Crystal structure and phototransistor behavior of N-substituted heptacence.
Wu, Yuechao; Yin, Zongyou; Xiao, Jinchong; Liu, Yi; Wei, Fengxia; Tan, Ke Jie; Kloc, Christian; Huang, Ling; Yan, Qingyu; Hu, Fangzhong; Zhang, Hua; Zhang, Qichun; ACS applied materials & interfaces 4 (2012) 1883–1886; doi:10.1021/am3003389

data_4505862
_publ_section_title
;
 Crystal structure and phototransistor behavior of N-substituted
 heptacence.
;
_journal_issue                   4
_journal_name_full               'ACS applied materials &amp; interfaces'
_journal_page_first              1883
_journal_page_last               1886
_journal_paper_doi               10.1021/am3003389
_journal_volume                  4
_journal_year                    2012
_chemical_formula_sum            'C38 H18 N4'
_chemical_formula_weight         530.56
_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_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.407(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.2945(12)
_cell_length_b                   3.8517(2)
_cell_length_c                   25.4884(15)
_cell_measurement_temperature    296(2)
_cell_volume                     2353.0(2)
_computing_cell_refinement       'Siemens SMART & SAINT'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens XPERP'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'APEX II CCD detector'
_diffrn_measurement_method       'phi and omega 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  0.0452
_diffrn_reflns_av_sigmaI/netI    0.0545
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            14986
_diffrn_reflns_theta_full        24.23
_diffrn_reflns_theta_max         24.23
_diffrn_reflns_theta_min         1.07
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.95
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1996)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.498
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.176
_refine_diff_density_min         -0.191
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         3800
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.993
_refine_ls_R_factor_all          0.1026
_refine_ls_R_factor_gt           0.0444
_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^)+(0.0536P)^2^+0.3730P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0941
_refine_ls_wR_factor_ref         0.1224
_reflns_number_gt                2125
_reflns_number_total             3800
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            am3003389_si_002.cif
_cod_data_source_block           a
_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:

'_refine_ls_hydrogen_treatment' value 'constra' was replaced with the
value 'constr' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4505862