Convenient access to readily soluble symmetrical dialkyl-substituted α-oligofurans.
Korshin, Edward E.; Leitus, Gregory M.; Bendikov, Michael; Organic & biomolecular chemistry 12 (2014) 6661–6671; doi:10.1039/c4ob00898g

data_7153936
_publ_section_title
;
 Convenient access to readily soluble symmetrical dialkyl-substituted
 \a-oligofurans.
;
_journal_issue                   34
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              6661
_journal_page_last               6671
_journal_paper_doi               10.1039/c4ob00898g
_journal_volume                  12
_journal_year                    2014
_chemical_formula_moiety         'C10 H6 O4'
_chemical_formula_sum            'C10 H6 O4'
_chemical_formula_weight         190.15
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 107.70(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.1142(12)
_cell_length_b                   12.283(3)
_cell_length_c                   5.6061(11)
_cell_measurement_reflns_used    8956
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      37.44
_cell_measurement_theta_min      2.6
_cell_volume                     401.09(16)
_computing_cell_refinement       'Bruker Apex2'
_computing_data_collection       'Bruker Apex2'
_computing_data_reduction        'Bruker Apex2'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker Kappa Apex2 CCD'
_diffrn_measurement_method       'phi and omega 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  0.0230
_diffrn_reflns_av_sigmaI/netI    0.0201
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            8689
_diffrn_reflns_theta_full        37.44
_diffrn_reflns_theta_max         37.44
_diffrn_reflns_theta_min         3.32
_exptl_absorpt_coefficient_mu    0.124
_exptl_absorpt_correction_T_max  0.9951
_exptl_absorpt_correction_T_min  0.9901
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SHELXTL'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.574
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             196
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.650
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     76
_refine_ls_number_reflns         2073
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0743P)^2^+0.0226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1062
_refine_ls_wR_factor_ref         0.1124
_reflns_number_gt                1791
_reflns_number_total             2073
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ob00898g2.cif
_cod_data_source_block           bd87
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7153936.cif.
;
_cod_original_sg_symbol_Hall     -P2ybc
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7153936