Does stoichiometry matter? Cocrystals of aliphatic dicarboxylic acids with isonicotinamide: odd–even alternation in melting points
Tothadi, Srinu; Phadkule, Amala; CrystEngComm 21 (2019) 2481–; doi:10.1039/C9CE00299E

data_7232500
_publ_section_title
;
 Does stoichiometry matter? Cocrystals of aliphatic dicarboxylic acids
 with isonicotinamide: odd--even alternation in melting points
;
_journal_issue                   15
_journal_name_full               CrystEngComm
_journal_page_first              2481
_journal_paper_doi               10.1039/C9CE00299E
_journal_volume                  21
_journal_year                    2019
_chemical_formula_sum            'C20 H26 N4 O6'
_chemical_formula_weight         418.45
_chemical_name_common            'Suberic acid_isonicotinamide (1:2) cocrystal'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2018-05-28 deposited with the CCDC.    2019-03-18 downloaded from the CCDC.
;
_cell_angle_alpha                96.724(6)
_cell_angle_beta                 96.41(2)
_cell_angle_gamma                115.163(15)
_cell_formula_units_Z            2
_cell_length_a                   7.690(12)
_cell_length_b                   8.987(15)
_cell_length_c                   16.77(3)
_cell_measurement_reflns_used    2229
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1025(3)
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type
;
Rigaku Mercury375R (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0586
_diffrn_reflns_av_unetI/netI     0.0886
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            10848
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.589
_diffrn_reflns_theta_min         1.243
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.785
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            'colour less'
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_description       block
_exptl_crystal_F_000             444
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.370
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.111
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         4694
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.1018
_refine_ls_R_factor_gt           0.0680
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0805P)^2^+0.2409P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1654
_refine_ls_wR_factor_ref         0.1971
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3246
_reflns_number_total             4694
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce00299e2.cif
_cod_data_source_block           shelx2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7232497--7232500.cif.
;
_cod_database_code               7232500
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              54422