Crystalline adducts of the Lawsone molecule (2-hydroxy-1,4-naphthaquinone): optical properties and computational modelling
Pallipurath, Anuradha; Skelton, Jonathan M.; Delori, Amit; Duffy, Connor; Erxleben, Andrea; Jones, William; CrystEngComm 17 (2015) 7684–; doi:10.1039/C5CE01644D

data_7222005
_publ_section_title
;
 Crystalline adducts of the Lawsone molecule
 (2-hydroxy-1,4-naphthaquinone): optical properties and computational
 modelling
;
_journal_issue                   40
_journal_name_full               CrystEngComm
_journal_page_first              7684
_journal_paper_doi               10.1039/C5CE01644D
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         '2(C10 H6 O3), C10 H8 N2'
_chemical_formula_sum            'C30 H20 N2 O6'
_chemical_formula_weight         504.48
_chemical_melting_point          456.9
_chemical_name_common            lawsone-bipyridyl
_space_group_IT_number           14
_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
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-08-13 deposited with the CCDC.
2015-09-03 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 96.131(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.6360(3)
_cell_length_b                   4.7798(1)
_cell_length_c                   23.0987(9)
_cell_measurement_reflns_used    3634
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     1167.57(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
 HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0337
_diffrn_reflns_av_sigmaI/netI    0.0587
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            6685
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.55
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.904
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.435
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             524
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.905
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2626
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.905
_refine_ls_R_factor_all          0.0634
_refine_ls_R_factor_gt           0.0390
_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^)+(0.0546P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0920
_refine_ls_wR_factor_ref         0.0960
_reflns_number_gt                1623
_reflns_number_total             2626
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ce01644d2.cif
_cod_data_source_block           se1202
_cod_depositor_comments
'Adding full bibliography for 7222005--7222008.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7222005