128534-86-1

Upstream product

• 1057407-31-4 [(3-cyanopropyl)diisopropylsilyl]acetylene 
• 153033-31-9 1,4-bis(hexyloxy)-2,5-diiodobenzene 
• 1066-54-2 trimethylsilylacetylene 
• 128424-36-2 2,5-dihexyloxy-1,4-dibromobenzene 
• 773060-37-0 1-bromo-2,5-bis(hexyloxy)-4-iodobenzene 
• 202798-00-3 2-bromo-1,4-bis(hexyloxy)benzene 
• 123-31-9 hydroquinone 
• 67399-93-3 1,4-dihexyloxybenzene 
• 111-25-1 1-bromo-hexane 

Downstream Products

• 502904-17-8 C₆₈H₁₀₂O₆Si₂ 
• 502904-18-9 2,5-[5-HC₂-1,4-(Me(CH₂)5O)2C₆H₂-2-C₂]2-1,4-(Me(CH₂)5O)2C₆H₂ 
• 128424-37-3 1,4-diethynyl-2,5-bis-hexyloxy-benzene 
• 752233-73-1 {4-[2,5-bis(hexyloxy)-4-(4-iodophenylethynyl)phenylethynyl]phenylethynyl}-trimethylsilane 
• 752233-88-8 1,4-bis(hexyloxy)-2,5-bis(4-trimethylsilanylethynylphenylethynyl)benzene 
• 752233-75-3 1,4-bis(4-ethynylphenylethynyl)-2,5-bis(hexyloxy)benzene 
• 752233-87-7 1,4-bis(hexyloxy)-2,5-bis(4-iodophenylethynyl)benzene 
• 752233-86-6 1,4-bis(4-bromophenylethynyl)-2,5-bis(hexyloxy)benzene 

Relevant academic research and scientific papers

Ferrocene metallopolymers of intrinsic microporosity (MPIMs)

We show here that non-network metallopolymers can possess intrinsic microporosity stemming from contortion introduced by metallocene building blocks. Metallopolymers constructed from ferrocenyl building blocks linked by phenyldiacetylene bridges are synth

Linker-Dependent Singlet Fission in Tetracene Dimers

Separation of triplet excitons produced by singlet fission is crucial for efficient application of singlet fission materials. While earlier works explored the first step of singlet fission, the formation of the correlated triplet pair state, the focus of

Polytriazole bridged with 2,5-diphenyl-1,3,4-oxadiazole moieties: A highly sensitive and selective fluorescence chemosensor for Ag+

Fluorescent conjugated polytriazoles (FCP 1-4) containing both 2,5-diphenyl-1,3,5-oxadiazole (OXD) and 1,2,3-triazole moieties in the main chain were synthesized from aromatic diazide (1) and dialkynes (2-5) via click polymerization, respectively. In the polymers, OXDs (fluorophores) and triazole rings (generated via CuAAC acting as metal ion ligands) comprise a fluorescent system. The polytriazoles displayed relatively strong emission with quantum yields in the range of 0.20-0.28 at room temperature in DMF. The study on their ion-responsive properties showed that, although all four FCPs have good selectivity for Ag+, the integration of alkoxy side groups (methoxy for FCP 2, hexyloxy for FCP 3 and 2-ethylhexyloxy for FCP 4) to the main chains of the polytriazoles decreased their sensitivity for Ag+via alteration of the polymer aggregation status and electron density of the main chains. Thus FCP 1 is highly sensitive for Ag+, where its Ksv is as high as 1.44 × 105 M-1 and its lowest detection limit is in the ppb range (4.22 × 10-7 M). This study provides an efficient click approach to the synthesis of a novel fluorescence sensor for Ag+ detection, which could expand the application of click polymerization in designing fluorescence sensors based on the triazole unit. This journal is

Linear bimetallic alkynylplatinum(II) terpyridyl complexes bearing p-phenylene ethynylene oligomers: Synthesis, characterization, aggregation, and photophysical properties

The series of luminescent bimetallic alkynylplatinum(II) terpyridyl complexes [(tBu3-tpy)PtC≡C(ArC≡C)nPt(tBu 3-tpy)](PF6)2 (I-IV; tBu3-tpy = 4,4′,4″-tritertbutyl-2,2′:6′,2″-terpyridine, Ar

Synthesis and characterization of a fluorescent polymer containing 2,6-bis(2-thienyl)pyridine moieties as a highly efficient sensor for Pd 2+ detection

A novel conjugated polymer chemosensor 1 containing 2,6-bis(2-thienyl) pyridine has been synthesized and exhibits a high sensitivity and selectivity for palladium ion detection based on the fluorescent quenching effect.

Metal ion detection by luminescent 1,3-bis(dimethylaminomethyl) phenyl receptor-modified chromophores and cruciforms

Chromophores ranging from simple small molecule π-conjugated systems comprised of phenylene ethynylene or fluorenylethynyl units to cross-conjugated Bunz-type cruciforms have been derivatized to include 1,3- bis(dimethylaminomethyl)phenyl moieties. The photophysical responsiveness of these diamino-substituted chromophores to metal ions has been examined. Both emission enhancement (turn-on) and ratiometric fluorescence detection of Cu 2+ and Zn2+ ions have been achieved in THF.

Oligomers and cyclooligomers of rigid phenylene-ethynylene-butadiynylenes: Synthesis and self-assembled monolayers

Starting from the same bisacetylene, different reaction conditions (palladium or copper catalysis) selectively yielded cyclic or acyclic oligomers with n=2-6 (see picture for n=3) linked by freely rotating corner units. STM images of self-assembled monola

Directional hydrogen bonding controlled 2D self-organization of phenyleneethynylenes: From linear assembly to rectangular network

The effect of the carboxylic acid substituent position of phenyleneethynylene systems on the 2D self-organization is revealed by scanning tunneling microscopy.

Fluorescent conjugated polymer nanoparticles by polymerization in miniemulsion

Highly fluorescent conjugated polymer nanoparticles were prepared directly by polymerization in aqueous miniemulsion, employing Glaser coupling polymerization as a suitable step-growth reaction. A 4,4′-dinonyl-2, 2′-bipyridine-modified catalyst was found to be suited for the polymerization in the aqueous heterophase system. Nanoparticles of poly(arylene diethynylenes) (arylene = 2,5-dialkyoxy phenylenes and 9,9′-dihexyl fluorene) with molecular weights in the range of Mn 104 to 105 g mol-1 and with sizes of ≤30 nm, as observed by TEM, result. N,N′-Di(4-ethynylphenyl)-1,7-di[4-(1,1,3,3-tetramethylbutyl) phenoxy]-perylene-3,4:9,10-tetracarboxdiimide or 2,7-diethynylfluorenone was converted completely during the heterophase polymerization to afford colloidally stable nanoparticles of poly(arylene diethynylenes) with 0.1-2 mol % covalently incorporated perylene dye and 2-9 mol % of covalently incorporated fluorenone dye, respectively. Fluorescence spectroscopy of the aqueous dispersions reveals an efficient energy transfer to the dye in the nanoparticles, which enables a variation of the luminescence emission color between red (λem (max.) ca. 650 nm) and the green emission of the nanoparticles without dye.

[(3-Cyanopropyl)diisopropylsilyl] acetylene, a more stable analogue of [(3-Cyanopropyl)dimethylsilyl]acetylene

The preparation and application of a new alkyne protecting group is presented. The reactivity and stability of [(3-cyanopropyl)diisopropylsilyl] acetylene is similar to that of the well-known (triisopropylsilyl)acetylene. Its high polarity simplifies chromatographic separation after coupling to aromatics with more than one reactive site. Moreover, compounds with more than one [(3-cyanopropyl)diisopropylsilyl]acetylene group are easily purified after partial deprotection. Georg Thieme Verlag Stuttgart.