Molecular Origins of Optoelectronic Properties in Coumarins 343, 314T, 445, and 522B
Liu, Xiaogang; Cole, Jacqueline M.; Waddell, Paul G.; Lin, Tze-Chia; McKechnie, Scott; The Journal of Physical Chemistry C 117 (2013) 14130–; doi:10.1021/jp400614e

data_1512131
_publ_section_title
;
 Molecular Origins of Optoelectronic Properties in Coumarins 343, 314T,
 445, and 522B
;
_journal_issue                   27
_journal_name_full               'The Journal of Physical Chemistry C'
_journal_page_first              14130
_journal_paper_doi               10.1021/jp400614e
_journal_volume                  117
_journal_year                    2013
_chemical_formula_moiety         'C22 H27 N O4'
_chemical_formula_sum            'C22 H27 N O4'
_chemical_formula_weight         369.45
_chemical_name_common            'Coumarin 314T, Coumarin 504T'
_chemical_name_systematic
; 
ethyl 1,1,7,7-tetramethyl-11-oxo-2,3,5,6,7,11-hexahydro-1H-pyrano[2,3-f]pyrido[3,2,1-ij]quinoline-10-carboxylate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 126.342(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.115(8)
_cell_length_b                   11.990(3)
_cell_length_c                   15.721(5)
_cell_measurement_reflns_used    4761
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      33.0
_cell_measurement_theta_min      2.6
_cell_volume                     3813(2)
_computing_cell_refinement
; 
Rigaku CrystalClear-SM Expert 2.0 r4 
;
_computing_data_collection
; 
Rigaku CrystalClear-SM Expert 2.0 r4 
;
_computing_data_reduction
; 
Rigaku CrystalClear-SM Expert 2.0 r4 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type
; 
Rigaku CrystalClear-SM Expert 2.0 r4 
;
_diffrn_measurement_method       'profile data from \w-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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0416
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15132
_diffrn_reflns_theta_full        30.51
_diffrn_reflns_theta_max         30.51
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 Scaled and merged with Sortav 
 R.H. Blessing, (1987) Cryst. Rev. 1, 3-58 
 R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397 
;
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.287
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1584
_exptl_crystal_size_max          0.59
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.404
_refine_diff_density_min         -0.241
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.102
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         5762
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0557
_refine_ls_R_factor_gt           0.0517
_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^)+(0.0599P)^2^+2.1246P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1300
_refine_ls_wR_factor_ref         0.1333
_reflns_number_gt                5382
_reflns_number_total             5762
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp400614e_si_002.cif
_cod_data_source_block           coumarin314t_120k
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1512131