Hydrogen-bonded assembly in six closely related pyrazolo­[3,4-b]pyridine derivatives; a simple chain, three types of chains of rings and a complex sheet structure

Quiroga, J.; Díaz, Y.; Cobo, J.; Glidewell, C.

doi:10.1107/S0108270111050207

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

IUCr IT WDC

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Figure 7
Part of the crystal structure of (I)

, showing the formation of a chain of rings along [010]. For the sake of clarity, H atoms not involved in the motif shown have been omitted. Atoms marked with an asterisk (*), hash (#), dollar sign ($) or ampersand (&) are at the symmetry positions (−x + $[{3\over 2}]$ , y − $[{1\over 2}]$ , −z + $[{1\over 2}]$ ), (x, y − 1, z), (−x + $[{3\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ) and (x, y + 1, z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 68| Part 1| December 2012| Pages o12-o18

doi:10.1107/S0108270111050207

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