A new zinc‒zinc-bonded compound with a dianionic α-diimine ligand: synthesis and structure of [Na(THF)~2~]~2~·[LZn‒ZnL] (L = [(2,6-^i^Pr~2~C~6~H~3~)N(Me)C]~2~^2-^)
Yang, Xiao-Juan; Yu, Jie; Liu, Yanyan; Xie, Yaoming; Schaefer, Henry F.; Liang, Yongmin; Wu, Biao; Chemical Communications (Cambridge, United Kingdom)  (2007) 2363–2365; doi:10.1039/b703200e

data_7101984
_publ_section_title
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 A new zinc--zinc-bonded compound with a dianionic \a-diimine ligand:
 synthesis and structure of [Na(THF)~2~]~2~&#x00B7;[LZn--ZnL] (L =
 [(2,6-^i^Pr~2~C~6~H~3~)N(Me)C]~2~^2-^)
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_journal_coden_ASTM              CHCOFS
_journal_issue                   23
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
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_journal_page_first              2363
_journal_page_last               2365
_journal_paper_doi               10.1039/b703200e
_journal_year                    2007
_chemical_formula_sum            'C72 H112 N4 Na2 O4 Zn2'
_chemical_formula_weight         1274.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 90.3320(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.0184(2)
_cell_length_b                   20.3636(4)
_cell_length_c                   13.8961(3)
_cell_measurement_temperature    293(2)
_cell_volume                     3683.81(12)
_computing_cell_refinement       'Bruker SMART APEX II'
_computing_data_collection       'Bruker SMART APEX II'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_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  0.0343
_diffrn_reflns_av_sigmaI/netI    0.0460
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            22949
_diffrn_reflns_theta_full        28.50
_diffrn_reflns_theta_max         28.50
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.709
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7650
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.149
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Cubic
_exptl_crystal_F_000             1372
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.47
_exptl_crystal_size_min          0.45
_refine_diff_density_max         0.834
_refine_diff_density_min         -0.380
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         8772
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0843
_refine_ls_R_factor_gt           0.0515
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0866P)^2^+1.0071P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1392
_refine_ls_wR_factor_ref         0.1612
_reflns_number_gt                5871
_reflns_number_total             8772
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b703200e.txt
_cod_data_source_block           Zn2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_hydrogen_treatment' value 'Constr' changed to
'constr' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7101984