Structural tuning intra- versus inter-molecular proton transfer reaction in the excited state.
Chung, Min-Wen; Liao, Jia-Ling; Tang, Kuo-Chun; Hsieh, Cheng-Chih; Lin, Tsung-Yi; Liu, Chun; Lee, Gene-Hsiang; Chi, Yun; Chou, Pi-Tai; Physical chemistry chemical physics : PCCP 14 (2012) 9006–9015; doi:10.1039/c2cp23938h

data_7208128
_publ_section_title
;
 Structural tuning intra- versus inter-molecular proton transfer reaction
 in the excited state.
;
_journal_issue                   25
_journal_name_full               'Physical chemistry chemical physics : PCCP'
_journal_page_first              9006
_journal_page_last               9015
_journal_paper_doi               10.1039/c2cp23938h
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C11 H6 F3 N3'
_chemical_formula_weight         237.19
_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                 96.014(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.0909(12)
_cell_length_b                   4.8932(4)
_cell_length_c                   14.1826(12)
_cell_measurement_reflns_used    1896
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.83
_cell_measurement_theta_min      2.89
_cell_volume                     972.50(14)
_computing_cell_refinement       'Bruker SAINT'
_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      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
_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  0.0267
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6493
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.141
_exptl_absorpt_correction_T_max  0.9888
_exptl_absorpt_correction_T_min  0.9200
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.620
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.492
_refine_diff_density_min         -0.358
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2242
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0645
_refine_ls_R_factor_gt           0.0524
_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^)+(0.0661P)^2^+0.7156P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1381
_refine_ls_wR_factor_ref         0.1464
_reflns_number_gt                1786
_reflns_number_total             2242
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cp23938h.txt
_cod_data_source_block           4
_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_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7208128