Molecular origins of optoelectronic properties in coumarin dyes: toward designer solar cell and laser applications.
Liu, Xiaogang; Cole, Jacqueline M.; Waddell, Paul G.; Lin, Tze-Chia; Radia, Jignesh; Zeidler, Anita; The journal of physical chemistry. A 116 (2012) 727–737; doi:10.1021/jp209925y

data_1507139
_publ_section_title
;
 Molecular origins of optoelectronic properties in coumarin dyes: toward
 designer solar cell and laser applications.
;
_journal_issue                   1
_journal_name_full               'The journal of physical chemistry. A'
_journal_page_first              727
_journal_page_last               737
_journal_paper_doi               10.1021/jp209925y
_journal_volume                  116
_journal_year                    2012
_chemical_formula_moiety         'C22 H18 N2 O3'
_chemical_formula_sum            'C22 H18 N2 O3'
_chemical_formula_weight         358.38
_chemical_name_common            'Coumarin 525'
_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                 97.2558(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.1252(4)
_cell_length_b                   7.3464(2)
_cell_length_c                   17.3911(7)
_cell_measurement_reflns_used    4182
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     1663.47(10)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'HKL Denzo and Scalepack'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  KappaCCD
_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  0.0420
_diffrn_reflns_av_sigmaI/netI    0.0533
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8478
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.68
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.933
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav Blessing (1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.59
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         3580
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0525
_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^)+(0.0496P)^2^+0.9759P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1191
_refine_ls_wR_factor_ref         0.1363
_reflns_number_gt                2582
_reflns_number_total             3580
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp209925y_si_002.cif
_cod_data_source_block           coumarin525
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1507139