TY - JOUR
T1 - Saddle-shaped six-coordinate iron(III) porphyrin complexes showing a novel spin crossover between S = 1/2 and S = 3/2 spin states
AU - Ikeue, Takahisa
AU - Ohgo, Yoshiki
AU - Yamaguchi, Tatsuya
AU - Takahashi, Masashi
AU - Takeda, Masuo
AU - Nakamura, Mikio
PY - 2001/7/16
Y1 - 2001/7/16
N2 - The field strength of the axial ligands determines the spin state of saddled iron(III) porphyrin complexes (see picture). Strong axial ligands (L), such as imidazole and 4-dimethylaminopyridine, lead to the formation of complexes with a pure S = 1/2 state, while weak ligands, such as THF, give complexes with a pure S = 3/2 state. Intermediate strength ligands, such as pyridine and 4-cyanopyridine, give complexes that show a novel spin crossover between the S = 1/2 and S = 3/2 states.
AB - The field strength of the axial ligands determines the spin state of saddled iron(III) porphyrin complexes (see picture). Strong axial ligands (L), such as imidazole and 4-dimethylaminopyridine, lead to the formation of complexes with a pure S = 1/2 state, while weak ligands, such as THF, give complexes with a pure S = 3/2 state. Intermediate strength ligands, such as pyridine and 4-cyanopyridine, give complexes that show a novel spin crossover between the S = 1/2 and S = 3/2 states.
KW - Iron
KW - Magnetic properties
KW - Moessbauer spectroscopy
KW - Porphyrinoids
KW - Spin crossover
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U2 - 10.1002/1521-3773(20010716)40:14<2617::AID-ANIE2617>3.0.CO;2-B
DO - 10.1002/1521-3773(20010716)40:14<2617::AID-ANIE2617>3.0.CO;2-B
M3 - Article
AN - SCOPUS:0035898521
SN - 1433-7851
VL - 40
SP - 2617
EP - 2620
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 14
ER -