Synthesis of Homoleptic Barium Alkoxides and Aryloxides and Their Reactions with Al(CH3)3: a Convenient Route to Heterometallic Species
Józef Utko; Sławomir Szafert; Lucjan B. Jerzykiewicz; Piotr Sobota; Inorganic Chemistry 44 (2005) 5194–5196; doi:10.1021/ic0503129

data_4309269
_publ_contact_author_email       plas@wchuwr.chem.uni.wroc.pl
_publ_contact_author_name        'Piotr Sobota'
_publ_contact_author_phone       +48-(0)-71-375-73-06
_publ_section_title
;
Synthesis of Homoleptic Barium Alkoxides and Aryloxides and Their Reactions
with Al(CH3)3: a Convenient Route to Heterometallic Species
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5194
_journal_page_last               5196
_journal_paper_doi               10.1021/ic0503129
_journal_volume                  44
_journal_year                    2005
_chemical_formula_moiety         'C44 H56 Al2 Ba O8'
_chemical_formula_sum            'C44 H56 Al2 Ba O8'
_chemical_formula_weight         904.19
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 103.25(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.500(2)
_cell_length_b                   17.710(2)
_cell_length_c                   20.468(2)
_cell_measurement_reflns_used    6732
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      2
_cell_volume                     4410.5(10)
_computing_cell_refinement       'Oxford Diffraion software, CrystAlis 1.171'
_computing_data_collection       'Oxford Diffraion software, CrystAlis 1.171'
_computing_data_reduction        'Oxford Diffraion software, CrystAlis 1.171'
_computing_molecular_graphics    'SHELXTL-NT V5.1, Bruker AXS 1999'
_computing_publication_material  'SHELXTL-NT V5.1, Bruker AXS 1999'
_computing_structure_refinement  'SHELXTL-NT V5.1, Bruker AXS 1999'
_computing_structure_solution    'SHELXTL-NT V5.1, Bruker AXS 1999'
_diffrn_ambient_temperature      100(1)
_diffrn_measured_fraction_theta_full 0.942
_diffrn_measured_fraction_theta_max 0.942
_diffrn_measurement_device_type  'Kuma KM4CCD kappa-axis diffractometer'
_diffrn_measurement_method       \w
_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  0.0583
_diffrn_reflns_av_sigmaI/netI    0.0339
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            29250
_diffrn_reflns_theta_full        28.47
_diffrn_reflns_theta_max         28.47
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.989
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.362
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1864
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.858
_refine_diff_density_min         -0.608
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.115
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         5268
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.115
_refine_ls_R_factor_all          0.0434
_refine_ls_R_factor_gt           0.0381
_refine_ls_shift/su_max          0.314
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+10.9577P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0747
_refine_ls_wR_factor_ref         0.0766
_reflns_number_gt                4927
_reflns_number_total             5268
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0503129rom20050301_122331_3.cif
_cod_data_source_block           for_complex_3
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4309269