Caesium 18-crown[6] complexes with aromatic polycarboxylate anions: preparation, solid-state characterization and thermal behaviour
Braga, Dario; d'Agostino, Simone; Polito, Marco; Rubini, Katia; Grepioni, Fabrizia; CrystEngComm 11 (2009) 1994–; doi:10.1039/b907224a

data_7201273
_publ_section_title
;
 Caesium 18-crown[6] complexes with aromatic polycarboxylate anions:
 preparation, solid-state characterization and thermal behaviour
;
_journal_issue                   9
_journal_name_full               CrystEngComm
_journal_page_first              1994
_journal_paper_doi               10.1039/b907224a
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C21 H29 Cs O12'
_chemical_formula_weight         606.35
_chemical_name_systematic
;
?
;
_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                   8.3466(2)
_cell_length_b                   15.8125(3)
_cell_length_c                   18.7686(4)
_cell_measurement_temperature    293(2)
_cell_volume                     2477.09(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.874
_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  0.0324
_diffrn_reflns_av_sigmaI/netI    0.0699
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            10833
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.22
_diffrn_reflns_theta_min         2.67
_exptl_absorpt_coefficient_mu    1.555
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.83259
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.626
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.331
_refine_diff_density_min         -0.438
_refine_diff_density_rms         0.074
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.002(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.842
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         5315
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.842
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0268P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0556
_refine_ls_wR_factor_ref         0.0583
_reflns_number_gt                4100
_reflns_number_total             5315
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b907224a.txt
_cod_data_source_block           1-rev
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7201273