Thiourea as a Template for Photodimerization of Azastilbenes
Balakrishna R. Bhogala; Burjor Captain; Anand Parthasarathy; V. Ramamurthy; Journal of the American Chemical Society 132 (2010) 13434–13442; doi:10.1021/ja105166d

data_4103098
_publ_section_title
;
 Thiourea as a Template for Photodimerization of Azastilbenes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13434
_journal_page_last               13442
_journal_paper_doi               10.1021/ja105166d
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         CH4N2S,C12H10N2
_chemical_formula_sum            'C13 H14 N4 S'
_chemical_formula_weight         258.34
_chemical_name_systematic
;

 Thiourea - 1,2-bis(4-pyridyl)ethylene (1:1 co-crystal)

;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 98.9300(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5681(4)
_cell_length_b                   17.6354(8)
_cell_length_c                   8.9391(4)
_cell_measurement_reflns_used    6884
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.63
_cell_measurement_theta_min      2.31
_cell_volume                     1334.34(11)
_computing_cell_refinement       'SAINT+  V7.46A (Bruker, 2007)'
_computing_data_collection       'APEX2 v2.2-0 (Bruker, 2007)'
_computing_data_reduction        'SAINT+  V7.46A (Bruker, 2007)'
_computing_molecular_graphics    'XSHELL v4.02 (Bruker, 2000)'
_computing_publication_material  'XCIF v6.12 (Bruker, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX2 CCD diffractometer'
_diffrn_measurement_method       '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  0.0234
_diffrn_reflns_av_sigmaI/netI    0.0147
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            15399
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    0.230
_exptl_absorpt_correction_T_max  0.9773
_exptl_absorpt_correction_T_min  0.9216
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS 2007/4 Bruker)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.286
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.281
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         2620
_refine_ls_number_restraints     33
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0369
_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^)+(0.0633P)^2^+0.1917P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1008
_refine_ls_wR_factor_ref         0.1070
_reflns_number_gt                2275
_reflns_number_total             2620
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja105166d_si_002.cif
_cod_data_source_block           co-crystal_1c
_cod_database_code               4103098