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_7114801
_publ_section_title
;
 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_structural     'N-2 methylphenyl 4 t-butylbenzamide'
_chemical_formula_sum            'C18 H21 N O'
_chemical_formula_weight         267.36
_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
_cell_angle_alpha                93.932(7)
_cell_angle_beta                 91.00(5)
_cell_angle_gamma                89.18(2)
_cell_formula_units_Z            4
_cell_length_a                   10.094(4)
_cell_length_b                   15.829(10)
_cell_length_c                   10.054(6)
_cell_measurement_temperature    296(2)
_cell_volume                     1602.2(15)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measurement_device       'Rigaku R-Axis'
_diffrn_measurement_method       'Image plate scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0778
_diffrn_reflns_av_sigmaI/netI    0.2605
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            3630
_diffrn_reflns_theta_max         20.96
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    0.068
_exptl_crystal_density_diffrn    1.108
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.186
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   0.867
_refine_ls_goodness_of_fit_obs   1.163
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         2317
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.867
_refine_ls_restrained_S_obs      1.163
_refine_ls_R_factor_all          0.1963
_refine_ls_R_factor_obs          0.0676
_refine_ls_shift/esd_max         -0.039
_refine_ls_shift/esd_mean        0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1338
_refine_ls_wR_factor_obs         0.0962
_reflns_number_observed          910
_reflns_number_total             2317
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b101575n.txt
_cod_data_source_block           gah02
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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^)+(0.0000P)^2^+0.0000P] 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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1602.4(15)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7114801