[M(H2O)2(15-crown-5)](NO3)2: A System Rich in Polymorphic and Modulated Phases†
Hao, Xiang; Siegler, Maxime A.; Parkin, Sean; Brock, Carolyn Pratt; Crystal Growth & Design 5 (2005) 2225–; doi:10.1021/cg050312j

data_4505249
_publ_section_title
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 [M(H2O)2(15-crown-5)](NO3)2:&#x2009; A System Rich in Polymorphic and
 Modulated Phases&#x2020;
;
_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2225
_journal_paper_doi               10.1021/cg050312j
_journal_volume                  5
_journal_year                    2005
_chemical_formula_moiety         '(C10 H24 O7 Fe 2+), 2(N O3 1-)'
_chemical_formula_sum            'C10 H24 Fe N2 O13'
_chemical_formula_weight         436.16
_chemical_name_systematic
;
 diaqua(15-crown-5)iron(II) nitrate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 96.23(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            12
_cell_length_a                   14.664(2)
_cell_length_b                   14.192(2)
_cell_length_c                   25.991(3)
_cell_measurement_reflns_used    12810
_cell_measurement_temperature    263(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     5377.1(12)
_computing_cell_refinement       'DENZO-SMN (Nonius, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Nonius, 1997)'
_computing_molecular_graphics    'XP in SHELXTL (Bruker, 1995)'
_computing_publication_material  'SHELX-97 and local procedures'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      263(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0282
_diffrn_reflns_av_sigmaI/netI    0.0426
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            18490
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.40
_exptl_absorpt_coefficient_mu    0.911
_exptl_absorpt_correction_T_max  0.9144
_exptl_absorpt_correction_T_min  0.7717
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.616
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.550
_refine_diff_density_min         -0.376
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.968
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     703
_refine_ls_number_reflns         9457
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.968
_refine_ls_R_factor_all          0.0985
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0596P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0958
_refine_ls_wR_factor_ref         0.1213
_reflns_number_gt                4626
_reflns_number_total             9457
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            cg050312jsi20050701_021824.cif
_cod_data_source_block           k05196
_cod_original_cell_volume        5377.0(12)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4505249