期刊
CRYSTENGCOMM
卷 24, 期 18, 页码 3347-3354出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ce00161f
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资金
- MICIU/AEI of Spain [PID2020-115637GBI00]
This work presents a computational and experimental analysis of the crystal structure of cancer drug tipiracil hydrochloride. The crystal structure reveals a complex network of hydrogen bonds and investigates the assembly of hydrogen and halogen bonds.
This work reports a combined computational and experimental analysis of the crystal structure of the cancer drug tipiracil hydrochloride in the form of a methanol solvate-hydrate (4 : 1 : 3, molar ratio). The crystal structure shows a complex network of H-bonds with static discrete disorder in two out of the three symmetry-independent solvent molecules, which has been studied by means of DVS and TGA techniques. MEP surface calculations shows a region of positive potential (sigma-hole) along the C-Cl bond, which induces the formation of ClMIDLINE HORIZONTAL ELLIPSISO contacts that are relevant in the crystal packing. The hydrogen and halogen bonding assemblies were further analyzed using density functional theory (DFT), the quantum theory of atom-in-molecules (QTAIM) and the noncovalent interaction plot (NCIplot).
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