Crystallography Open Database

Information card for entry 2012432

2012431 << 2012432 >> 2012433

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Structure parameters

Chemical name	tricalcium dimanganese heptaoxide
Formula	Ca3 Mn2 O7
Calculated formula	Ca3 Mn2 O7
Title of publication	Ca~3~Mn~2~O~7~
Authors of publication	Guiblin, Nicolas; Grebille, Dominique; Leligny, Henri; Martin, Christine
Journal of publication	Acta Crystallographica, Section C: Crystal Structure Communications
Year of publication	2002
Journal volume	58
Journal issue	1
Pages of publication	i3 - i5
a	5.2347 ± 0.0006 Å
b	5.2421 ± 0.0002 Å
c	19.4177 ± 0.0019 Å
α	90°
β	90°
γ	90°
Cell volume	532.84 ± 0.08 Å³
Cell temperature	298 K
Number of distinct elements	3
Space group number	36
Hermann-Mauguin space group symbol	A 21 a m
Hall space group symbol	A -2 2a
Residual factor for all reflections	0.092
Residual factor for significantly intense reflections	0.023
Weighted residual factors for significantly intense reflections	0.014
Weighted residual factors for all reflections included in the refinement	0.015
Goodness-of-fit parameter for significantly intense reflections	1.98
Goodness-of-fit parameter for all reflections included in the refinement	1.45
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	Yes

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