Aluminium nanorings: configuration deformation and structural transformation.
Geng, Lin; Li, Qiao-Hong; Wang, San-Tai; Liu, Ya-Jie; Fang, Wei-Hui; Zhang, Jian; Chemical communications (Cambridge, England) 57 (2021) 2085–2088; doi:10.1039/d0cc07513b

data_7127842
_publ_section_title
;
 Aluminium nanorings: configuration deformation and structural
 transformation.
;
_journal_issue                   16
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2085
_journal_page_last               2088
_journal_paper_doi               10.1039/d0cc07513b
_journal_volume                  57
_journal_year                    2021
_chemical_formula_moiety         'C52 H84 Al10 F2 O48'
_chemical_formula_sum            'C52 H84 Al10 F0.12 O50'
_chemical_formula_weight         1781.36
_space_group_crystal_system      orthorhombic
_space_group_IT_number           70
_space_group_name_Hall           '-F 2uv 2vw'
_space_group_name_H-M_alt        'F d d d :2'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2021-01-20
_audit_creation_method
;
Olex2 1.3
(compiled 2020.06.28 svn.raecde09e for OlexSys, GUI svn.r6132)
;
_audit_update_record
;
2021-01-20 deposited with the CCDC.	2021-01-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   20.7362(5)
_cell_length_b                   25.0136(5)
_cell_length_c                   38.8351(13)
_cell_measurement_reflns_used    29305
_cell_measurement_temperature    297.27(10)
_cell_measurement_theta_max      60.5790
_cell_measurement_theta_min      2.5650
_cell_volume                     20143.3(9)
_computing_data_collection       'CrysAlisPro 1.171.39.46c (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.59a (Rigaku OD, 2019)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'ROD, Synergy Custom system, HyPix'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.3405
_diffrn_reflns_av_R_equivalents  0.0401
_diffrn_reflns_av_unetI/netI     0.0151
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       48
_diffrn_reflns_limit_l_min       -48
_diffrn_reflns_number            47217
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        53.543
_diffrn_reflns_theta_max         56.898
_diffrn_reflns_theta_min         2.602
_exptl_absorpt_coefficient_mu    1.075
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.84462
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.175
_exptl_crystal_description       block
_exptl_crystal_F_000             7417
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.390
_refine_diff_density_min         -0.275
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     260
_refine_ls_number_reflns         5137
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.153
_refine_ls_R_factor_all          0.0384
_refine_ls_R_factor_gt           0.0358
_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^)+(0.0683P)^2^+16.9743P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1097
_refine_ls_wR_factor_ref         0.1121
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4666
_reflns_number_total             5137
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc07513b2.cif
_cod_data_source_block           AlOC-37
_cod_depositor_comments
'Adding full bibliography for 7127841--7127847.cif.'
_cod_original_sg_symbol_H-M      'F d d d'
_cod_database_code               7127842
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.900
_shelx_estimated_absorpt_t_min   0.520
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C12) \\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(C13) \\sim Ueq: with sigma of 0.001 and sigma for terminal atoms of 0.002
3.a Ternary CH refined with riding coordinates:
 C5(H5)
3.b Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B)
3.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C),
 C12(H12A,H12B,H12C), C13(H13A,H13B,H13C)
;
_shelx_res_checksum              73384
_shelx_fab_checksum              66118
_platon_squeeze_void_probe_radius 1.20
_olex2_submission_special_instructions 'No special instructions were received'