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_7114805
_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_sum            'C15 H14 N2 O3'
_chemical_formula_weight         270.28
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.639(2)
_cell_length_b                   9.699(5)
_cell_length_c                   25.036(8)
_cell_measurement_temperature    293(2)
_cell_volume                     1369.3(10)
_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  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0334
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            3570
_diffrn_reflns_theta_max         20.00
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.311
_exptl_crystal_description       oblongs
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.099
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -2.60(312)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.087
_refine_ls_goodness_of_fit_obs   1.094
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         1285
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_restrained_S_obs      1.094
_refine_ls_R_factor_all          0.0567
_refine_ls_R_factor_obs          0.0555
_refine_ls_shift/esd_max         0.004
_refine_ls_shift/esd_mean        0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0961P)^2^+0.4343P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1372
_refine_ls_wR_factor_obs         0.1355
_reflns_number_observed          1242
_reflns_number_total             1285
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b101575n.txt
_cod_data_source_block           gah08
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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^)+(0.0961P)^2^+0.4343P] 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^)+(0.0961P)^2^+0.4343P] 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)2(1)2(1)
_cod_database_code               7114805