More examples of the 15-crown-5···H~2~O—<i>M</i>—OH~2~···15-crown-5 motif, <i>M</i> = Al^3+^, Cr^3+^ and Pd^2+^
Siegler, Maxime A.; Prewitt, Jacob H.; Kelley, Steven P.; Parkin, Sean; Selegue, John P.; Brock, Carolyn Pratt; Acta Crystallographica Section B 66 (2010) 213–221; doi:10.1107/S0108768110007202

data_2104711
_publ_section_title
;
 More examples of the
 15-crown-5&#x00B7;&#x00B7;&#x00B7;H~2~O---<i>M</i>---OH~2~&#x00B7;&#x00B7;&#x00B7;15-crown-5
 motif, <i>M</i> = Al^3+^, Cr^3+^ and Pd^2+^
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              213
_journal_page_last               221
_journal_paper_doi               10.1107/S0108768110007202
_journal_volume                  66
_journal_year                    2010
_chemical_formula_moiety
'2(C10 H20 O5), H4 N2 O8 Pd, 2(H N O3), 2(H2 O)'
_chemical_formula_sum            'C20 H50 N4 O26 Pd'
_chemical_formula_weight         869.04
_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                79.8454(9)
_cell_angle_beta                 87.7567(9)
_cell_angle_gamma                70.4587(11)
_cell_formula_units_Z            1
_cell_length_a                   7.00480(10)
_cell_length_b                   9.8871(2)
_cell_length_c                   13.8440(3)
_cell_measurement_reflns_used    7640
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     889.21(3)
_computing_cell_refinement       'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELX-97 (Sheldrick, 2008) and local procedures
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 9.1
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_diffrn_measurement_method       '\w scans at fixed \c = 55\%'
_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  0.0520
_diffrn_reflns_av_sigmaI/netI    0.0397
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            24163
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.45
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.624
_exptl_absorpt_correction_T_max  0.940
_exptl_absorpt_correction_T_min  0.596
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.623
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             452
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.611
_refine_diff_density_min         -0.781
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         4040
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0250
_refine_ls_R_factor_gt           0.0244
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0166P)^2^+0.5279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0621
_refine_ls_wR_factor_ref         0.0626
_reflns_number_gt                3946
_reflns_number_total             4040
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            zb5012.cif
_cod_data_source_block           5
_cod_database_code               2104711
_cod_database_fobs_code          2104711