A 2D homochiral inorganic-organic framework exhibiting a spin-flop transition.
Li, Wei; Barton, Phillip T.; Burwood, Ryan P.; Cheetham, Anthony K.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 7147–7152; doi:10.1039/c0dt01686a

data_7015989
_publ_section_title
;
 A 2D homochiral inorganic-organic framework exhibiting a spin-flop
 transition.
;
_journal_issue                   27
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7147
_journal_page_last               7152
_journal_paper_doi               10.1039/c0dt01686a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C18 H17 N3 O9 Zn'
_chemical_formula_sum            'C18 H17 N3 O9 Zn'
_chemical_formula_weight         484.72
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 112.816(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.8701(9)
_cell_length_b                   8.4038(5)
_cell_length_c                   11.3838(10)
_cell_measurement_reflns_used    6263
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.2325
_cell_measurement_theta_min      3.0187
_cell_volume                     958.54(15)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.34 (release 07-07-2010 CrysAlis171 .NET)
(compiled Jul  7 2010,16:04:54)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.34 (release 07-07-2010 CrysAlis171 .NET)
(compiled Jul  7 2010,16:04:54)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.34 (release 07-07-2010 CrysAlis171 .NET)
(compiled Jul  7 2010,16:04:54)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini ultra'
_diffrn_measurement_method       '\w 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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5770
_diffrn_reflns_theta_full        25.40
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         3.11
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.341
_exptl_absorpt_correction_T_max  0.9360
_exptl_absorpt_correction_T_min  0.7752
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.679
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       sheet
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.506
_refine_diff_density_min         -0.273
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.567(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         5770
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_gt           0.0380
_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^)+(0.0600P)^2^+0.2273P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1023
_refine_ls_wR_factor_ref         0.1033
_reflns_number_gt                5354
_reflns_number_total             5770
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt01686a.txt
_cod_data_source_block           Zn
_cod_original_cell_volume        958.54(13)
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7015989