Substituent effects on aromatic interactions in the solid state
Adams, Harry; Bernad Jr., Pablo L.; Hembury, Guy A.; Hunter, Christopher A.; McCabe, James F.; Eggleston, Drake S.; Haltiwanger, R. Curtis; Livingstone, David J.; D. M. Harris, Kenneth; Kariuki, Benson M.; Chemical Communications  (2001) 1500–; doi:10.1039/b101575n

data_7114816
_publ_section_title
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 Substituent effects on aromatic interactions in the solid state
;
_journal_issue                   16
_journal_name_full               'Chemical Communications'
_journal_page_first              1500
_journal_paper_doi               10.1039/b101575n
_journal_year                    2001
_chemical_formula_sum            'C21 H27 N3 O3'
_chemical_formula_weight         369.46
_chemical_name_common
'N-4 nitro 2,6 diisopropylphenyl 4 dimethyl aminobenzamide'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 112.86(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.062(5)
_cell_length_b                   10.059(4)
_cell_length_c                   16.675(5)
_cell_measurement_temperature    293(2)
_cell_volume                     2018.9(13)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_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  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0627
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            4538
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    0.082
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_description       needles
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.8
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.231
_refine_diff_density_min         -0.189
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.013
_refine_ls_goodness_of_fit_obs   1.130
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         3551
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.013
_refine_ls_restrained_S_obs      1.128
_refine_ls_R_factor_all          0.1355
_refine_ls_R_factor_obs          0.0663
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0849P)^2^+0.6954P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2065
_refine_ls_wR_factor_obs         0.1607
_reflns_number_observed          1828
_reflns_number_total             3551
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b101575n.txt
_cod_data_source_block           gah20
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0849P)^2^+0.6954P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0849P)^2^+0.6954P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7114816