Highly Twisted N,N-Dialkylamines as a Design Strategy to Tune Simple Aromatic Hydrocarbons as Steric Environment-Sensitive Fluorophores.
Sasaki, Shunsuke; Suzuki, Satoshi; Sameera, W. M. C.; Igawa, Kazunobu; Morokuma, Keiji; Konishi, Gen-Ichi; Journal of the American Chemical Society 138 (2016) 8194–8206; doi:10.1021/jacs.6b03749

data_4130459
_publ_section_title
;
 Highly Twisted N,N-Dialkylamines as a Design Strategy to Tune Simple
 Aromatic Hydrocarbons as Steric Environment-Sensitive Fluorophores.
;
_journal_issue                   26
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8194
_journal_page_last               8206
_journal_paper_doi               10.1021/jacs.6b03749
_journal_volume                  138
_journal_year                    2016
_chemical_formula_moiety         'C18 H20 N2'
_chemical_formula_sum            'C18 H20 N2'
_chemical_formula_weight         264.37
_chemical_melting_point          470.4(4)
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
_cell_angle_alpha                90.0000
_cell_angle_beta                 114.241(12)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   9.165(9)
_cell_length_b                   8.390(7)
_cell_length_c                   10.289(10)
_cell_measurement_reflns_used    2122
_cell_measurement_temperature    123
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      4.45
_cell_volume                     721.4(12)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare, et al., 1994)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 7.314
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Rigaku Saturn70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0768
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            4687
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.072
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             284.00
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.220
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.360
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     93
_refine_ls_number_reflns         1601
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0615
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1328P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1890
_reflns_number_gt                1242
_reflns_number_total             1601
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja6b03749_si_005.cif
_cod_data_source_block           BDAAmethyl
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '196.8-197.7 degC' was
changed to '470.4(4)' -- it was converted from degrees Celsius(C) to
Kelvins(K), the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        721.3(12)
_cod_database_code               4130459