(<i>R</i>,<i>R</i>)-<i>N</i>,<i>N</i>'-Bis(5-chlorosalicylidene)-1,2-cyclohexanediamine
Yang, Ming-Hua; Li, Yi-Zhi; Zhu, Cheng-Jian; Pan, Yi; Liu, Shan-Hui; Acta Crystallographica Section E 60 (2004) o2397–o2398; doi:10.1107/S1600536804029319

data_2204659
_publ_section_title
(<i>R</i>,<i>R</i>)-<i>N</i>,<i>N</i>'-Bis(5-chlorosalicylidene)-1,2-cyclohexanediamine
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2397
_journal_page_last               o2398
_journal_paper_doi               10.1107/S1600536804029319
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C20 H20 Cl2 N2 O2'
_chemical_formula_moiety         'C20 H20 Cl2 N2 O2'
_chemical_formula_sum            'C20 H20 Cl2 N2 O2'
_chemical_formula_weight         391.28
_chemical_melting_point          466.2(10)
_chemical_name_common
;
(R,R)-N,N'-Bis(5-chloro-salicylidene)-1,2-cyclohexanediamine
;
_chemical_name_systematic
(R,R)-4,4'-dichloro-2,2'-[cyclohexane-1,2-diylbis(nitrilomethylidyne)]diphenol
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   18.990(6)
_cell_length_b                   5.829(2)
_cell_length_c                   8.839(3)
_cell_measurement_reflns_used    780
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.98
_cell_measurement_theta_min      2.54
_cell_volume                     978.4(6)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2000)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker SMART Apex CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0579
_diffrn_reflns_av_sigmaI/netI    0.0413
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5037
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.14
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.348
_exptl_absorpt_correction_T_max  0.93
_exptl_absorpt_correction_T_min  0.91
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.328
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.339
_refine_diff_density_min         -0.202
_refine_ls_abs_structure_details '(Flack, 1983)'
_refine_ls_abs_structure_Flack   0.13(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1879
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0628
_refine_ls_R_factor_gt           0.0538
_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^)+(0.0882P)^2^+0.127P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1492
_refine_ls_wR_factor_ref         0.1549
_reflns_number_gt                1554
_reflns_number_total             1879
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cv6411.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '465.2-467.2' was changed to
'466.2(10)' - the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '465.2-467.2' was changed to
'466.2(10)' - the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_database_code               2204659
_cod_database_fobs_code          2204659