Search for Conglomerate in Set of [7]Helquat Salts: Multigram Resolution of Helicene-Viologen Hybrid by Preferential Crystallization
Jan Vávra; Lukáš Severa; Ivana Císařová; Blanka Klepetářová; David Šaman; Dušan Koval; Václav Kašička; Filip Teplý; Journal of Organic Chemistry 78 (2013) 1329–1342; doi:10.1021/jo301615k

data_4027935
_publ_section_title
;
 Search for Conglomerate in Set of [7]Helquat Salts: Multigram Resolution
 of Helicene-Viologen Hybrid by Preferential Crystallization
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1329
_journal_page_last               1342
_journal_paper_doi               10.1021/jo301615k
_journal_volume                  78
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C30 H26 N2'
_chemical_formula_sum            'C30 H26 N2'
_chemical_formula_weight         414.55
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             12-01-09
_audit_creation_method           CRYSTALS_ver_14.05
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.2523(15)
_cell_length_b                   39.556(6)
_cell_length_c                   14.9678(13)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    170
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     7254.2(15)
_computing_cell_refinement       'CrysAlis RED, (Oxford Diffraction, 2002)'
_computing_data_collection       'Xcalibur, (Oxford Diffraction, 2002)'
_computing_data_reduction        'CrysAlis RED, (Oxford Diffraction, 2002)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'Superflip (Palatinus & Chapuis, 2007)'
_diffrn_ambient_temperature      170
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Oxford Diffraction XCALIBUR'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.226
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       48
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            55773
_diffrn_reflns_theta_full        73.586
_diffrn_reflns_theta_max         75.862
_diffrn_reflns_theta_min         4.245
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.169
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.97
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
; 
 Analytical Absorption (De Meulenaer & Tompa, 1965) 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    0.380
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.39
_refine_diff_density_min         -0.43
_refine_ls_abs_structure_details 'Flack (1983), 0 Friedel-pairs'
_refine_ls_abs_structure_Flack   -0.002(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.1139
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         4665
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.1671
_refine_ls_R_factor_gt           0.1023
_refine_ls_shift/su_max          0.0024040
_refine_ls_shift/su_mean         0.2061255
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 24.7 -9.63 19.5 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1836
_refine_ls_wR_factor_gt          0.1174
_refine_ls_wR_factor_ref         0.1049
_reflns_limit_h_max              15
_reflns_limit_h_min              0
_reflns_limit_k_max              48
_reflns_limit_k_min              0
_reflns_limit_l_max              18
_reflns_limit_l_min              -17
_reflns_number_gt                6592
_reflns_number_total             13995
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   4.04
_oxford_diffrn_Wilson_scale      0.30
_oxford_refine_ls_r_factor_ref   0.0865
_oxford_refine_ls_scale          1.633(3)
_oxford_reflns_number_all        13940
_oxford_reflns_threshold_expression_ref I>3.0\s(I)
_oxford_structure_analysis_title 'JV_1946 in P2(1)2(1)2'
_cod_data_source_file            jo301615k_2_4-ClC6H4SO3.cif
_cod_data_source_block           1
_cod_original_cell_volume        7254.1(16)
_cod_original_sg_symbol_H-M      'P c a 21 '
_cod_database_code               4027935