1,2-Migratory ring expansion of a BN-naphthalene.
Mediavilla, Braden A.; Siegler, Maxime A.; Klausen, Rebekka S.; Organic & biomolecular chemistry 23 (2025) 10321–10329; doi:10.1039/d5ob01286d

data_7160829
_publ_section_title
;
 1,2-Migratory ring expansion of a BN-naphthalene.
;
_journal_issue                   45
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              10321
_journal_page_last               10329
_journal_paper_doi               10.1039/d5ob01286d
_journal_volume                  23
_journal_year                    2025
_chemical_formula_moiety         'C16 H15 B Cl N'
_chemical_formula_sum            'C16 H15 B Cl N'
_chemical_formula_weight         267.55
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2025-07-08 deposited with the CCDC.	2025-10-23 downloaded from the CCDC.
;
_cell_angle_alpha                100.8560(17)
_cell_angle_beta                 93.9083(17)
_cell_angle_gamma                108.2052(19)
_cell_formula_units_Z            2
_cell_length_a                   8.15626(17)
_cell_length_b                   8.98468(18)
_cell_length_c                   11.7166(2)
_cell_measurement_reflns_used    17540
_cell_measurement_temperature    110.00(10)
_cell_measurement_theta_max      72.0940
_cell_measurement_theta_min      3.8630
_cell_volume                     793.58(3)
_computing_cell_refinement       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_molecular_graphics    'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT-2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      110.00(10)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0224
_diffrn_reflns_av_unetI/netI     0.0099
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            25296
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         71.873
_diffrn_reflns_theta_min         3.877
_diffrn_source                   'Rotating-anode X-ray tube'
_exptl_absorpt_coefficient_mu    1.992
_exptl_absorpt_correction_T_max  0.833
_exptl_absorpt_correction_T_min  0.737
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.43.90 (Rigaku Oxford Diffraction, 2023)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.120
_exptl_crystal_description       block
_exptl_crystal_F_000             280
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.151
_exptl_crystal_size_min          0.126
_refine_diff_density_max         0.256
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.0018(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         3103
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0344
_refine_ls_R_factor_gt           0.0340
_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^)+(0.0396P)^2^+0.4231P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.0891
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3047
_reflns_number_total             3103
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5ob01286d2.cif
_cod_data_source_block           N_benzyl_2_chloromethyl_borazaronaphthalene
_cod_depositor_comments
'Adding full bibliography for 7160827--7160829.cif.'
_cod_database_code               7160829
_shelx_shelxl_version_number     2019/3
_oxdiff_exptl_absorpt_empirical_full_min 0.553
_oxdiff_exptl_absorpt_empirical_full_max 2.154
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
- B-factor correction
;
_shelx_res_checksum              11474
_shelx_fab_checksum              91207