Organotitanoxanes with Unique Structure among Transition-Element Organometallic Oxide Derivatives
Olga Buitrago; Marta E. G. Mosquera; Gerardo Jiménez; Tomás Cuenca; Inorganic Chemistry 47 (2008) 3940–3942; doi:10.1021/ic8003646

data_4305111
_publ_contact_author
;      Marta E. G. Mosquera
       Departamento de Qu\'imica Inorg\'anica
       Facultad de Farmacia
       Universidad de Alcal\'a
       Campus Universitario
       28871 Alcal\'a de Henares
       Spain
;
_publ_contact_author_email       martaeg.mosquera@uah.es
_publ_contact_author_fax         '0034 91 8854683'
_publ_contact_author_phone       '0034 91 8854779'
_publ_section_title
;
Organotitanoxanes with Unique Structure among Transition-Element
Organometallic Oxide Derivatives
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3940
_journal_page_last               3942
_journal_paper_doi               10.1021/ic8003646
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C71 H120 O12 Si6 Ti6'
_chemical_formula_weight         1621.61
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 104.140(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.384(2)
_cell_length_b                   14.826(2)
_cell_length_c                   18.940(3)
_cell_measurement_reflns_used    180
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      21.815
_cell_measurement_theta_min      3.369
_cell_volume                     4189.0(10)
_computing_cell_refinement
'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0684
_diffrn_reflns_av_sigmaI/netI    0.0611
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            93752
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.53
_exptl_absorpt_coefficient_mu    0.683
_exptl_absorpt_correction_T_max  0.847
_exptl_absorpt_correction_T_min  0.756
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.286
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1716
_exptl_crystal_size_max          0.347
_exptl_crystal_size_mid          0.329
_exptl_crystal_size_min          0.262
_refine_diff_density_max         0.539
_refine_diff_density_min         -0.521
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     430
_refine_ls_number_reflns         9600
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0904
_refine_ls_R_factor_gt           0.0496
_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^)+(0.0686P)^2^+5.7465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1253
_refine_ls_wR_factor_ref         0.1460
_reflns_number_gt                6520
_reflns_number_total             9600
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic8003646-file003_1.cif
_cod_data_source_block           5
_cod_original_cell_volume        4189.1(11)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4305111