[Ni(MeCN)(H~2~O)~2~(NO~3~)~2~]·(15-crown-5)·MeCN: detailed study of a four-phase sequence that includes an intermediate modulated phase
Siegler, Maxime A.; Parkin, Sean; Brock, Carolyn Pratt; Acta Crystallographica Section B 68 (2012) 389–400; doi:10.1107/S0108768112018319

data_2105182
_publ_section_title
;
 [Ni(MeCN)(H~2~O)~2~(NO~3~)~2~]&#x00B7;(15-crown-5)&#x00B7;MeCN: detailed
 study of a four-phase sequence that includes an intermediate modulated
 phase
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              389
_journal_page_last               400
_journal_paper_doi               10.1107/S0108768112018319
_journal_volume                  68
_journal_year                    2012
_chemical_formula_moiety         'C10 H20 O5, C2 H7 N3 Ni O8, C2 H3 N'
_chemical_formula_sum            'C14 H30 N4 Ni O13'
_chemical_formula_weight         521.13
_chemical_name_systematic
;
acetonitrilediaqual-\k^1^O-nitrato-\k^2^O-nitratonickel(II) (15-crown-5)
acetonitrile solvate
;
_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 and C P Brock'
_cell_angle_alpha                90.
_cell_angle_beta                 105.4370(10)
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   12.1688(2)
_cell_length_b                   12.2058(2)
_cell_length_c                   16.1152(2)
_cell_measurement_reflns_used    5539
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2307.24(6)
_computing_cell_refinement       'DENZO-SMN (Nonius, 1999)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO-SMN (Nonius, 1999)'
_computing_molecular_graphics    'Mercury (Macrae et al., 2008)'
_computing_publication_material  'SHELX-97 and local procedures'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      170(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  0.0501
_diffrn_reflns_av_sigmaI/netI    0.0680
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            10320
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.74
_diffrn_standards_decay_%        <2
_exptl_absorpt_coefficient_mu    0.910
_exptl_absorpt_correction_T_max  0.9145
_exptl_absorpt_correction_T_min  0.8044
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 2006)'
_exptl_crystal_colour            'pale green'
_exptl_crystal_density_diffrn    1.500
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.760
_refine_diff_density_min         -0.390
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.972
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     328
_refine_ls_number_reflns         5295
_refine_ls_number_restraints     14
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.0943
_refine_ls_R_factor_gt           0.0427
_refine_ls_shift/su_max          0.026
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0556P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.1123
_reflns_number_gt                3197
_reflns_number_total             5295
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            hw5021.cif
_cod_data_source_block           170K_III_1
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2105182
_cod_database_fobs_code          2105182