Cationic rare-earth-metal methyl complexes: a new preparative access exemplified for Y and Pr.
Nieland, Anja; Mix, Andreas; Neumann, Beate; Stammler, Hans-Georg; Mitzel, Norbert W.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6753–6760; doi:10.1039/c002252g

data_7025618
_publ_section_title
;
 Cationic rare-earth-metal methyl complexes: a new preparative access
 exemplified for Y and Pr.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6753
_journal_page_last               6760
_journal_paper_doi               10.1039/c002252g
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C21 H43 O8 Pr, 2(C4 H12 Al)'
_chemical_formula_sum            'C29 H67 Al2 O8 Pr'
_chemical_formula_weight         738.70
_chemical_name_systematic        ?
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 92.5470(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.86100(10)
_cell_length_b                   14.7330(2)
_cell_length_c                   21.8646(2)
_cell_measurement_reflns_used    77585
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     3817.02(7)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect, Bruker AXS, 2004'
_computing_data_reduction
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL-PLUS (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      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.043
_diffrn_reflns_av_sigmaI/netI    0.0262
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            80699
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    1.362
_exptl_absorpt_correction_T_max  0.8989
_exptl_absorpt_correction_T_min  0.6855
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             1560
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.882
_refine_diff_density_min         -0.818
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         8736
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0321
_refine_ls_R_factor_gt           0.0255
_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^)+(0.0276P)^2^+3.2168P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0606
_refine_ls_wR_factor_ref         0.0635
_reflns_number_gt                7629
_reflns_number_total             8736
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c002252g.txt
_cod_data_source_block           compound6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_sg_symbol_H-M      'P 21/n'
_cod_database_code               7025618