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_7226883
_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         'C22 H20 N2 O7'
_chemical_formula_sum            'C22 H20 N2 O7'
_chemical_formula_weight         424.40
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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
;
2016-07-05 deposited with the CCDC.
2016-10-24 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 96.020(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.6850(5)
_cell_length_b                   5.0270(2)
_cell_length_c                   22.8630(7)
_cell_measurement_reflns_used    3092
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.68
_cell_measurement_theta_min      2.88
_cell_volume                     1907.07(11)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_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_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0168
_diffrn_reflns_av_sigmaI/netI    0.0137
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            7046
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.88
_exptl_absorpt_coefficient_mu    0.112
_exptl_absorpt_correction_T_max  0.9889
_exptl_absorpt_correction_T_min  0.9726
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.478
_exptl_crystal_density_meas      1.479
_exptl_crystal_density_method    'not measured'
_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          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.148
_refine_diff_density_min         -0.180
_refine_diff_density_rms         0.031
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     142
_refine_ls_number_reflns         1666
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0379P)^2^+1.6053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0843
_refine_ls_wR_factor_ref         0.0910
_reflns_number_gt                1401
_reflns_number_total             1666
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c6ce01738j2.cif
_cod_data_source_block           ODPI-1
_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.

'_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_original_sg_symbol_Hall     '-C 2yc '
_cod_original_sg_symbol_H-M      'C2/c  '
_cod_database_code               7226883