Physicochemical Investigation on the Complexes of Co(II), Ni(II) and Cu(II) with Aminocyclodiphosph(V)azane Derivative was written by Abd-Ellah, I. M.;El-Sayed, B. A.;El-Nawawy, M. A.;Alaghaz, A. M. A.. And the article was included in Phosphorus, Sulfur and Silicon and the Related Elements in 2002.SDS of cas: 70291-62-2 This article mentions the following:
Co(II), Ni(II), and Cu(II) form 2:1 complexes with aminocyclodiphosph(V)azane derivative The complexes have been investigated in solution by the spectrophotometric molar ratio and conductometric methods. The ligand and its complexes have been isolated in solid state and characterized on the basis of microanal., IR, electronic, magnetic moment, 1H NMR and mass spectral data. The cobalt and nickel complexes were assigned to be in tetrahedral structure while the copper complex is assigned to be in square planar. In the experiment, the researchers used many compounds, for example, 2-Amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carbonitrile (cas: 70291-62-2SDS of cas: 70291-62-2).
2-Amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carbonitrile (cas: 70291-62-2) belongs to nitriles. Nitrile carbon shifts are in the range of 115–125 ppm whereas in isonitriles the shifts are around 155–165 ppm. Alkyl nitriles are sufficiently acidic to undergo deprotonation of the C-H bond adjacent to the CN group.Strong bases are required, such as lithium diisopropylamide and butyl lithium. The product is referred to as a nitrile anion. SDS of cas: 70291-62-2
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts