Silver cluster-assembled materials for label-free DNA detection.
Das, Saikat; Sekine, Taishu; Mabuchi, Haruna; Hossain, Sakiat; Das, Subhabrata; Aoki, Shun; Takahashi, Shuntaro; Negishi, Yuichi; Chemical communications (Cambridge, England) 59 (2023) 4000–4003; doi:10.1039/d2cc06933d

data_7131337
_publ_section_title
;
 Silver cluster-assembled materials for label-free DNA detection.
;
_journal_issue                   27
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4000
_journal_page_last               4003
_journal_paper_doi               10.1039/d2cc06933d
_journal_volume                  59
_journal_year                    2023
_chemical_formula_moiety         'C96 H90 Ag12 F18 N6 O12 S6'
_chemical_formula_sum            'C96 H90 Ag12 F18 N6 O12 S6'
_chemical_formula_weight         3348.53
_chemical_name_systematic        'Cluster 2 Ag12bpeb'
_space_group_crystal_system      trigonal
_space_group_IT_number           166
_space_group_name_Hall           '-R 3 2"'
_space_group_name_H-M_alt        'R -3 m :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-10-24
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2022-12-20 deposited with the CCDC.	2023-02-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   28.808(2)
_cell_length_b                   28.808(2)
_cell_length_c                   11.3966(14)
_cell_measurement_reflns_used    2167
_cell_measurement_temperature    100.15
_cell_measurement_theta_max      23.77
_cell_measurement_theta_min      2.42
_cell_volume                     8190.9(13)
_computing_cell_refinement       'SAINT V8.40A (Bruker, 2019)'
_computing_data_reduction        'SAINT V8.40A (Bruker, 2019)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.15
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART APEX2 area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1184
_diffrn_reflns_av_unetI/netI     0.0709
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            9122
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        23.840
_diffrn_reflns_theta_max         23.840
_diffrn_reflns_theta_min         1.965
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_type              'Incoatec I\ms'
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.304
_exptl_absorpt_correction_T_max  0.7450
_exptl_absorpt_correction_T_min  0.3772
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1658 before and 0.0855 after correction.
The Ratio of minimum to maximum transmission is 0.5063.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.037
_exptl_crystal_description       rhombohedral
_exptl_crystal_F_000             4878
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.6
_refine_diff_density_max         1.904
_refine_diff_density_min         -1.754
_refine_diff_density_rms         0.239
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     129
_refine_ls_number_reflns         1508
_refine_ls_number_restraints     90
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0615
_refine_ls_R_factor_gt           0.0502
_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^)+(0.0789P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1248
_refine_ls_wR_factor_ref         0.1321
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1243
_reflns_number_total             1508
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cc06933d2.cif
_cod_data_source_block           Cluster2
_cod_depositor_comments
'Adding full bibliography for 7131336--7131337.cif.'
_cod_original_cell_volume        8190.8(16)
_cod_original_sg_symbol_H-M      'R -3 m'
_cod_database_code               7131337
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.339
_shelx_estimated_absorpt_t_min   0.339
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
C4: within 1.7A with sigma of 0.04 and sigma for terminal atoms of 0.08 within
1.7A
C1 \\sim C2 \\sim C3 \\sim C5 \\sim C6 \\sim C7 \\sim C8 \\sim C9 \\sim C10
\\sim C11 \\sim C12: within 1.7A with sigma of 0.04 and sigma for terminal
atoms of 0.08 within 1.7A
3. Rigid body (RIGU) restrains
 C4
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
 C1, C2, C3, C5, C6, C7, C8, C9, C10, C11, C12
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
4. Others
 Fixed Sof: H1A(0.5) H1B(0.5) H1C(0.5)
5.a Aromatic/amide H refined with riding coordinates:
 C8(H8), C7(H7), C2(H2)
5.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C12(H12A,H12B,H12C)
;
_shelx_res_checksum              72798
_shelx_hkl_checksum              43667
_olex2_submission_special_instructions 'No special instructions were received'