Recognition of sequence-information in synthetic copolymer chains by a conformationally-constrained tweezer molecule
Colquhoun, Howard M.; Zhu, Zhixue; Cardin, Christine J.; Drew, Michael G. B.; Gan, Yu; Faraday Discussions 143 (2009) 205–; doi:10.1039/b900684b

data_1515944
_publ_section_title
;
 Recognition of sequence-information in synthetic copolymer chains by a
 conformationally-constrained tweezer molecule
;
_journal_name_full               'Faraday Discussions'
_journal_page_first              205
_journal_paper_doi               10.1039/b900684b
_journal_volume                  143
_journal_year                    2009
_chemical_formula_sum            'C41.5 H29.5 N3 O2.75'
_chemical_formula_weight         613.68
_chemical_name_systematic
;
?
;
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   28.41(3)
_cell_length_b                   28.41(3)
_cell_length_c                   16.570(18)
_cell_measurement_temperature    293(2)
_cell_volume                     13374(2)
_computing_cell_refinement       XDS
_computing_data_collection       'XDS (Kabsch, 1988)'
_computing_data_reduction        XDS
_computing_molecular_graphics    PLATON(Spek,2004)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.852
_diffrn_measured_fraction_theta_max 0.852
_diffrn_measurement_device       'Marresearch Image Plate'
_diffrn_measurement_method       '95 frames, counting time 2 min.'
_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  0.1181
_diffrn_reflns_av_sigmaI/netI    0.1716
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15079
_diffrn_reflns_theta_full        25.89
_diffrn_reflns_theta_max         25.89
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.219
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             5136
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.541
_refine_diff_density_min         -0.329
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     437
_refine_ls_number_reflns         5541
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.1974
_refine_ls_R_factor_gt           0.1010
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
_refine_ls_weighting_details
w=1/[\s^2^(Fo^2^)+(0.1440P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2470
_refine_ls_wR_factor_ref         0.2866
_reflns_number_gt                2412
_reflns_number_total             5541
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b900684b.txt
_cod_data_source_block           7
_cod_original_cell_volume        13374(26)
_cod_original_sg_symbol_H-M      I41/a
_cod_database_code               1515944