Synthesis and molecular structure of pentadienyl complexes of the rare-earth metals.
Raeder, Jan; Reiners, Matthias; Baumgarten, Robert; Münster, Katharina; Baabe, Dirk; Freytag, Matthias; Jones, Peter G.; Walter, Marc D.; Dalton transactions (Cambridge, England : 2003) 47 (2018) 14468–14482; doi:10.1039/c8dt03123a

data_7047474
_publ_section_title
;
 Synthesis and molecular structure of pentadienyl complexes of the
 rare-earth metals.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14468
_journal_page_last               14482
_journal_paper_doi               10.1039/c8dt03123a
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C47 H82 Gd2 O2'
_chemical_formula_weight         993.63
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-07-12 deposited with the CCDC.
2018-08-29 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1181(5)
_cell_length_b                   20.1122(9)
_cell_length_c                   22.9975(10)
_cell_measurement_reflns_used    12239
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      75.7480
_cell_measurement_theta_min      3.8120
_cell_volume                     4679.9(4)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43c (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43c (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43c (Rigaku OD, 2015)'
_computing_molecular_graphics    'Bruker XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.3543
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur, Atlas, Nova'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.1049
_diffrn_reflns_av_sigmaI/netI    0.0676
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            53902
_diffrn_reflns_theta_full        75.00
_diffrn_reflns_theta_max         76.21
_diffrn_reflns_theta_min         3.84
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    18.367
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.37326
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.38.43c (Rigaku Oxford Diffraction, 2015) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.410
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2032
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.554
_refine_diff_density_min         -0.711
_refine_diff_density_rms         0.096
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.012(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     552
_refine_ls_number_reflns         9724
_refine_ls_number_restraints     98
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0473
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0135P)^2^+6.4861P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0796
_refine_ls_wR_factor_ref         0.0831
_reflns_number_gt                8781
_reflns_number_total             9724
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8dt03123a2.cif
_cod_data_source_block           ra12fr
_cod_depositor_comments
'Adding full bibliography for 7047466--7047481.cif.'
_cod_database_code               7047474