Effect of ground-state twisting on the trans –> cis photoisomerization and TICT state formation of aminostilbenes.
Yang, Jye-Shane; Lin, Cheng-Kai; Lahoti, Anand M.; Tseng, Chung-Kai; Liu, Yi-Hung; Lee, Gene-Hsiang; Peng, Shie-Ming; The journal of physical chemistry. A 113 (2009) 4868–4877; doi:10.1021/jp807748t

data_1516380
_publ_section_title
;
 Effect of ground-state twisting on the trans --&gt; cis
 photoisomerization and TICT state formation of aminostilbenes.
;
_journal_issue                   17
_journal_name_full               'The journal of physical chemistry. A'
_journal_page_first              4868
_journal_page_last               4877
_journal_paper_doi               10.1021/jp807748t
_journal_volume                  113
_journal_year                    2009
_chemical_formula_sum            'C23 H20 N2'
_chemical_formula_weight         324.41
_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                 100.830(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.0282(3)
_cell_length_b                   13.2482(3)
_cell_length_c                   8.2983(2)
_cell_measurement_reflns_used    6856
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      30.1727
_cell_measurement_theta_min      2.9283
_cell_volume                     1730.72(7)
_computing_cell_refinement
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET) 
(compiled Apr 21 2008,18:23:10) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_collection
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET) 
(compiled Apr 21 2008,18:23:10) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_reduction
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET) 
(compiled Apr 21 2008,18:23:10) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R'
_diffrn_measurement_method       CCD
_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  0.0311
_diffrn_reflns_av_sigmaI/netI    0.0292
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            16691
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86034
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET) 
(compiled Apr 21 2008,18:23:10) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_density_diffrn    1.245
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.353
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.038
_refine_ls_extinction_coef       0.002(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.095
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         3970
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.0743
_refine_ls_R_factor_gt           0.0480
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0899P)^2^+0.0979P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1506
_refine_ls_wR_factor_ref         0.1611
_reflns_number_gt                2619
_reflns_number_total             3970
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp807748t_si_001.cif
_cod_data_source_block           6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1516380