C6H9N3O3
Coles, Simon J.; Hursthouse, Michael B.; Maurya, M. R.; Azam, A.; Crystal Structure Report Archive  (2008) 606–; doi:

data_1519917
_publ_section_title
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 C6H9N3O3
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              606
_journal_year                    2008
_chemical_formula_sum            'C6 H9 N3 O3'
_chemical_formula_weight         171.16
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 94.41(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9056(14)
_cell_length_b                   8.6519(17)
_cell_length_c                   12.818(3)
_cell_measurement_reflns_used    3185
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     763.6(3)
_computing_cell_refinement       'DENZO, COLLECT'
_computing_data_reduction        'DENZO, COLLECT'
_computing_molecular_graphics    'CAMERON (Watkin, Pearce 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Nonius KappaCCD Area Detector'
_diffrn_measurement_method       'Phi and Omega scans to fill Ewald Sphere'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_sigmaI/netI    0.0431
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6083
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    0.121
_exptl_absorpt_correction_T_max  0.9904
_exptl_absorpt_correction_T_min  0.9532
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.489
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.202
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.042(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         1725
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0547
_refine_ls_R_factor_gt           0.0397
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0614P)^2^+0.1173P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1010
_refine_ls_wR_factor_ref         0.1099
_reflns_number_gt                1368
_reflns_number_total             1725
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-606.cif
_cod_data_source_block           s92
_cod_depositor_comments
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Citation :
Coles, Simon J. and Hursthouse, Michael B. and Maurya, M. R. and 
Azam, A. (2008) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/606)

More at:
http://ecrystals.chem.soton.ac.uk/606/

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 3392 2015-05-12 13:50:21Z andrius 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1519917