Mononuclear Titanium(IV)‒Citrate Complexes from Aqueous Solutions: pH-Specific Synthesis and Structural and Spectroscopic Studies in Relevance to Aqueous Titanium(IV)‒Citrate Speciation
Kefalas, E. T.; Panagiotidis, P.; Raptopoulou, C. P.; Terzis, A.; Mavromoustakos, T.; Salifoglou, A.; Inorganic Chemistry 44 (2005) 2596–2605; doi:10.1021/ic049276o

data_4301039
_publ_section_title
;
 Mononuclear Titanium(IV)--Citrate Complexes from Aqueous Solutions:
 pH-Specific Synthesis and Structural and Spectroscopic Studies in
 Relevance to Aqueous Titanium(IV)--Citrate Speciation
;
_journal_coden_ASTM              INOCAJ
_journal_issue                   8
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2596
_journal_page_last               2605
_journal_paper_doi               10.1021/ic049276o
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C18 H44 N3 Na3 O30 Ti'
_chemical_formula_weight         899.43
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                83.08(2)
_cell_angle_beta                 81.43(2)
_cell_angle_gamma                67.45(2)
_cell_formula_units_Z            2
_cell_length_a                   12.437(5)
_cell_length_b                   12.440(5)
_cell_length_c                   12.041(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298
_cell_measurement_theta_max      27
_cell_measurement_theta_min      11
_cell_volume                     1697.2(12)
_computing_molecular_graphics    ORTEP
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      298
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'P21 Nicolet upgraded by Crystal Logic'
_diffrn_measurement_method       \q/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.0552
_diffrn_reflns_av_sigmaI/netI    0.0469
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4722
_diffrn_reflns_theta_full        56.67
_diffrn_reflns_theta_max         56.67
_diffrn_reflns_theta_min         3.86
_diffrn_standards_decay_%        1.9
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    3.607
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.760
_exptl_crystal_density_meas      1.77
_exptl_crystal_density_method    'floating method'
_exptl_crystal_description       parallelipiped
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.651
_refine_diff_density_min         -1.062
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     560
_refine_ls_number_reflns         4486
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0750
_refine_ls_R_factor_gt           0.0636
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1246P)^2^+4.2511P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1762
_refine_ls_wR_factor_ref         0.1930
_reflns_number_gt                3771
_reflns_number_total             4486
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic049276osi20040706_031506_2.cif
_cod_data_source_block           salti692
_cod_original_cell_volume        1697(2)
_cod_database_code               4301039