316
3.15 Complexes of group 14 (Ge, Sn, Pb)
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
[Ref. p. 329
Ref. /
add. Ref.
3.15 Complexes of group 14 (Ge, Sn, Pb)
[C9H13Cl4N2SSn] •
H3C
•
SC2H5
CH3
C H2C C SnCl4
CN
ESR / 378
H(β): 0.834
H(γ): 0.301
14
N(δ): 0.345
photochemical reaction
2.0051
benzene
H(A): 0.042
H(B): 0.527
chlorobenzene
CN
[C9H13O2Sn] •
•
O
85Tan
chemical reaction
O Sn(CH3)3
ESR / 283
[C9H16Cl4NSSn] •
pyrolysis of dimer
SCh2CH3
tBu CH2 C SnCl4
CN
•
chlorobenzene
ESR / 378
[C9H17Cl4O3Sn] •
OCH3
tBu CH2 C
COCH3
OSnCl4
2.0056
chlorobenzene
86Tan2
H(β): 0.880
H(γ): 0.281
14
N(δ): 0.390
chemical reaction
•
90Mar
86Tan1
117,119
Sn: 0.816
Cl: 0.025
37
Cl: 0.021
H(β): 0.746
H(β): 1.030
H(γ): 0.239
H(δ): 0.227
35
ESR / 296
temperature dependence, equilibrium data
[C13H25Cl4O3Sn] •
CH3
H3C
•
OCH3
C H2C C SnCl4
CH2
87Tan
pyrolysis of dimer
ESR / 297
H(β): 1.02
H(β): 0.794
H(γ): 0.245
H(δ): 0.212
photochemical reaction
2.0045
benzene
H(o): 0.112
H(m): 0.049
chlorobenzene
CO2CH3
tBu
[C17H17Cl2O2Sn] •
•
Cl
ESR / 283
O
90Mar
SnMe3
O
Cl
Landolt-Börnstein
New S eries II/ 26A2
Ref. p. 329]
3 Radicals in metal complexes
317
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
[C17H19O2Sn] •
photochemical reaction
2.0044
90Mar
benzene
117
•
ESR / 283
Sn: 0.807
Sn: 0.849
H(o,p): 0.111
H(m): 0.045
thermolysis
2.0033
toluene
73
119
O
SnMe3
O
[C17H20F9GeO2] •
•
tBu
ESR / 290
Ge: 0.091
F (9F): 0.032
H(4,5): 0.425
photochemical reaction
2.0041
benzene
ESR / 283
H(o): 0.130
H(m): 0.048
H(CH3): 0.113
thermolysis
2.0033
toluene
73
95Aba
19
O
Ge(CF3)3
O
tBu
[C19H23O2Sn] •
•
H3C
O
SnMe3
90Mar
O
H3C
[C19H24F9GeO4] •
•
tBu
ESR / 290
Ge: 0.090
F (9F): 0.035
H(Me, 6H): 0.017
chemical reaction
2.003
THF
D = 15.8 mT
19
O
H3CO
95Aba
Ge(CF3)3
O
H3CO
tBu
[C20H16N4OSi] 2•
2•
ESR / 77
N
N
Si
N
O
adamantane
2.002
ESR / 77
D = 17.6 mT
N
electronic and vibrational spectroscopy
Landolt-Börnstein
New S eries II/ 26A2
91Row
318
3.15 Complexes of group 14 (Ge, Sn, Pb)
[Ref. p. 329
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
[C21H22N2O4Pb] •+
chemical reduction
1.9976
92Boc1
dimethylformamide
207
•+
O
O
ESR / 295
O
N
H
Pb: 2.56
Pb
H
O
H
N
HMO calculations
[C22H24ClO2Sn] •
•
O
O Sn
Cl
photochemical reaction
species 1:
toluene
H(1): 0.015
H(4): 0.236
H(5): 0.440
H(6): 0.248
H(7): 0.072
ESR / 233
92Reb
species 2:
H(1): 0.015
H(4): 0.263
H(5): 0.411
H(6): 0.321
H(7): 0.072
[C22H26ClO2Sn] •
•
O
O SnPh2Cl
photochemical reaction
species 1:
toluene
H(1): 0.014
H(4): 0.244
H(5): 0.422
H(6): 0.264
H(7): 0.074
ESR / 233
92Reb
species 2:
H(1): 0.014
H(4): 0.278
H(5): 0.390
H(6): 0.309
H(7): 0.074
Landolt-Börnstein
New S eries II/ 26A2
Ref. p. 329]
3 Radicals in metal complexes
Substance
Generation / Matrix or
Solvent / Method / T [K]
[C26H28ClO2Sn] •
chemical reaction
•
tBu
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
88Ste1
117
Sn: 1.52
Sn: 1.58
H(4): 0.37
H(5): 0.37
119
Cl
O
toluene
319
ESR / 443
Sn
O
toluene
tBu
117
Sn: 1.59
Sn: 1.66
H(4): 0.49
H(5): 0.26
119
ESR / 295
[C26H30ClO2Sn] •
chemical reaction
•
tBu
toluene
O
ESR / 463
SnPh2Cl
O
toluene
tBu
88Ste1
117,119
Sn: 1.46
H(4): 0.378
H(5): 0.378
117
Sn: 1.603
Sn: 1.698
H(4): 0.476
H(5): 0.282
119
ESR / 295
[C26H37O2Sn] •
photochemical reaction
•
benzene
O
ESR / 283
90Mar
H(o,p): 0.110
H(m): 0.046
SnBu3
O
[C28H31O2Sn] •
photochemical reaction
•
O
O
toluene
SnPh3
[C28H40GeO4] 2•
2•
tBu
O
Ge
O
Landolt-Börnstein
New S eries II/ 26A2
tBu
2
92Reb
ESR / 233
H(1): 0.013
H(4): 0.275
H(5): 0.338
H(6): 0.327
H(7): 0.070
chemical reaction
2.008
powder
D / G: 155
ESR / 77
E / G: 7
UV-VIS spectroscopy, electrochemistry
01ElH
320
3.15 Complexes of group 14 (Ge, Sn, Pb)
Substance
Generation / Matrix or
Solvent / Method / T [K]
[C29H31O2Sn] •
photochemical reaction
CH3
•
toluene
ESR / 293
O
O Sn
[C32H35O2Sn] •
toluene
ESR / 295
O
SnPh3
n-pentane
O
Ref. /
add. Ref.
92Reb
H(1): 0.012
H(4): 0.276
H(5): 0.334
H(6): 0.321
H(7): 0.071
chemical reaction
•
tBu
g-Factor /
a-Value [mT]
[Ref. p. 329
88Ste1
117,119
Sn: 1.14
H(4): 0.365
H(5): 0.365
117
Sn: 1.17
Sn: 1.22
H(4): 0.52
H(5): 0.21
119
tBu
ESR / 295
[C33H35O2Sn] •
chemical reaction
•
CH3
n-pentane
Sn
O
117
Sn: 1.16
Sn: 1.22
H(4): 0.365
H(5): 0.365
119
ESR / 295
tBu
O
88Ste1
n-pentane
117
Sn: 1.26
Sn: 1.32
H(4): 0.365
H(5): 0.365
119
ESR / 223
tBu
n-pentane
117
Sn: 1.31
Sn: 1.37
H(4): 0.47
H(5): 0.26
119
ESR / 173
toluene
117
Sn: 1.16
Sn: 1.22
H(4): 0.365
H(5): 0.365
119
ESR / 295
toluene
117
Sn: 1.31
Sn: 1.37
H(4): 0.47
H(5): 0.265
119
ESR / 193
(continued)
Landolt-Börnstein
New S eries II/ 26A2
Ref. p. 329]
3 Radicals in metal complexes
321
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
[C33H35O2Sn] • (continued)
pyridine
117
Ref. /
add. Ref.
Sn: 1.155
Sn: 1.20
H(4): 0.365
H(5): 0.365
119
ESR / 295
pyridine
ESR / 223
[C40H26O4Sn]2 •
H(4): 0.47
H(5): 0.27
chemical reaction
2•
frozen dichloromethane
O
97Bat
D = 104 × 10–4 cm–1
ESR / not given
Ph2Sn
O
2
crystal structure
[C41H34ClO2Sn] •
chemical reaction
•
117
ESR / 434
Sn: 1.48
Sn: 1.54
H(4): 0.355
H(6): < 0.03
toluene
species 1:
ESR / 253
H(4): 0.27
H(6): 0.077
xylene
119
Cl
O
Ph3C
88Ste1
Sn
O
tBu
species 2:
H(4): 0.47
H(6): 0.043
[C42H60GeO6] 2•
2•
tBu
O
Ge
tBu
O
3
•
D: 17.5 mT
ESR / 77
E: 1.0 mT
PbPh3
N
O
tBu
01ElH
toluene
89Kar
207
Pb: 0.66
N: 0.79
H(3): 0.34
H(7): 0.41
H(9): 0.24
14
O
Landolt-Börnstein
New S eries II/ 26A2
powder
chemical reaction
tBu
tBu
2.007
UV-VIS spectroscopy, electrochemistry
[C46H54NO2Pb] •
tBu
chemical reaction
ESR / 298
322
3.15 Complexes of group 14 (Ge, Sn, Pb)
Substance
Generation / Matrix or
Solvent / Method / T [K]
[C46H54NO2Sn] •
chemical reaction
•
tBu
toluene
Ref. /
add. Ref.
89Kar
117
Sn: 0.165
N: 0.79
H(3): 0.35
H(7): 0.41
H(9): 0.24
14
O
ESR / 298
SnPh3
tBu
g-Factor /
a-Value [mT]
[Ref. p. 329
N
O
tBu
tBu
[C47H41O2Sn]
•
chemical reaction
•
O
Ph3C
toluene
88Ste1
117
Sn: 0.97
Sn: 1.015
H(4): 0.283
H(6): 0.043
119
SnPh3
ESR / 295
O
tBu
toluene
117
Sn: 0.956
Sn: 0.998
H(4): 0.282
H(6): 0.48
119
ESR / 243
[C48H36Br2N4Sn] •−
•−
CH3
Br
electrochemically
generated
2.003
89Kad3
THF
ESR / 115
H3C
N
N
Sn
N
N
H3C
CH3
Br
electrochemistry, UV-VIS spectroscopy
[C48H36Br2N4Sn] •−
Br
•−
CH3
electrochemically
generated
2.003
89Kad3
THF
H3C
ESR / 115
N
N
Sn
N
N
CH3
H3C
Br
electrochemistry, UV-VIS spectroscopy
Landolt-Börnstein
New S eries II/ 26A2
Ref. p. 329]
3 Radicals in metal complexes
323
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
[C48H36Cl2N4Sn] •−
electrochemically
generated
2.004
89Kad3
•−
CH3
Cl
THF
ESR / 115
H3C
N
N
Sn
N
N
H3C
CH3
Cl
electrochemistry, UV-VIS spectroscopy
[C48H36Cl2N4O8Sn] •−
•−
ClO4 CH3
electrochemically
generated
THF
g⊥ = 2.002
89Kad3
g|| = 1.987
ESR / 115
H3C
N
Sn N
N
N
H3C
CH3
ClO4
electrochemistry, UV-VIS spectroscopy
[C48H36Cl2N4O8Sn] •−
•−
ClO4
electrochemically
generated
2.003
THF
CH3
H3C
ESR / 115
N
N
Sn
N
N
CH3
H3C
ClO4
electrochemistry, UV-VIS spectroscopy
Landolt-Börnstein
New S eries II/ 26A2
89Kad3
324
3.15 Complexes of group 14 (Ge, Sn, Pb)
[Ref. p. 329
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
[C48H36F2N4Sn] •−
electrochemically
generated
g⊥ = 2.004
89Kad3
•−
CH3
F
THF
g|| = 1.988
ESR / 115
H3C
N
N
Sn
N
N
CH3
F
H3C
electrochemistry, UV-VIS spectroscopy
[C48H36F2N4Sn] •−
•−
F
electrochemically
generated
THF
CH3
H3C
g⊥ = 2.002
89Kad3
g|| = 1.989
ESR / 115
N
N
Sn
N
N
CH3
H3C
F
electrochemistry, UV-VIS spectroscopy
[C48H41O2Sn] •
chemical reaction
•
CH3
toluene
ESR / 403
toluene
Ph3C
88Ste1
H(4): 0.300
H(6): 0.02
117
ESR / 295
Sn: 1.120
Sn: 1.170
H(4): 0.315
H(6): 0.025
toluene
species 1:
ESR / 213
H(4): 0.23
H(6): 0.070
O
119
Sn
O
tBu
species 2:
H(4): 0.44
H(6): 0.046
Landolt-Börnstein
New S eries II/ 26A2
Ref. p. 329]
3 Radicals in metal complexes
Substance
Generation / Matrix or
Solvent / Method / T [K]
[C56H78N2O4Pb] 2•
chemical reduction
tBu
2•
tBu
toluene
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
89Kar
207
Pb: 6.40
N: 0.77
H(3): 0.33
H(7): 0.42
H(9): 0.21
14
ESR / 298
O
N
325
tBu
Pb
O
2
tBu
[C56H78N2O4Sn] 2•
tBu
chemical reduction
2•
tBu
ESR / 77
O
N
tBu
Sn
89Kar
N: 0.80
H(3): 0.30
H(7): 0.38
H(9): 0.19
D = 8.5 mT
O
2
D = 19.0 mT
tBu
[C56H80GeN2O4] 2•
tBu
tBu
O
Ge
chemical reaction
2
dichloromethane / toluene
1:1
D = 0.014 cm–1
94Bru
E≅0
ESR / 4
N
O
tBu
•
2
tBu
magnetic data, electrochemistry, UV-VIS and IR spectroscopy
[C56H80GeO8] 2•
2•
tBu
tBu
O
tBu
Ge
O
tBu
O
O
O
O
chemical reaction
2.007
toluene
D: 26 mT
ESR / 77
E: 2.2 mT
tBu
O
O
tBu
tBu
tBu
UV-VIS spectroscopy, electrochemistry
Landolt-Börnstein
New S eries II/ 26A2
01ElH
326
3.15 Complexes of group 14 (Ge, Sn, Pb)
[Ref. p. 329
Substance
Generation / Matrix or
Solvent / Method / T [K]
g-Factor /
a-Value [mT]
Ref. /
add. Ref.
[C56H80N2O4Sn] 2•
synthesis from catechol and
metal salt
2
94Bru
dichloromethane / toluene 1:1
E≅0
tBu
tBu
O
Sn
ESR / 4
N
O
•
tBu
D = 0.0635 cm–1
tBu
2
magnetic data, electrochemistry, UV-VIS and IR spectroscopy
crystal structure
98Ben
Landolt-Börnstein
New S eries II/ 26A2