Compilation of enthalpies of phase transitions available for tris(β-diketonato)iron(iii) complexes at 298.15 K and calculations of the dispersion interactions D (in kJ mol−1)a.
| Complex |
b
|
c
|
b
,
d
|
e
|
D f |
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 |
| Fe(acac)3 | 131.3 ± 1.5 | 20.5 ± 3.3 | 110.8 ± 3.6d | 105.8 | 5.0 ± 3.6 |
| 110.8 ± 8.9b | |||||
| Fe(Meacac)3 | 164.5 ± 10 | 19.7 ± 4.7 | 145 ± 11d | 131.8 | 13 ± 11 |
| Fe(tfac)3 | 131.5 ± 5.1 | 31.2 ± 5.4 | 100.3 ± 1.9b | 100.3 | 0.0 ± 1.9 |
| Fe(ba)3 | 200.0 ± 10 | 17.4 ± 5.9 | 183 ± 12d | 183.7 | −1 ± 12 |
| Fe(hfac)3 | 106.1 ± 3.0 | 28.5 ± 3.5 | 77.6 ± 1.8b | 94.7 | −17.1 ± 1.8 |
| Fe(thd)3 | 136.4 ± 1.5 | 14.6 ± 3.4 | 121.8 ± 3.1b | 153.5 | −31.7 ± 3.1 |
| Fe(dbm)3 | 164.7 ± 8.0 | 12.2 ± 8.1 | 153 ± 11d | 261.5 | −109 ± 11 |
a
Uncertainties in this table are expressed as expanded uncertainties at a level of confidence of 0.95 (k = 2).
b
From Table 1, column 5, in bold.
c
From Table 3, column 4.
d
Difference between column 2 and 3 in this table.
e
Calculated by using the group-additivity procedure (see text).
f
Difference between column 4 and 5 in this table.