Synthesis and Structural Studies of Ethylnaphtho[2,1-b]furan-2-carboxylate
SHRUTHI, E.; KUMAR, S. Madan; KUSUMA, K.; MANJUNATH, H. R.; VAIDYA, V. P.; SRIDHAR, M. A.; LOKANATH, N. K.; X-ray Structure Analysis Online 28 (2012) 23–; doi:10.2116/xraystruct.28.23

data_1551709
_publ_section_title
;
 Synthesis and Structural Studies of
 Ethylnaphtho[2,1-b]furan-2-carboxylate
;
_journal_name_full               'X-ray Structure Analysis Online'
_journal_page_first              23
_journal_paper_doi               10.2116/xraystruct.28.23
_journal_volume                  28
_journal_year                    2012
_chemical_formula_moiety         'C15 H12 O3'
_chemical_formula_sum            'C15 H12 O3'
_chemical_formula_weight         240.25
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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                 123.785(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.112(4)
_cell_length_b                   5.9100(10)
_cell_length_c                   18.657(5)
_cell_measurement_reflns_used    2612
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.26
_cell_measurement_theta_min      3.69
_cell_volume                     1201.6(5)
_computing_cell_refinement       'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection
'<i>XPRESS</i> (MacScience, DIPLabo 32001, 2002)'
_computing_data_reduction
'DENZO and SCALEPACK (Otwinowski and Minor, 1997)'
_computing_molecular_graphics
'PLATON (Spek, 2003) ; ORTEP-II (Johnson, 1976)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.895
_diffrn_measured_fraction_theta_max 0.895
_diffrn_measurement_device_type  'MacScience DIPLabo 32001'
_diffrn_measurement_method       '\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  0.0341
_diffrn_reflns_av_sigmaI/netI    0.0355
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            2612
_diffrn_reflns_theta_full        23.26
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         3.69
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.328
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.375
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.053
_refine_ls_extinction_coef       0.06(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.316
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         1550
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.316
_refine_ls_R_factor_all          0.1100
_refine_ls_R_factor_gt           0.0929
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2803
_refine_ls_wR_factor_ref         0.3228
_reflns_number_gt                1091
_reflns_number_total             1550
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            28_23_1.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/andrius/struct/COD-crude-data/automatic-downloads/current/J-STAGE/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 6524 2018-11-02 12:15:13Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1551709