Ti and Zr complexes bearing guanidine-phenolate ligands: coordination chemistry and polymerization studies
Flores-Romero, Víctor; LeBlanc, Jesse; Chen, Zichuan; Lavoie, Gino G.; RSC Advances 14 (2024) 25889–25899; doi:10.1039/D4RA05146G

data_7249226
_publ_section_title
;
 Ti and Zr complexes bearing guanidine-phenolate ligands: coordination
 chemistry and polymerization studies
;
_journal_issue                   35
_journal_name_full               'RSC Advances'
_journal_page_first              25889
_journal_page_last               25899
_journal_paper_doi               10.1039/D4RA05146G
_journal_volume                  14
_journal_year                    2024
_chemical_formula_moiety         'C28 H42 N6 O4 Zr'
_chemical_formula_sum            'C28 H42 N6 O4 Zr'
_chemical_formula_weight         617.89
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2023-02-24
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2024-04-02 deposited with the CCDC.	2024-08-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.246(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6548(4)
_cell_length_b                   15.7838(6)
_cell_length_c                   19.7193(7)
_cell_measurement_reflns_used    9973
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.34
_cell_measurement_theta_min      2.34
_cell_volume                     3005.0(2)
_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    'SHELXS-1997  (Sheldrick, 2008)'
_diffrn_ambient_temperature      173.00
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1255
_diffrn_reflns_av_unetI/netI     0.0549
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            94441
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.567
_diffrn_reflns_theta_min         2.109
_exptl_absorpt_coefficient_mu    0.408
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6936
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0775 before and 0.0690 after correction.
The Ratio of minimum to maximum transmission is 0.9303.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            green
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_description       shard
_exptl_crystal_F_000             1296
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.101
_refine_diff_density_min         -0.794
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         6938
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0976
_refine_ls_R_factor_gt           0.0580
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0122P)^2^+8.2958P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0979
_refine_ls_wR_factor_ref         0.1126
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4861
_reflns_number_total             6938
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ra05146g2.cif
_cod_data_source_block           vfr027_0m_a
_cod_database_code               7249226
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.960
_shelx_estimated_absorpt_t_min   0.854
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.9958(5)
 0.0042(5)
2. 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
3.a Ternary CH refined with riding coordinates:
 C23(H23), C26(H26)
3.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B), C13(H13A,H13B), C14(H14A,H14B)
3.c Aromatic/amide H refined with riding coordinates:
 C7(H7), C8(H8), C9(H9), C10(H10), C18(H18), C19(H19), C20(H20), C21(H21)
3.d Idealised Me refined as rotating group:
 C5(H5A,H5B,H5C), C4(H4A,H4B,H4C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C),
 C24(H24A,H24B,H24C), C25(H25A,H25B,H25C), C28(H28A,H28B,H28C), C27(H27A,H27B,
 H27C)
;
_shelx_res_checksum              5255
_olex2_submission_special_instructions 'No special instructions were received'