Synthesis and structures of bis-ligated zinc complexes supported by tridentate ketoimines that initiate l-lactide polymerization.
Gerling, Kimberly A.; Rezayee, Nomaan M.; Rheingold, Arnold L.; Green, David B.; Fritsch, Joseph M.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 16498–16508; doi:10.1039/c4dt01607f

data_7032699
_publ_section_title
;
 Synthesis and structures of bis-ligated zinc complexes supported by
 tridentate ketoimines that initiate l-lactide polymerization.
;
_journal_issue                   43
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16498
_journal_page_last               16508
_journal_paper_doi               10.1039/c4dt01607f
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C50 H38 N4 O2 Zn, 4(C H2 Cl2)'
_chemical_formula_sum            'C54 H46 Cl8 N4 O2 Zn'
_chemical_formula_weight         1131.92
_chemical_name_systematic
; 
 ? 
;
_chemical_properties_physical    Air-sensitive
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 105.9120(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.4261(19)
_cell_length_b                   18.3114(19)
_cell_length_c                   17.7719(19)
_cell_measurement_reflns_used    9964
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.22
_cell_measurement_theta_min      3.74
_cell_volume                     5766.6(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1026
_diffrn_reflns_av_sigmaI/netI    0.0663
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            38222
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         30.57
_diffrn_reflns_theta_min         3.62
_exptl_absorpt_coefficient_mu    0.838
_exptl_absorpt_correction_T_max  0.7872
_exptl_absorpt_correction_T_min  0.7018
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Bruker)'
_exptl_crystal_colour            orange-red
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_platon_squeeze_details
;
an unidentified solvent molecule was squeezed from final refinements
;
_refine_diff_density_max         0.949
_refine_diff_density_min         -1.097
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         8315
_refine_ls_number_restraints     120
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0572
_refine_ls_R_factor_gt           0.0445
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0698P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1246
_refine_ls_wR_factor_ref         0.1294
_reflns_number_gt                6383
_reflns_number_total             8315
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01607f2.cif
_cod_data_source_block           pep311m-squ
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 7032698--7032704.cif.
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7032699