Synthesis and Properties of Hybrid Halobismuthates of N-Acetonylpyridinium Derivatives

New hybrid N -acetonylpyridinium, N -(ω-iodoacetonyl)pyridinium, and N -acetonyl-2,6-dimethylpyridinium halobismuthates I – VII have been synthesized and structurally characterized. A preparative method of synthesis is proposed for compounds I , III , and VII , and some individual crystals have been managed to separate and characterize for compounds II , IV – VI . A new type of {K[BiBr 6 ] 1D-chains with K + cations has been revealed in the structure of [C 8 H 10 NO] 2 K[BiBr 6 ] ( II ). N-acetonyl-2,6-dimethylpyridinium bromobismuthates [C 10 H 14 NO] 3 [Bi 2 Br 9 ] V and VI (space group P 2 1 / n ) are polymorphs of similar structure. Iodobismuthates [C 8 H 10 NO] 4 [Bi 4 I 16 ] ( III ) and [C 10 H 14 NO] 4 [Bi 4 I 16 ]⋅0.69I 2 ( VII ) are built of [Bi 4 I 16 ] 4– anions, and [Bi 4 I 16 ] moieties in the structure of VII are linked into a 1D-anionic chain by molecules I 2 .