Crystal Structure Change for the Thermochromy of N-Salicylideneanilines. The First Observation by X-ray Diffraction
Keiichiro Ogawa; Yoshiro Kasahara; Yohko Ohtani; Jun Harada; Journal of the American Chemical Society 120 (1998) 7107–7108; doi:10.1021/ja980972v

data_4116771
_publ_section_title
;
 Crystal Structure Change for the Thermochromy of N-Salicylideneanilines.
 The First Observation by X-ray Diffraction
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7107
_journal_page_last               7108
_journal_paper_doi               10.1021/ja980972v
_journal_volume                  120
_journal_year                    1998
_chemical_formula_sum            'C13 H10 Cl N O2'
_chemical_formula_weight         247.67
_chemical_name_systematic
; 
N-(5-chloro-2-hydroxybenzylidene)-4-hydroxyaniline
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 93.184(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1805(4)
_cell_length_b                   12.6383(12)
_cell_length_c                   12.5144(10)
_cell_measurement_reflns_used    29
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      14.5
_cell_measurement_theta_min      10.2
_cell_volume                     1133.92(15)
_computing_cell_refinement       '      LATCON (Xtal: Schwarzenbach, King)'
_computing_data_collection
;
Rigaku AFC6A, MSC/AFC Diffractometer Control Software
;
_computing_data_reduction
;      DIFDAT_ADDREF_SORTRF (Xtal: Stewart, Merom, Holden, Doherty, Hall
                                   Maslen, Spadaccini & Davenport)
;
_computing_molecular_graphics
'      ORTEP (Xtal: Davenport, Hall & Dreissig)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  'Rigaku AFC6A'
_diffrn_measurement_method       \q/2\q
_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  0.0236
_diffrn_reflns_av_sigmaI/netI    0.0693
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3538
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.29
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.324
_exptl_absorpt_correction_T_max  0.9380
_exptl_absorpt_correction_T_min  0.8813
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.241
_refine_diff_density_min         -0.237
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.023(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.984
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         3295
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.984
_refine_ls_R_factor_all          0.1263
_refine_ls_R_factor_gt           0.0430
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0480P)^2^+0.2495P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1260
_reflns_number_gt                1786
_reflns_number_total             3295
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja980972v_5.cif
_cod_data_source_block           pocrt
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0480P)^2^+0.2495P] 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^)+(0.0480P)^2^+0.2495P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               4116771