Homochiral zinc phosphonates with layered and open framework structures using polycarboxylate as second linkers
Liu, Xun-Gao; Huang, Jian; Bao, Song-Song; Li, Yi-Zhi; Zheng, Li-Min; Dalton Transactions  (2009) 9837–9842; doi:10.1039/b914583d

data_7002769
_publ_section_title
;
 Homochiral zinc phosphonates with layered and open framework
 structures using polycarboxylate as second linkers
;
_journal_issue                   44
_journal_name_full               'Dalton Transactions'
_journal_page_first              9837
_journal_page_last               9842
_journal_paper_doi               10.1039/b914583d
_journal_year                    2009
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C52 H60 N4 O20 P4 Zn4, 2(H2 O)'
_chemical_formula_sum            'C52 H64 N4 O22 P4 Zn4'
_chemical_formula_weight         1482.43
_chemical_name_systematic
;
?
;
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                   22.773(3)
_cell_length_b                   27.901(4)
_cell_length_c                   9.9919(15)
_cell_measurement_reflns_used    4111
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      23.13
_cell_measurement_theta_min      2.34
_cell_volume                     6348.7(16)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2000)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart Apex CCD '
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0334
_diffrn_reflns_av_sigmaI/netI    0.0469
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            34419
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    1.670
_exptl_absorpt_correction_T_max  0.72
_exptl_absorpt_correction_T_min  0.65
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_density_diffrn    1.551
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3040
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.541
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.027(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     788
_refine_ls_number_reflns         12451
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0532
_refine_ls_R_factor_gt           0.0413
_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^)+(0.0477P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0877
_refine_ls_wR_factor_ref         0.0900
_reflns_number_gt                10454
_reflns_number_total             12451
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b914583d.txt
_cod_data_source_block           Zn
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P2(1)2(1)2 '
_cod_database_code               7002769