Ethyl 3'-(2,4-dichlorophenyl)-5'-hydroxy-5'-methyl-4',5'-dihydrospiro[fluorene-9,2'(3'<i>H</i>)-furan]-4'-carboxylate
NizamMohideen, M.; Thenmozhi, S.; SubbiahPandi, A.; Savitha, G.; Perumal, P. T.; Acta Crystallographica Section E 65 (2009) o977–o978; doi:10.1107/S1600536809011854

data_2221669
_publ_section_title
;Ethyl
 3'-(2,4-dichlorophenyl)-5'-hydroxy-5'-methyl-4',5'-dihydrospiro[fluorene-9,2'(3'<i>H</i>)-furan]-4'-carboxylate
;
_journal_coeditor_code           FL2242
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o977
_journal_page_last               o978
_journal_paper_doi               10.1107/S1600536809011854
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C26 H22 Cl2 O4'
_chemical_formula_moiety         'C26 H22 Cl2 O4'
_chemical_formula_sum            'C26 H22 Cl2 O4'
_chemical_formula_weight         469.34
_chemical_name_systematic
;
Ethyl 3'-(2,4-dichlorophenyl)-5'-hydroxy-5'-methyl-4',5'-
dihydrospiro[fluorene-9,2'(3'<i>H</i>)-furan]-4'-carboxylate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 92.072(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   28.6811(13)
_cell_length_b                   9.0600(4)
_cell_length_c                   17.4074(8)
_cell_measurement_reflns_used    7176
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2.5
_cell_volume                     4520.4(4)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'XPREP (Bruker, 2004)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;
Bruker Kappa APEXII CCD
;
_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  0.0563
_diffrn_reflns_av_sigmaI/netI    0.0479
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            22504
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.84
_diffrn_reflns_theta_min         1.42
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.318
_exptl_absorpt_correction_T_max  0.938
_exptl_absorpt_correction_T_min  0.916
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.379
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prismatic
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.379
_refine_diff_density_min         -0.354
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         5338
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0789
_refine_ls_R_factor_gt           0.0477
_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^)+(0.0729P)^2^+2.471P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1508
_reflns_number_gt                3663
_reflns_number_total             5338
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fl2242.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' 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_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2221669
_cod_database_fobs_code          2221669