Band Structure Engineering by Substitutional Doping in Solid-State Solutions of [5-Me-PLY(O,O)]2B(1-x)Bex Radical Crystals.
Bag, Pradip; Itkis, Mikhail E.; Stekovic, Dejan; Pal, Sushanta K.; Tham, Fook S.; Haddon, Robert C.; Journal of the American Chemical Society 137 (2015) 10000–10008; doi:10.1021/jacs.5b06145

data_4124341
_publ_section_title
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 Band Structure Engineering by Substitutional Doping in Solid-State
 Solutions of [5-Me-PLY(O,O)]2B(1-x)Bex Radical Crystals.
;
_journal_issue                   31
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10000
_journal_page_last               10008
_journal_paper_doi               10.1021/jacs.5b06145
_journal_volume                  137
_journal_year                    2015
_chemical_formula_sum            'C28 H18 B0.35 Be0.65 O4'
_chemical_formula_weight         428.06
_chemical_name_systematic
; 
 ? 
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 106.1028(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.5678(3)
_cell_length_b                   23.4442(9)
_cell_length_c                   11.6354(4)
_cell_measurement_reflns_used    9845
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.57
_cell_measurement_theta_min      2.52
_cell_volume                     1983.37(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0272
_diffrn_reflns_av_unetI/netI     0.0150
_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       -10
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            55420
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.504
_diffrn_reflns_theta_min         1.737
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'prism frag'
_exptl_crystal_F_000             889
_exptl_crystal_size_max          0.518
_exptl_crystal_size_mid          0.434
_exptl_crystal_size_min          0.132
_exptl_transmission_factor_max   0.746
_exptl_transmission_factor_min   0.701
_refine_diff_density_max         0.324
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     564
_refine_ls_number_reflns         6059
_refine_ls_number_restraints     277
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0513
_refine_ls_R_factor_gt           0.0419
_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^)+(0.0623P)^2^+0.4471P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1101
_refine_ls_wR_factor_ref         0.1171
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5018
_reflns_number_total             6059
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja5b06145_si_005.cif
_cod_data_source_block           rh285pb20B80Be_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 
;
_cod_database_code               4124341
_shelx_estimated_absorpt_t_min   0.953
_shelx_estimated_absorpt_t_max   0.988
_shelxl_version_number           2013-4
_shelx_res_checksum              15897
_shelx_hkl_checksum              65199