An Axially Chiral 1,1′-Biazulene and Its π-Extended Derivative: Synthesis, Structures and Properties
Chaolumen, Chaolumen; Ito, Hideto; Itami, Kenichiro; Chemical Communications  (2019) –; doi:10.1039/C9CC03510A

data_7123836
_publ_section_title
;
 An Axially Chiral 1,1&#x2032;-Biazulene and Its \p-Extended Derivative:
 Synthesis, Structures and Properties
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC03510A
_journal_year                    2019
_chemical_absolute_configuration unk
_chemical_formula_sum            'C56 H34'
_chemical_formula_weight         706.83
_chemical_name_systematic        'compound 2'
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-02-26 deposited with the CCDC.    2019-07-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 118.502(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.1839(6)
_cell_length_b                   17.6048(3)
_cell_length_c                   14.1755(4)
_cell_measurement_reflns_used    9519
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      30.4450
_cell_measurement_theta_min      2.8650
_cell_volume                     3549.3(2)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material  'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
'dtrek-CrysAlisPro-abstract goniometer imported rigaku-d*trek images'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0163
_diffrn_reflns_av_unetI/netI     0.0143
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            12726
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        24.994
_diffrn_reflns_theta_max         24.994
_diffrn_reflns_theta_min         2.314
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.84724
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_description       block
_exptl_crystal_F_000             1480
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: CHCl3/hexane'
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.297
_refine_diff_density_min         -0.161
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3124
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0354
_refine_ls_R_factor_gt           0.0322
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0462P)^2^+2.4080P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0893
_refine_ls_wR_factor_ref         0.0914
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2831
_reflns_number_total             3124
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc03510a2.cif
_cod_data_source_block           2
_cod_database_code               7123836
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.989
_shelx_estimated_absorpt_t_max   0.993
_shelx_res_checksum              85767