V-shaped oxydiphthalimides: side-chain engineering regulates crystallisation-induced emission enhancement
Gopan, Gopika; Salini, P. S.; Deb, Somadrita; Hariharan, Mahesh; CrystEngComm 19 (2017) 419–; doi:10.1039/C6CE01738J

data_7226884
_publ_section_title
;
 V-shaped oxydiphthalimides: side-chain engineering regulates
 crystallisation-induced emission enhancement
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              419
_journal_paper_doi               10.1039/C6CE01738J
_journal_volume                  19
_journal_year                    2017
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C24 H24 N2 O5'
_chemical_formula_sum            'C24 H24 N2 O5'
_chemical_formula_weight         420.45
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2016-07-05 deposited with the CCDC.
2016-10-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.793(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.4774(10)
_cell_length_b                   5.1561(4)
_cell_length_c                   24.8530(16)
_cell_measurement_reflns_used    3288
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.06
_cell_measurement_theta_min      3.04
_cell_volume                     2109.0(2)
_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-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0248
_diffrn_reflns_av_unetI/netI     0.0244
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            8056
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.368
_diffrn_reflns_theta_min         2.475
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.9894
_exptl_absorpt_correction_T_min  0.9738
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_density_meas      1.323
_exptl_crystal_density_method    NONE
_exptl_crystal_description       block
_exptl_crystal_F_000             888
_exptl_crystal_preparation       ', Luminescent'
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Chloroform, n-Hexane'
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.415
_refine_diff_density_min         -0.190
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         2160
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0782
_refine_ls_R_factor_gt           0.0612
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0913P)^2^+2.7809P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1761
_refine_ls_wR_factor_ref         0.1902
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1647
_reflns_number_total             2160
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ce01738j2.cif
_cod_data_source_block           ODPI-2
_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 7226883--7226887.cif.
;
_cod_database_code               7226884
_shelx_estimated_absorpt_t_min   0.977
_shelx_estimated_absorpt_t_max   0.991
_shelxl_version_number           2014-3
_shelx_res_checksum              19049