Welcome to LookChem.com Sign In|Join Free

CAS

  • or

112440-46-7

Post Buying Request

112440-46-7 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

112440-46-7 Usage

General Description

CIS-1,2-DICYANO-1,2-BIS(2,4,5-TRIMETHYL-3-THIENYL)ETHENE, often shortened to TMTTF, is a complex organic compound frequently studied for its conductive properties. It is made up of two cyano groups (-CN) and two thienyl groups attached to an ethene backbone. Thienyl groups contain a five-membered ring that consists of four carbon atoms and one sulfur atom. The 'cis' in their name refers to a specific spatial arrangement of these groups. The compound is known for exhibiting unique electronic properties and is considered a type of organic conductor due to the mobility of the electrons in its structure. These properties make TMTTF potentially applicable in molecular electronics and optoelectronics. However, its high reactivity due to the presence of the cyano groups requires special handling precautions when studying or using it.

Check Digit Verification of cas no

The CAS Registry Mumber 112440-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,4,4 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 112440-46:
(8*1)+(7*1)+(6*2)+(5*4)+(4*4)+(3*0)+(2*4)+(1*6)=77
77 % 10 = 7
So 112440-46-7 is a valid CAS Registry Number.
InChI:InChI=1/C18H18N2S2/c1-9-11(3)21-13(5)17(9)15(7-19)16(8-20)18-10(2)12(4)22-14(18)6/h1-6H3/b16-15-

112440-46-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name CIS-1,2-DICYANO-1,2-BIS(2,4,5-TRIMETHYL-3-THIENYL)ETHENE

1.2 Other means of identification

Product number -
Other names CIS-1,2-DICYANO-1,2-BIS

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:112440-46-7 SDS

112440-46-7Relevant articles and documents

Optical and electrochemical properties of cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene

Koshido,Kawai,Yoshino

, p. 6110 - 6114 (1995)

Optical and electrochemical properties of cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (CMTE) have been studied by absorption spectroscopy, cyclic voltammetry, fast sweep voltammetry, and in-situ electrochemical absorptiometry. HOMO and LUMO levels of the CMTE are evaluated from absorption spectra and voltammetry. The lifetimes of unstable cation radicals formed by the electrochemical oxidation of CMTE in closed and open forms are evaluated by the fast sweep voltammetry. Electrochemical isomerization of closed form CMTE is studied by in-situ electrochemical absorptiometry, and the current efficiency is observed to be higher than 600%. The isomerization mechanism and kinetics have been studied taking chain electron transfer reaction between the cation radical of the open form CMTE and the neutral closed form CMTE into consideration.

The photoorientation movement of a diarylethene-type chromophore

Ishitobi,Sekkat,Irie,Kawata

, p. 12802 - 12805 (2000)

We quantified coupled photoisomerization and photoorientation of a diarylethene-type chromophore in films of poly(methyl methacrylate). We found that the chromophore retains partial memory of its orientation during the A → B UV-induced isomerization and that the chromophore movement is thermalized after the A←B green light induced isomerization. The isomerization quantum yields are φAB/365 = 1.1 φAB/405 = 0.32, and φBA/532 = 0.16, and the transitions at 365 (405) and 532 nm of the B isomer are oriented at an angle of 74.3 (61.3)° to each other. This relative orientation of the transition dipoles is rationalized by MOPAC molecular orbital calculations.

Thermally Irreversible Photochromic Systems. Reversible Photocyclization of Diarylethene Derivatives

Irie, Masahiro,Mohri, Masaaki

, p. 803 - 808 (1988)

The reversible photocyclization of 1,2-diarylethene derivatives having methyl-substituted heterocyclic rings has been found to constitute a photochromic system, which is both thermally irreversible and fatigue resistant. cis-1,2-Dicyano-1,2-bis(2,4,5-trim

Spectral, conformational and photochemical analyses of photochromic dithienylethene: Cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene revisited

Erko, Firealem G.,Berthet, Jerome,Patra, Abhijit,Guillot, Regis,Nakatani, Keitaro,Metivier, Remi,Delbaere, Stephanie

, p. 7809 - 7814 (2013/12/04)

The conformational equilibrium and thermodynamic parameters of cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (1a) and its trans derivative 1c are presented. Irradiation of both compounds was carried out by using 365 nm light, which affects the cis/trans isomerisation process, whereas irradiation with 405 nm light preferentially promotes the formation of the cyclised product. Prolonged irradiation of 1a at 365 nm leads to the formation of a new derivative showing photochromic properties. Evidence for the formation of the novel derivative is presented, and details of its photochromic properties were investigated; a tentative mechanism has also been proposed. The equilibrium between parallel and antiparallel forms of cis- and trans-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene was studied by NMR spectroscopy. Photocyclisation or cis/trans isomerisation was induced by irradiation with 405 or 365 nm light. Extended irradiation of the cis compound generated two peroxy derivatives that thermally convert into a new coloured compound with its own photochromic properties. Copyright

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 112440-46-7