Аннотация:Abstract The crystal structure analyses of Reinecke’s salt, pyridine reineckate and choline reineckate established the configuration and bond characters of the reineckate complex ion, [Cr(NCS)4(NH3)2]−. The bond character of the complex ion in Reinecke’s salt and pyridine reineckate corresponds to the structure N≡C–S−, while in choline reineckate the bond character is acounted for by the structure N−=C=S. This mutation of the bond character is discussed together with crystal structures of these reineckates.
