From 1D Zigzag Chains to 3D Chiral Frameworks: Synthesis and Properties of Praseodymium(III) and Neodymium(III) Coordination Polymers
Zhang, Xiaoping; Xu, Na; Zhang, Shiyuan; Zhao, Xiao-Qing; Cheng, Peng; RSC Advances  (2014) –; doi:10.1039/C4RA06629D

data_7217807
_publ_section_title
;
 From 1D Zigzag Chains to 3D Chiral Frameworks: Synthesis and Properties
 of Praseodymium(III) and Neodymium(III) Coordination Polymers
;
_journal_name_full               'RSC Advances'
_journal_paper_doi               10.1039/C4RA06629D
_journal_year                    2014
_chemical_formula_moiety         'C4 H7 N3 O7.50 Pr'
_chemical_formula_sum            'C4 H7 N3 O7.5 Pr'
_chemical_formula_weight         358.04
_chemical_name_systematic
;
?
;
_space_group_IT_number           152
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 31 2"'
_symmetry_space_group_name_H-M   'P 31 2 1'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   8.8263(12)
_cell_length_b                   8.8263(12)
_cell_length_c                   9.910(2)
_cell_measurement_temperature    293(2)
_cell_volume                     668.59(19)
_computing_cell_refinement       Crystalclear
_computing_data_collection       Crystalclear
_computing_data_reduction        Crystalclear
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0144
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6804
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.37
_exptl_absorpt_coefficient_mu    5.498
_exptl_absorpt_correction_T_max  0.6094
_exptl_absorpt_correction_T_min  0.3520
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Crystalclear
_exptl_crystal_density_diffrn    2.668
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             513
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.665
_refine_diff_density_min         -0.868
_refine_diff_density_rms         0.094
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(2)
_refine_ls_extinction_coef       0.0182(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.200
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         1028
_refine_ls_number_restraints     78
_refine_ls_restrained_S_all      1.157
_refine_ls_R_factor_all          0.0151
_refine_ls_R_factor_gt           0.0150
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0157P)^2^+1.0798P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0372
_refine_ls_wR_factor_ref         0.0373
_reflns_number_gt                1027
_reflns_number_total             1028
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra06629d2.cif
_cod_data_source_block           Pr_3D
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P3121
_cod_original_formula_sum        'C4 H7 N3 O7.50 Pr'
_cod_database_code               7217807