Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

791245

Sigma-Aldrich

N749 Black Dye

Synonym(s):

Greatcell Solar®, Black dye, Ruthenium 620, Tris(N,N,N-tributyl-1-butanaminium)[[2,2′′6′,2′′-terpyridine]-4,4′,4′′-tricarboxylato(3-)-N1,N1′,N1′′]tris(thiocyanato-N)hydrogen ruthenate(4-)

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C69H116N9O6RuS3
Molecular Weight:
1364.98
MDL number:
MFCD28016340
UNSPSC Code:
12352103
PubChem Substance ID:
329768264
NACRES:
NA.23

Assay

85% (HPLC)

Quality Level

100

form

powder

color

dark green

λmax

615, 415, 341, 329 nm at 0.02 mM in ethanol (lit.)

SMILES string

CCCC[N+](CCCC)(CCCC)CCCC.[O-]C(C1=CC(C2=NC=CC(C([O-])=O)=C2)=NC(C3=CC(C([O-])=O)=CC=N3)=C1)=O.S=C=N[Ru](N=C=S)N=C=S.CCCC[N+](CCCC)(CCCC)CCCC.CCCC[N+](CCCC)(CCCC)CCCC

InChI

1S/C18H11N3O6.3C16H36N.3CNS.Ru/c22-16(23)9-1-3-19-12(5-9)14-7-11(18(26)27)8-15(21-14)13-6-10(17(24)25)2-4-20-13;3*1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;3*2-1-3;/h1-8H,(H,22,23)(H,24,25)(H,26,27);3*5-16H2,1-4H3;;;;/q;3*+1;3*-1;+3/p-3

InChI key

YOIDEEDNCKVVPH-UHFFFAOYSA-K

General description

N749 Black Dye (N749) has ruthenium at the center that forms a co-ordinate bond with the monoprotonated tricarboxyterpyridine and three thiocyanates. It can be used as a sensitizer that functionalizes the semi-conducting materials that exhibit an absorption peak in the near infrared region.

Application

N749 Black Dye is designed for the widest range spectral sensitisation of wide band-gap oxide semiconductors; like titanium dioxide up to wavelengths beyond 800nm.
Recommended application in 0.2-0.3mM solution with ethanol or acetonitrile/tert-butanol (1:1; vol:vol).
Reduced graphene oxide (rGO) can be surface modified by using N749 to enhance the photocatalytic characteristics of hydrogen evolution system. It may also be used as a high efficiency dye for niobium pentoxide (Nb2O5) photoanodes which can be used for the fabrication of titanium oxide (TiO2) coated dye sensitized solar cells (DSSCs).

Legal Information

Greatcell Solar is a registered trademark of Greatcell Solar

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H317,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - 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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCH8922
MKBV1736V
MKBR1472V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 3

1 of 3

Brilliant Black BN analytical standard

Supelco

11220

Brilliant Black BN

Reactive Black 5 Dye content ≥50 %

Sigma-Aldrich

306452

Reactive Black 5

Chlorazol Black

Sigma-Aldrich

C1144

Chlorazol Black

Panchromatic engineering for dye-sensitized solar cells
Yum J, et al.
Energy & Environmental Science, 4(3), 842-857 (2011)
Minwoo Ahn et al.
Lasers in surgery and medicine, 46(9), 703-711 (2014-08-29)
Laser light has been widely used as a surgical tool to treat benign prostate hyperplasia (BPH) over 20 years. Recently, application of high laser power up to 200 W was often reported to swiftly remove a large amount of prostatic tissue.
Test of Different Sensitizing Dyes in Dye-Sensitized Solar Cells Based on Nb2O5 Photoanodes
Latini A and Panetta R
ENERGIES, 11(4), 975-975 (2018)
Carolin Müller et al.
The journal of physical chemistry. A, 124(33), 6607-6616 (2020-07-24)
The impact of the electronic structure of a series of 4H-imidazolate ligands in neutral, heteroleptic Cu(I) complexes is investigated. Remarkable broad and strong ligand-dependent absorption in the visible range of the electromagnetic spectrum renders the studied complexes promising photosensitizers for
Ridade Sayin et al.
International journal of pharmaceutics, 496(1), 24-32 (2015-09-20)
As twin screw granulation (TSG) provides one with many screw element options, characterization of each screw element is crucial in optimizing the screw configuration in order to obtain desired granule attributes. In this study, the performance of two different screw
View All Related Papers

Articles

Ruthenium-based dyes for Dye-sensitized Solar Cells

Dye-sensitized solar cells (DSCs) are 3rd generation solar cells combining the promise of high efficiency with low production costs.

Understanding and Successfully Applying Materials for Dye-Sensitized Solar Cells

While dye sensitization as the basis for color photography has been accepted for a very long time,1 attempts to use this principle for the conversion of solar light to electricity generally had resulted only in very low photocurrents, below 100 nA/cm

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service