Using the FpXylBH<sub>2</sub>•SMe<sub>2</sub> reagent for the regioselective synthesis of cyclic bis(alkenyl)boranes.
Škoch, Karel; Daniliuc, Constantin G.; Kehr, Gerald; Erker, Gerhard; Chemical communications (Cambridge, England) 56 (2020) 12178–12181; doi:10.1039/d0cc05230b

data_7127154
_publ_section_title
;
 Using the FpXylBH<sub>2</sub>&#x2022;SMe<sub>2</sub> reagent for the
 regioselective synthesis of cyclic bis(alkenyl)boranes.
;
_journal_issue                   81
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              12178
_journal_page_last               12181
_journal_paper_doi               10.1039/d0cc05230b
_journal_volume                  56
_journal_year                    2020
_chemical_formula_sum            'C32 H50 B2 O2 Si4'
_chemical_formula_weight         600.70
_space_group_crystal_system      orthorhombic
_space_group_IT_number           43
_space_group_name_Hall           'F 2 -2d'
_space_group_name_H-M_alt        'F d d 2'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           'APEX3 v2019.1-0'
_audit_update_record
;
2020-09-01 deposited with the CCDC.	2020-09-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   18.4614(6)
_cell_length_b                   34.6525(10)
_cell_length_c                   11.8617(4)
_cell_measurement_reflns_used    9971
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      26.6401
_cell_measurement_theta_min      2.5001
_cell_volume                     7588.3(4)
_computing_cell_refinement       'SAINT V8.40A (Bruker Nano, Inc., 2019)'
_computing_data_collection       'APEX3 v2019.1-0'
_computing_data_reduction        'SAINT V8.40A (Bruker Nano, Inc., 2019)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 958)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON III Diffractometer'
_diffrn_measurement_method       'phi / omega scans'
_diffrn_radiation_monochromator  'MX mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0623
_diffrn_reflns_av_unetI/netI     0.0299
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            33285
_diffrn_reflns_theta_full        26.73
_diffrn_reflns_theta_max         26.73
_diffrn_reflns_theta_min         2.35
_diffrn_source                   'Mo Ims'
_diffrn_source_type              'micro focus tube'
_exptl_absorpt_coefficient_mu    0.181
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.89
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 Bruker AXS area detector scaling and absorption correction.
Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.052
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.280
_exptl_crystal_size_mid          0.143
_exptl_crystal_size_min          0.105
_refine_diff_density_max         0.271
_refine_diff_density_min         -0.137
_refine_ls_abs_structure_details
;

Flack x determined using 1645 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.07(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3994
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0373
_refine_ls_R_factor_gt           0.0332
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0431P)^2^+4.9465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0828
_reflns_number_gt                3695
_reflns_number_total             3994
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc05230b2.cif
_cod_data_source_block           erk9861
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-Scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7127153--7127160.cif.
;
_cod_database_code               7127154
_shelx_res_checksum              470