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Potassium 1,2,4,5-benzenetetracarboxylate, C6H2(CO2K)4·4H2O; its formation, crystal structure, and hydrogen bonding

✍ Scribed by John Emsley; Robert J. Parker; Reiko Kuroda

Publisher
Springer
Year
1986
Tongue
English
Weight
369 KB
Volume
16
Category
Article
ISSN
1572-8854

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## Abstract The cobaltocenium salts [Co{C~5~H~4~(B__i__Pr~2~)}~2~]PF~6~ [(1a)PF~6~] and [Co{C~5~H~4~(BMe~2~)}~2~]PF~6~ [(1b)PF~6~] are strong Lewis acids. With pyridine (1a)PF~6~ forms a mono‐adduct 2 and a di‐adduct 3 which show NMR spectra in the low‐temperature regime of pyridine exchange. With