Category: 74029-40-6

COA of Formula: C12H10O2On September 22, 2009 ,《Synthesis and Photostability of Poly(p-phenylenevinylene-borane)s》 was published in Macromolecules (Washington, DC, United States). The article was written by Nagai, Atsushi; Murakami, Takuya; Nagata, Yuuya; Kokado, Kenta; Chujo, Yoshiki. The article contains the following contents:

Electron donor-acceptor poly(p-phenylenevinyleneborane)s (PPVBs) with various side groups, were prepared by hydroboration polymerization of 2,4,6-Triisopropylphenylborane and diethynylbenzene monomers and the photooxidative stability was studied. The obtained polymers emitted blue-to-green light at 437-505 nm and the quantum yield was FF = 0.3-0.5. The photostability of the polymers was measured under continuous UV irradiation using a UV lamp. The stability was a function of electron d. of substituent groups in monomers, except for a trifluoromethyl-containing monomer. The results came from multiple reactions, including the reaction of 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6COA of Formula: C12H10O2)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Ethers do have nonbonding electron pairs on their oxygen atoms, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.COA of Formula: C12H10O2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Name: 1,4-Diethynyl-2,5-dimethoxybenzeneOn October 28, 2014 ,《Natural α-Amino Acid-Functionalized Poly(phenyleneethynylene)s (PPEs): Synthesis and Chiroptical Characterization of Aggregate States》 was published in Macromolecules (Washington, DC, United States). The article was written by Resta, Claudio; Pescitelli, Gennaro; Di Bari, Lorenzo. The article contains the following contents:

The synthesis of several novel poly(phenyleneethynylene)s (PPEs) functionalized with different natural α-amino acids Me esters has been achieved through Cassar-Heck-Sonogashira reaction. Five different derivatives have been prepared varying the nature of the amino acid (Gly, Leu, N-Me Leu, Phe, and Val), and their aggregation behavior has been investigated by means of UV-vis absorption, CD, and fluorescence spectroscopies in different conditions of aggregation. ECD measurements provided unique information about the structural organization of the aggregates dispersed in solution and as thin films. The effects of the nature of the amino acidic moiety, the consequences of chirality, and the role played by intermol. hydrogen bonds have been elucidated. The results came from multiple reactions, including the reaction of 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Name: 1,4-Diethynyl-2,5-dimethoxybenzene)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however. Name: 1,4-Diethynyl-2,5-dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Category: ethers-buliding-blocksOn September 30, 2011 ,《Synthesis, characterization, and properties of conjugated binuclear bis-terpyridyl ruthenium complexes》 was published in Transition Metal Chemistry (Dordrecht, Netherlands). The article was written by Jin, Guo Jun; Chen, Gang; Xia, Jian Long; Yin, Jun; Yu, Guang-Ao; Liu, Sheng Hua. The article contains the following contents:

A series of binuclear bis-terpyridyl ruthenium complexes with different substituents, [Ru2(L)2(μ-La)](PF6)4 (L = 4′-(p-tolyl)-4,4”-dicarboxyterpyridine, La = 1,4-bis(4-(4,4”-dicarboxyterpyrid-4′-yl)phenylethynyl)-2,5-R2-benzene, R = H, Me, OMe, OC6H13) were synthesized and characterized by physicochem. and spectroscopic methods. The UV/visible and fluorescence spectra indicated that the non-substituted binuclear bis(terpyridyl) ruthenium(II) complex has similar properties to those with electron-donating groups such as Me and alkoxyl on the organic conjugated bridge benzene units. Furthermore, similar oxidation-reduction potentials were observed according to their electrochem. properties in CH2Cl2 solution In addition to this study using 1,4-Diethynyl-2,5-dimethoxybenzene, there are many other studies that have used 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Category: ethers-buliding-blocks) was used in this study.

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Category: ethers-buliding-blocksAlthough ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhao, Baohai; Lin, Jimao; Zhao, Cuihua; Wang, Ziying published an article in Acta Crystallographica, Section E: Structure Reports Online. The title of the article was 《1,4-Dimethoxy-2,5-bis{2-[4-(trifluoromethyl)phenyl]ethynyl}benzene》.Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzene The author mentioned the following in the article:

The asym. unit of the title compound, C26H16F6O2, contains one half of the mol. situated on an inversion center. In the rod-like mol., the two terminal benzene rings form a dihedral angle of 71.9 (1)° with the central benzene ring. The trifluoromethyl group is rotationally disordered over two orientations in a 0.53 (1):0.47 (1) ratio. The crystal packing exhibits no classical intermol. interactions. The results came from multiple reactions, including the reaction of 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzene)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzeneAlthough ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

《New molecular wires with two ferrocene hinges [Erratum to document cited in CA150:77763]》 was published in Journal of Inorganic and Organometallic Polymers and Materials in 2012. These research results belong to Ma, Jingxiang; Vollmann, Marc; Menzel, Henning; Pohle, Sven; Butenschoen, Holger. Product Details of 74029-40-6 The article mentions the following:

On page 48, the 1H NMR and HRMS data for compound 17 contained errors; the corrected data are given. The experimental process involved the reaction of 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Product Details of 74029-40-6)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Ethers do have nonbonding electron pairs on their oxygen atoms, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. Product Details of 74029-40-6 The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Bruce, Michael I.; Head, Nicholas J.; White, Allan H.; Skelton, Brian W. published an article on January 31 ,2004. The article was titled 《1,4-Diethynyl-2,5-dimethoxybenzene at ca 150 K》, and you may find the article in Acta Crystallographica, Section C: Crystal Structure Communications.Formula: C12H10O2 The information in the text is summarized as follows:

The principal determinants of packing in crystals of the title compound, C12H10O2, which has crystallog. imposed inversion symmetry, are interactions between the alkyne H atoms and the methoxy O atoms [H···O = 2.39(1) Å]. Crystallog. data are given. In the experiment, the researchers used many compounds, for example, 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Formula: C12H10O2)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Formula: C12H10O2Although ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem