# Electronic Supplementary Material (ESI) for CrystEngComm.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_ison2
_database_code_depnum_ccdc_archive 'CCDC 1862156'
_audit_update_record             
;
2018-08-15 deposited with the CCDC.
2018-12-20 downloaded from the CCDC.
;
_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        
;
4-pyridinecarboxamide
;
_chemical_name_common            isonicotinamide
_chemical_melting_point          '431 K'
_chemical_formula_moiety         'C6 H6 N2 O'
_chemical_formula_sum            'C6 H6 N2 O'
_chemical_formula_weight         122.13

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'

_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_H-M_alt        'P c a 21'
_space_group_name_Hall           'P 2c -2ac'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, z+1/2'
'-x+1/2, y, z+1/2'
'x+1/2, -y, z'

_cell_length_a                   9.8880(12)
_cell_length_b                   7.9929(9)
_cell_length_c                   15.1620(18)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     1198.3(2)
_cell_formula_units_Z            8
_cell_measurement_temperature    173(2)
_cell_measurement_reflns_used    7227
_cell_measurement_theta_min      2.69
_cell_measurement_theta_max      27.80

_exptl_crystal_description       block
_exptl_crystal_colour            colourless
_exptl_crystal_density_meas      'not measured'
_exptl_crystal_density_method    none
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_F_000             512
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.270
_exptl_crystal_size_min          0.200
_exptl_absorpt_coefficient_mu    0.096
_shelx_estimated_absorpt_T_min   0.962
_shelx_estimated_absorpt_T_max   0.981
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.862
_exptl_absorpt_correction_T_max  0.981
_exptl_absorpt_process_details   '(SADABS-2012/1, Bruker AXS)'
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      173(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   'sealed tube'
_diffrn_measurement_device_type  'Bruker Apex II Duo diffractometer'
_diffrn_measurement_method       'phi- and omega-scans of 0.50 deg.'
_diffrn_detector_area_resol_mean n/a
_diffrn_reflns_number            22107
_diffrn_reflns_av_unetI/netI     0.0254
_diffrn_reflns_av_R_equivalents  0.0464
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_theta_min         2.548
_diffrn_reflns_theta_max         27.959
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measured_fraction_theta_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_point_group_measured_fraction_full 0.999
_reflns_number_total             2870
_reflns_number_gt                2666
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.925
_reflns_Friedel_fraction_max     0.998
_reflns_Friedel_fraction_full    0.999

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       'Bruker 2013, APEX2, v2013.10-0.'
_computing_cell_refinement       'Program SAINT, v8.34A, Bruker AXS'
_computing_data_reduction        'Program SAINT, v8.34A, Bruker AXS'
_computing_structure_solution    'SHELXS (Sheldrick, 2012)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_molecular_graphics    
'POV-Ray in interface X-Seed (LJ Barbour, 1999)'
_computing_publication_material  'PLATON (Spek, 1990)'
_refine_special_details          ?
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.1094P)²+0.1804P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_abs_structure_details 
;
 The absolute structure could not be determined reliably due to the 
 absence of heavy atoms. Conflicting values for the Flack parameter
 resulted, viz. -0.261(999) by classical fit to all intensities and
 0.744(591) from Parsons' method determined using 1225 quotients 
 [(I+)-(I-)]/[(I+)+(I-)],(Parsons, Flack and Wagner, Acta Cryst. 
  B69 (2013) 249-259).
;
_chemical_absolute_configuration ?
_refine_ls_number_reflns         2870
_refine_ls_number_parameters     163
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0564
_refine_ls_R_factor_gt           0.0532
_refine_ls_wR_factor_ref         0.1455
_refine_ls_wR_factor_gt          0.1414
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_restrained_S_all      1.035
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

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_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
N1A N 0.3796(3) 0.4536(3) 0.5113(2) 0.0297(6) Uani 1 1 d . . . . .
N1B N 0.4060(3) 1.0462(3) 0.25297(19) 0.0289(6) Uani 1 1 d . . . . .
C2A C 0.2764(3) 0.5195(3) 0.4668(2) 0.0290(6) Uani 1 1 d . . . . .
H2A H 0.2161 0.4461 0.4372 0.035 Uiso 1 1 calc R U . . .
C2B C 0.5095(3) 0.9811(4) 0.2981(2) 0.0295(6) Uani 1 1 d . . . . .
H2B H 0.5695 1.0557 0.3273 0.035 Uiso 1 1 calc R U . . .
C3A C 0.2528(3) 0.6904(3) 0.46170(18) 0.0241(5) Uani 1 1 d . . . . .
H3A H 0.1770 0.7321 0.4300 0.029 Uiso 1 1 calc R U . . .
C3B C 0.5342(3) 0.8108(3) 0.30472(19) 0.0252(6) Uani 1 1 d . . . . .
H3B H 0.6098 0.7699 0.3368 0.030 Uiso 1 1 calc R U . . .
C4A C 0.3408(2) 0.7994(3) 0.50330(16) 0.0196(5) Uani 1 1 d . . . . .
C4B C 0.4453(2) 0.7013(3) 0.26306(15) 0.0181(5) Uani 1 1 d . . . . .
C5A C 0.4488(3) 0.7318(3) 0.55005(19) 0.0229(5) Uani 1 1 d . . . . .
H5A H 0.5109 0.8024 0.5801 0.027 Uiso 1 1 calc R U . . .
C5B C 0.3382(3) 0.7667(3) 0.21579(19) 0.0233(5) Uani 1 1 d . . . . .
H5B H 0.2761 0.6954 0.1862 0.028 Uiso 1 1 calc R U . . .
C6A C 0.4641(3) 0.5594(3) 0.5520(2) 0.0265(6) Uani 1 1 d . . . . .
H6A H 0.5383 0.5141 0.5838 0.032 Uiso 1 1 calc R U . . .
C6B C 0.3237(3) 0.9399(3) 0.2126(2) 0.0282(6) Uani 1 1 d . . . . .
H6B H 0.2504 0.9846 0.1796 0.034 Uiso 1 1 calc R U . . .
C7A C 0.3146(3) 0.9844(3) 0.49890(18) 0.0222(5) Uani 1 1 d . . . . .
C7B C 0.4724(3) 0.5152(3) 0.26915(18) 0.0218(5) Uani 1 1 d . . . . .
O8A O 0.1991(2) 1.0371(3) 0.48602(16) 0.0318(5) Uani 1 1 d . . . . .
O8B O 0.58733(18) 0.4626(2) 0.28113(15) 0.0293(5) Uani 1 1 d . . . . .
N9A N 0.4198(2) 1.0848(3) 0.5114(2) 0.0286(6) Uani 1 1 d . . . . .
H9A2 H 0.4087 1.1940 0.5107 0.034 Uiso 1 1 calc R U . . .
H9A1 H 0.5007 1.0421 0.5204 0.034 Uiso 1 1 calc R U . . .
N9B N 0.3652(2) 0.4154(3) 0.25864(17) 0.0260(5) Uani 1 1 d . . . . .
H9B2 H 0.3753 0.3060 0.2602 0.031 Uiso 1 1 calc R U . . .
H9B1 H 0.2845 0.4589 0.2502 0.031 Uiso 1 1 calc R U . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
N1A C2A 1.332(4) . ?
N1A C6A 1.340(4) . ?
N1B C6B 1.326(4) . ?
N1B C2B 1.337(4) . ?
C2A C3A 1.388(4) . ?
C2A H2A 0.9500 . ?
C2B C3B 1.387(4) . ?
C2B H2B 0.9500 . ?
C3A C4A 1.384(3) . ?
C3A H3A 0.9500 . ?
C3B C4B 1.392(3) . ?
C3B H3B 0.9500 . ?
C4A C5A 1.391(4) . ?
C4A C7A 1.503(3) . ?
C4B C5B 1.382(4) . ?
C4B C7B 1.514(3) . ?
C5A C6A 1.386(3) . ?
C5A H5A 0.9500 . ?
C5B C6B 1.393(3) . ?
C5B H5B 0.9500 . ?
C6A H6A 0.9500 . ?
C6B H6B 0.9500 . ?
C7A O8A 1.232(3) . ?
C7A N9A 1.327(3) . ?
C7B O8B 1.225(3) . ?
C7B N9B 1.336(3) . ?
N9A H9A2 0.8800 . ?
N9A H9A1 0.8800 . ?
N9B H9B2 0.8800 . ?
N9B H9B1 0.8800 . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C2A N1A C6A 117.4(2) . . ?
C6B N1B C2B 117.2(2) . . ?
N1A C2A C3A 123.2(3) . . ?
N1A C2A H2A 118.4 . . ?
C3A C2A H2A 118.4 . . ?
N1B C2B C3B 123.6(3) . . ?
N1B C2B H2B 118.2 . . ?
C3B C2B H2B 118.2 . . ?
C4A C3A C2A 119.2(2) . . ?
C4A C3A H3A 120.4 . . ?
C2A C3A H3A 120.4 . . ?
C2B C3B C4B 118.3(2) . . ?
C2B C3B H3B 120.9 . . ?
C4B C3B H3B 120.9 . . ?
C3A C4A C5A 118.1(2) . . ?
C3A C4A C7A 119.4(2) . . ?
C5A C4A C7A 122.5(2) . . ?
C5B C4B C3B 118.8(2) . . ?
C5B C4B C7B 122.6(2) . . ?
C3B C4B C7B 118.6(2) . . ?
C6A C5A C4A 118.7(2) . . ?
C6A C5A H5A 120.6 . . ?
C4A C5A H5A 120.6 . . ?
C4B C5B C6B 118.2(2) . . ?
C4B C5B H5B 120.9 . . ?
C6B C5B H5B 120.9 . . ?
N1A C6A C5A 123.4(3) . . ?
N1A C6A H6A 118.3 . . ?
C5A C6A H6A 118.3 . . ?
N1B C6B C5B 123.9(3) . . ?
N1B C6B H6B 118.0 . . ?
C5B C6B H6B 118.0 . . ?
O8A C7A N9A 122.8(2) . . ?
O8A C7A C4A 120.2(2) . . ?
N9A C7A C4A 116.9(2) . . ?
O8B C7B N9B 123.2(2) . . ?
O8B C7B C4B 120.7(2) . . ?
N9B C7B C4B 116.0(2) . . ?
C7A N9A H9A2 120.0 . . ?
C7A N9A H9A1 120.0 . . ?
H9A2 N9A H9A1 120.0 . . ?
C7B N9B H9B2 120.0 . . ?
C7B N9B H9B1 120.0 . . ?
H9B2 N9B H9B1 120.0 . . ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C6A N1A C2A C3A -0.6(5) . . . . ?
C6B N1B C2B C3B -0.1(5) . . . . ?
N1A C2A C3A C4A 1.0(5) . . . . ?
N1B C2B C3B C4B -0.9(5) . . . . ?
C2A C3A C4A C5A -1.1(4) . . . . ?
C2A C3A C4A C7A -179.2(2) . . . . ?
C2B C3B C4B C5B 1.2(4) . . . . ?
C2B C3B C4B C7B 179.4(2) . . . . ?
C3A C4A C5A C6A 0.7(4) . . . . ?
C7A C4A C5A C6A 178.8(2) . . . . ?
C3B C4B C5B C6B -0.4(4) . . . . ?
C7B C4B C5B C6B -178.6(2) . . . . ?
C2A N1A C6A C5A 0.2(5) . . . . ?
C4A C5A C6A N1A -0.3(4) . . . . ?
C2B N1B C6B C5B 0.9(5) . . . . ?
C4B C5B C6B N1B -0.6(4) . . . . ?
C3A C4A C7A O8A 24.2(4) . . . . ?
C5A C4A C7A O8A -153.9(3) . . . . ?
C3A C4A C7A N9A -157.3(3) . . . . ?
C5A C4A C7A N9A 24.7(4) . . . . ?
C5B C4B C7B O8B 152.6(3) . . . . ?
C3B C4B C7B O8B -25.6(4) . . . . ?
C5B C4B C7B N9B -25.9(4) . . . . ?
C3B C4B C7B N9B 155.9(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
N9A H9A2 N1A 0.88 2.09 2.974(3) 178.8 1_565
N9A H9A1 O8A 0.88 2.13 2.954(3) 156.3 4_575
N9B H9B2 N1B 0.88 2.10 2.979(3) 175.2 1_545
N9B H9B1 O8B 0.88 2.10 2.936(3) 158.0 4_465

_refine_diff_density_max         0.630
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.075


_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: chloroform'
