Zinc complexes of fluorous alkoxide-imino ligands: Synthesis, structure, and use in ring-opening polymerization of lactide and β-butyrolactone
Grunova, Ekaterina; Roisnel, Thierry; Carpentier, Jean-François; Dalton Transactions  (2009) 9010–9019; doi:10.1039/b902087j

data_7002553
_publ_section_title
;
 Zinc complexes of fluorous alkoxide-imino ligands: Synthesis,
 structure, and use in ring-opening polymerization of lactide and
 \b-butyrolactone
;
_journal_issue                   41
_journal_name_full               'Dalton Transactions'
_journal_page_first              9010
_journal_page_last               9019
_journal_paper_doi               10.1039/b902087j
_journal_year                    2009
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C40 H52 F12 N4 O2 Zn2'
_chemical_formula_sum            'C40 H52 F12 N4 O2 Zn2'
_chemical_formula_weight         979.6
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2007-11-07T10:07:45-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 109.417(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.3834(16)
_cell_length_b                   12.9413(15)
_cell_length_c                   14.1336(17)
_cell_measurement_reflns_used    5864
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.33
_cell_measurement_theta_min      3.06
_cell_measurement_wavelength     0.71073
_cell_volume                     2136.2(5)
_computing_cell_refinement       'Bruker SMART, 2006'
_computing_data_collection       'Bruker SMART, 2006'
_computing_data_reduction        'Bruker SAINT, 2006'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0484
_diffrn_reflns_av_unetI/netI     0.0452
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            17922
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    1.215
_exptl_absorpt_correction_T_max  0.953
_exptl_absorpt_correction_T_min  0.762
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.523
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.624
_refine_diff_density_min         -0.769
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     273
_refine_ls_number_reflns         4889
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0558
_refine_ls_R_factor_gt           0.035
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0441P)^2^+1.0412P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0837
_refine_ls_wR_factor_ref         0.0943
_reflns_number_gt                3754
_reflns_number_total             4889
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b902087j.txt
_cod_data_source_block           7
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               7002553