Title of article
Partial charge transfer in the salt co-crystal of L-ascorbic acid and 4,4′-bipyridine
Author/Authors
Sylvester, Eric 730 Natural Sciences Complex, Buffalo, USA , McGovern, Mitchell 730 Natural Sciences Complex, Buffalo, USA , Lee, An Young 730 Natural Sciences Complex, Buffalo, USA , Nguyen, Phanxico 730 Natural Sciences Complex, Buffalo, USA , Park, Jungeun 730 Natural Sciences Complex, Buffalo, USA , Benedict, Jason B. 771 Natural Sciences Complex, Buffalo, USA
Pages
10
From page
1
To page
10
Abstract
In the title 1:2 co-crystal, C10H9N2+·(C6H7.75O6·C6H7.25O6)−, L-ascorbic acid (LAA) and 4,4′-bipyridine (BPy) co-crystallize in the chiral space group P21 with two molecules of LAA, and one molecule of bpy in the asymmetric unit. The structure was modeled in two parts due to possible proton transfer from LAA to the corresponding side of the bpy molecule having an occupancy of approximately 0.25 and part 2 with an occupancy of approximately 0.75. In this structure, LAA forms hydrogen bonds with neighboring LAA molecules, forming extended sheets of LAA molecules which are bridged by bpy molecules. A comparison to a related and previously published co-crystal of LAA and 3-bromo-4-pyridone is presented.
Keywords
crystal structure , co-crystal , 4,4′-bipyridine , L-ascorbic acid , charge transfer
Journal title
Acta Crystallographica Section E: Crystallographic Communications
Serial Year
2019
Record number
2628459
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