Interesting organic supramolecular structures constructed by piperazine/N,N′-dimethylpiperazine with aromatic multicomponent acids: synthon cooperation and structural diversity
Wang, Lei; Zhao, Lei; Xu, Lingyan; Chen, Ruixin; Yang, Yu; CrystEngComm 14 (2012) 6998–; doi:10.1039/c2ce25627d

data_7238489
_publ_section_title
;
 Interesting organic supramolecular structures constructed by
 piperazine/N,N&#x2032;-dimethylpiperazine with aromatic multicomponent
 acids: synthon cooperation and structural diversity
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              6998
_journal_paper_doi               10.1039/c2ce25627d
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C12 H17 N3 O7'
_chemical_formula_sum            'C12 H17 N3 O7'
_chemical_formula_weight         315.29
_chemical_melting_point          ?
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P n a 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                   6.5078(11)
_cell_length_b                   19.897(2)
_cell_length_c                   10.9177(18)
_cell_measurement_temperature    293(2)
_cell_volume                     1413.7(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXP-97
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 12.00cm
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0267
_diffrn_reflns_av_sigmaI/netI    0.0282
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7262
_diffrn_reflns_theta_full        25.73
_diffrn_reflns_theta_max         25.73
_diffrn_reflns_theta_min         2.05
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.123
_exptl_absorpt_correction_T_max  0.0001
_exptl_absorpt_correction_T_min  0.0001
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.161
_refine_diff_density_min         -0.173
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.4(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         2445
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0368
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0497P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0844
_refine_ls_wR_factor_ref         0.0887
_reflns_number_gt                2161
_reflns_number_total             2445
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25627d.txt
_cod_data_source_block           w2
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value 'not measured' was changed
to '?' -- the value is undefined or not given.

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      Pna21
_cod_database_code               7238489