# Supplementary Material (ESI) for CrystEngComm
# This journal is (c) The Royal Society of Chemistry 2010
data_global
_journal_name_full               CrystEngComm

_journal_coden_Cambridge         1350

_publ_contact_author_name        'Andreas Lemmerer'
_publ_contact_author_email       ANDREAS.LEMMERER@GMAIL.COM

_publ_section_title              
;
The co-crystal of two GRAS substances: (citric acid).(nicotinamide).
Formation of three hydrogen bonding heterosynthons in one co-crystal.
;
_publ_requested_category         FO
loop_
_publ_author_name
'Andreas Lemmerer'
'Joel Bernstein'

# Attachment 'Citric_Nico_rev.cif'

#\#CIF_1.1

# CIF produced by WinGX routine CIF_UPDATE
# Created on 2010-03-14 at 08:22:06
# Using CIFtbx version 2.6.2 16 Jun 1998

# Dictionary name : cif_core.dic
# Dictionary vers : 2.3
# Request file : c:\wingx\files\archive.dat
# CIF files read : 8anp102s smart

data_1
_database_code_depnum_ccdc_archive 'CCDC 761020'
#TrackingRef 'Citric_Nico_rev.cif'

_audit_creation_date             2010-03-14T08:22:06-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic

#----------------------------------------------------------------------------#
# CHEMICAL INFORMATION #
#----------------------------------------------------------------------------#

_chemical_name_systematic        
;
bis(nicotinamide).(citric acid)
;
_chemical_formula_moiety         'C6 H7.70 O7, C6 H6.30 N2 O, C6 H6 N2 O'
_chemical_formula_sum            'C18 H20 N4 O9'
_chemical_formula_weight         436.38

#----------------------------------------------------------------------------#
# UNIT CELL INFORMATION #
#----------------------------------------------------------------------------#

_symmetry_cell_setting           Triclinic
_symmetry_space_group_name_H-M   P-1
_symmetry_space_group_name_Hall  '-P 1'
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   5.3769(4)
_cell_length_b                   11.3121(8)
_cell_length_c                   16.9006(11)
_cell_angle_alpha                101.325(3)
_cell_angle_beta                 96.441(3)
_cell_angle_gamma                103.112(3)
_cell_volume                     968.36(12)
_cell_formula_units_Z            2
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    2852
_cell_measurement_theta_min      2.49
_cell_measurement_theta_max      28.19

#----------------------------------------------------------------------------#
# CRYSTAL INFORMATION #
#----------------------------------------------------------------------------#

_exptl_crystal_description       needle
_exptl_crystal_colour            colourless
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.14
_exptl_crystal_density_meas      0
_exptl_crystal_density_diffrn    1.497
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             456
loop_
_exptl_crystal_face_index_h
_exptl_crystal_face_index_k
_exptl_crystal_face_index_l
_exptl_crystal_face_perp_dist
0 1 3 0.08
0 -1 -3 0.08
-2 -1 -5 0.25
0 -1 2 0.07
0 1 -2 0.07
3 -1 -1 0.2

_exptl_special_details           
;
Numerical integration absorption corrections based on indexed
crystal faces
were applied using the XPREP routine (Bruker, 1999)

;

#----------------------------------------------------------------------------#
# ABSORPTION CORRECTION #
#----------------------------------------------------------------------------#

_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 1999)'
_exptl_absorpt_correction_T_min  0.94
_exptl_absorpt_correction_T_max  0.99

#----------------------------------------------------------------------------#
# DATA COLLECTION #
#----------------------------------------------------------------------------#

_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  'Bruker SMART 1K CCD area detector'
_diffrn_measurement_method       'ω scans'
_diffrn_standards_number         0
_diffrn_reflns_av_R_equivalents  0.0282
_diffrn_reflns_av_unetI/netI     0.0418
_diffrn_reflns_number            11854
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_theta_min         1.9
_diffrn_reflns_theta_max         28
_diffrn_reflns_theta_full        28
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_reflns_number_total             4638
_reflns_number_gt                3002
_reflns_threshold_expression     >2sigma(I)

#----------------------------------------------------------------------------#
# COMPUTER PROGRAMS USED #
#----------------------------------------------------------------------------#

_computing_data_collection       'Bruker SMART, Bruker (1998)'
_computing_cell_refinement       'Bruker SAINT+, Bruker (1999)'
_computing_data_reduction        'Bruker SAINT+'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics    
;
Ortep-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 1999)
;
_computing_publication_material  
;
WinGX publication routines (Farrugia, 1999) and PLATON (Spek, 2003)
;

#----------------------------------------------------------------------------#
# REFINEMENT INFORMATION #
#----------------------------------------------------------------------------#

_refine_special_details          
;
Refinement of F² against ALL reflections. The weighted R-factor wR and
goodness of fit S are based on F², conventional R-factors R are based
on F, with F set to zero for negative F². The threshold expression of
F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is
not relevant to the choice of reflections for refinement. R-factors based
on F² are statistically about twice as large as those based on F, and R-
factors based on ALL data will be even larger.
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0665P)²+0.0456P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_number_reflns         4638
_refine_ls_number_parameters     308
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0791
_refine_ls_R_factor_gt           0.0428
_refine_ls_wR_factor_ref         0.1261
_refine_ls_wR_factor_gt          0.1086
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_restrained_S_all      1.034
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_diff_density_max         0.236
_refine_diff_density_min         -0.27
_refine_diff_density_rms         0.056

#----------------------------------------------------------------------------#
# ATOMIC TYPES, COORDINATES AND THERMAL PARAMETERS #
#----------------------------------------------------------------------------#

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 0 '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 0.006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

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
_atom_site_disorder_assembly
_atom_site_disorder_group
C1 C -0.0814(3) 0.26792(15) 0.92837(10) 0.0311(4) Uani 1 1 d . . .
C2 C 0.1313(3) 0.36812(16) 0.93762(10) 0.0335(4) Uani 1 1 d . . .
H2 H 0.288 0.3648 0.9654 0.04 Uiso 1 1 calc R . .
C3 C -0.1009(4) 0.47139(17) 0.86720(11) 0.0375(4) Uani 1 1 d . . .
H3B H -0.1072 0.5403 0.8454 0.045 Uiso 1 1 calc R . .
C4 C -0.3219(4) 0.37731(18) 0.85514(11) 0.0396(4) Uani 1 1 d . . .
H4 H -0.4746 0.3824 0.8258 0.048 Uiso 1 1 calc R . .
C5 C -0.3147(4) 0.27432(17) 0.88733(11) 0.0361(4) Uani 1 1 d . . .
H5A H -0.4637 0.2105 0.8815 0.043 Uiso 1 1 calc R . .
C6 C -0.0493(3) 0.15586(16) 0.95881(11) 0.0336(4) Uani 1 1 d . . .
N1 N -0.2303(4) 0.10686(17) 0.99850(12) 0.0503(5) Uani 1 1 d . . .
H1A H -0.358(5) 0.146(2) 1.0117(14) 0.06 Uiso 1 1 d . . .
H1S H -0.212(5) 0.045(2) 1.0189(14) 0.06 Uiso 1 1 d . . .
N2 N 0.1238(3) 0.46873(13) 0.90893(9) 0.0357(4) Uani 1 1 d . . .
C7 C -0.0875(3) 0.75233(16) 0.40475(10) 0.0333(4) Uani 1 1 d . . .
C8 C 0.0195(4) 0.76038(17) 0.48479(11) 0.0356(4) Uani 1 1 d . . .
H8 H -0.0184 0.8173 0.5264 0.043 Uiso 1 1 calc R . .
C9 C 0.2267(4) 0.60877(19) 0.44572(12) 0.0470(5) Uani 1 1 d . . .
H9 H 0.3336 0.5594 0.4596 0.056 Uiso 1 1 calc R . .
C10 C 0.1294(5) 0.5941(2) 0.36445(13) 0.0583(6) Uani 1 1 d . . .
H10A H 0.1698 0.5359 0.3242 0.07 Uiso 1 1 calc R . .
C11 C -0.0289(4) 0.66718(19) 0.34390(12) 0.0502(5) Uani 1 1 d . . .
H11 H -0.0959 0.6593 0.2894 0.06 Uiso 1 1 calc R . .
C12 C -0.2595(3) 0.83133(16) 0.38274(10) 0.0341(4) Uani 1 1 d . . .
N3 N -0.3351(4) 0.90242(17) 0.44235(11) 0.0482(5) Uani 1 1 d . . .
H3A H -0.293(4) 0.904(2) 0.4961(15) 0.058 Uiso 1 1 d . . .
H3S H -0.453(5) 0.943(2) 0.4299(14) 0.058 Uiso 1 1 d . . .
N4 N 0.1740(3) 0.69041(15) 0.50469(10) 0.0384(4) Uani 1 1 d . . .
H7B H 0.259(17) 0.704(8) 0.557(8) 0.046 Uiso 0.30(7) 1 d P A 2
C13 C 0.4992(3) 0.67630(16) 0.82994(10) 0.0305(4) Uani 1 1 d . . .
C14 C 0.6407(3) 0.80151(15) 0.81906(10) 0.0300(4) Uani 1 1 d . . .
H14A H 0.7621 0.8455 0.8686 0.036 Uiso 1 1 calc R . .
H14B H 0.5172 0.8503 0.8107 0.036 Uiso 1 1 calc R . .
C15 C 0.7863(3) 0.79074(15) 0.74727(10) 0.0278(4) Uani 1 1 d . . .
C16 C 0.9277(3) 0.92038(16) 0.73506(11) 0.0330(4) Uani 1 1 d . . .
H16A H 1.015 0.9726 0.788 0.04 Uiso 1 1 calc R . .
H16B H 1.0594 0.9093 0.7015 0.04 Uiso 1 1 calc R . .
C17 C 0.7550(3) 0.98736(15) 0.69599(10) 0.0325(4) Uani 1 1 d . . .
C18 C 0.6127(3) 0.72005(15) 0.66574(10) 0.0301(4) Uani 1 1 d . . .
O1 O 0.1353(3) 0.11236(12) 0.94546(9) 0.0456(4) Uani 1 1 d . . .
O2 O -0.3262(3) 0.82955(13) 0.30994(7) 0.0456(3) Uani 1 1 d . . .
O3 O 0.4524(3) 0.67952(12) 0.90577(7) 0.0398(3) Uani 1 1 d . . .
H3 H 0.340(4) 0.595(2) 0.9072(13) 0.06 Uiso 1 1 d . . .
O4 O 0.4343(3) 0.58282(12) 0.77615(8) 0.0430(3) Uani 1 1 d . . .
O5 O 0.6414(3) 1.05013(13) 0.74750(8) 0.0463(4) Uani 1 1 d . . .
H5 H 0.530(5) 1.089(2) 0.7229(16) 0.07 Uiso 1 1 d . . .
O6 O 0.7223(3) 0.98267(12) 0.62256(7) 0.0426(3) Uani 1 1 d . . .
O7 O 0.3860(2) 0.74422(12) 0.65616(8) 0.0362(3) Uani 1 1 d . . .
H7A H 0.311(8) 0.720(3) 0.601(4) 0.054 Uiso 0.70(7) 1 d P A 1
O8 O 0.6940(3) 0.65693(13) 0.61330(8) 0.0467(4) Uani 1 1 d . . .
O10 O 0.9768(2) 0.72811(12) 0.76681(8) 0.0376(3) Uani 1 1 d . . .
H10 H 1.042(5) 0.703(2) 0.7268(14) 0.056 Uiso 1 1 d . . .


#----------------------------------------------------------------------------#
# MOLECULAR GEOMETRY #
#----------------------------------------------------------------------------#

_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
C1 C2 1.385(2) . ?
C1 C5 1.388(3) . ?
C1 C6 1.496(2) . ?
C2 N2 1.329(2) . ?
C2 H2 0.93 . ?
C3 N2 1.339(2) . ?
C3 C4 1.368(3) . ?
C3 H3B 0.93 . ?
C4 C5 1.385(3) . ?
C4 H4 0.93 . ?
C5 H5A 0.93 . ?
C6 O1 1.227(2) . ?
C6 N1 1.324(2) . ?
N1 H1A 0.93(2) . ?
N1 H1S 0.86(3) . ?
C7 C11 1.381(3) . ?
C7 C8 1.387(2) . ?
C7 C12 1.490(2) . ?
C8 N4 1.330(2) . ?
C8 H8 0.93 . ?
C9 N4 1.322(3) . ?
C9 C10 1.378(3) . ?
C9 H9 0.93 . ?
C10 C11 1.376(3) . ?
C10 H10A 0.93 . ?
C11 H11 0.93 . ?
C12 O2 1.237(2) . ?
C12 N3 1.322(2) . ?
N3 H3A 0.91(2) . ?
N3 H3S 0.89(3) . ?
N4 H7B 0.91(14) . ?
C13 O4 1.204(2) . ?
C13 O3 1.329(2) . ?
C13 C14 1.505(2) . ?
C14 C15 1.516(2) . ?
C14 H14A 0.97 . ?
C14 H14B 0.97 . ?
C15 O10 1.4164(19) . ?
C15 C18 1.533(2) . ?
C15 C16 1.556(2) . ?
C16 C17 1.500(2) . ?
C16 H16A 0.97 . ?
C16 H16B 0.97 . ?
C17 O6 1.223(2) . ?
C17 O5 1.307(2) . ?
C18 O8 1.211(2) . ?
C18 O7 1.308(2) . ?
O3 H3 1.01(2) . ?
O5 H5 0.93(3) . ?
O7 H7A 0.94(7) . ?
O10 H10 0.83(2) . ?

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
C2 C1 C5 117.71(16) . . ?
C2 C1 C6 119.46(16) . . ?
C5 C1 C6 122.76(16) . . ?
N2 C2 C1 123.61(17) . . ?
N2 C2 H2 118.2 . . ?
C1 C2 H2 118.2 . . ?
N2 C3 C4 122.93(17) . . ?
N2 C3 H3B 118.5 . . ?
C4 C3 H3B 118.5 . . ?
C3 C4 C5 118.98(17) . . ?
C3 C4 H4 120.5 . . ?
C5 C4 H4 120.5 . . ?
C4 C5 C1 118.92(17) . . ?
C4 C5 H5A 120.5 . . ?
C1 C5 H5A 120.5 . . ?
O1 C6 N1 123.11(17) . . ?
O1 C6 C1 120.24(15) . . ?
N1 C6 C1 116.64(16) . . ?
C6 N1 H1A 120.6(14) . . ?
C6 N1 H1S 118.4(16) . . ?
H1A N1 H1S 120(2) . . ?
C2 N2 C3 117.78(15) . . ?
C11 C7 C8 117.55(16) . . ?
C11 C7 C12 119.69(16) . . ?
C8 C7 C12 122.76(16) . . ?
N4 C8 C7 122.96(17) . . ?
N4 C8 H8 118.5 . . ?
C7 C8 H8 118.5 . . ?
N4 C9 C10 122.51(19) . . ?
N4 C9 H9 118.7 . . ?
C10 C9 H9 118.7 . . ?
C11 C10 C9 118.73(19) . . ?
C11 C10 H10A 120.6 . . ?
C9 C10 H10A 120.6 . . ?
C10 C11 C7 119.55(18) . . ?
C10 C11 H11 120.2 . . ?
C7 C11 H11 120.2 . . ?
O2 C12 N3 121.86(17) . . ?
O2 C12 C7 119.64(16) . . ?
N3 C12 C7 118.49(15) . . ?
C12 N3 H3A 123.6(15) . . ?
C12 N3 H3S 119.2(15) . . ?
H3A N3 H3S 117(2) . . ?
C9 N4 C8 118.70(17) . . ?
C9 N4 H7B 119(5) . . ?
C8 N4 H7B 122(5) . . ?
O4 C13 O3 123.20(16) . . ?
O4 C13 C14 124.13(15) . . ?
O3 C13 C14 112.68(14) . . ?
C13 C14 C15 112.38(13) . . ?
C13 C14 H14A 109.1 . . ?
C15 C14 H14A 109.1 . . ?
C13 C14 H14B 109.1 . . ?
C15 C14 H14B 109.1 . . ?
H14A C14 H14B 107.9 . . ?
O10 C15 C14 105.99(13) . . ?
O10 C15 C18 110.38(13) . . ?
C14 C15 C18 113.46(14) . . ?
O10 C15 C16 107.83(13) . . ?
C14 C15 C16 112.27(13) . . ?
C18 C15 C16 106.81(13) . . ?
C17 C16 C15 114.70(14) . . ?
C17 C16 H16A 108.6 . . ?
C15 C16 H16A 108.6 . . ?
C17 C16 H16B 108.6 . . ?
C15 C16 H16B 108.6 . . ?
H16A C16 H16B 107.6 . . ?
O6 C17 O5 123.22(16) . . ?
O6 C17 C16 122.93(16) . . ?
O5 C17 C16 113.86(15) . . ?
O8 C18 O7 124.51(16) . . ?
O8 C18 C15 120.96(15) . . ?
O7 C18 C15 114.21(14) . . ?
C13 O3 H3 108.5(12) . . ?
C17 O5 H5 113.7(15) . . ?
C18 O7 H7A 110(2) . . ?
C15 O10 H10 112.3(17) . . ?

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
C5 C1 C2 N2 -0.5(3) . . . . ?
C6 C1 C2 N2 176.56(15) . . . . ?
N2 C3 C4 C5 0.0(3) . . . . ?
C3 C4 C5 C1 -2.2(3) . . . . ?
C2 C1 C5 C4 2.4(2) . . . . ?
C6 C1 C5 C4 -174.56(16) . . . . ?
C2 C1 C6 O1 -44.5(2) . . . . ?
C5 C1 C6 O1 132.42(19) . . . . ?
C2 C1 C6 N1 136.74(19) . . . . ?
C5 C1 C6 N1 -46.4(2) . . . . ?
C1 C2 N2 C3 -1.6(3) . . . . ?
C4 C3 N2 C2 1.9(3) . . . . ?
C11 C7 C8 N4 0.1(3) . . . . ?
C12 C7 C8 N4 -179.72(17) . . . . ?
N4 C9 C10 C11 0.0(4) . . . . ?
C9 C10 C11 C7 -0.4(4) . . . . ?
C8 C7 C11 C10 0.4(3) . . . . ?
C12 C7 C11 C10 -179.8(2) . . . . ?
C11 C7 C12 O2 -7.6(3) . . . . ?
C8 C7 C12 O2 172.19(17) . . . . ?
C11 C7 C12 N3 172.87(19) . . . . ?
C8 C7 C12 N3 -7.3(3) . . . . ?
C10 C9 N4 C8 0.5(3) . . . . ?
C7 C8 N4 C9 -0.5(3) . . . . ?
O4 C13 C14 C15 -23.1(2) . . . . ?
O3 C13 C14 C15 156.97(14) . . . . ?
C13 C14 C15 O10 -63.69(17) . . . . ?
C13 C14 C15 C18 57.60(18) . . . . ?
C13 C14 C15 C16 178.82(13) . . . . ?
O10 C15 C16 C17 166.99(14) . . . . ?
C14 C15 C16 C17 -76.63(18) . . . . ?
C18 C15 C16 C17 48.35(18) . . . . ?
C15 C16 C17 O6 -95.4(2) . . . . ?
C15 C16 C17 O5 84.02(18) . . . . ?
O10 C15 C18 O8 -28.4(2) . . . . ?
C14 C15 C18 O8 -147.17(16) . . . . ?
C16 C15 C18 O8 88.59(18) . . . . ?
O10 C15 C18 O7 157.89(14) . . . . ?
C14 C15 C18 O7 39.10(19) . . . . ?
C16 C15 C18 O7 -85.14(17) . . . . ?

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
N1 H1S O1 0.86(3) 2.09(3) 2.949(2) 171(2) 2_557
N1 H1A O3 0.93(2) 2.37(2) 3.177(2) 145.6(19) 2_567
N3 H3S O6 0.89(3) 2.04(3) 2.916(2) 168(2) 2_576
N3 H3A O6 0.91(2) 2.13(2) 2.962(2) 151(2) 1_455
O3 H3 N2 1.01(2) 1.63(2) 2.6402(19) 172(2) .
O5 H5 O2 0.93(3) 1.70(3) 2.6198(18) 173(2) 2_576
O7 H7A N4 0.94(7) 1.64(7) 2.577(2) 175(3) .
C9 H9 O8 0.93 2.91 3.436(2) 116.9 .
N4 H7B O7 0.91(14) 1.67(14) 2.577(2) 171(8) .
O10 H10 O7 0.83(2) 2.32(2) 3.0407(18) 146(2) 1_655

_chemical_name_common            'bis(nicotinamide).(citric acid)'

