Cationic zinc complexes: a new class of catalyst for living lactide polymerization at ambient temperature.
Wheaton, Craig A.; Hayes, Paul G.; Chemical communications (Cambridge, England) 46 (2010) 8404–8406; doi:10.1039/c0cc03463k

data_7112948
_publ_section_title
;
 Cationic zinc complexes: a new class of catalyst for living lactide
 polymerization at ambient temperature.
;
_journal_issue                   44
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              8404
_journal_page_last               8406
_journal_paper_doi               10.1039/c0cc03463k
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C79 H71 B N2 O P2 Zn'
_chemical_formula_weight         1202.50
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                80.235(8)
_cell_angle_beta                 82.751(8)
_cell_angle_gamma                80.160(8)
_cell_formula_units_Z            2
_cell_length_a                   9.878(7)
_cell_length_b                   17.426(11)
_cell_length_c                   21.932(14)
_cell_measurement_reflns_used    9988
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      56.387
_cell_measurement_theta_min      4.437
_cell_volume                     3647(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0270
_diffrn_reflns_av_sigmaI/netI    0.0290
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            44021
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.58
_exptl_absorpt_coefficient_mu    0.423
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6589
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.095
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.14
_platon_squeeze_details
;
;
_refine_diff_density_max         0.536
_refine_diff_density_min         -0.525
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     927
_refine_ls_number_reflns         12848
_refine_ls_number_restraints     252
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0621
_refine_ls_R_factor_gt           0.0507
_refine_ls_shift/su_max          0.044
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0451P)^2^+4.5681P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1231
_refine_ls_wR_factor_ref         0.1284
_reflns_number_gt                10448
_reflns_number_total             12848
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc03463k.txt
_cod_data_source_block           2b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/usr/data/users/saulius/automatic-downloads/retrospective/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7112948