Syntheses of donor-acceptor-functionalized dihydroazulenes.
Broman, Søren Lindbæk; Jevric, Martyn; Bond, Andrew D.; Nielsen, Mogens Brøndsted; The Journal of organic chemistry 79 (2014) 41–64; doi:10.1021/jo4020326

data_4029098
_publ_section_title
;
 Syntheses of donor-acceptor-functionalized dihydroazulenes.
;
_journal_issue                   1
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              41
_journal_page_last               64
_journal_paper_doi               10.1021/jo4020326
_journal_volume                  79
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H10 Br N3 O2'
_chemical_formula_sum            'C18 H10 Br N3 O2'
_chemical_formula_weight         380.20
_chemical_name_common            064-1
_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                   6.3351(4)
_cell_length_b                   10.3758(7)
_cell_length_c                   22.9687(17)
_cell_measurement_reflns_used    1868
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      21.27
_cell_measurement_theta_min      3.55
_cell_volume                     1509.77(18)
_computing_cell_refinement       'SAINT v.7.68a (Bruker, 2010)'
_computing_data_collection       'APEX2 v2010.1-2 (Bruker, 2010)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL v.6.12 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.936
_diffrn_measured_fraction_theta_max 0.936
_diffrn_measurement_device_type  'Bruker Nonius X8APEX-II CCD'
_diffrn_measurement_method       '\w and \f 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  0.0517
_diffrn_reflns_av_sigmaI/netI    0.0960
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            6537
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         3.55
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.739
_exptl_absorpt_correction_T_max  0.973
_exptl_absorpt_correction_T_min  0.461
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.673
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.434
_refine_diff_density_min         -0.482
_refine_diff_density_rms         0.086
_refine_ls_abs_structure_details 'Flack (1983), 961 Friedel pairs'
_refine_ls_abs_structure_Flack   0.003(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.982
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         2469
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.982
_refine_ls_R_factor_all          0.0860
_refine_ls_R_factor_gt           0.0464
_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^)+(0.0311P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0765
_refine_ls_wR_factor_ref         0.0859
_reflns_number_gt                1682
_reflns_number_total             2469
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo4020326_si_007.cif
_cod_data_source_block           mb1105
_cod_database_code               4029098