The Melting Point Alternation in α,ω-Alkanedicarboxylic Acids
Venkat R. Thalladi; Markus Nüsse; Roland Boese; Journal of the American Chemical Society 122 (2000) 9227–9236; doi:10.1021/ja0011459

data_4116146
_publ_section_title
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 The Melting Point Alternation in \a,\w-Alkanedicarboxylic Acids
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9227
_journal_page_last               9236
_journal_paper_doi               10.1021/ja0011459
_journal_volume                  122
_journal_year                    2000
_chemical_compound_source        Fluka
_chemical_formula_moiety         'C9 H16 O4'
_chemical_formula_structural     'C9 H16 O4'
_chemical_formula_sum            'C9 H16 O4'
_chemical_formula_weight         188.22
_chemical_melting_point          379.5
_chemical_name_common            'Azelaic acid'
_chemical_name_systematic
; 
 Nonane-1,9-dioic acid 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 110.809(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.63660(10)
_cell_length_b                   4.71430(10)
_cell_length_c                   9.6162(3)
_cell_measurement_temperature    130(2)
_cell_volume                     959.26(4)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      130(2)
_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  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0386
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       3
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3783
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.102
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_F_000             408
_refine_diff_density_max         0.339
_refine_diff_density_min         -0.196
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   0.997
_refine_ls_goodness_of_fit_obs   1.096
_refine_ls_matrix_type           full
_refine_ls_number_parameters     68
_refine_ls_number_reflns         979
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.997
_refine_ls_restrained_S_obs      1.096
_refine_ls_R_factor_all          0.0701
_refine_ls_R_factor_obs          0.0454
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1187
_refine_ls_wR_factor_obs         0.1080
_reflns_number_observed          690
_reflns_number_total             979
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ja0011459_08.cif
_cod_data_source_block           disa94m
_cod_depositor_comments
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The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
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_cod_database_code               4116146