64746-04-9

Basic information

• Product Name: 2,5-bis(bromomethyl)-1,4-Benzenedicarbonitrile
• Synonyms: 2,5-bis(bromomethyl)-1,4-Benzenedicarbonitrile;1,4-Bis(broMoMethyl)-2,5-dicyanobenzene;2,5-bis(bromomethyl)benzene-1,4-dicarbonitrile
• CAS NO: 64746-04-9
• Molecular Formula: C₁₀H₆Br₂N₂
• Molecular Weight: 313.98
• Mol File: 64746-04-9.mol
• Article Data: 9

Chemical Properties

• Melting Point: 163 °C
• Boiling Point: 405.9±45.0 °C(Predicted)
• Appearance: /
• Density: 1.85±0.1 g/cm3(Predicted)
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 2,5-bis(bromomethyl)-1,4-Benzenedicarbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-bis(bromomethyl)-1,4-Benzenedicarbonitrile(64746-04-9)
• EPA Substance Registry System: 2,5-bis(bromomethyl)-1,4-Benzenedicarbonitrile(64746-04-9)

Safety Data

• Hazardous Substances Data: 64746-04-9(Hazardous Substances Data)

Usage

Uses

1,4-Bis(bromomethyl)-2,5-dicyanobenzene is used as a reagent in synthesizing photon dyes containing heterocyclic rings. 1,4-Bis(bromomethyl)-2,5-dicyanobenzene is also used as a reagent in the preparation of cyano-containing distirylbenzene chromophores.

Upstream product

• 106-42-3 para-xylene 
• 128-08-5 N-Bromosuccinimide 
• 39095-25-5 2,5-dimethylbenzene-1,4-dicarbonitrile 
• 1074-24-4 2,5-dibromo-p-xylene 
• 7726-95-6 bromine 

Downstream Products

• 1309762-78-4 2,5-di-[2-(4-hydroxy-phenyl)ethylene]terephthalonitrile 
• 443919-80-0 E,E-1,4-bis(4-iodo-2,5-di-n-hexylstyryl)-2,5-dicyano-benzene 
• 314270-67-2 [(2,5-dicyano-1,4-phenylene)bis(methylene)]bisphosphonic acid tetraethyl ester 

Relevant articles and documents

Linear and V-shaped carbazole-based molecules functionalized by cyano acceptors and diversified donors: Synthesis, single- and two-photon related photophysical properties

A series of novel linear and V-shaped carbazole-based molecules functionalized by cyano acceptors and diversified donors (carbazole, diphenylamino, dimethylamino, methoxy, and ferrocene) were synthesized and characterized by hydrogen-1 nuclear magnetic resonance, carbon-13 nuclear magnetic resonance, Fourier transform infrared spectroscopy, and high-resolution mass spectrometry. Their linear and nonlinear optical properties including UV–visible absorption, single-photon excited fluorescence, two-photon absorption, and frequency up-converted fluorescence, were systematically investigated in various solvents. The time-resolved photoluminescence studies using time-correlated single photon counting revealed their fluorescence lifetimes in THF. The solvent polarity exerts little effect on their absorption properties, while the emission properties (maximum fluorescence wavelength, Stokes shift, fluorescence quantum yield) display solvent polarity dependencies. Donor-acceptor functionalities and molecular dimensionality are considered to be the crucial structural factors that influence their optical properties. Pumped by a femtosecond laser (690–990 nm, 80 MHz, 140 fs), all the target molecules emit intense frequency up-converted fluorescence except FC1 and FC2 which contain one or two ferrocene donors. The two-photon absorption cross-sections in THF are in the range of 631–3014 GM. The density functional theory calculations were also conducted to unravel their electronic structures and to further understand the structure-property relationships. To our knowledge, this study is the first to be concerned with the single- and two-photon related photophysical properties of these D-π-A-π-D′ and D′-π-A-π-D-π-A-π-D′ carbazole-based molecules (D = donor, A = acceptor, π = conjugated bridge).

Open-Chain Crown-Ether-Derived Two-Photon Fluorescence Probe for Real-Time Dynamic Biopsy of Mercury Ions

A novel two-photon fluorescence probe for Hg2+ derived from bis(styryl)terephthalonitrile, as a two-photon fluorophore, and bis[2-(2-hydroxyethyl sulfanyl) ethyl]amino group (ionophore), as a novel Hg2+ ligand, was developed. The probe possesses small molecule size, large two-photon absorption cross-section (1067 GM) in H2O, non-cytotoxic effect, long wavelength emission at 588nm, large Stokes shift (121nm), excellent photostability, high water solubility, good cell permeability, and pH insensitivity in the biologically relevant range. The probe can selectively detect Hg2+ ions in live cells and living tissues without interference from other metal ions and the membrane-bound probes, and its quenching constant is 8.73×105 M-1.

Electrochromic compounds, electrochromic composition, and a display element

PROBLEM TO BE SOLVED: To provide an electrochromic compound and electrochromic composition which show sharp light absorption spectral characteristics in color development, and present yellow based, cyan based, and black based color developments, and to provide a display element using the electrochromic compound or electrochromic composition. SOLUTION: The electrochromic compound is represented by formula (1). In the formula (1), X1, X2, X3, and X4each independently denote a hydrogen atom or a monovalent substituent, n denotes the integer of 1 to 6, Rs each independently denote a monovalent substituent, and Ar denotes a benzene ring which may have a substituent when n is from 1 to 5, and only a benzene ring when n is 6, and A-denotes a monovalent anion. COPYRIGHT: (C)2011,JPOandINPIT