4,4′-[8b,8c-Bis(ethoxycarbonyl)-4,8-dioxo-2,3,5,6-tetra­hydro-1H,4H-2,3a,4a,6,7a,8a-hexa­azacyclo­penta­[def]fluorene-2,6-diyl]dipyridinium bis­(tetra­fluorido­borate)

Qin, S.-Q.; Pang, T.; Li, Y.-T.

doi:10.1107/S1600536808023635

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 1 The molecular structure of (I) with 50% probability displacement ellipsoids (arbitrary spheres for H atoms). Only major components of the disordered groups of atoms are shown.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 64| Part 9| August 2008| Page o1689

doi:10.1107/S1600536808023635

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