SEARCH Articles Figures Tables A-Donor Act structure As a 71 Donor Bonded Derivatives Derivative Structure Donor bonds Donor phosphate Donor-bound Donors structures Ester bond Ester derivation Ester derivatives Ester structure Esters effects H structural H-donors H-structure Intramolecular H-bond Intramolecular H-bonding Intramolecular bonding Intramolecular bonds M-OH2 bonds Phosphate derivatives Phosphate effect Phosphate ester bond Phosphates structure Structural derivation Structure M