Synthesis and characterisation of new titanium amino-alkoxides: precursors for the formation of TiO2 materials
Hollingsworth, Nathan; Kanna, Miki; Kociok-Köhn, Gabriele; Molloy, Kieran C.; Wongnawa, Sumpun; Dalton Transactions  (2008) 631–641; doi:10.1039/b712375b

data_7003113
_publ_section_title
;
 Synthesis and characterisation of new titanium amino-alkoxides:
 precursors for the formation of TiO2 materials
;
_journal_issue                   5
_journal_name_full               'Dalton Transactions'
_journal_page_first              631
_journal_page_last               641
_journal_paper_doi               10.1039/b712375b
_journal_year                    2008
_chemical_formula_moiety         'C28 H68 N4 O12 Ti4'
_chemical_formula_sum            'C28 H68 N4 O12 Ti4'
_chemical_formula_weight         844.46
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 117.830(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.8514(3)
_cell_length_b                   22.0293(8)
_cell_length_c                   10.8310(3)
_cell_measurement_reflns_used    21996
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.485
_cell_measurement_theta_min      2.910
_cell_volume                     2078.67(12)
_computing_cell_refinement       'HKL Scalepack (Otwinski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
;
DENZO-SCALEPACK Z. Otwinowski and W. Minor, "
Processing of X-ray Diffraction Data Collected in Oscillation Mode ",
Methods in Enzymology, Volume 276: Macromolecular Crystallography,
part A, p.307-326, 1997,C.W. Carter, Jr. & R. M. Sweet, Eds., Academic Press.
;
_computing_molecular_graphics
'ORTEP3 for Windows - Farrugia, L. J. J. Appl. Crystallogr. 1997, 30, 565'
_computing_publication_material
;
WinGX publication routines, Farrugia,
L. J., J. Appl. Crystallogr., 1999, 32, 837-838
;
_computing_structure_refinement
;
SHELXL97 -Program for Crystal Structure Analysis (Release 97-2).
Sheldrick, G.M., Instit\"ut f\"ur Anorganische Chemie der Universit\"at,
Tammanstrasse 4, D-3400 G\"ottingen, Germany, 1998
;
_computing_structure_solution
;
SIR97- Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C. ,
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
(1999) J. Appl. Cryst. 32, 115-119
;
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '208 2.0 degree images with \v 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  0.1501
_diffrn_reflns_av_sigmaI/netI    0.0764
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            22055
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         4.35
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.796
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.349
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.504
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.136
_refine_ls_extinction_coef       0.019(5)
_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   1.097
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3593
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.1111
_refine_ls_R_factor_gt           0.0844
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1216P)^2^+8.1901P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2169
_refine_ls_wR_factor_ref         0.2420
_reflns_number_gt                2710
_reflns_number_total             3593
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b712375b.txt
_cod_data_source_block           h05kcm24_Compound11
_cod_original_cell_volume        2078.67(11)
_cod_database_code               7003113