《(Di-tert-butylphosphinylethyl)cyclopentadienylnickel Chelates with Alkyl, Alkenyl, Aryl, and Alkynyl Ligands: Hints to Cumulenylidene Resonance Forms》 was published in European Journal of Inorganic Chemistry in 2018. These research results belong to Kohser, Stefanie; Butenschoen, Holger. COA of Formula: C12H10O2 The article mentions the following:
Cyclopentadienylalkylphosphine chelate complexes were studied in depth for many transition metals, but to a much lesser extent for Ni. From earlier studies of cyclopentadienylalkylphosphine Ni chelates, a number of new alkyl, aryl, alkenyl, and alkynyl complexes, including some bearing functional groups, were prepared and fully characterized. These include for the 1st time di- and trimetallic complexes as well as compounds with a ferrocene unit as part of the extended π system. A number of quaternized 2-pyridylethynyl complexes are presented, for which cyclovoltammograms, NMR spectroscopic data, and DFT calculations provide hints to a significant contribution of cumulenylidene resonance forms. In the part of experimental materials, we found many familiar compounds, such as 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.COA of 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