Table 3.
The τ index for the five-coordinate rhenium complexes of this study, as a measure of geometric distortion from idealized geometries
| Compound | αa | βb | τc |
|---|---|---|---|
| [ReO{SN(R1)S}(η1-C6H4Br-4-S)] (1) | 121.23(7) | 157.91(15) | 0.61 |
| [ReO{SN(R2)S}(η1-C6H4Br-4-S)] (2) | 119.05(8) | 163.35(17) | 0.74 |
| [ReO{SN(R2)S}(η1-C6H4Cl-4-S)] (3) | 118.94(4) | 163.43(9) | 0.74 |
| [ReO{SN(R2)S}(η1-C6H4F-4-S)] (4) | 118.74(5) | 164.00(12) | 0.75 |
| [ReO{SN(R2)S}(η1-C6H4OCH3-4-S)] (5) | 119.60(4) | 161.85(10) | 0.70 |
| [ReO{SN(R2)S}(η1-C6H4OCH3-4-CH2S)] (6) | 122.21(5) | 159.56(12) | 0.62 |
| [ReO{SN(R3)S}(η1-C6H4Br-4-S)] (7) | 123.26(4) | 159.42(10) | 0.60 |
| [ReO{SN(R3)S}(η1-C6H4OCH3-4-S)] (9) | 124.27(3) | 157.78(7) | 0.56 |
| [ReO{SN(R3)S}(η1-C6H4Cl-4-CH2S)] (10) | 124.84(6) | 156.50(14) | 0.53 |
a
α ≡ the second largest basal angle.
b
β ≡ the largest basal angle.
c
τ ≡ (β−α)/60. SN(R)S=η3-{(SCH2CH2)2N(R)} (R1 = CH2C6H5; R2 = CH2C5H4N; R3 = (CH2)2C5H4N).