5OV2:
reference: Nonconventional C-H...F Hydrogen Bonds Support a Tetrad Flip in Modified G-Quadruplexes., Dickerhoff J, Weisz K, J Phys Chem Lett. 2017 Oct 6:5148-5152. doi: 10.1021/acs.jpclett.7b02428. PMID: 28976755

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