AIE-active smart cyanostyrene luminogens: polymorphism-dependent multicolor mechanochromism
Yang, Wei; Liu, Chunlin; Lu, Shuang; Du, Jinya; Gao, Qingyun; Zhang, Ronghua; Liu, Yi; Yang, Changying; Journal of Materials Chemistry C 6 (2018) 290–; doi:10.1039/C7TC04773H

data_7236985
_publ_section_title
;
 AIE-active smart cyanostyrene luminogens: polymorphism-dependent
 multicolor mechanochromism
;
_journal_issue                   2
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              290
_journal_paper_doi               10.1039/C7TC04773H
_journal_volume                  6
_journal_year                    2018
_chemical_formula_sum            'C23 H24 N2 O7'
_chemical_formula_weight         440.44
_chemical_name_systematic        NA-15C5
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-10-13 deposited with the CCDC.
2017-12-04 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.2812(13)
_cell_length_b                   19.295(2)
_cell_length_c                   7.9526(11)
_cell_measurement_reflns_used    3080
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      67.1710
_cell_measurement_theta_min      3.8680
_cell_volume                     2191.4(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.939
_diffrn_measured_fraction_theta_max 0.939
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Pro: Kappa single'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0345
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            6328
_diffrn_reflns_theta_full        75.00
_diffrn_reflns_theta_max         75.00
_diffrn_reflns_theta_min         3.85
_exptl_absorpt_coefficient_mu    0.832
_exptl_absorpt_correction_T_max  0.8513
_exptl_absorpt_correction_T_min  0.8513
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.335
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.341
_refine_diff_density_min         -0.250
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.5(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         3446
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0590
_refine_ls_R_factor_gt           0.0499
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0915P)^2^+0.2857P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1488
_refine_ls_wR_factor_ref         0.1577
_reflns_number_gt                2886
_reflns_number_total             3446
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7tc04773h2.cif
_cod_data_source_block           sad
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        2191.4(5)
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               7236985