Crystallography Open Database





Information card for 7101670

7101669 << 7101670 >> 7101671

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Coordinates

7101670.cif

Structure parameters

Common name (1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione).(1,4- butanedicarboxylic acid)
Chemical name (1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione).(1,4-butanedicarboxylic acid)
Formula - C14 H20 N4 O6 -
Calculated formula - C14 H20 N4 O6 -
Title of publication A "hidden" co-crystal of caffeine and adipic acid.
Authors of publication Bucar, Dejan-Kresimir; Henry, Rodger F; Lou, Xiaochun; Borchardt, Thomas B; Zhang, Geoff G Z
Journal of publication Chemical communications (Cambridge, England)
Year of publication 2007
Journal issue 5
Pages of publication 525 - 527
a 9.548 ± 0.0016 Å
b 9.5862 ± 0.0016 Å
c 9.6682 ± 0.0016 Å
α 82.705 ± 0.003°
β 87.649 ± 0.003°
γ 67.236 ± 0.002°
Cell volume 809.4 ± 0.2 Å3
Cell temperature 193 ± 2 K
Ambient diffraction temperature 193 ± 2 K
Number of distinct elements 4
Hermann-Mauguin symmetry space group P -1
Hall symmetry space group -P 1
Residual factor for all reflections 0.0454
Residual factor for observed reflections 0.0418
Weighted residual factors for the observed reflections 0.1195
Weighted residual factors for all reflections included in the refinement 0.1223
Goodness-of-fit parameter for observed reflections 1.066
Diffraction radiation wavelength 0.71073 Å
Diffraction radiation type MoKα
Has coordinates Yes
Has disorder No
Has Fobs No

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