Overcrowded 1,8-diazafluorenylidene-chalcoxanthenes. Introducing nitrogens at the fjord regions of bistricyclic aromatic enes
Levy, Amalia; Cohen, Shmuel; Agranat, Israel; Organic & Biomolecular Chemistry 1 (2003) 2755–; doi:10.1039/b303041e

data_7151432
_publ_section_title
;
 Overcrowded 1,8-diazafluorenylidene-chalcoxanthenes. Introducing
 nitrogens at the fjord regions of bistricyclic aromatic enes
;
_journal_issue                   15
_journal_name_full               'Organic &amp;  Biomolecular Chemistry'
_journal_page_first              2755
_journal_paper_doi               10.1039/b303041e
_journal_volume                  1
_journal_year                    2003
_chemical_formula_moiety         'C24 H14 N2 Te'
_chemical_formula_weight         457.99
_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'
_audit_creation_date             'Sun Feb  9 16:42:32 2003'
_audit_creation_method           'from TEXRAY.INF file'
_cell_angle_alpha                90
_cell_angle_beta                 92.68(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.579(2)
_cell_length_b                   11.920(2)
_cell_length_c                   12.202(2)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    293.2
_cell_measurement_theta_max      13.0
_cell_measurement_theta_min      10.0
_cell_volume                     1827.6(5)
_computing_cell_refinement       'Philips PW1100 Diffractometer Control'
_computing_data_collection       'Philips PW1100 Diffractometer Control'
_computing_data_reduction        teXsan
_computing_publication_material  teXsan
_computing_structure_refinement  teXsan
_computing_structure_solution    SHELXS86
_diffrn_ambient_temperature      293.2
_diffrn_measurement_device       'Philips PW1100'
_diffrn_measurement_method       'omega/2-theta scans'
_diffrn_orient_matrix_UB_11      0.01269
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_diffrn_orient_matrix_UB_21      -0.03645
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_diffrn_orient_matrix_UB_23      -0.04558
_diffrn_orient_matrix_UB_31      0.04134
_diffrn_orient_matrix_UB_32      0.01066
_diffrn_orient_matrix_UB_33      -0.03637
_diffrn_radiation_detector       scintillation
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_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoKalpha
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  1.95
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_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 100
_diffrn_standards_number         1
_exptl_absorpt_coefficient_mu    1.638
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.44
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   Walker&Stuart_DIFABS
_exptl_crystal_colour            yellow
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_exptl_crystal_description       prism
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_refine_ls_extinction_method     Zachariasen_type_2_Gaussian_isotropic
_refine_ls_goodness_of_fit_obs   2.080
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         3444
_refine_ls_number_restraints     0
_refine_ls_R_factor_obs          0.047
_refine_ls_shift/esd_max         0.0010
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
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_reflns_number_observed          3444
_reflns_number_total             5782
_reflns_observed_criterion       3.00
_cod_data_source_file            b303041e.txt
_cod_data_source_block           Compound_14
_cod_original_sg_symbol_H-M      'P 21/n     '
_cod_database_code               7151432