Homochiral Helical Metal-Organic Frameworks of Potassium
Daniel L. Reger; Andrew P. Leitner; Mark D. Smith; Inorganic Chemistry 51 (2012) 10071–10073; doi:10.1021/ic301228j

data_4330486
_publ_contact_author_address
;
Department of Chemistry and Biochemistry
University of South Carolina
Columbia, South Carolina 29208
USA
;
_publ_contact_author_email       reger@mailbox.sc.edu
_publ_contact_author_fax         '1 803 777 9521'
_publ_contact_author_name        'Professor Daniel L. Reger'
_publ_contact_author_phone       '1 803 777 2587'
_publ_section_title
;
 Homochiral Helical Metal-Organic Frameworks of Potassium
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10071
_journal_page_last               10073
_journal_paper_doi               10.1021/ic301228j
_journal_volume                  51
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H14 K N O5'
_chemical_formula_sum            'C16 H14 K N O5'
_chemical_formula_weight         339.38
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   6.8979(5)
_cell_length_b                   14.3515(10)
_cell_length_c                   14.5164(10)
_cell_measurement_reflns_used    9638
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.483
_cell_measurement_theta_min      2.806
_cell_volume                     1437.05(18)
_computing_cell_refinement       'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_data_collection       'SMART Version 5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_molecular_graphics    various
_computing_publication_material  'SHELXTL Version 6.14 (Bruker, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '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  0.0505
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            17224
_diffrn_reflns_theta_full        25.57
_diffrn_reflns_theta_max         25.57
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    0.397
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.569
_exptl_crystal_description       'irregular chunk, cleaved'
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.34
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     214
_refine_ls_number_reflns         2702
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0277
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+0.0847P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0721
_refine_ls_wR_factor_ref         0.0727
_reflns_number_gt                2597
_reflns_number_total             2702
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic301228j_si_001_2.cif
_cod_data_source_block           1
_cod_database_code               4330486