#------------------------------------------------------------------------------
#$Date: 2025-08-21 03:19:08 +0300 (Thu, 21 Aug 2025) $
#$Revision: 301842 $
#$URL: file:///home/coder/svn-repositories/cod/cif/4/50/56/4505656.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_4505656
loop_
_publ_author_name
'Aakeröy, Christer B.'
'Beatty, Alicia M.'
'Helfrich, Brian A.'
'Nieuwenhuyzen, Mark'
_publ_section_title
;
 Do Polymorphic Compounds Make Good Cocrystallizing Agents? A Structural
 Case Study that Demonstrates the Importance of Synthon Flexibility
;
_journal_issue                   2
_journal_name_full               'Crystal Growth & Design'
_journal_page_first              159
_journal_paper_doi               10.1021/cg025593z
_journal_volume                  3
_journal_year                    2003
_chemical_formula_sum            'C6 H6 N2 O'
_chemical_formula_weight         122.13
_chemical_melting_point          429.0(10)
_chemical_name_systematic
; 
 isonicotinamide : form II
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 105.586(17)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.735(3)
_cell_length_b                   7.9976(18)
_cell_length_c                   9.885(3)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      12.74
_cell_measurement_theta_min      5.40
_cell_volume                     1198.2(5)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_method       '2θ/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  0.0151
_diffrn_reflns_av_sigmaI/netI    0.0171
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1680
_diffrn_reflns_theta_full        22.48
_diffrn_reflns_theta_max         22.48
_diffrn_reflns_theta_min         1.34
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular prisms'
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.179
_refine_diff_density_min         -0.284
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    'riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         1565
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0528
_refine_ls_R_factor_gt           0.0437
_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)+(0.0746P)²+0.4380P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1185
_refine_ls_wR_factor_ref         0.1252
_reflns_number_gt                1295
_reflns_number_total             1565
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg025593zsi20021231_034111.cif
_cod_data_source_block           1b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '428-430K' was changed to '429.0(10)'
- the average value was taken and precision was
estimated.

'_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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4505656
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'
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
_atom_site_refinement_flags
N1 N 0.36889(13) 0.7957(2) -0.0420(2) 0.0326(5) Uani 1 1 d .
C2 C 0.32894(16) 0.6889(3) -0.1423(2) 0.0314(6) Uani 1 1 d .
H2 H 0.2982 0.7454 -0.2330 0.038 Uiso 1 1 d R
C3 C 0.33297(16) 0.5162(3) -0.1258(2) 0.0271(6) Uani 1 1 d .
H3 H 0.3002 0.4445 -0.2037 0.032 Uiso 1 1 d R
C4 C 0.37976(15) 0.4504(3) 0.0019(2) 0.0239(6) Uani 1 1 d .
C5 C 0.42040(16) 0.5610(3) 0.1075(2) 0.0297(6) Uani 1 1 d .
H5 H 0.4594 0.5162 0.1976 0.036 Uiso 1 1 d R
C6 C 0.41387(17) 0.7306(3) 0.0807(2) 0.0322(6) Uani 1 1 d .
H6 H 0.4393 0.8117 0.1566 0.039 Uiso 1 1 d R
N7 N 0.37609(13) 0.1647(2) -0.08087(19) 0.0300(5) Uani 1 1 d .
H71 H 0.3799 0.0458 -0.0623 0.036 Uiso 1 1 d R
H72 H 0.3810 0.2155 -0.1629 0.036 Uiso 1 1 d R
O7 O 0.39822(11) 0.2121(2) 0.15103(15) 0.0353(5) Uani 1 1 d .
C7 C 0.38604(15) 0.2651(3) 0.0300(2) 0.0254(6) Uani 1 1 d .
N11 N 0.12732(13) 0.2970(2) 0.0663(2) 0.0338(5) Uani 1 1 d .
C12 C 0.16832(16) 0.1909(3) 0.0008(2) 0.0306(6) Uani 1 1 d .
H12 H 0.2017 0.2521 -0.0644 0.037 Uiso 1 1 d R
C13 C 0.16680(16) 0.0192(3) 0.0153(2) 0.0276(6) Uani 1 1 d .
H13 H 0.1991 -0.0551 -0.0355 0.033 Uiso 1 1 d R
C14 C 0.11993(14) -0.0487(3) 0.1028(2) 0.0240(6) Uani 1 1 d .
C15 C 0.07797(16) 0.0601(3) 0.1729(2) 0.0289(6) Uani 1 1 d .
H15 H 0.0400 0.0101 0.2404 0.035 Uiso 1 1 d R
C16 C 0.08239(17) 0.2294(3) 0.1505(2) 0.0343(6) Uani 1 1 d .
H16 H 0.0611 0.3119 0.2079 0.041 Uiso 1 1 d R
N17 N 0.12957(13) -0.3343(2) 0.02844(19) 0.0328(5) Uani 1 1 d .
H171 H 0.1206 -0.4520 0.0401 0.039 Uiso 1 1 d R
H172 H 0.1190 -0.2882 -0.0642 0.039 Uiso 1 1 d R
O17 O 0.10352(11) -0.2866(2) 0.23856(16) 0.0366(5) Uani 1 1 d .
C17 C 0.11631(15) -0.2335(3) 0.1278(2) 0.0255(6) Uani 1 1 d .
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
N1 0.0430(12) 0.0230(11) 0.0356(12) -0.0007(10) 0.0169(10) -0.0005(10)
C2 0.0394(14) 0.0288(14) 0.0273(13) 0.0043(11) 0.0112(11) 0.0036(12)
C3 0.0350(13) 0.0239(13) 0.0223(12) -0.0027(10) 0.0077(10) -0.0001(10)
C4 0.0319(13) 0.0220(13) 0.0210(12) 0.0001(10) 0.0128(10) 0.0005(10)
C5 0.0390(14) 0.0290(14) 0.0214(12) -0.0015(11) 0.0088(10) -0.0026(11)
C6 0.0436(15) 0.0252(14) 0.0304(14) -0.0064(11) 0.0144(12) -0.0050(11)
N7 0.0526(13) 0.0196(10) 0.0214(10) 0.0015(9) 0.0160(9) -0.0011(9)
O7 0.0579(11) 0.0293(10) 0.0206(9) 0.0043(7) 0.0137(8) 0.0017(8)
C7 0.0336(14) 0.0225(13) 0.0218(13) 0.0010(10) 0.0101(10) -0.0008(10)
N11 0.0477(13) 0.0222(11) 0.0311(12) -0.0004(9) 0.0099(10) 0.0002(10)
C12 0.0393(14) 0.0268(14) 0.0269(13) 0.0010(11) 0.0110(11) -0.0040(11)
C13 0.0349(14) 0.0251(14) 0.0240(12) -0.0013(10) 0.0101(10) 0.0010(11)
C14 0.0321(13) 0.0235(13) 0.0161(11) -0.0008(10) 0.0056(10) -0.0003(10)
C15 0.0391(14) 0.0257(14) 0.0237(12) -0.0011(10) 0.0116(11) 0.0019(11)
C16 0.0474(16) 0.0279(15) 0.0292(13) -0.0041(11) 0.0133(12) 0.0051(12)
N17 0.0593(14) 0.0193(11) 0.0229(10) 0.0005(9) 0.0165(9) 0.0006(10)
O17 0.0601(12) 0.0297(10) 0.0244(9) 0.0028(8) 0.0191(8) -0.0031(9)
C17 0.0356(14) 0.0234(13) 0.0173(12) 0.0019(10) 0.0067(10) -0.0005(10)
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
C2 N1 C6 117.1(2)
N1 C2 C3 123.5(2)
C4 C3 C2 118.8(2)
C3 C4 C5 118.0(2)
C3 C4 C7 122.4(2)
C5 C4 C7 119.6(2)
C6 C5 C4 119.1(2)
N1 C6 C5 123.5(2)
O7 C7 N7 122.9(2)
O7 C7 C4 120.1(2)
N7 C7 C4 116.98(19)
C12 N11 C16 116.7(2)
N11 C12 C13 123.9(2)
C12 C13 C14 118.7(2)
C15 C14 C13 118.1(2)
C15 C14 C17 119.4(2)
C13 C14 C17 122.5(2)
C16 C15 C14 119.0(2)
N11 C16 C15 123.6(2)
O17 C17 N17 122.6(2)
O17 C17 C14 120.3(2)
N17 C17 C14 117.04(19)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
N1 C2 1.332(3)
N1 C6 1.334(3)
C2 C3 1.391(3)
C3 C4 1.383(3)
C4 C5 1.387(3)
C4 C7 1.506(3)
C5 C6 1.381(3)
N7 C7 1.333(3)
O7 C7 1.235(3)
N11 C12 1.334(3)
N11 C16 1.342(3)
C12 C13 1.381(3)
C13 C14 1.389(3)
C14 C15 1.385(3)
C14 C17 1.503(3)
C15 C16 1.377(4)
N17 C17 1.330(3)
O17 C17 1.240(3)
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
N7 H71 N1 0.97 2.02 2.982(3) 171.4 1_545
N7 H72 O7 0.93 2.01 2.934(2) 170.4 4_565
N17 H171 N11 0.96 2.02 2.974(3) 168.7 1_545
N17 H172 O17 0.96 1.99 2.947(3) 174.0 4
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 ChemSpider 14346
2 PubChem 67631168
