Crystal structure and Hirshfeld surface analysis of ethyl (4R,4aS)-2-methyl-5,8-dioxo-6-phenyl-4a,5,6,7,7a,8-hexahydro-4H-furo[2,3-f]isoindole-4-carboxylate
2021 ◽
Vol 77
(2)
◽
pp. 86-90
Keyword(s):
In the title compound, C20H19NO5, the central six-membered ring has a slightly distorted half-chair conformation, with puckering parameters of Q T = 0.3387 (11) Å, θ = 49.11 (19)° and φ = 167.3 (2)°. The conformation of the fused pyrrolidine ring is that of an envelope. Molecules are connected by intermolecular C—H...O hydrogen bonds, C—H...π interactions and π–π stacking interactions [centroid-to-centroid distance = 3.9536 (11) Å, with a slippage of 2.047 Å], forming a three-dimensional network. The most important contributions to the surface contacts are from H...H (46.3%), O...H/H...O (31.5%) and C...H/H...C (17.3%) interactions, as concluded from a Hirshfeld surface analysis.
2020 ◽
Vol 76
(8)
◽
pp. 1195-1200
2021 ◽
Vol 77
(2)
◽
pp. 195-199
2021 ◽
Vol 77
(3)
◽
pp. 260-265
2018 ◽
Vol 74
(7)
◽
pp. 1021-1025
2021 ◽
Vol 77
(8)
◽
pp. 829-833
2018 ◽
Vol 74
(11)
◽
pp. 1599-1604
◽
2018 ◽
Vol 74
(9)
◽
pp. 1290-1294
◽
2019 ◽
Vol 75
(6)
◽
pp. 717-720
2018 ◽
Vol 74
(10)
◽
pp. 1500-1503
◽
2017 ◽
Vol 73
(8)
◽
pp. 1197-1201