Soluble, reactive and stable - unique aluminosilicate ligands and a heterobimetallic derivative [LAl(SLi)(micro-O)Si(OLi.2thf)(OtBu)2]2.
Jancik, Vojtech; Rascón-Cruz, Fernando; Cea-Olivares, Raymundo; Toscano, Rubén A; Chemical communications (Cambridge, England)  (2007) 4528–4530; doi:10.1039/b707895a

data_7102245
_publ_section_title
;
 Soluble, reactive and stable - unique aluminosilicate ligands and a
 heterobimetallic derivative [LAl(SLi)(micro-O)Si(OLi.2thf)(OtBu)2]2.
;
_journal_issue                   43
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              4528
_journal_page_last               4530
_journal_paper_doi               10.1039/b707895a
_journal_year                    2007
_chemical_formula_moiety         'C37 H61 Al N2 O4 S Si, 1/3(C6 H14)'
_chemical_formula_sum            'C39 H65.67 Al N2 O4 S Si'
_chemical_formula_weight         713.73
_chemical_name_systematic
;
?
;
_space_group_IT_number           148
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   31.536(5)
_cell_length_b                   31.536(5)
_cell_length_c                   22.246(4)
_cell_measurement_reflns_used    6189
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.73
_cell_measurement_theta_min      2.17
_cell_volume                     19160(6)
_computing_cell_refinement       'Bruker AXS SAINT (v 7.01A, Bruker 2003)'
_computing_data_collection       'SMART V 5.625 (Bruker, 1999)'
_computing_data_reduction        'Bruker AXS SAINT (v 7.01A, Bruker 2003)'
_computing_molecular_graphics    'Bruker AXS SHELXTL (v 6.12)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 0.661
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker Smart Apex CCD diffractometer'
_diffrn_measurement_method       'omega scan'
_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  0.0859
_diffrn_reflns_av_sigmaI/netI    0.0682
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            34889
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.162
_exptl_absorpt_correction_T_max  0.9765
_exptl_absorpt_correction_T_min  0.9598
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, Sheldrick 1996'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.113
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             6996
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     636
_refine_ls_number_reflns         7499
_refine_ls_number_restraints     479
_refine_ls_restrained_S_all      0.988
_refine_ls_R_factor_all          0.0853
_refine_ls_R_factor_gt           0.0575
_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^)+(0.0565P)^2^+27.3971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1251
_refine_ls_wR_factor_ref         0.1388
_reflns_number_gt                5435
_reflns_number_total             7499
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b707895a.txt
_cod_data_source_block           Compound1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
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_Hall     -R3
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               7102245