Synthesis and Structure of Silicon-Bridged Boratabenzene Fluorenyl Rare-Earth Metal Complexes
Wang, Chunhong; Xiang, Li; Leng, Xuebing; Chen, Yaofeng; Organometallics 35 (2016) 1995–; doi:10.1021/acs.organomet.6b00282

data_4088666
_publ_section_title
;
 Synthesis and Structure of Silicon-Bridged Boratabenzene Fluorenyl
 Rare-Earth Metal Complexes
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              1995
_journal_paper_doi               10.1021/acs.organomet.6b00282
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C33 H40 B Gd N2 Si'
_chemical_formula_sum            'C33 H40 B Gd N2 Si'
_chemical_formula_weight         660.82
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-03-30
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.387(4)
_cell_length_b                   20.458(5)
_cell_length_c                   22.328(6)
_cell_measurement_reflns_used    3093
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      25.13
_cell_measurement_theta_min      2.19
_cell_volume                     6115(3)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XH (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140.15
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1673
_diffrn_reflns_av_unetI/netI     0.1105
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            58350
_diffrn_reflns_theta_full        30.70
_diffrn_reflns_theta_max         30.70
_diffrn_reflns_theta_min         1.82
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.232
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.5440
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1070 before and 0.0772 after correction.
The Ratio of minimum to maximum transmission is 0.7291.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.436
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2680
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         5.288
_refine_diff_density_min         -1.225
_refine_diff_density_rms         0.197
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.997
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         9395
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.1266
_refine_ls_R_factor_gt           0.0596
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0685P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1250
_refine_ls_wR_factor_ref         0.1522
_reflns_number_gt                5372
_reflns_number_total             9395
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om6b00282_si_002.cif
_cod_data_source_block           13b
_cod_database_code               4088666
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C21(H21A,H21B), C23(H23A,H23B), C25(H25A,H25B)
2.b Aromatic/amide H refined with riding coordinates:
 C18(H18), C17(H17), C16(H16), C15(H15), C14(H14), C13(H13), C12(H12),
 C11(H11), C2(H2), C1(H1), C5(H5), C4(H4), C27(H27), C28(H28), C29(H29),
 C30(H30)
2.c Idealised Me refined as rotating group:
 C19(H19A,H19B,H19C), C20(H20A,H20B,H20C), C22(H22A,H22B,H22C), C24(H24A,H24B,
 H24C), C32(H32A,H32B,H32C), C33(H33A,H33B,H33C)
;
_olex2_submission_special_instructions 'No special instructions were received'