Synthesis and solid-state photochromism of 1,3-diphenyl-4- (2-chlorobenzal)-5-hydroxypyrazole 4-methylthiosemicarbazone.
Guo, Jixi; Liu, Lang; Liu, Guangfei; Jia, Dianzeng; Xie, Xiaolin; Organic letters 9 (2007) 3989–3992; doi:10.1021/ol7016005

data_1505526
_publ_section_title
;
 Synthesis and solid-state photochromism of 1,3-diphenyl-4-
 (2-chlorobenzal)-5-hydroxypyrazole 4-methylthiosemicarbazone.
;
_journal_issue                   20
_journal_name_full               'Organic letters'
_journal_page_first              3989
_journal_page_last               3992
_journal_paper_doi               10.1021/ol7016005
_journal_volume                  9
_journal_year                    2007
_chemical_formula_sum            'C22 H15 Cl N2 O2'
_chemical_formula_weight         374.81
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 104.291(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.0128(8)
_cell_length_b                   6.0024(3)
_cell_length_c                   18.8175(11)
_cell_measurement_reflns_used    10892
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      3.00
_cell_volume                     1752.68(16)
_computing_cell_refinement       'Rapid Auto Version 3.0 (Rigaku 2004)'
_computing_data_collection       'Rapid Auto Version 3.0 (Rigaku 2004)'
_computing_data_reduction        'Rapid Auto Version 3.0 (Rigaku 2004)'
_computing_molecular_graphics    'SHELXTL 5.1 (Bruker AXS, 2000)'
_computing_publication_material  'SHELXTL 5.1 (Bruker AXS, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku R-axis Spider'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0341
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            16237
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.00
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.238
_exptl_absorpt_correction_T_max  0.9858
_exptl_absorpt_correction_T_min  0.9128
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
Higashi, T. (1995). Program for 
Absorption Correction. Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.420
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.347
_refine_diff_density_min         -0.688
_refine_diff_density_rms         0.068
_refine_ls_extinction_coef       0.030(3)
_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   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         4004
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0824
_refine_ls_R_factor_gt           0.0649
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0839P)^2^+1.8841P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1741
_refine_ls_wR_factor_ref         0.1867
_reflns_number_gt                3060
_reflns_number_total             4004
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol7016005-file004.cif
_cod_data_source_block
DCHP(1,_3-diphenyl_4-(2-chlorobenzoyl)_5-hydroxypyrazole)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1505526