(2<i>E</i>,5<i>E</i>)-2,5-Bis(3,4,5-trimethoxybenzylidene)cyclopentanone
Sun, Yi-Feng; Liu, Yang; Zhang, Feng-Yu; Chen, Hong-Ji; Cui, Yi-Ping; Acta Crystallographica Section E 64 (2008) o1964–; doi:10.1107/S1600536808029474

data_2219576
_publ_section_title
;
 (2<i>E</i>,5<i>E</i>)-2,5-Bis(3,4,5-trimethoxybenzylidene)cyclopentanone
;
_journal_coeditor_code           FJ2151
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1964
_journal_paper_doi               10.1107/S1600536808029474
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C25 H28 O7'
_chemical_formula_moiety         'C25 H28 O7'
_chemical_formula_sum            'C25 H28 O7'
_chemical_formula_weight         440.47
_chemical_name_systematic
;
(2E,5E)-2,5-Bis(3,4,5-trimethoxybenzylidene)cyclopentanone
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 113.99(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.573(4)
_cell_length_b                   15.231(3)
_cell_length_c                   8.8460(18)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      13
_cell_measurement_theta_min      10
_cell_volume                     2286.2(10)
_computing_cell_refinement       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4 diffractometer'
_diffrn_measurement_method       \w/2\q
_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  0.0480
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2123
_diffrn_reflns_theta_full        25.16
_diffrn_reflns_theta_max         25.16
_diffrn_reflns_theta_min         1.80
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  2
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.9816
_exptl_absorpt_correction_T_min  0.9726
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>,  1968)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.280
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.267
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         2058
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0787
_refine_ls_R_factor_gt           0.0547
_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^)+(0.0800P)^2^+2.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1396
_refine_ls_wR_factor_ref         0.1640
_reflns_number_gt                1422
_reflns_number_total             2058
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            fj2151.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.

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (6 times).

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.

'_geom_torsion_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (6
times).

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               2219576
_cod_database_fobs_code          2219576