Crystal packing and melting temperatures of small oxalate esters: the role of C—H···O hydrogen bonding
Joseph, Sumy; Sathishkumar, Ranganathan; Mahapatra, Sudarshan; Desiraju, Gautam R.; Acta Crystallographica Section B 67 (2011) 525–534; doi:10.1107/S0108768111037487

data_2105032
_publ_section_title
;
 Crystal packing and melting temperatures of small oxalate esters: the
 role of C---H&#x00B7;&#x00B7;&#x00B7;O hydrogen bonding
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              525
_journal_page_last               534
_journal_paper_doi               10.1107/S0108768111037487
_journal_volume                  67
_journal_year                    2011
_chemical_formula_moiety         'C10 H18 O4'
_chemical_formula_sum            'C10 H18 O4'
_chemical_formula_weight         202.24
_chemical_name_common            'di-n-butyl oxalate'
_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
_cell_angle_alpha                81.486(11)
_cell_angle_beta                 81.175(8)
_cell_angle_gamma                81.044(8)
_cell_formula_units_Z            1
_cell_length_a                   4.360(2)
_cell_length_b                   4.611(2)
_cell_length_c                   13.954(7)
_cell_measurement_reflns_used    1713
_cell_measurement_temperature    90
_cell_measurement_theta_max      55.632
_cell_measurement_theta_min      5.958
_cell_volume                     271.6(2)
_computing_cell_refinement       'Bruker SMART V5.628, (Bruker, 2004)'
_computing_data_collection       'Bruker SMART V5.628, (Bruker, 2004)'
_computing_data_reduction        'Bruker SAINT V6.45a, (Bruker, 2004)'
_computing_molecular_graphics
'Ortep-3 for Windows (Farrugia, 1997) and CAMERON (Watkin et al., 1993)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXTL V6.14 (Bruker, 2000)'
_diffrn_ambient_temperature      90
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Bruker SMART CCD area detector'
_diffrn_measurement_method       '\f and \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  0.0453
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            2826
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.968
_exptl_absorpt_correction_T_min  0.954
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       cylindrical
_exptl_crystal_F_000             110
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.500
_exptl_crystal_size_min          0.350
_refine_diff_density_max         0.759
_refine_diff_density_min         -0.318
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.260
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     100
_refine_ls_number_reflns         1204
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.260
_refine_ls_R_factor_all          0.1048
_refine_ls_R_factor_gt           0.0954
_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^)+(0.0574P)^2^+1.1393P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2476
_refine_ls_wR_factor_ref         0.2515
_reflns_number_gt                1046
_reflns_number_total             1204
_reflns_threshold_expression     >2\s(i)
_cod_data_source_file            og5050.cif
_cod_data_source_block           DnBO90
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2105032
_cod_database_fobs_code          2105032