Supramolecular structures and assembly and luminescent properties of quinacridone derivatives.
Ye, Kaiqi; Wang, Jia; Sun, Hui; Liu, Yu; Mu, Zhongcheng; Li, Fei; Jiang, Shimei; Zhang, Jingying; Zhang, Hongxing; Wang, Yue; Che, Chi-Ming; The journal of physical chemistry. B 109 (2005) 8008–8016; doi:10.1021/jp0444767

data_1506361
_publ_section_title
;
 Supramolecular structures and assembly and luminescent properties of
 quinacridone derivatives.
;
_journal_issue                   16
_journal_name_full               'The journal of physical chemistry. B'
_journal_page_first              8008
_journal_page_last               8016
_journal_paper_doi               10.1021/jp0444767
_journal_volume                  109
_journal_year                    2005
_chemical_formula_sum            'C28 H28 N2 O2'
_chemical_formula_weight         424.52
_chemical_name_common            5,12-Dibutyl-quinacridone
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.091(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4962(2)
_cell_length_b                   14.7065(4)
_cell_length_c                   19.2131(4)
_cell_measurement_reflns_used    10617
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      1.74
_cell_volume                     2115.03(9)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        PROCESS-AUTO
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean none
_diffrn_measured_fraction_theta_full 0.915
_diffrn_measured_fraction_theta_max 0.915
_diffrn_measurement_device_type  'Omega scan'
_diffrn_measurement_method       10.0
_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  0.0235
_diffrn_reflns_av_sigmaI/netI    0.0430
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            7978
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.74
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9856
_exptl_absorpt_correction_T_min  0.9611
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Higash,T(1995) Progrom for Absorption Correcttion'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.449
_refine_diff_density_rms         0.122
_refine_ls_extinction_coef       0
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.947
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4430
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.947
_refine_ls_R_factor_all          0.0763
_refine_ls_R_factor_gt           0.0491
_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^)+(0.0834P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1283
_refine_ls_wR_factor_ref         0.1361
_reflns_number_gt                2808
_reflns_number_total             4430
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp0444767si20041205_074044.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1506361