Controlled homocatenation of boron on a transition metal.
Braunschweig, Holger; Ye, Qing; Vargas, Alfredo; Dewhurst, Rian D.; Radacki, Krzysztof; Damme, Alexander; Nature chemistry 4 (2012) 563–567; doi:10.1038/nchem.1379

data_1508210
_publ_section_title
;
 Controlled homocatenation of boron on a transition metal.
;
_journal_issue                   7
_journal_name_full               'Nature chemistry'
_journal_page_first              563
_journal_page_last               567
_journal_paper_doi               10.1038/nchem.1379
_journal_volume                  4
_journal_year                    2012
_chemical_formula_moiety         'C36 H62 B4 Fe2 N2 O4 Si4'
_chemical_formula_sum            'C36 H62 B4 Fe2 N2 O4 Si4'
_chemical_formula_weight         854.18
_chemical_name_common
;
?
;
_chemical_name_systematic
; 
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 126.076(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   27.394(4)
_cell_length_b                   9.3733(13)
_cell_length_c                   21.725(3)
_cell_measurement_reflns_used    8072
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.97
_cell_measurement_theta_min      2.36
_cell_volume                     4508.6(11)
_computing_cell_refinement       'Saint+ ver. 7.68A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2010.3 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. 7.68A (Bruker AXS)'
_computing_molecular_graphics    'XP ver. 5.1 (Bruker AXS, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            28406
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.787
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6244
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs 2008/1 (Brucker 2008)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.258
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1808
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.380
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         4406
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0358
_refine_ls_R_factor_gt           0.0274
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0305P)^2^+6.1218P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0711
_reflns_number_gt                3770
_reflns_number_total             4406
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nchem.1379-s3.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        4508.7(10)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1508210