Syntheses, crystal structures and magnetic properties of copper(ii) dicyanamide complexes; dinuclear, chain and ladder compounds
Brita Vangdal; Jose Carranza; Francesc Lloret; Miguel Julve; Jorunn Sletten; Journal of the Chemical Society, Dalton Transactions  (2002) 566–574; doi:10.1039/B105981P

data_7702292
_publ_section_title
;
 Syntheses, crystal structures and magnetic properties of copper(ii)
 dicyanamide complexes; dinuclear, chain and ladder compounds
;
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              566
_journal_page_last               574
_journal_paper_doi               10.1039/B105981P
_journal_year                    2002
_chemical_formula_structural     '[Cu2 (C8 H6 N4) (C2 N3)4]n'
_chemical_formula_sum            'C16 H6 Cu2 N16'
_chemical_formula_weight         549.45
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 107.142(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.5550(2)
_cell_length_b                   11.3017(5)
_cell_length_c                   11.8904(4)
_cell_measurement_temperature    153(2)
_cell_volume                     970.15(6)
_computing_cell_refinement       'SAINT, version 5.00'
_computing_data_collection       'SMART, version 5.051'
_computing_data_reduction        'SAINT, version 5.00'
_computing_molecular_graphics    'XP, version 4.3, 1992'
_computing_publication_material  'CIFTAB, Sheldrick, 1993'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measurement_device       '2K SMART CCD'
_diffrn_measurement_method       \\w
_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  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0206
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8482
_diffrn_reflns_theta_max         30.48
_diffrn_reflns_theta_min         2.54
_diffrn_standards_number
'50 first frames remeasured at end of data collection'
_exptl_absorpt_coefficient_mu    2.239
_exptl_absorpt_correction_T_max  'see above'
_exptl_absorpt_correction_T_min  'Tmin/Tmax ratio 0.822880'
_exptl_absorpt_correction_type   'empirical, SADABS'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.881
_exptl_crystal_description       needle
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.526
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.086
_refine_ls_goodness_of_fit_obs   1.135
_refine_ls_hydrogen_treatment    'riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2937
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_restrained_S_obs      1.135
_refine_ls_R_factor_all          0.0273
_refine_ls_R_factor_obs          0.0224
_refine_ls_shift/esd_max         0.005
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\\s^2^(Fo^2^)+(0.0286P)^2^+0.4227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0624
_refine_ls_wR_factor_obs         0.0608
_reflns_number_observed          2570
_reflns_number_total             2938
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b105981p.cif
_cod_data_source_block           cubpmdca
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_refine_ls_weighting_scheme' value 'calc
w=1/[\\s^2^(Fo^2^)+(0.0286P)^2^+0.4227P] where P=(Fo^2^+2Fc^2^)/3'
was changed to 'calc'. A new data item '_refine_ls_weighting_details'
was created with the value set to
'w=1/[\\s^2^(Fo^2^)+(0.0286P)^2^+0.4227P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21 / c'
_cod_database_code               7702292