Synthetic routes for a new family of chiral tetradentate ligands containing pyridine rings
Mathias Düggeli; Catherine Goujon-Ginglinger; Sarah Richard Ducotterd; David Mauron; Christophe Bonte; Alexander von Zelewsky; Helen Stoeckli-Evans; Antonia Neels; Org. Biomol. Chem. 1 (2003) 1894–1899; doi:10.1039/b210625f

data_7151373
_publ_section_title
;
 Synthetic routes for a new family of chiral tetradentate ligands
 containing pyridine rings
;
_journal_issue                   11
_journal_name_full               'Org. Biomol. Chem.'
_journal_page_first              1894
_journal_page_last               1899
_journal_paper_doi               10.1039/b210625f
_journal_volume                  1
_journal_year                    2003
_chemical_formula_sum            'C48 H46 N4 O2'
_chemical_formula_weight         710.89
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.673(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   20.7692(18)
_cell_length_b                   6.0863(4)
_cell_length_c                   14.9639(13)
_cell_measurement_reflns_used    6865
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.89
_cell_measurement_theta_min      1.99
_cell_volume                     1864.7(3)
_computing_cell_refinement       'CELL (Stoe IPDS Software, 2000)'
_computing_data_collection       'EXPOSE (Stoe IPDS Software, 2000)'
_computing_data_reduction        'INTEGRATE (Stoe IPDS Software, 2000)'
_computing_molecular_graphics    'PLATON99 (Spek, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 0.81\%A
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'STOE IPDS'
_diffrn_measurement_method       'phi oscillation'
_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  0.0369
_diffrn_reflns_av_sigmaI/netI    0.0429
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            7379
_diffrn_reflns_theta_full        25.89
_diffrn_reflns_theta_max         25.89
_diffrn_reflns_theta_min         1.99
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             756
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.344
_refine_diff_density_min         -0.350
_refine_diff_density_rms         0.111
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.4(15)
_refine_ls_extinction_coef       0.0184(16)
_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   1.026
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         3471
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0334
_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^)+(0.0500P)^2^] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0819
_refine_ls_wR_factor_ref         0.0847
_reflns_number_gt                2907
_reflns_number_total             3471
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b210625f.txt
_cod_data_source_block           cpd8
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               7151373