221292-48-4

Upstream product

• 123-31-9 hydroquinone 
• 3898-41-7 1,4-dipropoxybenzene 

Downstream Products

• 221292-49-5 1,4-bis(propyloxy)-2-iodo-5-trimethylsilylacetylenebenzene 
• 406721-38-8 1-iodo-2,5-dipropoxy-4-triisopropylsilylethynylbenzene 
• 406721-39-9 2,5-dipropoxy-1,4-bis(triisopropylsilylethynyl)benzene 
• 406721-37-7 2,5-dipropoxy-1,4-bis(trimethylsilylethynyl)benzene 
• 1338801-59-4 4-((bis(4-(hexyloxy)phenyl)amino)styryl)-2,5-(dipropoxyphenyl)-2-cyanoacrylic acid 
• 1338801-58-3 4-(4-(bis(4-(hexyloxy)phenyl)amino)styryl)-2,5-dipropoxybenzaldehyde 
• 1360743-97-0 4-iodo-2,5-dipropoxybenzaldehyde 
• 221292-50-8 1,4-dipropyloxy-2-(2-triisopropylsilylethynyl)-5-(2-trimethylsilylethinyl)benzene 
• 221292-51-9 1,4-dipropyloxy-2-ethynyl-5-(2-triisopropylsilylethinyl)benzene 
• 406721-48-0 4-(2,5-dipropoxyphenylethynyl)-1-[2,5-dipropoxy-4-(triisopropylsilylethynyl)phenylethynyl]2,5-dipropoxybenzene 
• 406721-49-1 1-(2,5-dipropoxyphenylethynyl)-4-[4-ethynyl-2,5-dopropoxyphenylethynyl]-2,5-dipropoxybenzene 
• 406721-43-5 1,4-diethynyl-2,5-dipropoxybenzene 

Relevant academic research and scientific papers

Tuning the moisture and thermal stability of metal-organic frameworks through incorporation of pendant hydrophobic groups

An isostructural series of NbO-type porous metal-organic frameworks (MOFs) with different dialkoxy-substituents of formula Cu2(TPTC-OR) (TPTC-OR = 2′,5′-di{alkyl}oxy-[1,1′:4′,1″-terphenyl]-3, 3″,5,5″-tetracarboxylate, R = Me, Et, nPr, nHex) has been synthesized and characterized. The moisture stability of the materials has been evaluated, and a new superhydrophobic porous MOF has been identified. The relationship between pendant side chain length and thermal stability has been analyzed by in situ synchrotron powder X-ray diffraction, showing decreased thermal stability as the side chain length is increased, contradictory to thermogravimetric decomposition studies. Additionally, the four materials exhibit moderate Brunauer-Emmett-Teller (BET) and Langmuir surface areas (1127-1396 m2 g-1 and 1414-1658 m2 g -1) and H2 capacity up to 1.9 wt % at 77 K and 1 bar.

Alkyloxy substituted organic dyes for high voltage dye-sensitized solar cell: Effect of alkyloxy chain length on open-circuit voltage

Three novel organic dyes (SB1, SB2, and SB3) containing 4-(hexyloxy)-N-(4-(hexyloxy)phenyl)-N-phenylaniline as electron donor and cyanoacrylic acid as electron acceptor bridged by alkyloxy (methyl = SB1, propyl = SB2 and hexyl = SB3) substituted p-phenylenevinylene linkers have been synthesized. Density functional theory (DFT) has employed to study electron distribution and intramolecular charge transfer. Increase in alkyl chain length in alkyloxy substituent leads to increase in open-circuit voltage (V OC), which is found to be related to the increased electron lifetime at open-circuit condition. Under AM 1.5 G 1 sun light illumination (100 mW/cm2), an optimized SB3-sensitized cell show a short-circuit photocurrent density (JSC) of 12.83 mA/cm2, an open-circuit voltage (VOC) of 0.745 V and a fill factor (FF) of 0.64, corresponding to an overall conversion efficiency (η) of 6.12%. Little degradation in η observed over 40 days is indicative of long-term stability of the SB-series dyes.

Preparation and nonlinear optics of monodisperse oligo(1,4-phenyleneethynylene)s

Oligo(1,4-phenyleneethynylene)s 1a-e, with solubilizing propoxy side chains, were prepared by use of Hagihara-Sonogashira coupling reactions. The synthetic strategy was based on a building block system and on the use of trimethylsilyl and triisopropylsily