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180858

Sigma-Aldrich

1,1′-Diheptyl-4,4′-bipyridinium dibromide

97%

Synonym(s):

N ,N ′-Diheptyl-4,4′-dipyridylium dibromide, DHPB, Diheptylviologen bromide, Diheptylviologen dibromide, Heptylviologen dibromide

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About This Item

Empirical Formula (Hill Notation):
C24H38Br2N2
CAS Number:
6159-05-3
Molecular Weight:
514.38
EC Number:
228-178-7
MDL number:
MFCD00011997
UNSPSC Code:
12352103
PubChem Substance ID:
24850902
NACRES:
NA.23

Assay

97%

form

crystals

mp

285 °C (dec.) (lit.)

SMILES string

[Br-].[Br-].CCCCCCC[n+]1ccc(cc1)-c2cc[n+](CCCCCCC)cc2

InChI

1S/C24H38N2.2BrH/c1-3-5-7-9-11-17-25-19-13-23(14-20-25)24-15-21-26(22-16-24)18-12-10-8-6-4-2;;/h13-16,19-22H,3-12,17-18H2,1-2H3;2*1H/q+2;;/p-2

InChI key

VRXAJMCFEOESJO-UHFFFAOYSA-L

General description

1,1′-Diheptyl-4,4′-bipyridinium dibromide (DHBP) is a heptyl viologen that can be used as an electrochromic (EC) material. It forms a highly efficient quenching system for conjugated polyelectrolyte for the development of organic electronics. It also acts as a redox active electrolyte for electrochemical devices (ECDs).

Application

DHBP is an EC material which can be used in the fabrication of electronic devices such as organic light emitting diodes (OLED), supercapacitors, and liquid crystal displays (LCDs).

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
11525BY
07518BY

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The effect of ferrocyanide on the performance of heptyl viologen-based electrochromic display devices.
Monk PMS.
Journal of Electroanalytical Chemistry, 432(1-2), 175-179 (1997)
Effects of polymer aggregation and quencher size on amplified fluorescence quenching of conjugated polyelectrolytes.
Jiang H, et al.
Langmuir, 23(18), 9481-9486 (2007)
Electrochromic materials
Mortimer, R. J.
Chemical Society Reviews, 26(3), 147-156 (1997)
Electrochemically controllable emission and coloration by using europium (III) complex and viologen derivatives.
Nakamura K, et al.
Chemical Communications (Cambridge, England), 47(36), 10064-10066 (2011)
Efficient charge storage in dual-redox electrochemical capacitors through reversible counterion-induced solid complexation.
Evanko B, et al.
Journal of the American Chemical Society, 138(30), 9373-9376 (2016)
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