862801-85-2

Basic information

• Product Name: 4''-ethynyl-N,N'-bis-(1-phenyl-ethyl)-4-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine
• Synonyms: 4''-ethynyl-N,N'-bis-(1-phenyl-ethyl)-4-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine
• CAS NO: 862801-85-2
• Molecular Weight: 600.879
• Mol File: 862801-85-2.mol

Chemical Properties

• CAS DataBase Reference: 4''-ethynyl-N,N'-bis-(1-phenyl-ethyl)-4-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine(CAS DataBase Reference)
• NIST Chemistry Reference: 4''-ethynyl-N,N'-bis-(1-phenyl-ethyl)-4-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine(862801-85-2)
• EPA Substance Registry System: 4''-ethynyl-N,N'-bis-(1-phenyl-ethyl)-4-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine(862801-85-2)

Safety Data

• Hazardous Substances Data: 862801-85-2(Hazardous Substances Data)

Upstream product

• 1061619-56-4 C₄₅H₄₈N₂Si₂ 
• 541-73-1 1,3-Dichlorobenzene 
• 67277-79-6 N,N'-di-(R)-α-phenylethylcarbodiimide 
• 862801-79-4 2'-iodo-4,4''-bis-trimethylsilanylethynyl-[1,1';3',1'']terphenyl 
• 862801-81-8 N,N'-bis-(1-phenyl-ethyl)-4,4''-bis-trimethylsilanylethynyl-[1,1';3',1'']terphenyl-2'-carboxamidine 

Downstream Products

• 862801-88-5 C₈₄H₇₈N₄Si₂ 
• 946848-30-2 C₉₆H₈₆N₆Si₂ 
• 1061619-43-9 C₁₀₇H₉₆N₂O₄Si₂ 
• 1061619-30-4 C₇₆H₇₂N₂O₂Si₂ 
• 1374253-67-4 C₁₀₄H₉₈N₆O₂Si₂ 
• 1374253-69-6 C₁₀₄H₉₈N₆O₂Si₂ 
• 1374253-71-0 C₁₀₄H₉₈N₆O₂Si₂ 
• 1374253-73-2 C₁₀₄H₉₈N₆O₂Si₂ 
• 1374253-75-4 C₁₀₆H₁₀₂N₆O₂Si₂ 
• 1374253-77-6 C₁₀₄H₁₀₂N₆Si₂ 
• 1381887-43-9 C₉₂H₈₆N₄O₂Si₂ 
• 1381887-42-8 C₉₀H₇₈F₄N₄Si₂ 

Relevant articles and documents

Thermodynamic and kinetic stabilities of complementary double helices utilizing amidinium-carboxylate salt bridges

A series of dimer strands consisting of m-terphenyl backbones bearing complementary chiral or achiral amidines and achiral carboxylic acid residues connected by various types of linkers, such as diacetylene, Pt(II)-acetylide, and p-diethynylbenzene linkag

Synthesis of complementary double-stranded helical oligomers through chiral and achiral amidinium-carboxylate salt bridges and chiral amplification in their double-helix formation

A series of complementary molecular strands from 2-mer to 5-mer that are composed of m-terphenyl units bearing chiral/achiral amidine or achiral carboxyl groups linked via Pt(II) acetylide complexes were synthesized by sequential stepwise reactions, and their chiroptical properties on the double-helix formation were investigated by circular dichroism (CD) and 1H NMR spectroscopies. In CHCl3, the "all-chiral" amidine strands consisting of (R)- or (S)-amidine units formed preferred-handed double helices with the complementary achiral carboxylic acid strands through the amidinium-carboxylate salt bridges, resulting in characteristic induced CDs in the Pt(II) acetylide complex regions, indicating that the chiral substituents on the amidine units biased a helical sense preference. The Cotton effect patterns and intensities were highly dependent on the molecular lengths. The complementary double-helix formation was also explored using the chiral/achiral amidine strands with different sequences in which a chiral amidine unit was introduced at the center (center-chiral) or a terminus (edge-chiral) of the amidine strands. The effect of the sequences of the chiral and achiral amidine units on the amplification of chirality (the "sergeants and soldiers" effect) in the double-helix formation was investigated by comparing the CD intensities with those of the corresponding all-chiral amidine double helices with the same molecular lengths. Variable-temperature CD experiments of the all-chiral and chiral/achiral amidine duplexes demonstrated that the Pt(II)-linked complementary duplexes are dynamic and their chiroptical properties including the chirality transfer from the chiral amidine unit to the achiral amidine ones are significantly affected by the molecular lengths, sequences, and temperatures. On the basis of the above results together with molecular dynamics simulation results, key structural features of the Pt(II)-linked oligomer duplexes and the effect of the chiral/achiral amidine sequences on the amplification of chirality are discussed.

A modular strategy to artificial double helices

(Figure Presented) No metal required: Double-helical assemblies can be constructed through hydrogen bonds upon formation of amidinium-carboxylate salt bridges (see schematic representation). The double-helical structures formed including the helix sense a