Reversible Intramolecular C-C Bond Formation/Breaking and Color Switching Mediated by a N,C-Chelate in (2-ph-py)BMes2 and (5-BMes2-2-ph-py)BMes2
Ying-Li Rao; Hazem Amarne; Shu-Bin Zhao; Theresa M. McCormick; Sanela Martić; Yi Sun; Rui-Yao Wang; Suning Wang; Journal of the American Chemical Society 130 (2008) 12898–12900; doi:10.1021/ja8052046

data_4108409
_publ_section_title
;
 Reversible Intramolecular C-C Bond Formation/Breaking and Color Switching
 Mediated by a N,C-Chelate in (2-ph-py)BMes2 and (5-BMes2-2-ph-py)BMes2
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12898
_journal_page_last               12900
_journal_paper_doi               10.1021/ja8052046
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C39 H42 B Cl2 N'
_chemical_formula_weight         606.45
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                107.380(8)
_cell_angle_beta                 101.907(8)
_cell_angle_gamma                102.516(8)
_cell_formula_units_Z            2
_cell_length_a                   12.021(8)
_cell_length_b                   12.104(8)
_cell_length_c                   13.193(9)
_cell_measurement_reflns_used    1170
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     1711(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1069
_diffrn_reflns_av_sigmaI/netI    0.1709
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            18803
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.217
_exptl_absorpt_correction_T_max  0.9786
_exptl_absorpt_correction_T_min  0.9579
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_description       Block
_exptl_crystal_F_000             644
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.265
_refine_diff_density_min         -0.337
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.911
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     401
_refine_ls_number_reflns         7297
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.911
_refine_ls_R_factor_all          0.2642
_refine_ls_R_factor_gt           0.0878
_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^)+(0.1300P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2033
_refine_ls_wR_factor_ref         0.2942
_reflns_number_gt                2230
_reflns_number_total             7297
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8052046_si_001_yr3.cif
_cod_data_source_block           yr3
_cod_database_code               4108409