C19H21B6O13.5P
Beckett, Michael A.; Timmis, James; Horton, Peter N.; Hursthouse, Michael B.; Crystal Structure Report Archive  (2009) 702–; doi:

data_1520373
_publ_section_title
;
 C19H21B6O13.5P
;
_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              702
_journal_year                    2009
_chemical_formula_sum            'C19 H26 B6 O13.5 P'
_chemical_formula_weight         566.23
_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
_cell_angle_alpha                84.364(5)
_cell_angle_beta                 82.811(4)
_cell_angle_gamma                76.492(4)
_cell_formula_units_Z            4
_cell_length_a                   10.1076(10)
_cell_length_b                   13.0403(10)
_cell_length_c                   20.6260(15)
_cell_measurement_reflns_used    1919
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     2615.9(4)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_molecular_graphics    'ORTEP3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type
'Bruker-Nonius APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0655
_diffrn_reflns_av_sigmaI/netI    0.0665
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            35223
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    0.172
_exptl_absorpt_correction_T_max  0.9881
_exptl_absorpt_correction_T_min  0.9665
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Cut Block'
_exptl_crystal_F_000             1172
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.057
_refine_diff_density_min         -0.945
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     739
_refine_ls_number_reflns         11835
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.1042
_refine_ls_R_factor_gt           0.0749
_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^)+(0.0323P)^2^+7.2955P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1527
_refine_ls_wR_factor_ref         0.1730
_reflns_number_gt                8892
_reflns_number_total             11835
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-702.cif
_cod_data_source_block           2009src0115
_cod_depositor_comments
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Citation :
Beckett, Michael A. and Timmis, James and Horton, Peter N. and 
Hursthouse, Michael B. (2009) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/702)

More at:
http://ecrystals.chem.soton.ac.uk/702/

2022-12-09
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C38 H52 B12 O27 P2'
_cod_original_formula_weight         1132.46
_cod_original_formula_units_Z            2
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1520373