Photophysical and electrochemical properties and temperature dependent geometrical isomerism in alkyl quinacridonediimines
Javed, Iqbal; Khurshid, Ayub; Arshad, Muhammad Nadeem; Wang, Yue; New Journal of Chemistry 38 (2014) 752–; doi:10.1039/c3nj00477e

data_7053849
_publ_section_title
;
 Photophysical and electrochemical properties and temperature dependent
 geometrical isomerism in alkyl quinacridonediimines
;
_journal_issue                   2
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              752
_journal_paper_doi               10.1039/c3nj00477e
_journal_volume                  38
_journal_year                    2014
_chemical_formula_moiety         'C44 H44 F2 N4'
_chemical_formula_sum            'C44 H44 F2 N4'
_chemical_formula_weight         666.83
_chemical_name_common
;
<i>N</i>,<i>N</i>-Bis(3,5-dimethylphenyl)-<i>N</i>,<i>N</i>'-di(n-butyl)-2,9-
difluoroquinacridonediimine
;
_chemical_name_systematic
;
<i>N</i>,<i>N</i>-Bis(3,5-dimethylphenyl)-<i>N</i>,<i>N</i>'-di(n-butyl)-2,9-
difluoroquinacridonediimine
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 110.38(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.453(3)
_cell_length_b                   7.2220(14)
_cell_length_c                   31.554(10)
_cell_measurement_temperature    173(2)
_cell_volume                     3514.7(16)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009)'
_computing_publication_material
;
WinGX (Farrugia, 1999) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker P4 CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0843
_diffrn_reflns_av_sigmaI/netI    0.0652
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            13280
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.08
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.260
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1416
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.202
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         3092
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.1218
_refine_ls_R_factor_gt           0.0642
_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^)+(0.0792P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1385
_refine_ls_wR_factor_ref         0.1620
_reflns_number_gt                1789
_reflns_number_total             3092
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3nj00477e.txt
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        3514.7(15)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7053849