Crystal structure, spectroscopic and thermal properties of the 1,3-diethyl-2-thiobarbiturate of Rb+, Cs+, Tl+ and NH4+ complexes
Molokeev, Maxim; Golovnev, Nikolay; Vereshchagin, Sergey; Atuchin, Victor; Polyhedron 98 (2015) 113–; doi:10.1016/j.poly.2015.05.048

data_1529241
_publ_section_title
;
 Crystal structure, spectroscopic and thermal properties of the
 1,3-diethyl-2-thiobarbiturate of Rb+, Cs+, Tl+ and NH4+ complexes
;
_journal_issue                   0
_journal_name_full               Polyhedron
_journal_page_first              113
_journal_paper_doi               10.1016/j.poly.2015.05.048
_journal_volume                  98
_journal_year                    2015
_chemical_formula_moiety         'C8 H11 N2 O2 Rb S'
_chemical_formula_sum            'C8 H11 N2 O2 Rb S'
_chemical_formula_weight         284.72
_chemical_name_systematic
; 
Catena-(mu~6~-1,3-diethyl-2-thiobarbiturato-O,O,O'O',S,S)-rubidium 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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            4
_cell_length_a                   4.3730(9)
_cell_length_b                   14.789(3)
_cell_length_c                   16.923(3)
_cell_measurement_temperature    296(2)
_cell_volume                     1094.4(4)
_computing_cell_refinement       'APEX2 (Bruker, 2003-2008)'
_computing_data_collection       'APEX2 (Bruker, 2003-2008)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2005)'
_computing_publication_material  'publCIF (Westrip, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART APEXII'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0586
_diffrn_reflns_av_sigmaI/netI    0.0638
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8922
_diffrn_reflns_theta_full        26.46
_diffrn_reflns_theta_max         26.46
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    4.691
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.4150
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2004/1. Bruker AXS Inc., Madison, Wisconsin, USA, 2004'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.728
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.423
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.022(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     129
_refine_ls_number_reflns         2265
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0343
_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^)+(0.0060P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0588
_refine_ls_wR_factor_ref         0.0629
_reflns_number_gt                1853
_reflns_number_total             2265
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            RbDETBA.cif
_cod_data_source_block           a
_cod_original_cell_volume        1094.5(4)
_cod_original_sg_symbol_Hall
;
P 2ac 2ab
;
_cod_original_sg_symbol_H-M      'P21 21 21'
_cod_database_code               1529241
_cod_database_fobs_code          1529241