Molecular origins of commercial laser dye functionality in azacoumarins and 2-quinolones: LD 425, LD 489 and LD 473
Liu, Xiaogang; Cole, Jacqueline M.; Waddell, Paul G.; Lin, Tze-Chia; Acta Crystallographica Section B 67 (2011) 560–568; doi:10.1107/S0108768111037311

data_2104986
_publ_section_title
;
 Molecular origins of commercial laser dye functionality in azacoumarins
 and 2-quinolones: LD 425, LD 489 and LD 473
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              560
_journal_page_last               568
_journal_paper_doi               10.1107/S0108768111037311
_journal_volume                  67
_journal_year                    2011
_chemical_formula_moiety         'C13 H14 N2 O3'
_chemical_formula_sum            'C13 H14 N2 O3'
_chemical_formula_weight         246.26
_chemical_name_common            'LD 425'
_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                 103.481(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   7.061(5)
_cell_length_b                   24.489(15)
_cell_length_c                   13.930(9)
_cell_measurement_reflns_used    6908
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      33.1
_cell_measurement_theta_min      1.7
_cell_volume                     2342(3)
_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      180(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.0774
_diffrn_reflns_av_sigmaI/netI    0.1242
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            14043
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  1.028
_exptl_absorpt_correction_T_min  0.973
_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            Colorless
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.310
_refine_diff_density_min         -0.485
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     437
_refine_ls_number_reflns         5763
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.131
_refine_ls_R_factor_all          0.0768
_refine_ls_R_factor_gt           0.0624
_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^)+(0.0464P)^2^+0.1911P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1447
_refine_ls_wR_factor_ref         0.1581
_reflns_number_gt                4634
_reflns_number_total             5763
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bk5105.cif
_cod_data_source_block           ld425
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               2104986
_cod_database_fobs_code          2104986