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29261-33-4

Name 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane
CAS 29261-33-4
Molecular Formula C12F4N4
MDL Number MFCD00042382
Molecular Weight 276.15
MOL File 29261-33-4.mol
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Chemical Properties

Appearance Yellow-greenish or orange-brown powder
Melting point  285-290 °C(lit.)
Boiling point  -89.6±40.0 °C(Predicted)
density  1.7075 (estimate)
storage temp.  Sealed in dry,Room Temperature
form  powder to crystal
color  Light yellow to Amber to Dark green
Water Solubility  insoluble
BRN  2157887
InChI InChI=1S/C12F4N4/c13-9-7(5(1-17)2-18)10(14)12(16)8(11(9)15)6(3-19)4-20
InChIKey IXHWGNYCZPISET-UHFFFAOYSA-N
SMILES C1(=C(C#N)C#N)C(F)=C(F)C(=C(C#N)C#N)C(F)=C1F |c:10,t:0|
CAS DataBase Reference 29261-33-4(CAS DataBase Reference)
Description
F4TCNQ is?one of the most widely used and most effective p-type dopants due to its strong electron-accepting ability and the extended?π?system. It has a deep LUMO level (-5.2 eV) which is energetically in the vicinity of the?HOMO level of many organic semiconductors. Doping is facilitated by charge transfer from the HOMO level of the host to the LUMO of the dopant molecule.?Pin devices with F4TCNQ doped 4,4',4''-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA) serving as the p-doped HTL show high luminance and efficiency at extremely low operating voltages: For instance, a luminance of 1000 cd/m2 is?reached at a voltage of 2.9 V .
Odor Brown-yellow powder

Safety Data

Hazard Codes  Xn,T
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  2811
WGK Germany  3
Hazard Note  Toxic
HazardClass  6.1(b)
PackingGroup  III
HS Code  29269090

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