Synthesis and structures of mono- and di-nuclear aluminium and zinc complexes bearing α-diimine and related ligands, and their use in the ring opening polymerization of cyclic esters.
Xiao, Lin; Zhao, Yanxia; Qiao, Sijie; Sun, Ziyue; Santoro, Orlando; Redshaw, Carl; Dalton transactions (Cambridge, England : 2003) 49 (2020) 1456–1472; doi:10.1039/c9dt04332b

data_7703075
_publ_section_title
;
 Synthesis and structures of mono- and di-nuclear aluminium and zinc
 complexes bearing \a-diimine and related ligands, and their use in the
 ring opening polymerization of cyclic esters.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1456
_journal_page_last               1472
_journal_paper_doi               10.1039/c9dt04332b
_journal_volume                  49
_journal_year                    2020
_chemical_formula_sum            'C54 H83 N3 O3 Zn3'
_chemical_formula_weight         1018.34
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-10-04 deposited with the CCDC.	2019-12-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_c                   13.3344(6)
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_cell_measurement_temperature    150(2)
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_cell_measurement_theta_min      2.46
_cell_volume                     6002.8(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART APEX II'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 'fine-focus sealed tube'
_diffrn_measured_fraction_theta_full 0.994
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_diffrn_measurement_device_type  'Bruker APEX II area detector'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_av_unetI/netI     0.0596
_diffrn_reflns_Laue_measured_fraction_full 0.994
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_diffrn_reflns_limit_l_max       16
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_diffrn_reflns_point_group_measured_fraction_full 0.942
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.389
_diffrn_reflns_theta_min         2.459
_exptl_absorpt_coefficient_mu    1.227
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_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
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_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
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_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
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_platon_squeeze_details
;
;
_refine_diff_density_max         1.183
_refine_diff_density_min         -0.779
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_refine_ls_abs_structure_details
;
 Flack x determined using 3569 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.006(6)
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
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_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0527
_refine_ls_R_factor_gt           0.0399
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0200P)^2^+3.4146P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0749
_refine_ls_wR_factor_ref         0.0796
_reflns_Friedel_coverage         0.798
_reflns_Friedel_fraction_full    0.884
_reflns_Friedel_fraction_max     0.870
_reflns_number_gt                9673
_reflns_number_total             11494
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt04332b2.cif
_cod_data_source_block           8
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7703070--7703079.cif.
;
_cod_database_code               7703075
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.710
_shelx_estimated_absorpt_t_max   0.791
_shelx_res_checksum              68730