Table 5.
Occurrence of linear E−E′−X and E−E′ ⋯ X fragments crystallographically characterized from a search of the Cambridge Structural Database (number of crystal structures in parentheses).(a)
| E–E′ = | |||||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| Te–Te | Se–Te | S–Te | Se–Se | S–Se | S–S | ||
| Cl | 6 (3)(b) | 5 (5)(c) | 53 (39)(d) | 11 (8)(e) | 7 (6)(f) | 49 (21)(g) | |
| X = | Br | — | 17 (11)(h) | 35 (26)(i) | 23 (11)(j) | 4 (2)(k) | 47 (17)(l) |
| I | 19 (7)(m) | 4 (4)(n) | 20 (19)(o) | 5 (3)(p) | 3 (1)(q) | 32 (19)(r) | |
(a) Most of the structures have been found by imposing the presence of at least a contact between the E–E′ and X fragments (E–E′ ⋯ X) shorter than (ΣrVdW – 0.6). (b)References [360–362]. (c)References [317, 318, 363–365].
(d)References [173, 174, 188–190, 194, 200, 204, 205, 212, 213, 235, 244, 317, 363, 366–381]. (e)References [38, 360, 382–385].
(f)References [260, 386–389]. (g)References [390–410]. (h)References [317, 363, 364, 370, 411, 412].
(i)References [182, 196, 207, 212, 213, 232, 235, 317, 363, 365, 367, 372, 373, 377, 379, 413–418]. (j)References [38, 398, 419–425].
(k)Reference [386]. (l)References [398, 405, 426–433]. (m)References [434–438]. (n)References [214, 364, 439, 440].
(o)References [200, 213, 214, 235, 317, 372, 373, 378, 440–443]. (p)References [38, 444]. (q)Reference [383]. (r)References [399, 445–458].