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_4021444
_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         C24H16
_chemical_formula_sum            'C24 H16'
_chemical_formula_weight         304.37
_space_group_IT_number           14
_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                 110.95(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.822(2)
_cell_length_b                   15.188(2)
_cell_length_c                   10.316(2)
_cell_measurement_temperature    100(2)
_cell_volume                     1583.6(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Bruker-AXS Smart APEX CCD Diffractometer'
_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_sigmaI/netI    0.0652
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            7801
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    0.072
_exptl_absorpt_correction_T_max  0.9970
_exptl_absorpt_correction_T_min  0.9854
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.825
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         7808
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.825
_refine_ls_R_factor_all          0.0926
_refine_ls_R_factor_gt           0.0442
_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^)+(0.0416P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0852
_refine_ls_wR_factor_ref         0.0962
_reflns_number_gt                4277
_reflns_number_total             7801
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            jo0520644si20051010_034639_2.cif
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_Hall     -2_pybc
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4021444