Chemistry of Boryllithium: Synthesis, Structure, and Reactivity
Yasutomo Segawa; Yuta Suzuki; Makoto Yamashita; Kyoko Nozaki; Journal of the American Chemical Society 130 (2008) 16069–16079; doi:10.1021/ja8057919

data_4108726
_publ_section_title
;
 Chemistry of Boryllithium: Synthesis, Structure, and Reactivity
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16069
_journal_page_last               16079
_journal_paper_doi               10.1021/ja8057919
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C27 H39 B N2'
_chemical_formula_weight         402.41
_chemical_name_systematic
; 
 ? 
;
_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                77.366(18)
_cell_angle_beta                 86.92(2)
_cell_angle_gamma                77.526(19)
_cell_formula_units_Z            2
_cell_length_a                   7.413(5)
_cell_length_b                   9.362(7)
_cell_length_c                   18.458(14)
_cell_measurement_reflns_used    1843
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      24.9914
_cell_measurement_theta_min      3.0258
_cell_volume                     1220.4(15)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    ORTEP-III
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'RIGAKU/MSC Meacury CCD'
_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     0.71070
_diffrn_reflns_av_R_equivalents  0.0454
_diffrn_reflns_av_sigmaI/netI    0.0851
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            7891
_diffrn_reflns_theta_full        24.95
_diffrn_reflns_theta_max         24.95
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.062
_exptl_absorpt_correction_T_max  0.9969
_exptl_absorpt_correction_T_min  0.9785
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.095
_exptl_crystal_description       Prism
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.366
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         4168
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.1329
_refine_ls_R_factor_gt           0.0925
_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^)+(0.1009P)^2^+1.8910P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2483
_refine_ls_wR_factor_ref         0.2771
_reflns_number_gt                2644
_reflns_number_total             4168
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8057919_si_002_11.cif
_cod_data_source_block           55
_cod_original_cell_volume        1220.5(15)
_cod_database_code               4108726