Wu, Xiang-Hua’s team published research in Organometallics in 2010 | CAS: 74029-40-6

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Safety of 1,4-Diethynyl-2,5-dimethoxybenzene Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other.

Safety of 1,4-Diethynyl-2,5-dimethoxybenzeneOn March 8, 2010, Wu, Xiang-Hua; Liang, Jin Hua; Xia, Jian-Long; Jin, Shan; Yu, Guang-Ao; Liu, Sheng Hua published an article in Organometallics. The article was 《Bimetallic Ruthenium Complexes: Synthesis, Characterization, and the Effect of Appending Long Carbon Chains to Their Bridges》. The article mentions the following:

A series of binuclear ruthenium complexes [RuCl(CO)(PMe3)3]2(μ-CH=CH-Ar-CH=CH) (Ar = C6H2(OR)2-2,5; R = CH3 (4a), nC4H9 (4b), nC6H13 (4c), nC8H17 (4d), nC10H21 (4e), nC12H25 (4f), nC14H29 (4g)), [RuCl(CO)(PMe3)3]2(μ-CH=CH-Ar--Ar-CH=CH) (Ar = C6H2(R)2-2,5; R = OCH3 (10a), OnC8H17 (10b), H (10c)), and [RuCl(CO)(PMe3)3]2(μ-CH=CH-Ar--Ar--Ar-CH=CH) (Ar = C6H2(R)2-2,5; R = OCH3 (13a), OnC8H17 (13b), H (13c)) have been synthesized. These complexes have been characterized by elemental anal., NMR, and UV/vis spectrophotometry. The structures of 4b and 4d have been determined by x-ray crystallog. Electrochem. studies have shown that long carbon chains attached to the bridges of the complexes facilitate the stability of mixed-valence bimetallic ruthenium complexes.1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Safety of 1,4-Diethynyl-2,5-dimethoxybenzene) was used in this study.

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Safety of 1,4-Diethynyl-2,5-dimethoxybenzene Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other.

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