Synthesis and Structural Characterization of 2,6-Dimesitylphenyl Complexes of Scandium, Ytterbium, and Yttrium
Gerd W. Rabe; Christian D. Bérubé; Glenn P. A. Yap; Kin-Chung Lam; Thomas E. Concolino; Arnold L. Rheingold; Inorganic Chemistry 41 (2002) 1446–1453; doi:10.1021/ic0109492

data_4317702
_publ_section_title
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 Synthesis and Structural Characterization of 2,6-Dimesitylphenyl
 Complexes of Scandium, Ytterbium, and Yttrium
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1446
_journal_page_last               1453
_journal_paper_doi               10.1021/ic0109492
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C32 H41 Cl2 O2 Sc'
_chemical_formula_weight         573.51
_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                 101.85(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.178(3)
_cell_length_b                   15.468(5)
_cell_length_c                   20.132(5)
_cell_measurement_reflns_used    'reflections from 60 data frames'
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      1.47
_cell_volume                     3101.9(16)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.880
_diffrn_measured_fraction_theta_max 0.880
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0422
_diffrn_reflns_av_sigmaI/netI    0.0377
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            17881
_diffrn_reflns_theta_full        28.61
_diffrn_reflns_theta_max         28.61
_diffrn_reflns_theta_min         1.67
_diffrn_standards_decay_%        <1
_diffrn_standards_number         '50 standard frames at start and end'
_exptl_absorpt_coefficient_mu    0.435
_exptl_absorpt_correction_T_max  0.928076
_exptl_absorpt_correction_T_min  0.757406
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing,R., Acta Cryst. (1995) A51 33-38.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.228
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.465
_refine_diff_density_min         -0.566
_refine_diff_density_rms         0.071
_refine_ls_extinction_coef       0.0036(6)
_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   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     372
_refine_ls_number_reflns         6989
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.1001
_refine_ls_R_factor_gt           0.0589
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0662P)^2^+4.9346P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1438
_refine_ls_wR_factor_ref         0.1786
_reflns_number_gt                4727
_reflns_number_total             6989
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0109492_1.cif
_cod_data_source_block           gr008
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        3102.0(17)
_cod_database_code               4317702