Mechanochemical synthesis of <i>N</i>-salicylideneaniline: thermosalient effect of polymorphic crystals
Mittapalli, Sudhir; Sravanakumar Perumalla, D.; Nangia, Ashwini; IUCrJ 4 (2017) –; doi:10.1107/S2052252517004043

data_1545680
_publ_section_title
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 Mechanochemical synthesis of <i>N</i>-salicylideneaniline: thermosalient
 effect of polymorphic crystals
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_journal_coeditor_code           LQ5003
_journal_issue                   3
_journal_name_full               IUCrJ
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2052252517004043
_journal_volume                  4
_journal_year                    2017
_chemical_formula_moiety         'C14 H10 Cl2 N2 O2'
_chemical_formula_sum            'C14 H10 Cl2 N2 O2'
_chemical_formula_weight         309.14
_chemical_melting_point          522.3
_chemical_name_common
((E)-4-((3,5-Dichloro-2-Hydroxybenzylidene)amino)benzamide
_chemical_name_systematic
((E)-4-((3,5-Dichloro-2-Hydroxybenzylidene)amino)benzamide
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                81.461(6)
_cell_angle_beta                 77.033(7)
_cell_angle_gamma                80.551(6)
_cell_formula_units_Z            2
_cell_length_a                   8.4492(7)
_cell_length_b                   9.1167(5)
_cell_length_c                   9.1545(8)
_cell_measurement_reflns_used    1385
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      66.601
_cell_measurement_theta_min      4.951
_cell_volume                     673.27(9)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_unetI/netI     0.0753
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5392
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        66.601
_diffrn_reflns_theta_max         66.601
_diffrn_reflns_theta_min         4.951
_exptl_absorpt_coefficient_mu    4.367
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.29
_refine_diff_density_max         0.240
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.977
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         2366
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.977
_refine_ls_R_factor_all          0.0888
_refine_ls_R_factor_gt           0.0491
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0344P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0922
_refine_ls_wR_factor_ref         0.1183
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1385
_reflns_number_total             2366
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            lq5003.cif
_cod_data_source_block           AFORMI
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '522.3K' was changed to '522.3' - the
value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
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_cod_database_code               1545680
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              26557
_shelx_hkl_checksum              84996