Origins of selectivity in a colorimetric charge-transfer sensor for diols.
Bispyridyl hydrogen bonding receptor 1 forms colored charge transfer (CT) complexes with complementary phenols and naphthols. Despite its low association constants of approximately 10(1) M(-1), receptor 1 was highly selective forming CT complexes of varying color and intensity with different diol guests. The selectivity of 1 was correlated with the ability of its CT band to simultaneously yield information about the association constant and the electronic structure of the phenols and naphthols.
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
Roger D
RD
Rasberry
Mark D
MD
Smith
Ken D
KD
Shimizu