Luminescence properties of three structures built from 3-cyano-4-di­cyano­methyl­ene-5-oxo-4,5-dihydro-1H-pyrrol-2-olate and alkaline metals (Na, K and Rb)

Tafeenko, V.A.; Gurskiy, S.I.; Baranov, A.N.; Kaisarova, T.V.; Aslanov, L.A.

doi:10.1107/S0108270108043783

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 4
Part of the crystal structure of the sodium salt, showing infinite anion–cation chains. Adjacent chains are connected by coordinated water molecules and π–π interactions between anions. The shortest distances between atoms of neighboring anions are 3.256 (5) (for C3—C2ⁱⁱ) and 3.272 (4) Å (for C6—C4ⁱⁱ) [symmetry code: (ii) x + 1, y, z].

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 65| Part 2| January 2009| Pages m52-m55

doi:10.1107/S0108270108043783

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