Actinide complexes with Wells-Dawson polyoxometalates (part 1): americium and curium.
Colliard, Ian; Deblonde, Gauthier J.-P.; Chemical communications (Cambridge, England) 62 (2026) 4018–4022; doi:10.1039/d5cc06999h

data_7135383
_publ_section_title
;
 Actinide complexes with Wells-Dawson polyoxometalates (part 1): americium
 and curium.
;
_journal_issue                   13
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4018
_journal_page_last               4022
_journal_paper_doi               10.1039/d5cc06999h
_journal_volume                  62
_journal_year                    2026
_chemical_formula_moiety         'C22 H19 Cl2 Cu2 N3 O3 Si'
_chemical_formula_sum            'C22 H19 Cl2 Cu2 N3 O3 Si'
_chemical_formula_weight         599.47
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
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_audit_block_doi                 10.5517/ccdc.csd.cc2qb306
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2025-11-30 deposited with the CCDC.	2026-01-14 downloaded from the CCDC.
;
_cell_angle_alpha                89.113(2)
_cell_angle_beta                 88.283(2)
_cell_angle_gamma                76.202(2)
_cell_formula_units_Z            4
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_cell_length_c                   17.4646(4)
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_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      26.32
_cell_measurement_theta_min      2.28
_cell_volume                     2385.72(11)
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0348
_diffrn_reflns_av_unetI/netI     0.0238
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            35772
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.999
_diffrn_reflns_theta_min         2.277
_exptl_absorpt_coefficient_mu    2.087
_exptl_absorpt_correction_T_max  0.7740
_exptl_absorpt_correction_T_min  0.6431
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   XShape
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.669
_exptl_crystal_description       piece
_exptl_crystal_F_000             1208
_exptl_crystal_size_max          0.380
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     605
_refine_ls_number_reflns         9385
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0367
_refine_ls_R_factor_gt           0.0277
_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^)+(0.0331P)^2^+1.3396P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0657
_refine_ls_wR_factor_ref         0.0689
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7895
_reflns_number_total             9385
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc06999h2.cif
_cod_data_source_block           samu-010_01
_cod_database_code               7135383
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.504
_shelx_estimated_absorpt_t_max   0.705
_shelx_res_checksum              95889
_shelx_hkl_checksum              54744