8<i>H</i>-Chromeno[2',3':4,5]imidazo[2,1-<i>a</i>]isoquinoline
Safarov, Saifidin; Voskressensky, Leonid G.; Bizhko, Oksana V.; Kulikova, Larisa N.; Khrustalev, Victor N.; Acta Crystallographica Section E 66 (2010) o710–; doi:10.1107/S1600536810006744

data_2225358
_publ_section_title
;
 8<i>H</i>-Chromeno[2',3':4,5]imidazo[2,1-<i>a</i>]isoquinoline
;
_journal_coeditor_code           RK2193
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o710
_journal_paper_doi               10.1107/S1600536810006744
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C18 H12 N2 O'
_chemical_formula_moiety         'C18 H12 N2 O'
_chemical_formula_sum            'C18 H12 N2 O'
_chemical_formula_weight         272.30
_chemical_name_systematic
;
8<i>H</i>-Chromeno[2',3':4,5]imidazo[2,1-<i>a</i>]isoquinoline
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 102.682(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.9717(15)
_cell_length_b                   6.0580(8)
_cell_length_c                   17.948(2)
_cell_measurement_reflns_used    1700
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.3
_cell_measurement_theta_min      2.3
_cell_volume                     1269.9(3)
_computing_cell_refinement       '<i>SAINT-Plus</i> (Bruker, 2001)'
_computing_data_collection       '<i>APEX2</i> (Bruker, 2005)'
_computing_data_reduction        '<i>SAINT-Plus</i> (Bruker, 2001)'
_computing_molecular_graphics    '<i>SHELXTL</i> (Sheldrick, 2008)'
_computing_publication_material  '<i>SHELXTL</i> (Sheldrick, 2008)'
_computing_structure_refinement  '<i>SHELXL97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       '\f and \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  0.056
_diffrn_reflns_av_sigmaI/netI    0.047
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12413
_diffrn_reflns_theta_full        27.0
_diffrn_reflns_theta_max         27.0
_diffrn_reflns_theta_min         1.9
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.965
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.424
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.45
_refine_diff_density_min         -0.23
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.00
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2734
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.00
_refine_ls_R_factor_all          0.105
_refine_ls_R_factor_gt           0.066
_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^)+(0.077P)^2^+1.7P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.154
_refine_ls_wR_factor_ref         0.182
_reflns_number_gt                1821
_reflns_number_total             2734
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            rk2193.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2225358
_cod_database_fobs_code          2225358