Dihydroxybenzoquinone and chloranilic acid derivatives of rare earth metals
Abrahams, Brendan F.; Coleiro, Joseph; Ha, Karen; Hoskins, Bernard F.; Orchard, Simon D.; Robson, Richard; Journal of the Chemical Society, Dalton Transactions  (2002) 1586–; doi:10.1039/b109296k

data_7702745
_publ_section_title
;
 Dihydroxybenzoquinone and chloranilic acid derivatives of rare earth
 metals
;
_journal_issue                   8
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1586
_journal_paper_doi               10.1039/b109296k
_journal_year                    2002
_chemical_formula_sum            'C18 H26 Cl6 La2 O25'
_chemical_formula_weight         1132.91
_chemical_name_systematic
'hexaaquatris(chloranilato)dilanthanum(III) heptahydrate'
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                72.14(2)
_cell_angle_beta                 71.60(2)
_cell_angle_gamma                84.59(2)
_cell_formula_units_Z            1
_cell_length_a                   8.425(2)
_cell_length_b                   8.999(3)
_cell_length_c                   12.447(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      18.9
_cell_measurement_theta_min      12.5
_cell_volume                     852.3(4)
_computing_cell_refinement       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_collection       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4 diffractometer'
_diffrn_measurement_method       \w:2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0207
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4608
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.80
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    3.039
_exptl_absorpt_correction_T_max  0.9235
_exptl_absorpt_correction_T_min  0.6942
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SHELX-76 (Sheldrick, 1976)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.207
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular hexagonal plate'
_exptl_crystal_F_000             550
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.102
_refine_diff_density_min         -2.654
_refine_diff_density_rms         0.187
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         3907
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0474
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0750P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1005
_refine_ls_wR_factor_ref         0.1056
_reflns_number_gt                3456
_reflns_number_total             3907
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b109296k.txt
_cod_data_source_block           la2can3abs97
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0750P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. A new data item '_refine_ls_weighting_details' was
created with the value set to
'w=1/[\s^2^(Fo^2^)+(0.0750P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               7702745