Make or break: Mg(ii)- and Zn(ii)-catalen complexes for PLA production and recycling of commodity polyesters
Payne, Jack; McKeown, Paul; Driscoll, Oliver; Kociok-Köhn, Gabriele; Emanuelsson, Emma A. C.; Jones, Matthew D.; Polymer Chemistry 12 (2021) 1086–1096; doi:10.1039/D0PY01519A

data_1560092
_publ_section_title
;
 Make or break: Mg(ii)- and Zn(ii)-catalen complexes for PLA production
 and recycling of commodity polyesters
;
_journal_issue                   8
_journal_name_full               'Polymer Chemistry'
_journal_page_first              1086
_journal_page_last               1096
_journal_paper_doi               10.1039/D0PY01519A
_journal_volume                  12
_journal_year                    2021
_chemical_formula_sum            'C27 H36 Cl2 Mg2 N2 O2'
_chemical_formula_weight         540.10
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2020-10-29 deposited with the CCDC.	2020-12-26 downloaded from the CCDC.
;
_cell_angle_alpha                112.876(9)
_cell_angle_beta                 100.644(8)
_cell_angle_gamma                93.112(8)
_cell_formula_units_Z            2
_cell_length_a                   10.8720(12)
_cell_length_b                   11.0298(10)
_cell_length_c                   13.0224(12)
_cell_measurement_reflns_used    1130
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      64.1370
_cell_measurement_theta_min      3.7730
_cell_volume                     1400.2(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics
'ORTEP3 for Windows - Farrugia, L. J. J. Appl. Crystallogr. 1997, 30, 565'
_computing_publication_material
;
 'WinGX publication routines, Farrugia, 
 L. J., J. Appl. Crystallogr., 1999, 32, 837-838
;
_computing_structure_refinement
;
 SHELXL-2014/8 (Sheldrick, 2014)
 Sheldrick GM (2008) Acta Crystallogr A64:112-122 and 
 C. B. H\"ubschle, G. M. Sheldrick and B. Dittrich
 ShelXle: a Qt graphical user interface for SHELXL
 J. Appl. Cryst., 44, (2011) 1281-1284.
;
_computing_structure_solution
; 
 SHELXT
 Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
;
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, EosS2'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0528
_diffrn_reflns_av_unetI/netI     0.0971
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.957
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            8571
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.957
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         71.978
_diffrn_reflns_theta_min         3.780
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    2.729
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79025
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.67a (Rigaku Oxford Diffraction, 2019)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_description       block
_exptl_crystal_F_000             572
_exptl_crystal_size_max          0.050
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.406
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         5278
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1275
_refine_ls_R_factor_gt           0.0768
_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^)+(0.0741P)^2^+0.8605P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1801
_refine_ls_wR_factor_ref         0.2117
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3144
_reflns_number_total             5278
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0py01519a2.cif
_cod_data_source_block           Mg_tetramer
_cod_depositor_comments
'Adding full bibliography for 1560087--1560093.cif.'
_cod_database_code               1560092
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.876
_shelx_estimated_absorpt_t_max   0.876
_oxdiff_exptl_absorpt_empirical_full_min 0.772
_oxdiff_exptl_absorpt_empirical_full_max 1.613
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              40172