The impact of modular substitution on crystal packing: the tale of two ureas
Koshti, Vijay S.; Thorat, Shridhar H.; Gote, Ravindra P.; Chikkali, Samir H.; Gonnade, Rajesh G.; CrystEngComm 18 (2016) 7078–; doi:10.1039/C6CE01324D

data_7226123
_publ_section_title
;
 The impact of modular substitution on crystal packing: the tale of two
 ureas
;
_journal_issue                   37
_journal_name_full               CrystEngComm
_journal_page_first              7078
_journal_paper_doi               10.1039/C6CE01324D
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C7 H7 I N2 O'
_chemical_formula_sum            'C7 H7 I N2 O'
_chemical_formula_weight         262.05
_space_group_crystal_system      orthorhombic
_space_group_IT_number           56
_space_group_name_Hall           '-P 2ab 2ac'
_space_group_name_H-M_alt        'P c c n'
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2016-07-21 deposited with the CCDC.
2016-08-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.4515(4)
_cell_length_b                   8.44460(10)
_cell_length_c                   8.99770(10)
_cell_measurement_reflns_used    9864
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.81
_cell_measurement_theta_min      3.44
_cell_volume                     1629.93(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXL-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.914
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_unetI/netI     0.0268
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.914
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            57286
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.914
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         43.946
_diffrn_reflns_theta_min         3.442
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    3.871
_exptl_absorpt_correction_T_max  0.390
_exptl_absorpt_correction_T_min  0.275
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS,(BRUKER,2006)
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    2.136
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.450
_exptl_crystal_size_mid          0.350
_exptl_crystal_size_min          0.300
_refine_diff_density_max         1.579
_refine_diff_density_min         -2.587
_refine_diff_density_rms         0.236
_refine_ls_extinction_coef       0.0017(4)
_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   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     101
_refine_ls_number_reflns         5815
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0710
_refine_ls_R_factor_gt           0.0465
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0820P)^2^+3.6784P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1360
_refine_ls_wR_factor_ref         0.1520
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4231
_reflns_number_total             5815
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ce01324d2.cif
_cod_data_source_block           ABC
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 7226122--7226134.cif.
;
_cod_database_code               7226123
_shelx_estimated_absorpt_t_min   0.275
_shelx_estimated_absorpt_t_max   0.390
_shelxl_version_number           2013-3
_shelx_res_checksum              66973