Supramolecular Double-Helix Formation by Diastereoisomeric Conformations of Configurationally Enantiomeric Macrocycles.
Samanta, Avik; Liu, Zhichang; Nalluri, Siva Krishna Mohan; Zhang, Yu; Schatz, George C.; Stoddart, J. Fraser; Journal of the American Chemical Society 138 (2016) 14469–14480; doi:10.1021/jacs.6b09258

data_4125293
_publ_section_title
;
 Supramolecular Double-Helix Formation by Diastereoisomeric Conformations
 of Configurationally Enantiomeric Macrocycles.
;
_journal_issue                   43
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14469
_journal_page_last               14480
_journal_paper_doi               10.1021/jacs.6b09258
_journal_volume                  138
_journal_year                    2016
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C46 H32 N4 O10, 0.5(C2 H4 Cl2)'
_chemical_formula_sum            'C47 H34 Cl N4 O10'
_chemical_formula_weight         850.23
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      tetragonal
_space_group_IT_number           95
_space_group_name_Hall           'P 4cw 2c'
_space_group_name_H-M_alt        'P 43 2 2'
_symmetry_space_group_name_Hall  'P 4cw 2c'
_symmetry_space_group_name_H-M   'P 43 2 2'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2015-11-11
_audit_creation_method
;
Olex2 1.2
(compiled 2015.09.30 svn.r3233 for OlexSys, GUI svn.r5103)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.4749(5)
_cell_length_b                   15.4749(5)
_cell_length_c                   40.5132(15)
_cell_measurement_reflns_used    6988
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      46.699
_cell_measurement_theta_min      3.057
_cell_volume                     9701.8(6)
_computing_cell_refinement       'SAINT V8.34A (Bruker, 2013)'
_computing_data_collection       'APEX2 V2014.11-0 (Bruker, 2014)'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XM (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.595
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Kappa APEX CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'MX optics'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0913
_diffrn_reflns_av_unetI/netI     0.0557
_diffrn_reflns_Laue_measured_fraction_full 0.595
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            32085
_diffrn_reflns_point_group_measured_fraction_full 0.581
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         50.473
_diffrn_reflns_theta_min         2.855
_diffrn_source                   microsource
_exptl_absorpt_coefficient_mu    1.173
_exptl_absorpt_correction_T_max  0.7500
_exptl_absorpt_correction_T_min  0.6504
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1098 before and 0.0630 after correction.
The Ratio of minimum to maximum transmission is 0.8672.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.164
_exptl_crystal_description       needle
_exptl_crystal_F_000             3528
_exptl_crystal_recrystallization_method
'The material was recrystallised from --- by as supplied'
_exptl_crystal_size_max          0.214
_exptl_crystal_size_mid          0.027
_exptl_crystal_size_min          0.016
_refine_diff_density_max         0.251
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details
;
 Flack x determined using 1040 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.09(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     559
_refine_ls_number_reflns         5113
_refine_ls_number_restraints     513
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.1184
_refine_ls_R_factor_gt           0.0918
_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/[\s^2^(Fo^2^)+(0.1996P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2667
_refine_ls_wR_factor_ref         0.2880
_reflns_Friedel_coverage         0.700
_reflns_Friedel_fraction_full    0.562
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                3404
_reflns_number_total             5113
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b09258_si_003.cif
_cod_data_source_block           cx0614
_cod_depositor_comments
'Adding full bibliography for 4125292--4125294.cif.'
_cod_original_cell_volume        9701.8(7)
_cod_database_code               4125293
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.981
_shelx_estimated_absorpt_t_min   0.787
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2. Rigid body (RIGU) restrains
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
3.a Ternary CH refined with riding coordinates:
 C1(H1), C2(H2), C1A(H1A), C6A(H6A)
3.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C6(H6B,H6C), C2A(H2AA,H2AB), C3A(H3AA,
 H3AB), C4A(H4AA,H4AB), C5A(H5AA,H5AB), C1S(H1SA,H1SB)
3.c Aromatic/amide H refined with riding coordinates:
 C9(H9), C11(H11), C12(H12), C17(H17), C18(H18), C23(H23), C9A(H9A),
 C11A(H11A), C12A(H12A), C17A(H17A), C18A(H18A), C23A(H23A)
;
_smtbx_masks_special_details
;
The solvent masking procedure as implemented in Olex2 was used to remove the
electronic contribution of solvent molecules from the refinement.  As the exact
solvent content is not known, only the atoms used in the refinement model are
reported in the formula here.

Total solvent accessible volume / cell = 2442.6 Ang^3^ [25.2%]
Total electron count / cell = 727.8
;
_shelx_res_checksum              40257
_shelx_hkl_checksum              41895
_olex2_date_sample_data_collection 2015-11-10
_olex2_date_sample_submission    2015-11-09
_olex2_exptl_crystal_mounting_method
'The crystal was mounted on a glass fibre in Paratone oil'
_olex2_submission_original_sample_id cx0614
_olex2_submission_special_instructions 'No special instructions were received'