Homo- and heteroalumoxane silicates
García-Ríos, Jessica; Hernández-Campos, René Francisco; Rascón-Cruz, Fernando; Moreno-Martínez, Víctor Augusto; Huerta-Lavorie, Raúl; Velázquez-Carmona, Miguel-Ángel; Cea-Olivares, Raymundo; Martínez-Otero, Diego; Jancik, Vojtech; RSC Advances 5 (2015) 99722–; doi:10.1039/C5RA18481A

data_7235987
_publ_section_title
;
 Homo- and heteroalumoxane silicates
;
_journal_issue                   121
_journal_name_full               'RSC Advances'
_journal_page_first              99722
_journal_paper_doi               10.1039/C5RA18481A
_journal_volume                  5
_journal_year                    2015
_chemical_formula_moiety         'C74 H120 Al2 Li2 N4 O10 Si2, 3(C4 H8 O)'
_chemical_formula_sum            'C86 H144 Al2 Li2 N4 O13 Si2'
_chemical_formula_weight         1566.06
_chemical_properties_physical    'Air-sensitive, Moisture-sensitive'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-10-25 deposited with the CCDC.
2015-11-12 downloaded from the CCDC.
;
_cell_angle_alpha                66.119(1)
_cell_angle_beta                 68.027(1)
_cell_angle_gamma                87.277(1)
_cell_formula_units_Z            1
_cell_length_a                   12.0415(5)
_cell_length_b                   14.6863(7)
_cell_length_c                   15.6828(7)
_cell_measurement_reflns_used    6820
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.91
_cell_measurement_theta_min      2.53
_cell_volume                     2334.03(18)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0391
_diffrn_reflns_av_unetI/netI     0.0322
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            33393
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.075
_diffrn_reflns_theta_max         25.075
_diffrn_reflns_theta_min         1.528
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_T_max  0.9941
_exptl_absorpt_correction_T_min  0.9811
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2009/1, Sheldrick'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.114
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             852
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: THF'
_exptl_crystal_size_max          0.168
_exptl_crystal_size_mid          0.106
_exptl_crystal_size_min          0.052
_refine_diff_density_max         0.627
_refine_diff_density_min         -0.408
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     658
_refine_ls_number_reflns         8301
_refine_ls_number_restraints     597
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0513
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+1.4007P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1370
_refine_ls_wR_factor_ref         0.1489
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6490
_reflns_number_total             8301
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ra18481a2.cif
_cod_data_source_block           Comp2
_cod_database_code               7235987
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.981
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              47758