title: Synergistic effect between metal coordination and hydrogen bonding in phosphate and halide recognition.
abstract: The equilibrium constant for binding of dimethyl phosphate to a Co(III) complex in water increases from 6.2 to 210 M-1 upon addition of a single hydrogen bond between the bound phosphate and the metal complex. Crystal structure reveals that the hydrogen bond distance is 1.96 A. The synergistic effect between metal coordination and hydrogen bonding can also be observed for fluoride binding but not for bromide binding.
authors.affiliation: Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, Canada M5S 3H6. jchin@chem.utoronto.ca
authors.forename: Jik
authors.initials: J
authors.lastname: Chin
authors.forename: Suhman
authors.initials: S
authors.lastname: Chung
authors.forename: Dong H
authors.initials: DH
authors.lastname: Kim
mesh_terms: D002712:Chlorides / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry; D010755:Organophosphates / Q000737:chemistry*; D011199:Potentiometry
chemical_list: D002712:Chlorides; D009942:Organometallic Compounds; D010755:Organophosphates; D003035:Cobalt