Single, double and triple deprotonation of a beta-diketimine bearing pendant pyridyl group and the corresponding rare-earth metal complexes.
Xu, Xin; Chen, Yaofeng; Zou, Gang; Sun, Jie; Dalton transactions (Cambridge, England : 2003) 39 (2010) 3952–3958; doi:10.1039/b926898g

data_7025314
_publ_section_title
;
 Single, double and triple deprotonation of a beta-diketimine bearing
 pendant pyridyl group and the corresponding rare-earth metal complexes.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3952
_journal_page_last               3958
_journal_paper_doi               10.1039/b926898g
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C35 H66 La N5 Si4'
_chemical_formula_weight         808.20
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                85.938(3)
_cell_angle_beta                 86.272(3)
_cell_angle_gamma                81.210(3)
_cell_formula_units_Z            2
_cell_length_a                   10.6794(18)
_cell_length_b                   11.7544(19)
_cell_length_c                   18.051(3)
_cell_measurement_reflns_used    4394
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      51.912
_cell_measurement_theta_min      4.577
_cell_volume                     2230.3(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0836
_diffrn_reflns_av_sigmaI/netI    0.0878
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            11582
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    1.092
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4599
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.203
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.397
_exptl_crystal_size_mid          0.311
_exptl_crystal_size_min          0.169
_refine_diff_density_max         3.449
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_refine_diff_density_rms         0.149
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     424
_refine_ls_number_reflns         8145
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0761
_refine_ls_R_factor_gt           0.0654
_refine_ls_shift/su_max          0.047
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0960P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1587
_refine_ls_wR_factor_ref         0.1651
_reflns_number_gt                6860
_reflns_number_total             8145
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b926898g.txt
_cod_data_source_block           cd29481
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2230.4(6)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7025314