4-Nitrophenyl phosphoric acid and its four different potassium salts: a solid state structure and kinetic study
Kuczek, Marian; Bryndal, Iwona; Lis, Tadeusz; CrystEngComm 8 (2006) 150–; doi:10.1039/b515789g

data_7203178
_publ_section_title
;
 4-Nitrophenyl phosphoric acid and its four different potassium salts:
 a solid state structure and kinetic study
;
_journal_issue                   2
_journal_name_full               CrystEngComm
_journal_page_first              150
_journal_paper_doi               10.1039/b515789g
_journal_volume                  8
_journal_year                    2006
_chemical_formula_moiety         'C12 H11 K N2 O12 P2'
_chemical_formula_sum            'C12 H11 K N2 O12 P2'
_chemical_formula_weight         476.27
_chemical_name_common
'SEMIPOTASSIUM SALT OF 4-NITROPHENYL PHOSPHORIC ACID'
_chemical_name_systematic
;
SEMIPOTASSIUM SALT OF 4-NITROPHENYL PHOSPHORIC ACID
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 102.90(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.669(2)
_cell_length_b                   19.817(4)
_cell_length_c                   11.707(2)
_cell_measurement_reflns_used    26796
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      35
_cell_measurement_theta_min      3.08
_cell_volume                     1734.3(7)
_computing_cell_refinement
'CrysAlis RED (Oxford Diffraction, Poland Sp. z o.o)'
_computing_data_collection
'CrysAlis CCD (Oxford Diffraction, Poland Sp. z o.o)'
_computing_data_reduction
'CrysAlis RED (Oxford Diffraction, Poland Sp. z o.o)'
_computing_molecular_graphics    'SHELXL-NT V5.1, Bruker AXS 1999'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'KUMA KM4CCD \k-geometry diffractometr'
_diffrn_measurement_method       \w
_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  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0182
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            33149
_diffrn_reflns_theta_full        35.00
_diffrn_reflns_theta_max         35.00
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.564
_exptl_absorpt_correction_T_max  0.929
_exptl_absorpt_correction_T_min  0.861
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
XPREP-Brucker Analytical X-ray Systems, 1997
;
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.824
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.651
_refine_diff_density_min         -0.436
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         7401
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.0407
_refine_ls_R_factor_gt           0.0347
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0370P)^2^+0.9380P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0808
_refine_ls_wR_factor_ref         0.0830
_reflns_number_gt                6697
_reflns_number_total             7401
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b515789g.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'ANALYTICAL' changed
to 'analytical' 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_cell_volume        1734.3(6)
_cod_original_sg_symbol_Hall     '-P 2yn '
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7203178