Nanostructured potassium-organic framework as an effective anode for potassium-ion batteries with a long cycle life.
Li, Chao; Wang, Kuaibing; Li, Jingze; Zhang, Qichun; Nanoscale 12 (2020) 7870–7874; doi:10.1039/d0nr00964d

data_1557514
_publ_section_title
;
 Nanostructured potassium-organic framework as an effective anode for
 potassium-ion batteries with a long cycle life.
;
_journal_issue                   14
_journal_name_full               Nanoscale
_journal_page_first              7870
_journal_page_last               7874
_journal_paper_doi               10.1039/d0nr00964d
_journal_volume                  12
_journal_year                    2020
_chemical_formula_sum            'C7 H3 K N O4'
_chemical_formula_weight         204.20
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-I 2ya'
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_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-11-01 deposited with the CCDC.	2020-03-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 103.046(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_b                   11.6424(7)
_cell_length_c                   9.2407(6)
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_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.5170
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_cell_volume                     739.74(9)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.848
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0120
_diffrn_reflns_av_unetI/netI     0.0209
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.848
_diffrn_reflns_limit_h_max       8
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_diffrn_reflns_limit_k_min       -16
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_diffrn_reflns_point_group_measured_fraction_full 0.999
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_diffrn_reflns_theta_max         29.234
_diffrn_reflns_theta_min         3.441
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.693
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.85236
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.834
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_ls_extinction_method     none
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0472P)^2^+0.3243P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0916
_refine_ls_wR_factor_ref         0.0984
_reflns_Friedel_coverage         0.000
_reflns_number_gt                743
_reflns_number_total             853
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0nr00964d2.cif
_cod_data_source_block           shelx
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'none' was changed to
'?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 1557514.cif.
;
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_database_code               1557514
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.793
_shelx_estimated_absorpt_t_max   0.846
_shelx_res_checksum              97225