67973-34-6

Basic information

• Product Name: BIS(4-IODOPHENYL)ACETYLENE
• Synonyms: BIS(4-IODOPHENYL)ACETYLENE
• CAS NO: 67973-34-6
• Molecular Formula: C₁₄H₈I₂
• Molecular Weight: 430.02
• Mol File: 67973-34-6.mol
• Article Data: 8

Chemical Properties

• Melting Point: 243-245
• Boiling Point: 415.241 °C at 760 mmHg
• Flash Point: 210.308 °C
• Appearance: /
• Density: 2.091 g/cm³
• CAS DataBase Reference: BIS(4-IODOPHENYL)ACETYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(4-IODOPHENYL)ACETYLENE(67973-34-6)
• EPA Substance Registry System: BIS(4-IODOPHENYL)ACETYLENE(67973-34-6)

Safety Data

• Hazardous Substances Data: 67973-34-6(Hazardous Substances Data)

Upstream product

• 191094-12-9 4-[(4-iodophenyl)ethynyl]aniline 
• 6052-15-9 4,4'-(ethyne-1,2-diyl)dianiline 
• 100726-99-6 1-iodo-4-((phenylsulfonyl)methyl)benzene 
• 15164-44-0 p-(iodophenyl)carboxaldehyde 
• 624-31-7 4-tolyl iodide 
• 18282-51-4 4-iodo-benzyl alcohol 
• 16004-15-2 1-bromomethyl-4-iodobenzene 
• 61130-13-0 [(4-iodophenyl)methyl]triphenylphosphanium bromide 
• 540-37-4 p-aminoiodobenzene 
• 98094-44-1 4,4'-diiodostilbene 
• 14235-81-5 4-Ethynylaniline 
• 82815-75-6 <4-(4-aminophenyl)>-2-methyl-3-butyn-2-ol 
• 591-50-4 iodobenzene 
• 5121-69-7 1,1-dichloro-2,2-bis-(4-iodo-phenyl)-ethane 

Downstream Products

• 65699-84-5 1,2-di(4-iodophenyl)-1,2-ethanedione 
• 599187-67-4 C₅₀H₅₀Si₄ 
• 191978-49-1 tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I) 
• 191931-67-6 phenyl[4-(1,12-dicarba-closo-dodecaboran-1-yl)phenyl]acetylene 
• 191931-64-3 bis[4-(1,12-dicarba-closo-dodecaboran-1-yl)phenyl]acetylene 
• 71482-44-5 1,2-bis(4-iodophenyl)-ortho-carborane 

Relevant articles and documents

4-iodophenyl substituted carborane derivative and preparation method thereof

The invention discloses a 4-iodophenyl carborane derivative and a preparation method thereof. Commercialized organic reagents 4-iodoaniline and a diacetonitrile decaborate complex and several easily-synthesized substituted alkynes are adopted as the start

How Large Can We Build a Cyclic Assembly? Impact of Ring Size on Chelate Cooperativity in Noncovalent Macrocyclizations

Self-assembled systems rely on intramolecular cooperative effects to control their growth and regulate their shape, thus yielding discrete, well-defined structures. However, as the size of the system increases, cooperative effects tend to dissipate. We analyze here this situation by studying a set of oligomers of different lengths capped with guanosine and cytidine nucleosides, which associate in cyclic tetramers by complementary Watson–Crick H-bonding interactions. As the monomer length increases, and thus the number of C(sp)–C(sp2) σ-bonds in the π-conjugated skeleton, the macrocycle stability decreases due to a notable reduction in effective molarity (EM), which has a clear entropic origin. We determined the relationship between EM or ΔS and the number of σ-bonds, which allowed us to predict the maximum monomer lengths at which cyclic species would still assemble quantitatively, or whether the cyclic species would not able to compete at all with linear oligomers over the whole concentration range.

Synthesis of nanostructures based on 1,4- and 1,3,5-ethynylphenyl subunits with π-extended conjugation. Carbon dendron units

Nanometer-sized conjugated 1,4- and 1,3,5-ethynylphenyl oligomers were synthesized starting from 3,5-di(trimethylsilylethynyl)phenylacetylene and p-[3,5-di(trimethylsilylethynyl)-1-ethynylphenyl]-phenyl acetylene by cross-coupling reaction with a convenient haloaryl derivative, catalyzed by palladium(II)/copper(I), in excellent yield. The terminal acetylenes were efficiently prepared by a specific protection-deprotection methodology. All ethynylphenyl homologues obtained show fluorescence emission, with the bathochromic shift of approximately 20 nm by each ethynylphenyl unit increasing the conjugate chain. Parallel conjugated ethynylphenyl chains were prepared through the insertion of a 1,5-naphthalene subunit, and the compounds exhibit fluorescence radiation emission.