Table 12.
Structural features of the less common X–E–Y linear chalcogendihalides characterized by X-ray diffraction analysis.
| Compound reference code | X | E | Y | d(X−E) (Å) | d(E−Y) (Å) | ∠ X–E–Y(°)(a) | References |
|---|---|---|---|---|---|---|---|
| CFMBXT | Cl | S | Cl | 2.126 | 2.552 | 167.6 | [730] |
| CLPHSC10 | Cl | S | Cl | 2.256 | 2.322 | 174.9 | [731] |
| TOSXII | Cl | S | Cl | 2.341 | 2.384 | 166.3 | [732] |
| TOSXOO | Cl | S | Cl | 2.295 | 2.365 | 175.9 | [732] |
| BIMMAL | Br | S | Br | 2.437 | 2.495 | 171.6 | [47] |
| MIMZDB | Br | S | Br | 2.451 | 2.538 | 176.9 | [800] |
| OBUQEH | Br | S | Br | 2.493 | 2.493 | 179.4 | [788] |
| SUSMIC | Cl | Se | Br | 2.802(b) | 2.412(b) | 173.3(b) | [723] |
| SUSNAV | Cl | Se | Br | 2.466 | 2.571 | 176.2 | [793] |
| IDAZUI(c) | Br | Se | I | 2.831(b) | 2.618(b) | 174.6(b) | [802] |
| GEPPUM | I | Se | I | 2.756 | 2.850 | 176.3 | [486] |
| HELDUX | I | Se | I | 2.768 | 2.854 | 175.4 | [830] |
| ZOBDID | I | Se | I | 2.738 | 2.886 | 178.6 | [498] |
| ZOBDUP | I | Se | I | 2.743 | 2.900 | 177.5 | [498] |
| XAGVIK | Cl | Te | Br | 2.659 | 2.577 | 169.9 | [733] |
| CEFREX | Br | Te | I | 2.868 | 2.903 | 177.9 | [580] |
(a)The angle values are rounded off to the first decimal. (b)Mean values. (c)This compound is the unique example of Se-hypervalent compound with IBr. Note that the mean value of the Se–I bond length is shorter than the Se–Br one.