Photooxygenation mechanisms in naproxen-amino acid linked systems.
Vayá, Ignacio; Andreu, Inmaculada; Jiménez, M Consuelo; Miranda, Miguel A.; Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 13 (2014) 224–230; doi:10.1039/c3pp50252j

data_1513754
_publ_section_title
;
 Photooxygenation mechanisms in naproxen-amino acid linked systems.
;
_journal_issue                   2
_journal_name_full
'Photochemical &amp; photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology'
_journal_page_first              224
_journal_page_last               230
_journal_paper_doi               10.1039/c3pp50252j
_journal_volume                  13
_journal_year                    2014
_chemical_formula_sum            'C21 H22 N3 O4'
_chemical_formula_weight         380.42
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 92.664(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.5041(4)
_cell_length_b                   5.1979(3)
_cell_length_c                   24.1640(13)
_cell_measurement_temperature    120(2)
_cell_volume                     941.51(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0417
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2771
_diffrn_reflns_theta_full        60.05
_diffrn_reflns_theta_max         60.05
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.773
_exptl_absorpt_correction_T_max  0.9772
_exptl_absorpt_correction_T_min  0.8303
_exptl_crystal_density_diffrn    1.342
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             402
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.489
_refine_diff_density_min         -0.464
_refine_diff_density_rms         0.180
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(3)
_refine_ls_extinction_coef       0.023(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     260
_refine_ls_number_reflns         2771
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0852P)^2^+0.2877P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1262
_refine_ls_wR_factor_ref         0.1271
_reflns_number_gt                2708
_reflns_number_total             2771
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3pp50252j.txt
_cod_data_source_block           2006uv02cj02n
_cod_database_code               1513754