2-Acetylpyridinium 3-amino-2-chloropyridinium tetrachloridocobaltate(II)
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چکیده
In the title complex, (C(5)H(6)ClN(2))(C(7)H(8)NO)[CoCl(4)], the Co(II) ions are tetra-hedrally coordinated. The crystal structure is built from hydrogen-bonded centrosymmetric tetra-mers of tetra-chloridocobaltate(II) dianions and 3-amino-2-chloro-pyridinium cations, additionally strengthened by significant π-π stacking of pyridinium rings [interplanar distance 3.389 (3) Å]. The tetra-mers are linked by N-H⋯Cl hydrogen bonds into chains; the second kind of cations, viz. 2-acetyl-pyridinium, are connected by N-H⋯Cl hydrogen bonds to both sides of the chain. The Co-Cl bond lengths in the dianion correlate with the number of hydrogen bonds accepted by the Cl atom. An intramolecular C-H⋯Cl interaction is also present.
منابع مشابه
2-Amino-5-chloropyridinium nitrate
The title structure, C(5)H(6)ClN(2) (+)·NO(3) (-), is held together by extensive hydrogen bonding between the NO(3) (-) ions and 2-amino-5-chloro-pyridinium H atoms. The cation-anion N-H⋯O hydrogen bonds link the ions into a zigzag- chain which develops parallel to the b axis. The structure may be compared with that of the related 2-amino-5-cyano-pyridinium nitrate.
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