The photo-isomerization of the cyclononatetraenyl ligand and related rare earth complexes.
Pedussaut, Lucie; Mahieu, Nolwenn; Chartier, Camille; Rajeshkumar, Thayalan; Tricoire, Maxime; Douair, Iskander; Casaretto, Nicolas; Maron, Laurent; Danoun, Grégory; Nocton, Grégory; Chemical science 15 (2024) 19273–19282; doi:10.1039/d4sc04767b

data_1572895
_publ_section_title
;
 The photo-isomerization of the cyclononatetraenyl ligand and related rare
 earth complexes.
;
_journal_issue                   46
_journal_name_full               'Chemical science'
_journal_page_first              19273
_journal_page_last               19282
_journal_paper_doi               10.1039/d4sc04767b
_journal_volume                  15
_journal_year                    2024
_chemical_formula_moiety         'C17 H17 Sm'
_chemical_formula_sum            'C17 H17 Sm'
_chemical_formula_weight         371.65
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-04-19
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2024-07-13 deposited with the CCDC.	2024-10-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.8943(7)
_cell_length_b                   12.9414(6)
_cell_length_c                   8.8036(6)
_cell_measurement_reflns_used    1680
_cell_measurement_temperature    150
_cell_measurement_theta_max      29.92
_cell_measurement_theta_min      2.80
_cell_volume                     1355.13(14)
_computing_cell_refinement
;
X-Area Recipe 1.37.0.0 (STOE, 2021)
;
_computing_data_collection
;
X-Area Pilatus3_SV 1.31.186.0 (STOE, 2022)
;
_computing_data_reduction
;
X-Area Integrate 2.5.3.0 (STOE, 2021)
X-Area X-Red 2.3.0.0 (STOE, 2021) 
;
_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    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      150.01
_diffrn_detector_area_resol_mean 13.33
_diffrn_measured_fraction_theta_full 0.925
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_details
;
 425 frames, detector distance = 60 mm
;
_diffrn_measurement_device       'Eulerian 4-circle diffractometer'
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_measurement_method       'rotation method, \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0533
_diffrn_reflns_av_unetI/netI     0.0406
_diffrn_reflns_Laue_measured_fraction_full 0.925
_diffrn_reflns_Laue_measured_fraction_max 0.930
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7609
_diffrn_reflns_point_group_measured_fraction_full 0.925
_diffrn_reflns_point_group_measured_fraction_max 0.930
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.100
_diffrn_reflns_theta_min         2.798
_exptl_absorpt_coefficient_mu    4.311
_exptl_absorpt_correction_T_max  0.8144
_exptl_absorpt_correction_T_min  0.3371
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
STOE X-Red32, absorption correction by Gaussian integration, analogous to
P. Coppens, "The Evaluation of Absorption and Extinction in Single-Crystal
Structure Analysis", published in
F. R. Ahmed (Editor), "Crystallographic Computing",
Munksgaard, Copenhagen (1970), 255 - 270
;
_exptl_crystal_colour            brown
_exptl_crystal_colour_primary    brown
_exptl_crystal_density_diffrn    1.822
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             724
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.287
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.928
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.141
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.958
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1454
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0561
_refine_ls_R_factor_gt           0.0323
_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^)+(0.0445P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0697
_refine_ls_wR_factor_ref         0.0763
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1042
_reflns_number_total             1454
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc04767b3.cif
_cod_data_source_block           2-Sm-trans
_cod_depositor_comments
'Adding full bibliography for 1572887--1572904.cif.'
_cod_database_code               1572895
_shelx_shelxl_version_number     2018/3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2. Uiso/Uaniso restraints and constraints
C1A \\sim C1B \\sim C2 \\sim C3 \\sim C4 \\sim C5: within 2A with sigma of 0.01
and sigma for terminal atoms of 0 within 2A
3. Others
 Sof(H2B)=1-FVAR(1)
 Sof(C1B)=Sof(H1B)=0.5*(1-FVAR(2))
 Sof(C1A)=Sof(H1A)=0.5*FVAR(2)
 Sof(H2A)=FVAR(1)
4.a Aromatic/amide H refined with riding coordinates:
 C7(H7), C4(H4), C9(H9), C8(H8), C2(H2A), C2(H2B), C3(H3), C5(H5), C1A(H1A),
 C1B(H1B), C6(H6)
;
_shelx_res_checksum              33590
_olex2_submission_special_instructions 'No special instructions were received'