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_7151371
_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            'C25 H25 Cl3 N2 O'
_chemical_formula_weight         475.82
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 94.080(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.6825(5)
_cell_length_b                   7.4085(4)
_cell_length_c                   23.4403(18)
_cell_measurement_reflns_used    7989
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.92
_cell_measurement_theta_min      2.61
_cell_volume                     1157.53(14)
_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 0.942
_diffrn_measured_fraction_theta_max 0.942
_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  0.0357
_diffrn_reflns_av_sigmaI/netI    0.0480
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            9156
_diffrn_reflns_theta_full        25.92
_diffrn_reflns_theta_max         25.92
_diffrn_reflns_theta_min         2.61
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.416
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colurless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.262
_refine_diff_density_min         -0.270
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.06(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.923
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         4208
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.923
_refine_ls_R_factor_all          0.0403
_refine_ls_R_factor_gt           0.0299
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w==1/[\s^2^(Fo^2^)+(0.0375P)^2^] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0657
_refine_ls_wR_factor_ref         0.0684
_reflns_number_gt                3435
_reflns_number_total             4208
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b210625f.txt
_cod_data_source_block           cpd3
_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_cell_volume        1157.52(14)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7151371