TABLE 2.
Bonding parameters of KDFTFSI and KTFSI salts.
| Compound | KDFTFSI | KTFSI a |
|---|---|---|
| N‒S (Å) | 1.573(5), 1.581(6) | 1.570(6), 1.571(6) |
| 1.580(5), 1.562(6) | 1.575(6), 1.581(6) | |
| S‒O (Å) | 1.433(5), 1.435(5) | 1.431(5), 1.440(5) |
| 1.439(5), 1.435(5) | 1.437(5), 1.438(5) | |
| 1.426(5), 1.436(5) | 1.439(5), 1.425(5) | |
| 1.436(5),1.429(5) | 1.438(5), 1.438(5) | |
| S‒C (Å) | 1.807(8), 1.719(7) | 1.839(9), 1.84(1) |
| 1.726(7), 1.826(7) | 1.84(1), 1.84(1) | |
| S‒N‒S (°) | 128.0(4), 125.7(3) | 128.2(4), 126.3(4) |
| N‒S‒O (°) | 116.5(3), 109.5(3) | 116.4(3), 109.8(4) |
| 106.4(3), 116.3(3) | 107.2(3), 116.1(3) | |
| 106.8(3), 115.5(3) | 108.1(4), 116.9(3) | |
| 117.0(3), 108.7(3) | 117.4(3), 105.8(4) | |
| N‒S‒C (°) | 104.4(3), 106.0(3) | 104.0(4), 105.1(4) |
| 105.9(3), 103.7(3) | 104.2(5), 105.9(4) | |
| O‒S‒O (°) | 116.1(3), 117.3(3) | 116.0(3), 116.7(4) |
| 117.2(3), 116.9(3) | 116.3(4), 117.0(4) | |
| O‒S‒C (°) | 105.0(3), 103.5(3) | 105.4(4), 103.5(4) |
| 104.8(4), 104.9(4) | 104.7(5), 105.8(5) | |
| 105.0(3), 105.4(3) | 104.6(5), 105.3(5) | |
| 105.4(3), 103.2(3) | 106.1(5), 103.2(5) | |
| M···O (Å) avg | 2.864(5) | 2.9(2) |
| M···O (Å) range | 2.687(5) −3.338(6) | 2.697(6) −3.343(6) |
| M···N (Å) | 3.295(6), 3.365(5) | 3.405, 3.413 |
| C‒S···S‒C (|°|) | 17.1, 20.0 | 13.2, 9.4 |
a
The data of KTFSI, is obtained from (Xue et al., 2002).