Interplay of Weak Interactions and Structural Features in the Solid State Self-Assembly of Symmetric Diamides
Feng, Zheng; Fan, Ailong; Valiyaveettil, Suresh; Vittal, Jagadese J.; Crystal Growth & Design 3 (2003) 555–; doi:10.1021/cg034045y

data_4505715
_publ_section_title
;
 Interplay of Weak Interactions and Structural Features in the Solid State
 Self-Assembly of Symmetric Diamides
;
_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              555
_journal_paper_doi               10.1021/cg034045y
_journal_volume                  3
_journal_year                    2003
_chemical_formula_sum            'C54 H76 N2 O4'
_chemical_formula_weight         817.17
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.332(2)
_cell_angle_beta                 93.400(2)
_cell_angle_gamma                108.454(2)
_cell_formula_units_Z            1
_cell_length_a                   7.9247(5)
_cell_length_b                   10.2438(7)
_cell_length_c                   16.805(1)
_cell_measurement_reflns_used    1740
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.06
_cell_volume                     1246.19(14)
_computing_cell_refinement       'Bruker AXS, SAINT'
_computing_data_collection       'Bruker AXS, SMART'
_computing_data_reduction        'Bruker AXS, SAINT'
_computing_molecular_graphics    'Bruker AXS, SHELXTL'
_computing_publication_material  'Bruker AXS, SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.885
_diffrn_measured_fraction_theta_max 0.885
_diffrn_measurement_method       '\w scans'
_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  0.0258
_diffrn_reflns_av_sigmaI/netI    0.0567
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            6535
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.9806
_exptl_absorpt_correction_T_min  0.6070
_exptl_absorpt_correction_type   'sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.089
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular shape, cut'
_exptl_crystal_F_000             446
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.040
_refine_ls_extinction_coef       0.0058(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.152
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         4509
_refine_ls_number_restraints     196
_refine_ls_restrained_S_all      1.213
_refine_ls_R_factor_all          0.1867
_refine_ls_R_factor_gt           0.1188
_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^)+(0.0575P)^2^+1.2726P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2247
_refine_ls_wR_factor_ref         0.2591
_reflns_number_gt                2602
_reflns_number_total             4509
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg034045ysi20030326_110629.cif
_cod_data_source_block           sure2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        1246.2(1)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4505715