TY - JOUR
T1 - Synthesis of novel chiral bis(ferrocenyl) ligands and their use as voltammetric metal cation sensors
AU - Sutcliffe, O.B.
AU - Bryce, M.R.
AU - Batsanov, A.S.
PY - 2002/8
Y1 - 2002/8
N2 - Bis(ferrocenyl) derivatives 3a, 3c and 3d containing secondary chelating substituents act as efficient voltammetric sensors of Mg2+ and Zn2+ ions in acetonitrile solution in concentrations as low as 10 mol%: a new redox peak appears in the cyclic voltammogram, positively shifted by 170-225 mV for 3a, 160-175 mV for 3c and 160-170 mV for 3d. Compounds 3b and 4 are selective for Zn2+ (215 mV shift) and Mg2+ (205 mV shift) ions, respectively, whilst 3d is also responsive to Ca2+ ions (165 mV shift) with no interference from a large excess of several other metal salts. The X-ray crystal structure of 3a is also reported.
AB - Bis(ferrocenyl) derivatives 3a, 3c and 3d containing secondary chelating substituents act as efficient voltammetric sensors of Mg2+ and Zn2+ ions in acetonitrile solution in concentrations as low as 10 mol%: a new redox peak appears in the cyclic voltammogram, positively shifted by 170-225 mV for 3a, 160-175 mV for 3c and 160-170 mV for 3d. Compounds 3b and 4 are selective for Zn2+ (215 mV shift) and Mg2+ (205 mV shift) ions, respectively, whilst 3d is also responsive to Ca2+ ions (165 mV shift) with no interference from a large excess of several other metal salts. The X-ray crystal structure of 3a is also reported.
KW - ferrocene
KW - imidazoline
KW - chiral ligands
UR - http://dx.doi.org/10.1016/S0022-328X(02)01593-0
U2 - 10.1016/S0022-328X(02)01593-0
DO - 10.1016/S0022-328X(02)01593-0
M3 - Article
SN - 0022-328X
VL - 656
SP - 211
EP - 216
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -