Hydrogen-bond network in isomeric phenylenedipropynoic acids and their DABCO salts. Water mediated helical hydrogen bond motifs
Saravanakumar, Rajendran; Varghese, Babu; Sankararaman, Sethuraman; CrystEngComm 11 (2009) 337–346; doi:10.1039/b816658g

data_7215530
_publ_section_title
;
 Hydrogen-bond network in isomeric phenylenedipropynoic acids and their
 DABCO salts. Water mediated helical hydrogen bond motifs
;
_journal_coden_ASTM              CRECF4
_journal_issue                   2
_journal_name_full               CrystEngComm
_journal_page_first              337
_journal_page_last               346
_journal_paper_doi               10.1039/b816658g
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C12 H10 O6'
_chemical_formula_sum            'C12 H10 O6'
_chemical_formula_weight         250.20
_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                101.929(5)
_cell_angle_beta                 93.522(5)
_cell_angle_gamma                93.507(5)
_cell_formula_units_Z            1
_cell_length_a                   3.7812(3)
_cell_length_b                   6.1345(5)
_cell_length_c                   13.3677(11)
_cell_measurement_reflns_used    1570
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.1
_cell_measurement_theta_min      3.1
_cell_volume                     301.94(4)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Bruno et al., 2002)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altornare et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker axs kappa apex2 CCD diffractometer'
_diffrn_measurement_method       '\w and \f'
_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  0.0132
_diffrn_reflns_av_sigmaI/netI    0.0135
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3209
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.56
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.112
_exptl_absorpt_correction_T_max  0.9627
_exptl_absorpt_correction_T_min  0.8811
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker(SADABS, 1999)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.376
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prisamatic
_exptl_crystal_F_000             130
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.362
_refine_diff_density_min         -0.152
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         1051
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0497
_refine_ls_R_factor_gt           0.0422
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0666P)^2^+0.0799P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1188
_refine_ls_wR_factor_ref         0.1298
_reflns_number_gt                884
_reflns_number_total             1051
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7200493
_cod_data_source_file            b816658g.txt
_cod_data_source_block           saran1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_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.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Updated bibliographic information.

 Antanas Vaitkus,
 2019-09-18

 Marked entry as a duplicate of entry 7200493.

 Antanas Vaitkus,
 2019-09-18
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7215530