Polymorphism and phase transformations of a cocrystal of nicotinamide and pimelic acid
Aitipamula, Srinivasulu; Wong, Annie B. H.; Chow, Pui Shan; Tan, Reginald B. H.; CrystEngComm 14 (2012) 8193–; doi:10.1039/c2ce26151k

data_7214947
_publ_section_title
;
 Polymorphism and phase transformations of a cocrystal of nicotinamide and
 pimelic acid
;
_journal_issue                   23
_journal_name_full               CrystEngComm
_journal_page_first              8193
_journal_paper_doi               10.1039/c2ce26151k
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C7 H12 O4, C6 H6 N2 O'
_chemical_formula_sum            'C13 H18 N2 O5'
_chemical_formula_weight         282.29
_chemical_melting_point          383
_chemical_name_common
;
Form 1 of 1:1 nicotinamide and pimelic acid
;
_chemical_name_systematic
;
Form 1 of 1:1 nicotinamide and pimelic acid
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                99.69(3)
_cell_angle_beta                 94.01(3)
_cell_angle_gamma                103.93(3)
_cell_formula_units_Z            2
_cell_length_a                   5.4242(11)
_cell_length_b                   7.3161(15)
_cell_length_c                   17.917(4)
_cell_measurement_reflns_used    2085
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      31.0442
_cell_measurement_theta_min      2.3219
_cell_volume                     675.7(3)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Rigaku Saturn 70 CCD area detector'
_diffrn_measurement_method       '\w 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  0.0247
_diffrn_reflns_av_sigmaI/netI    0.0238
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            9535
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.9883
_exptl_absorpt_correction_T_min  0.9543
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'R. H. Blessing, Acta Cryst. 1995 A51, 33-38'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.388
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.431
_refine_diff_density_min         -0.311
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.144
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     197
_refine_ls_number_reflns         3289
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.144
_refine_ls_R_factor_all          0.0609
_refine_ls_R_factor_gt           0.0554
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0895P)^2^+0.1493P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1504
_refine_ls_wR_factor_ref         0.1560
_reflns_number_gt                2972
_reflns_number_total             3289
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce26151k.txt
_cod_data_source_block           PANAF1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '383 K' was changed to '383' - the
value should be numeric and without a unit
designator.

'_symmetry_cell_setting' value 'Triclinic' changed to
'triclinic' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        675.7(2)
_cod_database_code               7214947