#------------------------------------------------------------------------------
#$Date: 2016-03-24 01:30:03 +0200 (Thu, 24 Mar 2016) $
#$Revision: 179532 $
#$URL: svn://www.crystallography.net/cod/cif/4/50/01/4500129.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_4500129
loop_
_publ_author_name
'Bertolasi, Valerio'
'Gilli, Paola'
'Gilli, Gastone'
_publ_section_title
;
 Hydrogen Bonding and Electron Donor−Acceptor (EDA) Interactions
 Controlling the Crystal Packing of Picric Acid and Its Adducts with
 Nitrogen Bases. Their Rationalization in Terms of the pKaEqualization and
 Electron-Pair Saturation Concepts
;
_journal_issue                   7
_journal_name_full               'Crystal Growth & Design'
_journal_page_first              2724
_journal_paper_doi               10.1021/cg101007a
_journal_volume                  11
_journal_year                    2011
_chemical_formula_moiety         'C6 H2 N3 O7, C6 H8 N O'
_chemical_formula_sum            'C12 H10 N4 O8'
_chemical_formula_weight         338.24
_chemical_name_systematic
;
2-hydroxy-6-methylpyridinium picrate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 96.9655(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3174(2)
_cell_length_b                   15.2404(4)
_cell_length_c                   12.6802(4)
_cell_measurement_reflns_used    14432
_cell_measurement_temperature    295
_cell_measurement_theta_max      26.50
_cell_measurement_theta_min      3.11
_cell_volume                     1403.66(7)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEPIII (Burnett & Johnson, 1996)'
_computing_publication_material
'SHELXL-97 (Sheldrick, 1997), PARST (Nardelli, 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      295
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'φ scans and ω 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  0.0580
_diffrn_reflns_av_sigmaI/netI    0.0427
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            14432
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         26.50
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    0.138
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.601
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.500
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.075
_refine_ls_extinction_coef       0.089(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     258
_refine_ls_number_reflns         2797
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.0967
_refine_ls_R_factor_gt           0.0840
_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/[σ²(Fo²)+(0.1428P)²+0.7348P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2300
_refine_ls_wR_factor_ref         0.2433
_reflns_number_gt                2245
_reflns_number_total             2797
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            cg101007a_si_002.cif
_cod_data_source_block           (12)
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               4500129
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z'
'-x, -y, -z'
'x-1/2, -y-1/2, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
C1 C 0.6156(4) 0.20948(17) 0.8495(2) 0.0390(6) Uani 1 1 d
C2 C 0.5967(4) 0.14677(17) 0.9320(2) 0.0408(7) Uani 1 1 d
C3 C 0.5611(4) 0.16784(18) 1.0330(2) 0.0409(6) Uani 1 1 d
C4 C 0.5341(4) 0.25485(17) 1.0570(2) 0.0399(6) Uani 1 1 d
C5 C 0.5444(4) 0.32049(18) 0.9822(2) 0.0399(6) Uani 1 1 d
C6 C 0.5854(4) 0.29806(17) 0.8824(2) 0.0399(7) Uani 1 1 d
N1 N 0.6187(4) 0.05389(16) 0.9094(2) 0.0525(7) Uani 1 1 d
N2 N 0.4862(4) 0.27829(17) 1.16115(19) 0.0493(7) Uani 1 1 d
N3 N 0.5898(4) 0.36982(16) 0.8070(2) 0.0524(7) Uani 1 1 d
O1 O 0.6600(4) 0.18718(14) 0.76020(16) 0.0555(6) Uani 1 1 d
O2 O 0.5496(6) 0.02537(18) 0.8239(2) 0.0901(11) Uani 1 1 d
O3 O 0.7018(4) 0.00837(15) 0.9788(2) 0.0695(8) Uani 1 1 d
O4 O 0.4785(5) 0.22054(19) 1.2266(2) 0.0821(9) Uani 1 1 d
O5 O 0.4538(4) 0.35511(17) 1.1783(2) 0.0717(8) Uani 1 1 d
O6 O 0.6607(7) 0.3581(2) 0.7278(3) 0.1211(17) Uani 1 1 d
O7 O 0.5143(5) 0.43863(16) 0.8234(2) 0.0786(9) Uani 1 1 d
H3 H 0.549(5) 0.124(2) 1.082(3) 0.050(9) Uiso 1 1 d
H5 H 0.530(4) 0.383(2) 1.002(3) 0.044(8) Uiso 1 1 d
C7 C 0.7469(5) 0.1566(2) 0.5346(3) 0.0525(8) Uani 1 1 d
C8 C 0.7858(5) 0.1453(3) 0.4305(3) 0.0607(9) Uani 1 1 d
C9 C 0.7914(5) 0.0621(3) 0.3910(3) 0.0613(9) Uani 1 1 d
C10 C 0.7667(5) -0.0100(2) 0.4538(3) 0.0589(9) Uani 1 1 d
C11 C 0.7345(4) 0.0016(2) 0.5577(2) 0.0474(7) Uani 1 1 d
C12 C 0.7147(7) -0.0719(2) 0.6327(3) 0.0626(10) Uani 1 1 d
N4 N 0.7245(4) 0.08498(16) 0.5941(2) 0.0452(6) Uani 1 1 d
O8 O 0.7346(4) 0.23552(16) 0.5756(2) 0.0692(8) Uani 1 1 d
H4N H 0.693(5) 0.088(2) 0.657(3) 0.060(10) Uiso 1 1 d
H8O H 0.706(6) 0.233(3) 0.640(4) 0.080(13) Uiso 1 1 d
H8 H 0.794(6) 0.202(3) 0.391(3) 0.069(11) Uiso 1 1 d
H9 H 0.823(8) 0.053(4) 0.320(5) 0.114(18) Uiso 1 1 d
H10 H 0.794(6) -0.072(3) 0.426(4) 0.090(14) Uiso 1 1 d
H12A H 0.610(8) -0.068(3) 0.653(5) 0.094(17) Uiso 1 1 d
H12B H 0.796(7) -0.073(3) 0.699(5) 0.103(17) Uiso 1 1 d
H12C H 0.737(7) -0.126(4) 0.597(4) 0.090(14) Uiso 1 1 d
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O1 C1 C2 122.2(3)
O1 C1 C6 125.4(2)
C2 C1 C6 112.4(2)
C3 C2 C1 124.7(2)
C3 C2 N1 116.6(2)
C1 C2 N1 118.7(2)
C2 C3 C4 118.6(2)
C2 C3 H3 120(2)
C4 C3 H3 121(2)
C3 C4 C5 121.4(2)
C3 C4 N2 119.6(2)
C5 C4 N2 118.9(2)
C6 C5 C4 119.0(2)
C6 C5 H5 120.2(19)
C4 C5 H5 120.6(19)
C5 C6 C1 123.9(2)
C5 C6 N3 116.2(2)
C1 C6 N3 119.9(2)
O2 N1 O3 123.7(3)
O2 N1 C2 118.5(3)
O3 N1 C2 117.8(3)
O4 N2 O5 123.2(3)
O4 N2 C4 118.6(3)
O5 N2 C4 118.2(2)
O6 N3 O7 121.6(3)
O6 N3 C6 119.0(3)
O7 N3 C6 119.3(3)
O8 C7 N4 120.0(3)
O8 C7 C8 121.2(3)
N4 C7 C8 118.8(3)
C9 C8 C7 118.7(3)
C9 C8 H8 128(2)
C7 C8 H8 113(2)
C8 C9 C10 121.0(3)
C8 C9 H9 120(3)
C10 C9 H9 119(3)
C11 C10 C9 119.9(3)
C11 C10 H10 120(3)
C9 C10 H10 119(3)
N4 C11 C10 117.9(3)
N4 C11 C12 118.3(3)
C10 C11 C12 123.8(3)
C11 C12 H12A 108(4)
C11 C12 H12B 118(3)
H12A C12 H12B 103(5)
C11 C12 H12C 108(3)
H12A C12 H12C 114(5)
H12B C12 H12C 106(4)
C7 N4 C11 123.6(3)
C7 N4 H4N 123(3)
C11 N4 H4N 114(3)
C7 O8 H8O 112(3)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
C1 O1 1.262(3)
C1 C2 1.436(4)
C1 C6 1.438(4)
C2 C3 1.375(4)
C2 N1 1.457(4)
C3 C4 1.380(4)
C3 H3 0.93(4)
C4 C5 1.386(4)
C4 N2 1.452(3)
C5 C6 1.380(4)
C5 H5 0.99(4)
C6 N3 1.455(3)
N1 O2 1.219(4)
N1 O3 1.223(4)
N2 O4 1.216(4)
N2 O5 1.219(3)
N3 O6 1.199(4)
N3 O7 1.215(4)
C7 O8 1.317(4)
C7 N4 1.348(4)
C7 C8 1.396(4)
C8 C9 1.366(5)
C8 H8 1.00(4)
C9 C10 1.382(5)
C9 H9 0.97(7)
C10 C11 1.378(4)
C10 H10 1.04(5)
C11 N4 1.358(4)
C11 C12 1.486(5)
C12 H12A 0.84(6)
C12 H12B 0.97(6)
C12 H12C 0.97(6)
N4 H4N 0.86(4)
O8 H8O 0.87(5)
