45966-93-6

Upstream product

• 81854-48-0 N-[(4-trimethylsilanylethynyl)phenyl]formamide 
• 14235-81-5 4-Ethynylaniline 
• 109-94-4 formic acid ethyl ester 
• 6393-17-5 N-(4-iodo-phenyl)-formamide 
• 540-37-4 p-aminoiodobenzene 
• 64-18-6 formic acid 
• 937-31-5 (4-Nitrophenyl)acetylene 
• 106-40-1 4-bromo-aniline 
• 75867-39-9 4-trimethylsilylethynyl aniline 

Downstream Products

• 421554-56-5 N-[4-(2-amino-5-nitro-4-phenylethynyl-phenylethynyl)-phenyl]-formamide 
• 946073-27-4 C₇₇H₉₇NO₈S 
• 946073-46-7 C₆₉H₉₁NO₇ 
• 946073-26-3 N-{4-[4-(4-{2,5-Bis-hexyloxy-4-[(triisopropylsilanyl)-ethynyl]-phenylethynyl}-2,5-bis-hexyloxy-phenylethynyl)-2,5-bis-hexyloxy-phenylethynyl]-phenyl}-formamide 
• 946073-19-4 C₅₇H₆₉NO₆S 
• 946073-18-3 N-{4-[4-(4-ethynyl-2,5-bis-hexyloxy-4-phenylethynyl)-2,5-bis-hexyloxy-phenylethynyl]-phenyl}-formamide 
• 946073-17-2 N-[4-(4-{2,5-bis-hexyloxy-4-[(triisopropylsilanyl)-ethynyl]-phenylethynyl}-2,5-bis-hexyloxy-phenyl-ethynyl)-phenyl]-formamide 
• 946073-15-0 thioacetic acid S-{4-[4-(4-formylamino-phenyl-ethynyl)-2,5-bis-hexyloxy-phenylethynyl]-phenyl} ester 
• 946073-14-9 N-[4-(4-ethynyl-2,5-bis-hexyloxy-phenylethynyl)-phenyl]-formamide 
• 946073-13-8 N-(4-{2,5-bis-hexyloxy-4-[(triisopropylsilanyl)-ethynyl]-phenylethynyl}-phenyl)-formamide 

Relevant academic research and scientific papers

Cobalt Entrapped in N,S-Codoped Porous Carbon: Catalysts for Transfer Hydrogenation with Formic Acid

Catalysts with Co nanoparticles (NPs) entrapped in N,S-codoped carbon shells were successfully fabricated by pyrolysis of porous organic polymers (POPs) with cobalt salts. The encapsulated structure consisting of Co NPs and N,S-codoped carbon layers was verified by TEM, XRD, and X-ray photoelectron spectroscopy. The catalysts displayed excellent activity and stability for the catalytic transfer hydrogenation (CTH) of nitrobenzene with formic acid under base-free conditions. Furthermore, the resultant catalysts allowed for highly efficient and selective transfer hydrogenation of various functionalized nitroarenes to the corresponding anilines. Through control experiments, the covered Co NPs were identified as active sites for CTH. The incorporation of S into the N-doped carbon lattice promoted the electron transfer from metallic cobalt NPs to their shells, which played a significant role in the acceleration of CTH. Moreover, the Co-NSPC-850 catalyst pyrolyzed at 850 °C showed excellent stability in the recycling experiments.

An effective, orthogonal deprotection strategy for differentially functionalized, linear and Y-shaped oligo phenylene ethynylenes

Several methodologies for the selective deprotection acetylenes have been reported previously. However, as is shown here, they are often not reliable or convenient. Here, an approach is reported that is efficient and general. Use of this approach to synth

Improved and new syntheses of potential molecular electronics devices

New syntheses of ethyl and nitro substituted oligo(phenylene ethynylene)s (OPEs) have been developed. To further explore whether the presence of nitro functionality in OPEs leads to switching and memory capabilities, new nitro substituted OPEs have been designed and synthesized. An isatogen-based system, a structure that is isomeric to the nitro OPE, has been synthesized. Additionally, pyridine-based and chromium-based compounds have been synthesized. We surmise that redox reactions of these candidates may impart switching capabilities and electrochemical studies are shown. U-shaped OPEs were synthesized to inhibit leakage of metals deposited during formation of top contacts on self-assembled monolayers (SAMs). The OPEs contain either thiol-based moieties or isonitrile groups to enable formation of SAMs on metal substrates.

Synthesis and preliminary testing of molecular wires and devices

Presented here are several convergent synthetic routes to conjugated oligo(phenylene ethynylene)s. Some of these oligomers are free of functional groups, while others possess donor groups, acceptor groups, porphyrin interiors, and other heterocyclic interiors for various potential transmission and digital device applications. The syntheses of oligo(phenylene ethynylene)s with a variety of end groups for attachment to numerous metal probes and surfaces are presented. Some of the functionalized molecular systems showed linear, wire-like, current versus voltage (I(V)) responses, while others exhibited nonlinear I(V) curves for negative differential resistance (NDR) and molecular random access memory effects. Finally, the syntheses of functionalized oligomers are described that can form self-assembled monolayers on metallic electrodes that reduce the Schottky barriers. Information from the Schottky barrier studies can provide useful insight into molecular alligator clip optimizations for molecuar electronics.

Development of a T-joint for covalent molecular construction based on 2,2′-bipyridine and phenanthroline isocyanide metal complexes

Tetracarbonylmolybdenum and halotricarbonylrhenium complexes of laterally extendable or laterally extended bipyridines such as 5,5′-dibromo-2,2′-bipyridine, 5,5′-bis(trimethylsilylethynyl)-2,2′-bipyridine, or 3,8-dibromophenanthroline have been prepared.