40817-03-6

Basic information

• Product Name: PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM
• Synonyms: PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM;para-xylylenebis-(triphenylphosphonium bromide),;[1,4-phenylenebis(methylene)]bis[triphenylphosphonium] dibromide;(p-Xylylene)bis(triphenylphosphonium)·dibromide;1,4-Xylylenebis(triphenylphosphonium)·2bromide;1,4-Xylylenebis(triphenylphosphonium)·dibromide;p-Phenylenebis(methylene)bis(triphenylphosphonium)·dibromide;1,4-Bis[(triphenylphosphonio)methyl]benzene dibromide
• CAS NO: 40817-03-6
• Molecular Formula: 2Br*C₄₄H₃₈P₂
• Molecular Weight: 788.528042
• EINECS: 255-092-7
• Mol File: 40817-03-6.mol
• Article Data: 11

Chemical Properties

• Melting Point: >300 °C(lit.)
• Appearance: /
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Water Solubility: Slightly soluble in water.
• Sensitive: Hygroscopic
• BRN: 3584592
• CAS DataBase Reference: PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM(CAS DataBase Reference)
• NIST Chemistry Reference: PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM(40817-03-6)
• EPA Substance Registry System: PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM(40817-03-6)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• RIDADR: 3278
• WGK Germany: 3
• Hazardous Substances Data: 40817-03-6(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 40817-03-6 differently. You can refer to the following data:
1. suzuki reaction
2. p-Xylylenebis(triphenylphosphonium bromide) is used as pharmaceutical intermediate.

InChI:InChI=1/C44H38P2.2BrH/c1-7-19-39(20-8-1)45(40-21-9-2-10-22-40,41-23-11-3-12-24-41)35-37-31-33-38(34-32-37)36-46(42-25-13-4-14-26-42,43-27-15-5-16-28-43)44-29-17-6-18-30-44;;/h1-34H,35-36H2;2*1H/q+2;;/p-2

Upstream product

• 106-42-3 para-xylene 
• 603-35-0 triphenylphosphine 
• 623-24-5 1,4-bis(bromomethyl)benzene 

Downstream Products

• 185544-12-1 cis,trans-4-(2-(1,2,3,4,5-pentamethylferrocen-1'-yl)ethenyl)-4'-formylstilbene 
• 1048038-92-1 C₂₈H₂₆O₆ 
• 105-06-6 1,4-Divinylbenzene 
• 135312-51-5 C₂₆H₂₂ 
• 76841-60-6 1,4-bis(2,2-difluoroethenyl)benzene 
• 110829-13-5 1,4-bis<β(1-Butyl-2-phenyl-3-indolyl)vinyl>benzene 
• 95027-02-4 (E)-1,4-bis(2,6-dichlorostyryl)benzene 
• 3095-81-6 1,4-bis(4-pyridylethenyl)benzene 
• 1245707-29-2 1,4-bis((E)-2-(5-bromo-3-dodecylthiophen-2-yl)vinyl)benzene 
• 1357500-95-8 dimethyl 4-(4-(2-(2,6-bis(methoxycarbonyl)pyridine-4-yl)vinyl)styryl)pyridine-2,6-dicarboxylate 
• 1290637-96-5 E-triphenyl[4-(2-(2,4,6-trimethoxyphenyl)ethenyl)-benzyl]phosphonium bromide 
• 1290638-09-3 E,E-1-[2-(2,4,6-trinitrophenyl)ethenyl]-4-[2-(2,4,6-trimethoxyphenyl)ethenyl]benzene 

Relevant articles and documents

Self-assembly behaviors of the cholesteryl trimeric-phenylene vinylene derivative in the H2O/THF system

Cholesteryl trimeric phenylene vinylene (Chol-TPV) has been synthesized and characterized. The self-assembly behaviors of Chol-TPV in THF/H2O system at different water content (water content: 40% and 80%) and different solute concentration (solute concentration: 1.0 × 10-5 mol/L and saturated concentration) were studied using UV-vis spectrophotometry, photoluminescence spectrophotometry, and circular dichroism spectroscopy. Based on an analysis of the UV-vis and photoluminescence spectra, Chol-TPV shows the typical H-type aggregation at saturated concentration in 80% aqueous THF. However, Chol-TPV shows the non-typical H-type aggregation under other conditions. The circular dichroism signal suggests that the Chol-TPV exists in the right handed helical architectures with high water content at a concentration of 1.0 × 10-5 mol/L, and a helix inversion was found at saturated concentration.

Electronic and structural properties of polymers based on phenylene vinylene and thiophene units. Control of the gap by gradual increases of thiophene moieties

Several poly(thiophene) derivatives containing p-phenylenevinylene (PV) as an electron-donor were synthesized using FeCl3. PV units are regularly spaced in two, four and eight thiophenyl units across the main chain. PV units and the gradual increase in the number of thiophene units affect the properties of polymers such as poly(3-hexylthiophene), (P3HT). Polymers, labeled as poly(FV1Th), poly(FVBiTh) and poly(FVTeTh) were characterized by FT-IR and UV-Vis spectrometry, elemental analysis, thermal stability (TGA), differential scanning calorimetry (DSC) and cyclic voltammetry (CV). Conjugation increases with increasing thiophene rings in the main chain and the conjugation is higher in polymers that exhibited different optical absorption, effective conjugation, similar intrinsic viscosity, and high thermal stability with a weight loss less than 10% at decomposition temperatures higher than 300 °C (except poly(FVTeTh). DSC showed melting points over 200 °C and the formation of crystalline zones was found in all cases. An increase in the number of thiophene rings in the main chain resulted in a more ordered crystalline molecular structure. Moreover, the polymers presented redox processes at a potential lower than that of P3HT. The Highest Occupied Molecular Orbital (HOMO), Lowest Unoccupied Molecular Orbital (LUMO) and optical band gap (Eg) were measured and the values obtained were compared with those of P3HT. The effect caused by PV units and the increase of thiophenyl units in the chains on HOMO, LUMO, band gap, fusion, crystallinity and TGA is reported. The Eg of the monomers was greater than that of P3HT. The results showed that with respect to P3HT, polymers HOMO and LUMO are lower and in some cases by a slight change in Eg. The PV effect as an electron donor causes a decrease in the HOMO and LUMO, envisaging them as potential polymers to be studied in organic photocells.

Fluorescent sensor based on a novel conjugated polyfluorene derivative

A novel water-soluble polyfluorene derivative, poly[(9,9-bis(3′-((N, N-dimethylamino)N-ethylammonium)propyl)-2,7-fluorene)-alt-2,7-(9, 9-p-divinylbenzene)]dibromide (P-2) was synthesized by the palladium-catalyzed Suzuki coupling reaction and it's quaternized ammonium polyelectrolyte derivatives was obtained through a postpolymerization treatment on the terminal amino groups. The electrochemical and optical properties of the copolymers was fully investigated. The results showed that the new polyfluorene derivative had high electronic conductivity and strong fluorescence, therefore it had good potential to be used in chemical and biological sensors, as shown in optical sensing of bovine albumin (BSA) in this study.