X-Ray crystallographic and spectroscopic properties of eight Schiff bases as evidence of the proton transfer reaction. Role of the intermolecular hydrogen bond
Domínguez, Oscar; Rodríguez-Molina, Braulio; Rodríguez, Mario; Ariza, Armando; Farfán, Norberto; Santillan, Rosa; New Journal of Chemistry 35 (2011) 156–; doi:10.1039/c0nj00179a

data_7052533
_publ_section_title
;
 X-Ray crystallographic and spectroscopic properties of eight Schiff
 bases as evidence of the proton transfer reaction. Role of the
 intermolecular hydrogen bond
;
_journal_issue                   1
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              156
_journal_paper_doi               10.1039/c0nj00179a
_journal_volume                  35
_journal_year                    2011
_chemical_formula_moiety         'C22 H29 N1 O2'
_chemical_formula_sum            'C22 H29 N O2'
_chemical_formula_weight         339.46
_chemical_name_common
'2,4-ditertbutyl-6-((2-hydroxymethylphenylimino)methyl) phenol'
_chemical_name_systematic
;
2,4-ditertbutyl-6-[(2-hydroxymethylphenylimino)methyl] phenol
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                95.9376(7)
_cell_angle_beta                 104.1553(8)
_cell_angle_gamma                92.2975(8)
_cell_formula_units_Z            4
_cell_length_a                   10.2518(2)
_cell_length_b                   10.4845(2)
_cell_length_c                   19.6987(4)
_cell_measurement_reflns_used    14677
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_measurement_wavelength     0.71073
_cell_volume                     2037.31(7)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0575
_diffrn_reflns_av_sigmaI/netI    0.0772
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            23875
_diffrn_reflns_theta_full        27.56
_diffrn_reflns_theta_max         27.56
_diffrn_reflns_theta_min         1.07
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.107
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.284
_refine_diff_density_min         -0.378
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     495
_refine_ls_number_reflns         9270
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1378
_refine_ls_R_factor_gt           0.0719
_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^)+(0.0846P)^2^+0.2356P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1864
_refine_ls_wR_factor_ref         0.2251
_reflns_number_gt                5174
_reflns_number_total             9270
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            C0NJ00179A.TXT
_cod_data_source_block           Compound2
_cod_database_code               7052533