#------------------------------------------------------------------------------
#$Date: 2025-08-19 20:55:00 +0200 (Tue 19 de Aug de 2025) $
#$Revision: 301808 $
#$URL: svn://www.crystallography.net/cod/cif/2/30/05/2300561.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2300561
loop_
_publ_author_name
'Krause, Lennard'
'Herbst-Irmer, Regine'
'Stalke, Dietmar'
_publ_section_title
;
 An empirical correction for the influence of low-energy contamination
;
_journal_coeditor_code           KS5494
_journal_issue                   6
_journal_name_full               'Journal of Applied Crystallography'
_journal_page_first              1907
_journal_page_last               1913
_journal_paper_doi               10.1107/S1600576715020440
_journal_volume                  48
_journal_year                    2015
_chemical_formula_moiety         'C28 H18 N2'
_chemical_formula_sum            'C28 H18 N2'
_chemical_formula_weight         382.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 118.8339(17)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.5559(13)
_cell_length_b                   12.2134(12)
_cell_length_c                   12.6643(12)
_cell_measurement_reflns_used    7097
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.495
_cell_measurement_theta_min      2.392
_cell_volume                     1836.8(3)
_computing_cell_refinement       'SAINT V8.30C'
_computing_data_collection       'APEX2 v2012.2'
_computing_data_reduction        'SAINT V8.30C'
_computing_molecular_graphics    'Mercury CSD 3.3 (Build RC5)'
_computing_publication_material  'Mercury CSD 3.3 (Build RC5)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution
'SHELXT (G.M.Sheldrick,Acta Cryst.(2015)A71,3-8)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Smart APEX II Quazar'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0254
_diffrn_reflns_av_unetI/netI     0.0113
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            14302
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.500
_diffrn_reflns_theta_min         2.392
_diffrn_source                   'INCOATEC Microsource'
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.7094
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2015/1
_exptl_crystal_density_diffrn    1.383
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.199
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.115
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         1697
_refine_ls_number_restraints     123
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0463
_refine_ls_R_factor_gt           0.0429
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[σ²(Fo²)+(0.0538P)²+2.3981P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1265
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1547
_reflns_number_total             1697
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            ks5494sup1.cif
_cod_data_source_block           1_uncorr
_cod_database_code               2300561
_cod_database_fobs_code          2300561
_shelx_shelxl_version_number     2014/7
_shelx_space_group_comment
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;
_shelx_estimated_absorpt_t_min   0.975
_shelx_estimated_absorpt_t_max   0.992
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
N1 N 0.89762(11) 0.62827(11) 0.48822(12) 0.0234(3) Uani 1 1 d . U
C1 C 0.83927(13) 0.55158(13) 0.51147(13) 0.0223(4) Uani 1 1 d . U
C2 C 0.90123(14) 0.46544(14) 0.59281(14) 0.0266(4) Uani 1 1 d . U
H2 H 0.9811 0.4654 0.6305 0.032 Uiso 1 1 calc R U
C4 C 0.72735(15) 0.38273(14) 0.56217(15) 0.0294(4) Uani 1 1 d . U
H4 H 0.6905 0.3255 0.5803 0.035 Uiso 1 1 calc R U
C3 C 0.84713(15) 0.38358(14) 0.61687(15) 0.0298(4) Uani 1 1 d . U
H3 H 0.8895 0.3264 0.6706 0.036 Uiso 1 1 calc R U
C5 C 0.66569(14) 0.46312(14) 0.48435(14) 0.0258(4) Uani 1 1 d . U
H5 H 0.5859 0.4614 0.4485 0.031 Uiso 1 1 calc R U
C6 C 0.71866(13) 0.55038(13) 0.45544(13) 0.0219(4) Uani 1 1 d . U
C7 C 0.65794(13) 0.63308(13) 0.37064(13) 0.0214(4) Uani 1 1 d . U
C8 C 0.71819(13) 0.71357(13) 0.34545(14) 0.0220(4) Uani 1 1 d . U
C9 C 0.66659(14) 0.80336(13) 0.26419(14) 0.0244(4) Uani 1 1 d . U
H9 H 0.5870 0.8109 0.2243 0.029 Uiso 1 1 calc R U
C10 C 0.72955(15) 0.87777(13) 0.24332(15) 0.0274(4) Uani 1 1 d . U
H10 H 0.6938 0.9368 0.1894 0.033 Uiso 1 1 calc R U
C11 C 0.84941(15) 0.86770(14) 0.30202(15) 0.0274(4) Uani 1 1 d . U
H11 H 0.8925 0.9187 0.2847 0.033 Uiso 1 1 calc R U
C12 C 0.90182(14) 0.78644(14) 0.38179(15) 0.0259(4) Uani 1 1 d . U
H12 H 0.9817 0.7822 0.4217 0.031 Uiso 1 1 calc R U
C13 C 0.83915(13) 0.70666(13) 0.40729(14) 0.0218(4) Uani 1 1 d . U
C14 C 0.53296(13) 0.63330(13) 0.30967(14) 0.0236(4) Uani 1 1 d . U
H14 H 0.4977 0.6335 0.3588 0.028 Uiso 1 1 calc R U
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
C13 N1 C1 117.96(14) .
N1 C1 C2 117.83(15) .
N1 C1 C6 123.25(14) .
C2 C1 C6 118.87(15) .
C3 C2 C1 120.70(15) .
C3 C2 H2 119.6 .
C1 C2 H2 119.6 .
C5 C4 C3 120.41(16) .
C5 C4 H4 119.8 .
C3 C4 H4 119.8 .
C2 C3 C4 120.53(15) .
C2 C3 H3 119.7 .
C4 C3 H3 119.7 .
C4 C5 C6 121.12(16) .
C4 C5 H5 119.4 .
C6 C5 H5 119.4 .
C7 C6 C5 123.19(15) .
C7 C6 C1 118.40(14) .
C5 C6 C1 118.35(15) .
C8 C7 C6 118.79(14) .
C8 C7 C14 121.43(14) .
C6 C7 C14 119.78(14) .
C7 C8 C9 124.08(15) .
C7 C8 C13 117.94(14) .
C9 C8 C13 117.96(14) .
C10 C9 C8 121.12(15) .
C10 C9 H9 119.4 .
C8 C9 H9 119.4 .
C9 C10 C11 120.34(15) .
C9 C10 H10 119.8 .
C11 C10 H10 119.8 .
C12 C11 C10 120.60(15) .
C12 C11 H11 119.7 .
C10 C11 H11 119.7 .
C11 C12 C13 121.04(15) .
C11 C12 H12 119.5 .
C13 C12 H12 119.5 .
N1 C13 C12 117.47(14) .
N1 C13 C8 123.65(14) .
C12 C13 C8 118.87(14) .
C14 C14 C7 124.20(19) 2_655
C14 C14 H14 117.9 2_655
C7 C14 H14 117.9 .
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
N1 C13 1.346(2) .
N1 C1 1.347(2) .
C1 C2 1.428(2) .
C1 C6 1.435(2) .
C2 C3 1.359(2) .
C2 H2 0.9500 .
C4 C5 1.356(2) .
C4 C3 1.425(3) .
C4 H4 0.9500 .
C3 H3 0.9500 .
C5 C6 1.428(2) .
C5 H5 0.9500 .
C6 C7 1.414(2) .
C7 C8 1.410(2) .
C7 C14 1.485(2) .
C8 C9 1.434(2) .
C8 C13 1.439(2) .
C9 C10 1.357(2) .
C9 H9 0.9500 .
C10 C11 1.429(2) .
C10 H10 0.9500 .
C11 C12 1.348(2) .
C11 H11 0.9500 .
C12 C13 1.428(2) .
C12 H12 0.9500 .
C14 C14 1.334(3) 2_655
C14 H14 0.9500 .
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 PubChem 5944998
