Atalaphylline
Chantrapromma, Suchada; Boonnak, Nawong; Razak, Ibrahim Abdul; Fun, Hoong-Kun; Acta Crystallographica Section E 66 (2010) o81–o82; doi:10.1107/S1600536809051885

data_2224768
_publ_section_title
;
 Atalaphylline
;
_journal_coeditor_code           SJ2692
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o81
_journal_page_last               o82
_journal_paper_doi               10.1107/S1600536809051885
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C23 H25 N O4'
_chemical_formula_moiety         'C23 H25 N O4'
_chemical_formula_sum            'C23 H25 N O4'
_chemical_formula_weight         379.44
_chemical_melting_point_gt       518
_chemical_melting_point_lt       520
_chemical_name_common
;
Atalaphylline
;
_chemical_name_systematic
;
1,3,5-trihydroxy-2,4-bis(3-methylbut-2-enyl)acridin-9(10<i>H</i>)-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.06500(10)
_cell_length_b                   15.0131(4)
_cell_length_c                   24.5813(5)
_cell_measurement_reflns_used    3142
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.00
_cell_measurement_theta_min      1.59
_cell_volume                     1869.20(7)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0413
_diffrn_reflns_av_sigmaI/netI    0.0441
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            17852
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.59
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9961
_exptl_absorpt_correction_T_min  0.9639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.300
_refine_diff_density_min         -0.263
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         3142
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0492
_refine_ls_shift/su_max_lt       0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0588P)^2^+0.5624P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1091
_refine_ls_wR_factor_ref         0.1182
_reflns_number_gt                2525
_reflns_number_total             3142
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj2692.cif
_cod_data_source_block           I
_cod_database_code               2224768
_cod_database_fobs_code          2224768