Chemistry surrounding monomeric copper(I) methyl, phenyl, anilido, ethoxide, and phenoxide complexes supported by N-heterocyclic carbene ligands: reactivity consistent with both early and late transition metal systems.
Goj, Laurel A.; Blue, Elizabeth D.; Delp, Samuel A.; Gunnoe, T. Brent; Cundari, Thomas R.; Pierpont, Aaron W.; Petersen, Jeffrey L.; Boyle, Paul D.; Inorganic chemistry 45 (2006) 9032–9045; doi:10.1021/ic0611995

data_4350556
_publ_section_title
;
 Chemistry surrounding monomeric copper(I) methyl, phenyl, anilido,
 ethoxide, and phenoxide complexes supported by N-heterocyclic carbene
 ligands: reactivity consistent with both early and late transition metal
 systems.
;
_journal_issue                   22
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9032
_journal_page_last               9045
_journal_paper_doi               10.1021/ic0611995
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C29 H43 Cu N2 O'
_chemical_formula_weight         499.19
_chemical_name_common            (SIPr)Cu(OEt)
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 c 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                 93.200(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.434(3)
_cell_length_b                   12.791(2)
_cell_length_c                   13.284(2)
_cell_measurement_reflns_used    2703
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      22.50
_cell_measurement_theta_min      2.34
_cell_volume                     2957.7(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_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  0.0712
_diffrn_reflns_av_sigmaI/netI    0.1911
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10432
_diffrn_reflns_theta_full        27.64
_diffrn_reflns_theta_max         27.64
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    0.759
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.121
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular crystalline fragment'
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.468
_refine_diff_density_min         -0.257
_refine_diff_density_rms         0.057
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.05(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.924
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         6036
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.923
_refine_ls_R_factor_all          0.1676
_refine_ls_R_factor_gt           0.0649
_refine_ls_shift/su_max          0.003
_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          0.1311
_refine_ls_wR_factor_ref         0.1632
_reflns_number_gt                2822
_reflns_number_total             6036
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0611995si20060630_103335.cif
_cod_data_source_block           (SIPr)Cu(OEt)
_cod_original_cell_volume        2957.6(9)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               4350556