[Ti<sub>8</sub>Zr<sub>2</sub>O<sub>12</sub>(COO)<sub>16</sub>] Cluster: An Ideal Inorganic Building Unit for Photoactive Metal-Organic Frameworks.
Yuan, Shuai; Qin, Jun-Sheng; Xu, Hai-Qun; Su, Jie; Rossi, Daniel; Chen, Yuanping; Zhang, Liangliang; Lollar, Christina; Wang, Qi; Jiang, Hai-Long; Son, Dong Hee; Xu, Hongyi; Huang, Zhehao; Zou, Xiaodong; Zhou, Hong-Cai; ACS central science 4 (2018) 105–111; doi:10.1021/acscentsci.7b00497

data_4516790
_publ_section_title
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 [Ti<sub>8</sub>Zr<sub>2</sub>O<sub>12</sub>(COO)<sub>16</sub>] Cluster:
 An Ideal Inorganic Building Unit for Photoactive Metal-Organic
 Frameworks.
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_journal_issue                   1
_journal_name_full               'ACS central science'
_journal_page_first              105
_journal_page_last               111
_journal_paper_doi               10.1021/acscentsci.7b00497
_journal_volume                  4
_journal_year                    2018
_chemical_formula_moiety         'C32 H48 O44 Ti8 Zr2, 4(C4 H6 N2)'
_chemical_formula_sum            'C48 H72 N8 O44 Ti8 Zr2'
_chemical_formula_weight         2030.77
_space_group_crystal_system      cubic
_space_group_IT_number           229
_space_group_name_Hall           '-I 4 2 3'
_space_group_name_H-M_alt        'I m -3 m'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-08-16
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5375)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            6
_cell_length_a                   24.260(4)
_cell_length_b                   24.260(4)
_cell_length_c                   24.260(4)
_cell_measurement_reflns_used    9561
_cell_measurement_temperature    100
_cell_measurement_theta_max      29.38
_cell_measurement_theta_min      2.37
_cell_volume                     14278(4)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0440
_diffrn_reflns_av_unetI/netI     0.0122
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            92448
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.727
_diffrn_reflns_theta_min         1.679
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.925
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.417
_exptl_crystal_description       block
_exptl_crystal_F_000             6144
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.321
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.141
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     86
_refine_ls_number_reflns         1969
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.141
_refine_ls_R_factor_all          0.0219
_refine_ls_R_factor_gt           0.0187
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0234P)^2^+12.8980P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0519
_refine_ls_wR_factor_ref         0.0535
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1787
_reflns_number_total             1969
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            oc7b00497_si_002.cif
_cod_data_source_block           '[Ti8Zr2O12(MeCOO)16]'
_cod_original_cell_volume        14279(7)
_cod_database_code               4516790
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.913
_shelx_estimated_absorpt_t_min   0.913
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.5 times of:
  All C(H,H,H) groups
2. Others
 Fixed Sof: H00A(0.5) H00B(0.5) H00C(0.5) H00G(0.5) H00H(0.5) H00I(0.5)
 H00D(0.5) H00E(0.5) H00F(0.5)
3.a Idealised Me refined as rotating group:
 C009(H00A,H00B,H00C), C00C(H00G,H00H,H00I), C00D(H00D,H00E,H00F)
;
_olex2_submission_special_instructions 'No special instructions were received'