π Back-Bonding in Dibenzyl-β-diketiminato Copper Olefin Complexes
Oguadinma, Paul O.; Schaper, Frank; Organometallics 28 (2009) 6721–; doi:10.1021/om900840f

data_4070471
_publ_section_title
;
 \p Back-Bonding in Dibenzyl-\b-diketiminato Copper Olefin Complexes
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6721
_journal_paper_doi               10.1021/om900840f
_journal_volume                  28
_journal_year                    2009
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_moiety         'C52 H52 Cu2 N4'
_chemical_formula_sum            'C52 H52 Cu2 N4'
_chemical_formula_weight         860.06
_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                93.520(6)
_cell_angle_beta                 98.623(6)
_cell_angle_gamma                105.864(5)
_cell_formula_units_Z            4
_cell_length_a                   11.317(2)
_cell_length_b                   11.331(2)
_cell_length_c                   36.015(7)
_cell_measurement_reflns_used    8413
_cell_measurement_temperature    150
_cell_measurement_theta_max      65.33
_cell_measurement_theta_min      2.50
_cell_volume                     4366.7(14)
_computing_cell_refinement       'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_data_collection       'APEX2 v2.1-0 (Bruker AXS, 2006a)'
_computing_data_reduction        'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_molecular_graphics    'SHELXTL v6.12 (Bruker AXS, 2001)'
_computing_publication_material  'UdMX (Maris, 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Bruker Smart 6000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'Montel 200 optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.113
_diffrn_reflns_av_sigmaI/netI    0.1386
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            52791
_diffrn_reflns_theta_full        68.64
_diffrn_reflns_theta_max         68.64
_diffrn_reflns_theta_min         1.25
_exptl_absorpt_coefficient_mu    1.497
_exptl_absorpt_correction_T_max  0.833
_exptl_absorpt_correction_T_min  0.498
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1800
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.617
_refine_diff_density_min         -1.245
_refine_diff_density_rms         0.110
_refine_ls_extinction_coef       0.00153(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.952
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1054
_refine_ls_number_reflns         15547
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.952
_refine_ls_R_factor_all          0.2164
_refine_ls_R_factor_gt           0.1084
_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^)+(0.1726P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2739
_refine_ls_wR_factor_ref         0.3258
_reflns_number_gt                5520
_reflns_number_total             15547
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om900840f_si_001.cif
_cod_data_source_block           comp6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_geom_bond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (136
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (187 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4366.7(15)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4070471