Different solvents yield alternative crystal forms through aromatic, halogen bonding and hydrogen bonding competition
Alshahateet, Solhe F.; Bhadbhade, Mohan M.; Bishop, Roger; Scudder, Marcia L.; CrystEngComm 17 (2015) 877–; doi:10.1039/C4CE02109F

data_7218914
_publ_section_title
;
 Different solvents yield alternative crystal forms through aromatic,
 halogen bonding and hydrogen bonding competition
;
_journal_issue                   4
_journal_name_full               CrystEngComm
_journal_page_first              877
_journal_paper_doi               10.1039/C4CE02109F
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C36 H28 Cl2 N2 O'
_chemical_formula_weight         575.50
_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
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-10-08 deposited with the CCDC.
2014-11-24 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 97.6860(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3943(5)
_cell_length_b                   17.4818(10)
_cell_length_c                   15.6814(8)
_cell_measurement_reflns_used    3715
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      26.35
_cell_measurement_theta_min      2.29
_cell_volume                     2823.9(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0332
_diffrn_reflns_av_sigmaI/netI    0.0396
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            19838
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.263
_exptl_absorpt_correction_T_max  0.9492
_exptl_absorpt_correction_T_min  0.9065
_exptl_absorpt_correction_type   'Sadabs, (Sheldrick 2001)'
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.315
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.092
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     375
_refine_ls_number_reflns         6500
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0756
_refine_ls_R_factor_gt           0.0597
_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^)+(0.0576P)^2^+1.2474P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1314
_refine_ls_wR_factor_ref         0.1390
_reflns_number_gt                5239
_reflns_number_total             6500
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce02109f2.cif
_cod_data_source_block           5032
_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/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 2935 2014-11-11 08:27:57Z andrius 

 Adding full bibliography for 7218913--7218916.cif.
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7218914