Crystallography Open Database

Information card for entry 7246392

Preview

Coordinates	7246392.cif
Original paper (by DOI)	HTML

Structure parameters

Formula	C20 H18 O5
Calculated formula	C20 H18 O5
Title of publication	Collective synthesis of aspulvinone and its analogues by vinylogous aldol condensation of substituted tetronic acids with aldehydes.
Authors of publication	Yu, Xiaotan; Gu, Xiaoxia; Zhao, Yunpeng; Wang, Fengqing; Sun, Weiguang; Qi, Changxing; Gu, Lianghu; Zhang, Yonghui
Journal of publication	RSC advances
Year of publication	2023
Journal volume	13
Journal issue	7
Pages of publication	4859 - 4864
a	11.9556 ± 0.0002 Å
b	7.174 ± 0.0002 Å
c	18.9601 ± 0.0004 Å
α	90°
β	94.087 ± 0.002°
γ	90°
Cell volume	1622.06 ± 0.06 Å³
Cell temperature	293 ± 2 K
Ambient diffraction temperature	293 ± 2 K
Number of distinct elements	3
Space group number	4
Hermann-Mauguin space group symbol	P 1 21 1
Hall space group symbol	P 2yb
Residual factor for all reflections	0.042
Residual factor for significantly intense reflections	0.0415
Weighted residual factors for significantly intense reflections	0.1172
Weighted residual factors for all reflections included in the refinement	0.1179
Goodness-of-fit parameter for all reflections included in the refinement	0.867
Diffraction radiation wavelength	1.54178 Å
Diffraction radiation type	CuKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

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