Polymorphism and mechanochromic luminescence of a highly solid-emissive quinoline-β-ketone boron difluoride dye
Tan, Ronghua; Lin, Qifei; Wen, Ying; Xiao, Shuzhang; Wang, Sa; Zhang, Ronghua; Yi, Tao; CrystEngComm 17 (2015) 6674–; doi:10.1039/C5CE01138H

data_7221673
_publ_section_title
;
 Polymorphism and mechanochromic luminescence of a highly solid-emissive
 quinoline-\b-ketone boron difluoride dye
;
_journal_issue                   35
_journal_name_full               CrystEngComm
_journal_page_first              6674
_journal_paper_doi               10.1039/C5CE01138H
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C29 H21 B F2 N2 O'
_chemical_formula_weight         462.29
_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
;
2015-01-21 deposited with the CCDC.
2015-07-28 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 117.686(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.097(15)
_cell_length_b                   8.764(7)
_cell_length_c                   17.682(16)
_cell_measurement_temperature    293(2)
_cell_volume                     2346(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.1079
_diffrn_reflns_av_sigmaI/netI    0.0910
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            24315
_diffrn_reflns_theta_full        27.56
_diffrn_reflns_theta_max         27.56
_diffrn_reflns_theta_min         2.60
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9822
_exptl_absorpt_correction_T_min  0.9822
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.309
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.168
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         5395
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.1630
_refine_ls_R_factor_gt           0.0848
_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^)+(0.0627P)^2^+0.4536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1616
_refine_ls_wR_factor_ref         0.1950
_reflns_number_gt                2818
_reflns_number_total             5395
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ce01138h2.cif
_cod_data_source_block           sad
_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 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7221672--7221674.cif.
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7221673