Chiral Vicinal Bis(amide) Molecules: Polar/Helical Assemblies in Crystals and Second Harmonic Generation
Anthony, S. Philip; Basavaiah, K.; Radhakrishnan, T. P.; Crystal Growth & Design 5 (2005) 1663–; doi:10.1021/cg0501231

data_4505163
_publ_section_title
;
 Chiral Vicinal Bis(amide) Molecules:&#x2009; Polar/Helical Assemblies in
 Crystals and Second Harmonic Generation
;
_journal_issue                   5
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1663
_journal_paper_doi               10.1021/cg0501231
_journal_volume                  5
_journal_year                    2005
_chemical_absolute_configuration syn
_chemical_formula_sum            'C20 H22 N2 O2'
_chemical_formula_weight         322.40
_chemical_name_common            N,N'-bis(benzoyl)-(1R,2R)-diaminocyclohexane
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_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                 115.0250(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.2636(9)
_cell_length_b                   9.7900(9)
_cell_length_c                   10.7319(10)
_cell_measurement_temperature    273(2)
_cell_volume                     881.91(14)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.957
_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  0.0325
_diffrn_reflns_av_sigmaI/netI    0.0390
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            10344
_diffrn_reflns_theta_full        28.23
_diffrn_reflns_theta_max         28.23
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9914
_exptl_absorpt_correction_T_min  0.8523
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (G. Gheldrick)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.214
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Cuboid
_exptl_crystal_F_000             344
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.165
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.928
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         4044
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.928
_refine_ls_R_factor_all          0.0541
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0801
_refine_ls_wR_factor_ref         0.0847
_reflns_number_gt                3120
_reflns_number_total             4044
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0501231si20050403_110314.cif
_cod_data_source_block           BBDC
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P21
_cod_database_code               4505163
_check                           for