Three alkaline-earth metal complexes with 3D networks constructed from a 7,7,8,8-tetracyanoquinodimethane ligand: synthesis, structure and electrochemical properties.
Li, Qiang; Yan, Pengfei; Hou, Guangfeng; Wang, Yan; Li, Guangming; Dalton transactions (Cambridge, England : 2003) 42 (2013) 7810–7815; doi:10.1039/c3dt50261a

data_7022915
_publ_section_title
;
 Three alkaline-earth metal complexes with 3D networks constructed from a
 7,7,8,8-tetracyanoquinodimethane ligand: synthesis, structure and
 electrochemical properties.
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7810
_journal_page_last               7815
_journal_paper_doi               10.1039/c3dt50261a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C18 H12 Ca N6 O3, 0.5(C12 H4 N4)'
_chemical_formula_sum            'C24 H14 Ca N8 O3'
_chemical_formula_weight         502.51
_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                82.89(3)
_cell_angle_beta                 83.80(3)
_cell_angle_gamma                77.68(3)
_cell_formula_units_Z            2
_cell_length_a                   9.4930(19)
_cell_length_b                   11.242(2)
_cell_length_c                   11.270(2)
_cell_measurement_reflns_used    7600
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      3.16
_cell_volume                     1161.9(4)
_computing_cell_refinement       'RAPID-AUTO (Rigaku 1998 <i>RAPID-AUTO</i>)'
_computing_data_collection       'RAPID-AUTO (Rigaku 1998 <i>RAPID-AUTO</i>)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 2002)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scan'
_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  0.0758
_diffrn_reflns_av_sigmaI/netI    0.1138
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            11395
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.16
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.315
_exptl_absorpt_correction_T_max  0.9668
_exptl_absorpt_correction_T_min  0.8940
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.436
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             516
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.360
_refine_diff_density_min         -0.572
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         5253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.1186
_refine_ls_R_factor_gt           0.0615
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0403P)^2^+0.4970P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1206
_refine_ls_wR_factor_ref         0.1545
_reflns_number_gt                2929
_reflns_number_total             5253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt50261a.txt
_cod_data_source_block           lq-1072
_cod_database_code               7022915