Conformational change of <i>N</i>-benzylideneanilines in crystals
Harada, Jun; Harakawa, Mayuko; Ogawa, Keiichiro; Acta Crystallographica Section B 60 (2004) 589–597; doi:10.1107/S0108768104016623

data_2102605
_publ_section_title
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 Conformational change of <i>N</i>-benzylideneanilines in crystals
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              589
_journal_page_last               597
_journal_paper_doi               10.1107/S0108768104016623
_journal_volume                  60
_journal_year                    2004
_chemical_formula_sum            'C15 H15 N'
_chemical_formula_weight         209.28
_chemical_melting_point          362.55
_chemical_name_systematic
;
N-(4-methylbenzylidene)-4-methylaniline
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.5180(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.8649(6)
_cell_length_b                   4.8663(3)
_cell_length_c                   11.9484(8)
_cell_measurement_reflns_used    3145
_cell_measurement_temperature    250
_cell_measurement_theta_max      30.0
_cell_measurement_theta_min      3.4
_cell_volume                     573.57(6)
_computing_cell_refinement       'SAINT (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 2000)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      250
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD diffractometer'
_diffrn_measurement_method       \w_scan
_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  0.0194
_diffrn_reflns_av_sigmaI/netI    0.0140
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8404
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.06
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  0.9944
_exptl_absorpt_correction_T_min  0.9724
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.223
_refine_diff_density_min         -0.196
_refine_ls_extinction_coef       0.126(13)
_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   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     89
_refine_ls_number_reflns         1677
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0477
_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^)+(0.0552P)^2^+0.1239P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1346
_reflns_number_gt                1406
_reflns_number_total             1677
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bk5008.cif
_cod_data_source_block           3_250K
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '89.4_C' was changed to '362.55' - it
was converted from degrees Celsius(C) to Kelvins(K).

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 '89.4_C' was changed to '362.55' - it
was converted from degrees Celsius(C) to Kelvins(K).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P_1_21/c_1
_cod_database_code               2102605
_cod_database_fobs_code          2102605