Highly emissive organic solids with remarkably broad color tunability based on N,C-chelate, four-coordinate organoborons
Aslam C. Shaikh; Dnyanesh S. Ranade; Shridhar Thorat; Arunava Maity; Prasad P. Kulkarni; Rajesh G. Gonnade; Parthapratim Munshi; Nitin T. Patil; Chem.Commun. 51 (2015) 16115–; doi:10.1039/C5cc06351e

data_7118016
_publ_section_title
;
 Highly emissive organic solids with remarkably broad color tunability
 based on N,C-chelate, four-coordinate organoborons
;
_journal_name_full               Chem.Commun.
_journal_page_first              16115
_journal_paper_doi               10.1039/C5cc06351e
_journal_volume                  51
_journal_year                    2015
_chemical_formula_moiety         'C27 H20 B N'
_chemical_formula_sum            'C27 H20 B N'
_chemical_formula_weight         369.25
_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
;
2015-06-25 deposited with the CCDC.
2015-09-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 98.000(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8980(4)
_cell_length_b                   7.0675(3)
_cell_length_c                   30.3620(14)
_cell_measurement_reflns_used    3218
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.39
_cell_measurement_theta_min      2.51
_cell_volume                     1890.78(15)
_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      293(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  0.0472
_diffrn_reflns_av_sigmaI/netI    0.0448
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            13377
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.9847
_exptl_absorpt_correction_T_min  0.9612
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS,(BRUKER,2006)
_exptl_crystal_colour            YELLOW
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             776
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Pet Ether Dichloromethane MIxture'
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.187
_refine_diff_density_min         -0.198
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.0090(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         3338
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0804
_refine_ls_R_factor_gt           0.0576
_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^)+(0.0404P)^2^+0.8044P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1232
_refine_ls_wR_factor_ref         0.1344
_reflns_number_gt                2420
_reflns_number_total             3338
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc06351e2.cif
_cod_data_source_block           bn_301
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 4093 2015-10-18 17:28:56Z antanas 
;
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               7118016