Nonclassical Odd–even Alternation in Mixed-Chain Diacylethanolamines: Implications of Polymorphism
Tarafdar, Pradip K.; Reddy, S. Thirupathi; Swamy, Musti J.; Crystal Growth & Design 12 (2012) 1132–; doi:10.1021/cg200698t

data_4505455
_publ_section_title
;
 Nonclassical Odd--even Alternation in Mixed-Chain Diacylethanolamines:
 Implications of Polymorphism
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1132
_journal_paper_doi               10.1021/cg200698t
_journal_volume                  12
_journal_year                    2012
_chemical_formula_moiety         'C32 H63 N O3'
_chemical_formula_sum            'C32 H63 N O3'
_chemical_formula_weight         509.83
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 92.577(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   74.26(3)
_cell_length_b                   4.913(2)
_cell_length_c                   9.069(4)
_cell_measurement_reflns_used    2975
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.07
_cell_measurement_theta_min      2.47
_cell_volume                     3305(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.941
_diffrn_measured_fraction_theta_max 0.941
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1021
_diffrn_reflns_av_sigmaI/netI    0.0943
_diffrn_reflns_limit_h_max       74
_diffrn_reflns_limit_h_min       -74
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            11708
_diffrn_reflns_theta_full        21.00
_diffrn_reflns_theta_max         21.00
_diffrn_reflns_theta_min         1.37
_exptl_absorpt_coefficient_mu    0.063
_exptl_absorpt_correction_T_max  0.9937
_exptl_absorpt_correction_T_min  0.9775
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   brukarsadbas
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.024
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.292
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.138
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     331
_refine_ls_number_reflns         3322
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.138
_refine_ls_R_factor_all          0.1829
_refine_ls_R_factor_gt           0.1464
_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^)+(0.0418P)^2^+21.2522P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2789
_refine_ls_wR_factor_ref         0.2994
_reflns_number_gt                2430
_reflns_number_total             3322
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg200698t_si_005.cif
_cod_data_source_block           npom
_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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        3306(2)
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               4505455