Open AccessSelf-assembling purine and pteridine quartets: how do π-conjugation patterns affect resonance-assisted hydrogen bonding?
Author(s) -
Hari Ram Paudel,
Ramkrishna Das,
ChiaHua Wu,
Judy I. Wu
Publication year - 2020
Publication title -
organic and biomolecular chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 146
eISSN - 1477-0539
pISSN - 1477-0520
DOI - 10.1039/c9ob02412c
Subject(s) - pteridine , monomer , hydrogen bond , purine , chemistry , resonance (particle physics) , crystallography , halogen bond , stereochemistry , polymer , enzyme , biochemistry , molecule , organic chemistry , physics , particle physics
Computed association strengths for 43 purine and pteridine quartets (38 to 100 kcal mol -1 ) show excellent linear correlation with π-conjugation gain in the assembled monomers (r 2 = 0.965). Even quartets having the same secondary electrostatic interactions can display very different association strengths depending on the π-conjugation patterns of the monomeric units.