Volume-Demanding Cis-Trans Isomerization of 1,2-Diaryl Olefins in the Solid State
Arunkumar Natarajan; Joel T. Mague; K. Venkatesan; T. Arai; V. Ramamurthy; Journal of Organic Chemistry 71 (2006) 1055–1059; doi:10.1021/jo0520644

data_4021443
_publ_section_title
;
 Volume-Demanding Cis-Trans Isomerization of
 1,2-Diaryl Olefins in the Solid State
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1055
_journal_page_last               1059
_journal_paper_doi               10.1021/jo0520644
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C24 H16'
_chemical_formula_sum            'C24 H16'
_chemical_formula_weight         304.37
_chemical_name_systematic
; 
 8-styrylfluoranthrene 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.873(2)
_cell_length_b                   12.336(1)
_cell_length_c                   6.7665(7)
_cell_measurement_reflns_used    8880
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.72
_cell_volume                     1575.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0279
_diffrn_reflns_av_sigmaI/netI    0.0273
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            13517
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9909
_exptl_absorpt_correction_T_min  0.8506
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Column
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.231
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   9(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3770
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0367
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0532P)^2^+0.1652P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0901
_refine_ls_wR_factor_ref         0.0925
_reflns_number_gt                3494
_reflns_number_total             3770
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo0520644si20051010_034639_1.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 
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_cod_database_code               4021443