Syntheses and structures of some homoleptic acetonitrile lanthanoid(III) complexes
Deacon, Glen B.; Görtler, Bernd; Junk, Peter C.; Lork, Enno; Mews, Rüdiger; Petersen, Jan; Zemva, Boris; Journal of the Chemical Society, Dalton Transactions  (1998) 3887–; doi:10.1039/a805793a

data_7027027
_publ_section_title
;
 Syntheses and structures of some homoleptic acetonitrile lanthanoid(III)
 complexes
;
_journal_issue                   22
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              3887
_journal_paper_doi               10.1039/a805793a
_journal_year                    1998
_chemical_formula_sum            'C20 H30 Al3 Cl12 N10 Pr'
_chemical_formula_weight         1057.79
_chemical_name_systematic
; 
 ? 
;
_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                 108.49
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.0970(10)
_cell_length_b                   13.2510(10)
_cell_length_c                   14.2070(10)
_cell_measurement_reflns_used    46
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      12.541
_cell_measurement_theta_min      4.917
_cell_volume                     2338.3(3)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens XSCANS'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       '2\q/\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0339
_diffrn_reflns_av_sigmaI/netI    0.0532
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12319
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.56
_diffrn_standards_decay_%        'random variation +/-2.0'
_diffrn_standards_interval_count 197
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.811
_exptl_absorpt_correction_T_max  0.4646
_exptl_absorpt_correction_T_min  0.4097
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.502
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1044
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.5
_refine_diff_density_max         1.127
_refine_diff_density_min         -0.908
_refine_diff_density_rms         0.071
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.262(8)
_refine_ls_extinction_coef       0.00203(19)
_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   0.972
_refine_ls_hydrogen_treatment    refU
_refine_ls_matrix_type           full
_refine_ls_number_parameters     428
_refine_ls_number_reflns         10520
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.972
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0295
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0286P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0677
_refine_ls_wR_factor_ref         0.0686
_reflns_number_gt                9542
_reflns_number_total             10520
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            805793asup1.cif
_cod_data_source_block           bg3
_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 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7027027