Copper(I) cyanide networks: synthesis, luminescence behavior and thermal analysis. Part 1. Diimine ligands.
Tronic, Tristan A.; deKrafft, Kathryn E; Lim, Mi Jung; Ley, Amanda N.; Pike, Robert D.; Inorganic chemistry 46 (2007) 8897–8912; doi:10.1021/ic7007057

data_4339496
_publ_section_title
;
 Copper(I) cyanide networks: synthesis, luminescence behavior and thermal
 analysis. Part 1. Diimine ligands.
;
_journal_issue                   21
_journal_name_full               'Inorganic chemistry'
_journal_page_first              8897
_journal_page_last               8912
_journal_paper_doi               10.1021/ic7007057
_journal_volume                  46
_journal_year                    2007
_chemical_formula_moiety         'C6 H5 Cu2 N5'
_chemical_formula_sum            'C6 H5 Cu2 N5'
_chemical_formula_weight         274.23
_chemical_name_common
;
 [(CuCN)~2~(PyzNH~2~)]
;
_chemical_name_systematic
; 
 catena-poly[!mu-aminopyrazinedi-!mu-cyano-)dicopper(I)]
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 91.873(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9992(2)
_cell_length_b                   14.9522(5)
_cell_length_c                   8.0418(3)
_cell_measurement_temperature    100(2)
_cell_volume                     841.15(5)
_computing_cell_refinement       'SAINTPLUS (Bruker AXS, 2004)'
_computing_data_collection       'APEX2 (Bruker AXS, 2004)'
_computing_data_reduction        SAINTPLUS
_computing_molecular_graphics    'ORTEP3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'XSHELL (Bruker, 2004)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker SMART Apex II CCD'
_diffrn_measurement_method       '\w and \y'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0408
_diffrn_reflns_av_sigmaI/netI    0.0264
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            9121
_diffrn_reflns_theta_full        66.95
_diffrn_reflns_theta_max         66.95
_diffrn_reflns_theta_min         5.92
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.872
_exptl_absorpt_correction_T_max  0.7990
_exptl_absorpt_correction_T_min  0.4351
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.165
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.397
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1488
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0326
_refine_ls_R_factor_gt           0.0248
_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^)+(0.0328P)^2^+0.3868P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0594
_refine_ls_wR_factor_ref         0.0628
_reflns_number_gt                1256
_reflns_number_total             1488
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic7007057-file003.cif
_cod_data_source_block           2d
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4339496