SEARCH Articles Figures Tables IR spectra of K2NbF7 undergoing melting in an inert atmosphere publishing. [Publishers Imprint] See Also: IR spectra of K2NbF7 undergoing melting in an inert atmosphere publishing. IR spectra of K2NbF7 undergoing melting in an inert atmosphere publishing. IR spectra of K2NbF7 undergoing melting in an inert atmosphere publishing.