitions and vibrational modes in conjugated polymers.
Kahmann S, et al.
Journal of Material Chemistry C, 6(22), 6008-6013 (2018)
Adsorption of single 1, 8-octanedithiol molecules on Cu (100).
Villagomez CJ, et al.
Physical Chemistry Chemical Physics, 18(39), 27521-27528 (2016)
X-ray studies of self-assembled monolayers on coinage metals. 1. Alignment and photooxidation in 1, 8-octanedithiol and 1-octanethiol on Au.
Rieley H, et al.
Langmuir, 14(18), 5147-5153 (1998)
Influence of Solvent Additive 1, 8-Octanedithiol on P3HT: PCBM Solar Cells.
Wang W, et al.
Advances in Functional Materials, 28(20), 1800209-1800209 (2018)
Electrochemical STM investigation of 1, 8-octanedithiol monolayers on Au (1 1 1).: Experimental and theoretical study.
Esplandiu MJ, et al.
Surface Science, 600(1), 155-172 (2006)
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