1,3,5-Trifluoro-2,4,6-triiodobenzene–piperazine (2/1)
Keyword(s):
The single-crystal structure of the title compound, C4H10N2·2C6F3I3, features a moderately strong halogen bond between one of the three crystallographically distinct iodine atoms and the nitrogen atom. The iodine–nitrogen distance is 2.820 (3) Å, corresponding to 80% of the sum of their van der Waals radii. The C—I...N halogen bond angle is 178.0 (1)°, consistent with the linear interaction of nitrogen via a σ-hole opposite the carbon–iodine covalent bond. The other two iodine atoms do not engage in halogen bonding. Some weak C—H...F and —H...I interactions are also observed. The complete piperazine molecule is generated by symmetry.
2015 ◽
Vol 71
(8)
◽
pp. o572-o573
Keyword(s):
2021 ◽
Vol 77
(9)
◽
Keyword(s):
2014 ◽
Vol 70
(9)
◽
pp. o905-o906
◽
Keyword(s):
2014 ◽
Vol 70
(11)
◽
pp. o1163-o1164
◽
Keyword(s):
2019 ◽
Vol 75
(11)
◽
pp. 1808-1811
2015 ◽
Vol 71
(5)
◽
pp. o354-o355
Keyword(s):
1994 ◽
Vol 49
(10)
◽
pp. 1444-1447
◽
Keyword(s):
2014 ◽
Vol 70
(10)
◽
pp. o1133-o1134
Keyword(s):
2012 ◽
Vol 68
(8)
◽
pp. o2538-o2538
Keyword(s):
2015 ◽
Vol 71
(6)
◽
pp. o425-o425
◽
Keyword(s):