Network formation and photoluminescence in copper(I) halide complexes with substituted piperazine ligands.
Safko, Jason P.; Kuperstock, Jacob E.; McCullough, Shannon M.; Noviello, Andrew M.; Li, Xiaobo; Killarney, James P.; Murphy, Caitlin; Patterson, Howard H.; Bayse, Craig A.; Pike, Robert D.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 11663–11674; doi:10.1039/c2dt31241g

data_7020331
_publ_section_title
;
 Network formation and photoluminescence in copper(I) halide complexes
 with substituted piperazine ligands.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11663
_journal_page_last               11674
_journal_paper_doi               10.1039/c2dt31241g
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C10 H24 Br4 Cu4 N4'
_chemical_formula_sum            'C10 H24 Br4 Cu4 N4'
_chemical_formula_weight         774.13
_chemical_name_systematic
;
?
;
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   33.4094(14)
_cell_length_b                   37.0836(16)
_cell_length_c                   6.5516(3)
_cell_measurement_reflns_used    9041
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      70.74
_cell_measurement_theta_min      2.65
_cell_volume                     8117.0(6)
_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 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       44
_diffrn_reflns_limit_k_min       -44
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            33694
_diffrn_reflns_theta_full        66.93
_diffrn_reflns_theta_max         66.93
_diffrn_reflns_theta_min         3.56
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    13.933
_exptl_absorpt_correction_T_max  0.2748
_exptl_absorpt_correction_T_min  0.1196
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.534
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             5888
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.628
_refine_diff_density_min         -0.823
_refine_diff_density_rms         0.073
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(3)
_refine_ls_extinction_coef       0.000063(3)
_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   1.089
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         3171
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0249
_refine_ls_R_factor_gt           0.0247
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0146P)^2^+56.2456P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0572
_refine_ls_wR_factor_ref         0.0573
_reflns_number_gt                3145
_reflns_number_total             3171
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31241g.txt
_cod_data_source_block           fdd2
_cod_original_sg_symbol_H-M      Fdd2
_cod_database_code               7020331