Autorizzo l’utilizzo di cookies.

Accetto Utilizziamo cookies per migliorare il nostro servizio e realizzare statistiche. Questa funzione puó essere disattivata cambiando la configurazione del browser. Continuando a navigare senza modificare questi parametri, consideriamo che l’uso di cookies sia accettato

1518-16-7 - 7,7,8,8-Tetracyanoquinodimethane, 98% - TCNQ - A10779 - Alfa Aesar

A10779 7,7,8,8-Tetracyanoquinodimethane, 98%

Codice CAS
1518-16-7
Sinonimi
TCNQ

Dimensioni Prezzo ($) Quantità Disponibilità
5g 64,70
25g 234,00
Aggiungi al carrello Aggiungi al preventivo generale Visualizza articolo

7,7,8,8-Tetracyanoquinodimethane, 98%

MDL
MFCD00011664
EINECS
216-174-8

Proprietà chimiche

Formula
C12H4N4
Peso formula
204.19
Punto di fusione
ca 288° dec.
Solubilità
Insoluble in water.

Applicazioni

7,7,8,8-Tetracyanoquinodimethane is an electron-acceptor molecule used to form charge-transfer superconductors. It is an effective catalyst used for the ?-chlorination of carboxylic acids using chlorosulfonic acid; the presence of TCNQ suppresses competing free-radical chlorination.

Note

Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Incompatible with oxidizing agents.

Letteratura

K. Sutter.; J. Hulliger.; P. Günter. Photorefractive effects observed in the organic crystal 2-cyclooctylamino-5-nitropyridine doped with 7,7,8,8-tetracyanoquinodimethane. Solid State Communications. 1990, 74, (8), 867-870.

Long, R. E.; Sparks, R. A.; Trueblood, K. N. The crystal and molecular structure of 7, 7, 8, 8-tetracyanoquinodimethane. Acta Crystallographica. 1965, 18 (5), 932-939.

Electron-acceptor, forming stable radical anions: J. Am. Chem. Soc., 82, 6408 (1960); 84, 3370, 3374 (1962).

Forms charge-transfer complexes with electron-rich donors: J. Am. Chem. Soc., 95, 948 (1973).

For a review of the differences between "metallic" and "non-metallic" salts of TCNQ, see: Acc. Chem. Res., 12, 79 (1979).

Effective catalyst for the ɑ-chlorination of carboxylic acids using chlorosulfonic acid; the presence of TCNQ suppresses competing free-radical chlorination: J. Org. Chem., 48, 1364 (1983).

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H312-H331

Harmful if swallowed. Harmful in contact with skin. Toxic if inhaled.

Dichiarazioni precauzionali: P261-P280h-P304+P340-P311a-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/clothing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
611604
Classe di rischio
6.1
Gruppo di imballaggio
III
Codice tariffe armonizzato
2926.90
TSCA
Yes
RTECS
GU4850000

Raccomandato

  • A10187

    4,4'-Bipyridine, 98%
  • A10428

    9-Bromofluorene, 98+%
  • A10668

    (3-Aminopropyl)triethoxysilane, 98%
  • A13945

    Tetracyanoethylene, 98%
  • 36259

    Dihydrogen hexachloroplatinate(IV) hexahydrate, ACS, Premion®, 99.95% (metals basis), Pt 37.5% min

Visualizzati di recente

Prodotti chimici

Scienze della vita

Metalli e materiali

Catalizzatori

Apparecchiature di analisi e di laboratorio