Heavy metal boryl chemistry: complexes of cadmium, mercury and lead
Andrey V. Protchenko; Deepak Dange; Andrew D. Schwarz; Christina Y. Tang; Nicholas Phillips; Philip Mountford; Cameron Jones; Simon Aldridge; Chem.Commun. 50 (2014) 3841–; doi:10.1039/C4CC00697F

data_7112171
_publ_section_title
;
 Heavy metal boryl chemistry: complexes of cadmium, mercury and lead
;
_journal_name_full               Chem.Commun.
_journal_page_first              3841
_journal_paper_doi               10.1039/C4CC00697F
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C52 H72 B2 Cd1 N4'
_chemical_formula_sum            'C52 H72 B2 Cd N4'
_chemical_formula_weight         887.19
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 92.7909(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.42985(13)
_cell_length_b                   12.96843(11)
_cell_length_c                   25.1614(2)
_cell_measurement_reflns_used    27616
_cell_measurement_temperature    150
_cell_measurement_theta_max      77
_cell_measurement_theta_min      3
_cell_volume                     5028.85(7)
_computing_cell_refinement       'USER DEFINED CELL REFINEMENT'
_computing_data_collection       'USER DEFINED DATA COLLECTION'
_computing_data_reduction        'CrysAlis, (Oxford Diffraction, 2002)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device       Serial
_diffrn_measurement_device_type  Unknown
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.029
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            56490
_diffrn_reflns_theta_full        75.186
_diffrn_reflns_theta_max         76.721
_diffrn_reflns_theta_min         2.867
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.738
_exptl_absorpt_correction_T_max  0.47
_exptl_absorpt_correction_T_min  0.47
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1880
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.78
_refine_diff_density_min         -0.44
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0447
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     550
_refine_ls_number_reflns         9407
_refine_ls_number_restraints     42
_refine_ls_R_factor_all          0.0312
_refine_ls_R_factor_gt           0.0281
_refine_ls_shift/su_max          0.0032286
_refine_ls_shift/su_mean         0.0000718
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 -3.97 -22.4 -10.5 -8.56 -5.24 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0105
_refine_ls_wR_factor_gt          0.0102
_refine_ls_wR_factor_ref         0.0101
_reflns_limit_h_max              19
_reflns_limit_h_min              -19
_reflns_limit_k_max              16
_reflns_limit_k_min              0
_reflns_limit_l_max              31
_reflns_limit_l_min              0
_reflns_number_gt                9675
_reflns_number_total             10534
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   1.97
_oxford_diffrn_Wilson_scale      0.23
_oxford_refine_ls_r_factor_ref   0.0272
_oxford_refine_ls_scale          2.0941(11)
_oxford_reflns_number_all        10495
_oxford_reflns_threshold_expression_ref I>0.0\s(I)
_cod_data_source_file            c4cc00697f2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_original_formula_sum        'C52 H72 B2 Cd1 N4'
_cod_database_code               7112171