Synthetic, structural and reaction chemistry of N-heterocyclic germylene and stannylene compounds featuring N-boryl substituents.
Kristinsdóttir, Lilja; Oldroyd, Nicola L.; Grabiner, Rachel; Knights, Alastair W.; Heilmann, Andreas; Protchenko, Andrey V.; Niu, Haoyu; Kolychev, Eugene L.; Campos, Jesús; Hicks, Jamie; Christensen, Kirsten E.; Aldridge, Simon; Dalton transactions (Cambridge, England : 2003) 48 (2019) 11951–11960; doi:10.1039/c9dt02449b

data_7701709
_publ_section_title
;
 Synthetic, structural and reaction chemistry of N-heterocyclic germylene
 and stannylene compounds featuring N-boryl substituents.
;
_journal_issue                   31
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11951
_journal_page_last               11960
_journal_paper_doi               10.1039/c9dt02449b
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C55 H80 B2 N6'
_chemical_formula_sum            'C55 H80 B2 N6'
_chemical_formula_weight         846.87
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-06-09 deposited with the CCDC.	2019-07-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.7800(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.0773(2)
_cell_length_b                   13.78450(10)
_cell_length_c                   20.3735(2)
_cell_measurement_reflns_used    22811
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      74.0147
_cell_measurement_theta_min      3.2034
_cell_volume                     5279.78(9)
_computing_cell_refinement       'CrysAlisPro, (Agilent, 2011)'
_computing_data_collection       'SuperNova, (Oxford Diffraction, 2010)'
_computing_data_reduction        'CrysAlisPro, (Agilent, 2011)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Oxford Diffraction SuperNova'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.0274
_diffrn_reflns_av_unetI/netI     0.0202
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            42784
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.182
_diffrn_reflns_theta_min         3.890
_exptl_absorpt_coefficient_mu    0.463
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78231
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, (Agilent, 2011)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.065
_exptl_crystal_description       block
_exptl_crystal_F_000             1848
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.230
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     592
_refine_ls_number_reflns         10581
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0518
_refine_ls_R_factor_gt           0.0460
_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^)+(0.0685P)^2^+1.3775P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1235
_refine_ls_wR_factor_ref         0.1294
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9261
_reflns_number_total             10581
_reflns_threshold_expression     'I > 2\s(I)'
_oxford_structure_analysis_title 111nkjc15
_cod_data_source_file            c9dt02449b2.cif
_cod_data_source_block           (L2)H2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7701709
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              29411