Ethyl 3-(1,3-benzodioxol-5-yl)acrylate
Li Zhang; Song-Qing Wang; Xuan Yu; Acta Crystallographica Section E 63 (2007) o2278–o2279; doi:10.1107/S1600536807015097

data_2213556
_publ_section_title
;
 Ethyl 3-(1,3-benzodioxol-5-yl)acrylate
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_journal_coeditor_code           SJ2269
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2278
_journal_page_last               o2279
_journal_paper_doi               10.1107/S1600536807015097
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C12 H12 O4'
_chemical_formula_moiety         'C12 H12 O4'
_chemical_formula_sum            'C12 H12 O4'
_chemical_formula_weight         220.22
_chemical_melting_point          339
_chemical_name_systematic
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Ethyl 3-(1,3-benzodioxol-5-yl)acrylate
;
_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           SHELXL97
_cell_angle_alpha                75.534(5)
_cell_angle_beta                 74.094(5)
_cell_angle_gamma                70.637(6)
_cell_formula_units_Z            2
_cell_length_a                   7.420(2)
_cell_length_b                   7.673(3)
_cell_length_c                   10.590(4)
_cell_measurement_reflns_used    1216
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      26.33
_cell_measurement_theta_min      2.86
_cell_volume                     538.6(3)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 1999)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART 100 CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0153
_diffrn_reflns_av_sigmaI/netI    0.0283
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            2814
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.03
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9739
_exptl_absorpt_correction_T_min  0.9700
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             232
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.146
_refine_ls_extinction_coef       0.066(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     147
_refine_ls_number_reflns         1897
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0584
_refine_ls_R_factor_gt           0.0383
_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^)+(0.0562P)^2^+0.0567P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0977
_refine_ls_wR_factor_ref         0.1139
_reflns_number_gt                1336
_reflns_number_total             1897
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj2269.cif
_cod_data_source_block           I
_cod_depositor_comments
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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_enum 1527 2010-12-29 10:47:43Z saulius 

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 
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_cod_database_code               2213556
_cod_database_fobs_code          2213556