Imazamox: A Quest for Polymorphic Modifications of a Chiral and Racemic Herbicide
Braga, Dario; Chelazzi, Laura; Grepioni, Fabrizia; Nanna, Saverio; Rubini, Katia; Curzi, Marco; Giaffreda, Stefano; Saxell, Heidi E.; Bratz, Matthias; Chiodo, Tiziana; Crystal Growth & Design 14 (2014) 1430–; doi:10.1021/cg4019025

data_4510091
_publ_section_title
;
 Imazamox: A Quest for Polymorphic Modifications of a Chiral and Racemic
 Herbicide
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1430
_journal_paper_doi               10.1021/cg4019025
_journal_volume                  14
_journal_year                    2014
_chemical_formula_sum            'C15 H19 N3 O4'
_chemical_formula_weight         305.33
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.43(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.262(2)
_cell_length_b                   7.8370(10)
_cell_length_c                   27.115(2)
_cell_measurement_temperature    293(2)
_cell_volume                     1533.5(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0216
_diffrn_reflns_av_sigmaI/netI    0.0300
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8503
_diffrn_reflns_theta_full        22.21
_diffrn_reflns_theta_max         22.21
_diffrn_reflns_theta_min         1.51
_exptl_absorpt_coefficient_mu    0.097
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.9(16)
_refine_ls_extinction_coef       0.0069(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   1.034
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     414
_refine_ls_number_reflns         3784
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0539
_refine_ls_R_factor_gt           0.0472
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0369P)^2^+0.6920P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1054
_reflns_number_gt                3398
_reflns_number_total             3784
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            cg4019025_si_002.cif
_cod_data_source_block           fab
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P21
_cod_database_code               4510091