Table 2.
complex | gxx |
gyy |
gzz |
T(K) |
phase |
EPR type |
ref. |
---|---|---|---|---|---|---|---|
[Fe(Porph)(CN)2]− | |||||||
[K(18-C-6)][Fe(TMP)(CN)2] | 1.20 | 1.68 | 3.47 | 4.2 | microcrystalline | large gmax | tw |
[K(18-C-6)][Fe(TMP)(CN)2] | 2.54 | 2.54 | 4.2 | CH2Cl2 | axial | tw | |
[K((CH3)2CO)2][Fe(TPP)(CN)2] | 0.52 | 1.05 | 3.70 | 6.0 | single crystal | large gmax | 16 |
[K((CH3)2CO)2][Fe(TPP)(CN)2] | 3.67 | 4.2 | microcrystalline | large gmax | tw | ||
2.57 | 2.57 | 4.2 | microcrystalline | axial | tw | ||
[K((CH3)2CO)2][Fe(TPP)(CN)2] | 3.54 | 4.2 | CH2Cl2-CH3OH | large gmax | tw | ||
1.76 | 2.21 | 2.74 | 4.2 | CH2Cl2-CH3OH | rhombic | tw | |
[Fe(PPIX)(CN)2]− | 1.03 | 2.42 | 3.75 | – | – | large gmax | 36 |
[Fe(THP)(CN)2]− | 3.5 | 4.2 | CH2Cl2-CH3OH | large gmax | 20 | ||
[Fe(TPP)(CN)2]− | 3.56 | 4.2 | CH2Cl2-CH3OH | large gmax | 21 | ||
[Fe(OMTPP)(CN)2]− | 3.48 | 4.2 | CH2Cl2 | large gmax | 37 | ||
[Fe(OETPP)(CN)2]− | 3.31 | 4.2 | CH2Cl2 | large gmax | 37 | ||
[Fe(OETPP)(CN)2]− | 3.47 | – | – | large gmax | 38 | ||
[Fe(OEP)(CN)2]− | 3.73 | – | – | large gmax | 38 | ||
[Fe(TTP)(CN)2]−a | 3.6 | 4.2 | CH2Cl2 | large gmax | 24 | ||
[Fe(TTP)(CN)2]−a | 2.5 | 2.5 | 4.2 | CH3OH | axial | 24 | |
[Fe(TMP)(CN)2]− | 2.47 | 2.47 | 1.5 | 4.2 | CH2Cl2-CH3OH | axial | 21 |
[Fe(TEt3PP)(CN)2]−a,b | 2.45 | 2.45 | 1.6 | 4.2 | CD3OD | axial | 23 |
[Fe(TEt3PP)(CN)2]−a,b | 2.45 | 2.45 | 1.5 | 4.2 | CH2Cl2-CH3OH | axial | 21 |
[Fe(TiPr3PP)(CN)2]−a,b | 2.45 | 2.45 | 1.5 | 4.2 | CH2Cl2-CH3OH | axial | 21 |
[Fe(TMeP)(CN)2]− | 2.43 | 2.43 | 1.69 | 4.2 | CH2Cl2-CH3OH | axial | 20 |
[Fe(TEtP)(CN)2]− | 2.47 | 2.47 | 1.61 | 4.2 | CH2Cl2-CH3OH | axial | 20 |
[Fe(TiPrP)(CN)2]− | 2.35 | 2.35 | 1.82 | 4.2 | CH2Cl2-CH3OH | axial | 20 |
[Fe(TiPrP)(CN)2]− | 2.42 | 2.42 | 1.74 | 4.2 | CH2Cl2 | axial | 24 |
[Fe(TcPrP)(CN)2]− | 2.47 | 2.47 | 4.2 | CH2Cl2 | axial | 22 | |
[Fe(TnPrP)(CN)2]− | 2.49 | 2.49 | 4.2 | CH2Cl2 | axial | 22 | |
[Fe(TMP)(CN)2]− | 2.56 | 2.56 | 1.70 | – | – | axial | 38 |
[Fe(QTPP)(CN)2]− | 2.51 | 2.25 | 1.75 | 77 | CH3OH | axial | 39 |
[Fe(MQTPP)(CN)2]− | 2.53 | 2.26 | 1.77 | 77 | CH3OH | axial | 39 |
[Fe(PTPP)(CN)2]− |
2.46 |
2.29 |
1.7 |
77 |
CH3OH |
axial |
39 |
[Fe(Porph)(CN)(L)] | |||||||
[Fe(TPP)(CN)(Py)] | 0.34 | 1.76 | 3.31 | 6.0 | single crystal | large gmax | 16 |
[Fe(TPP)(CN)(Py)] | 3.6 | 4.2 | CH2Cl2 | large gmax | tw | ||
[Fe(TPP)(CN)(Py)] | 1.8 | 3.3 | 4.2 | microcrystalline | large gmax | tw | |
[Fe(TPP)(CN)(Py)]c | 1.81 | 3.17 | 4.2 | microcrystalline | large gmax | tw | |
[Fe(TPP)(CN)(1-MeIm)] | 2.04 | 3.36 | 4.2 | CH2Cl2 | large gmax | tw | |
[Fe(TPP)(CN)(1-MeIm)] | 1.92 | 3.51 | 4.2 | microcrystalline | large gmax | tw | |
[Fe(TMP)(CN)(1-MeIm)] | 2.04 | 3.28 | 4.2 | CH2Cl2 | large gmax | tw | |
[Fe(TMP)(CN)(1-MeIm)] | 1.91 | 3.37 | 4.2 | microcrystalline | large gmax | tw | |
[Fe(PPIX)(CN)(Im)]− | 1.4 | 2.2 | 3.1 | 77 | – | large gmax | 40 |
[Fe(THP)(CN)(2-MeHIm)] | 3.3 | 4.2 | CH2Cl2-CH3OH | large gmax | 41 | ||
[Fe(TMeP)(CN)(2-MeHIm)] | 2.5 | 2.5 | 1.6 | 4.2 | CH2Cl2-CH3OH | axial | 41 |
[Fe(TEtP)(CN)(2-MeHIm)] | 2.5 | 2.5 | 1.6 | 4.2 | CH2Cl2-CH3OH | axial | 41 |
[Fe(TiPrP)(CN)(2-MeHIm)] |
2.45 |
2.45 |
1.67 |
4.2 |
CH2Cl2-CH3OH |
axial |
41 |
Cyano Hemoproteins | |||||||
Mb, HIm, CN− | 0.93 | 1.89 | 3.45 | – | – | large gmax | 42 |
Cytochrome c, CN− | 0.73 | 1.85 | 3.47 | – | – | large gmax | 42 |
Sirohemin, 2CN− | 2.37 | 2.37 | 1.78 | 15-20 | – | axial | 43 |
Similar results were claimed for a number of meso-tetrakis(p-substituted-phenyl)porphyrin derivatives, p-X-TPP; X = OCH3, H, F, Cl, COOCH3, CF3 and CN, but no data shown.
the complex shows either an axial type signal or both axial and large gmax type signals in different solvents.[23]
Crystalline phase of Mössbauer sample.