Homopolymeric pyrrolidine-amide oligonucleotide mimics: Fmoc-synthesis and DNA/RNA binding properties.
Tan, T. H. Samuel; Worthington, Roberta J.; Pritchard, Robin G.; Morral, Jordi; Micklefield, Jason; Organic & biomolecular chemistry 5 (2007) 239–248; doi:10.1039/b613384n

data_7151042
_publ_section_title
;
 Homopolymeric pyrrolidine-amide oligonucleotide mimics: Fmoc-synthesis
 and DNA/RNA binding properties.
;
_journal_issue                   2
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              239
_journal_page_last               248
_journal_paper_doi               10.1039/b613384n
_journal_volume                  5
_journal_year                    2007
_chemical_absolute_configuration syn
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C31 H33 N7 O6'
_chemical_formula_sum            'C31 H33 N7 O6'
_chemical_formula_weight         599.64
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_date             2004-03-24T00:42:22-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.5810(4)
_cell_length_b                   14.4762(5)
_cell_length_c                   17.7027(7)
_cell_measurement_reflns_used    10894
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      1.018
_cell_measurement_wavelength     0.71073
_cell_volume                     2967.84(19)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Nonius Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.261828E-1
_diffrn_orient_matrix_UB_12      0.279677E-1
_diffrn_orient_matrix_UB_13      0.48729E-1
_diffrn_orient_matrix_UB_21      -0.788031E-1
_diffrn_orient_matrix_UB_22      0.265168E-1
_diffrn_orient_matrix_UB_23      0.7944E-2
_diffrn_orient_matrix_UB_31      -0.236764E-1
_diffrn_orient_matrix_UB_32      -0.573285E-1
_diffrn_orient_matrix_UB_33      0.274469E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.12
_diffrn_reflns_av_unetI/netI     0.0794
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20759
_diffrn_reflns_reduction_process
;
Scaled and merged with SORTAV
R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.04
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  1.009
_exptl_absorpt_correction_T_min  0.991
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.342
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.262
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   3.9(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     529
_refine_ls_number_reflns         2954
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0891
_refine_ls_R_factor_gt           0.045
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0374P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0771
_refine_ls_wR_factor_ref         0.0903
_reflns_number_gt                2005
_reflns_number_total             2954
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b613384n.txt
_cod_data_source_block           p
_cod_database_code               7151042