3-Methoxycarbonyl-1-methylpyrazinium tetrachlorido(pyrazine-2-carboxylato-κ^2^<i>N</i>^1^,<i>O</i>)stannate(IV)
Najafi, Ezzatollah; Amini, Mostafa M.; Ng, Seik Weng; Acta Crystallographica Section E 67 (2011) m238–; doi:10.1107/S1600536811001929

data_2229218
_publ_section_title
;
 3-Methoxycarbonyl-1-methylpyrazinium
 tetrachlorido(pyrazine-2-carboxylato-\k^2^<i>N</i>^1^,<i>O</i>)stannate(IV)
;
_journal_coeditor_code           SI2325
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m238
_journal_paper_doi               10.1107/S1600536811001929
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          '(C7 H9 N2 O2) [Sn Cl4 (C5 H3 N2 O2)]'
_chemical_formula_moiety         'C7 H9 N2 O2 +, C5 H3 Cl4 N2 O2 Sn -'
_chemical_formula_sum            'C12 H12 Cl4 N4 O4 Sn'
_chemical_formula_weight         536.75
_chemical_name_systematic
;
3-Methoxycarbonyl-1-methylpyrazinium
tetrachlorido(pyrazine-2-carboxylato-\k^2^<i>N</i>^1^,<i>O</i>)stannate(IV)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 94.554(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0655(2)
_cell_length_b                   26.7603(7)
_cell_length_c                   9.5220(2)
_cell_measurement_reflns_used    5671
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.2
_cell_measurement_theta_min      2.3
_cell_volume                     1794.69(8)
_computing_cell_refinement       'CrysAlis PRO (Agilent Technologies, 2010)'
_computing_data_collection       'CrysAlis PRO (Agilent Technologies, 2010)'
_computing_data_reduction        'CrysAlis PRO (Agilent Technologies, 2010)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.4041
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type
'Agilent SuperNova Dual diffractometer with an Atlas detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  Mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_sigmaI/netI    0.0329
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8726
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.28
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.045
_exptl_absorpt_correction_T_max  0.6852
_exptl_absorpt_correction_T_min  0.5790
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis PRO; Agilent Technologies, 2010)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.987
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.584
_refine_diff_density_min         -0.707
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3964
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0252
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0273P)^2^+1.1852P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0561
_refine_ls_wR_factor_ref         0.0590
_reflns_number_gt                3582
_reflns_number_total             3964
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            si2325.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2229218
_cod_database_fobs_code          2229218