Investigations on the Synthesis, Structures, and Properties of New Copper(I) 2,3-Dimethylpyrazine Coordination Compounds
Jess, Inke; Näther, Christian; Inorganic Chemistry 45 (2006) 7446–7454; doi:10.1021/ic060747b

data_4332717
_publ_section_title
;
 Investigations on the Synthesis, Structures, and Properties of New
 Copper(I) 2,3-Dimethylpyrazine Coordination Compounds
;
_journal_issue                   18
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7446
_journal_page_last               7454
_journal_paper_doi               10.1021/ic060747b
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C54 H64 Cl4 Cu4 N18'
_chemical_formula_weight         1361.19
_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                71.865(9)
_cell_angle_beta                 75.406(9)
_cell_angle_gamma                63.465(8)
_cell_formula_units_Z            1
_cell_length_a                   11.3141(8)
_cell_length_b                   11.6882(9)
_cell_length_c                   13.9765(10)
_cell_measurement_temperature    200(2)
_cell_volume                     1557.5(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.947
_diffrn_measured_fraction_theta_max 0.947
_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  0.0386
_diffrn_reflns_av_sigmaI/netI    0.0468
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            14761
_diffrn_reflns_theta_full        28.03
_diffrn_reflns_theta_max         28.03
_diffrn_reflns_theta_min         2.38
_exptl_absorpt_coefficient_mu    1.570
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             698
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.425
_refine_diff_density_min         -0.704
_refine_diff_density_rms         0.067
_refine_ls_extinction_coef       0.0101(14)
_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   1.005
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     388
_refine_ls_number_reflns         7139
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.0581
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0583P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0937
_refine_ls_wR_factor_ref         0.1014
_reflns_number_gt                5279
_reflns_number_total             7139
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060747bsup1.cif
_cod_data_source_block           d60
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4332717