Synthesis, structures and ring-opening polymerization studies of new zinc chloride and amide complexes supported by amidinate heteroscorpionate ligands
Sánchez-Barba, Luis F.; Alonso-Moreno, Carlos; Garcés, Andrés; Fajardo, Mariano; Fernández-Baeza, Juan; Otero, Antonio; Lara-Sánchez, Agustín; Rodríguez, Ana M.; López-Solera, Isabel; Dalton Transactions  (2009) 8054–8062; doi:10.1039/b910048b

data_7030505
_publ_section_title
;
 Synthesis, structures and ring-opening polymerization studies of new
 zinc chloride and amide complexes supported by amidinate
 heteroscorpionate ligands
;
_journal_coden_ASTM              DTARAF
_journal_issue                   38
_journal_name_full               'Dalton Transactions'
_journal_page_first              8054
_journal_page_last               8062
_journal_paper_doi               10.1039/b910048b
_journal_year                    2009
_chemical_formula_sum            'C18 H29 Cl N6 Zn'
_chemical_formula_weight         430.29
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 113.525(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.649(5)
_cell_length_b                   13.089(7)
_cell_length_c                   10.018(6)
_cell_measurement_reflns_used    215
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      16.584
_cell_measurement_theta_min      2.708
_cell_volume                     1039.8(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT, SADABS, XPREP'
_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      180(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega and phi 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  0.0916
_diffrn_reflns_av_sigmaI/netI    0.2987
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            4368
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         2.64
_exptl_absorpt_coefficient_mu    1.323
_exptl_absorpt_correction_T_max  0.9131
_exptl_absorpt_correction_T_min  0.6692
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             452
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.587
_refine_diff_density_min         -0.684
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.852
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     135
_refine_ls_number_reflns         1988
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.852
_refine_ls_R_factor_all          0.1513
_refine_ls_R_factor_gt           0.0699
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1320
_refine_ls_wR_factor_ref         0.1631
_reflns_number_gt                692
_reflns_number_total             1988
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7002339
_cod_data_source_file            b910048b.txt
_cod_data_source_block           2
_cod_original_cell_volume        1039.9(10)
_cod_original_sg_symbol_H-M      P21/m
_cod_database_code               7030505