A bis-bisurea receptor with the R,R-cyclohexane-1,2-diamino spacer for phosphate and sulfate ions.
A bis-bisurea receptor (L) based on the R,R-cyclohexane-1,2-diamino scaffold forms an uncommon 2 : 2 complex (1) with the monohydrogen phosphate ion (HPO(4)(2-)) and a 1 : 1 complex (2) with the sulfate ion (SO(4)(2-)). Solution binding properties of the two anions were studied by (1)H NMR, UV-vis, and circular dichroism (CD) methods.
State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, China.
Meiying
M
Wei
Biao
B
Wu
Lei
L
Zhao
Hui
H
Zhang
Shaoguang
S
Li
Yanxia
Y
Zhao
Xiao-Juan
XJ
Yang
D000838:Anions / Q000737:chemistry; D002942:Circular Dichroism; D018360:Crystallography, X-Ray; D003510:Cyclohexanes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010710:Phosphates / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry*; D014508:Urea / Q000031:analogs & derivatives*
D000838:Anions; D003510:Cyclohexanes; D010710:Phosphates; D013431:Sulfates; C506365:Cyclohexane; D014508:Urea