The diverse reactivity of NOBF<sub>4</sub> towards silylene, disilene, germylene and stannylene.
Parvin, Nasrina; Sen, Nilanjana; Muhasina, Puthan Veetil; Tothadi, Srinu; Parameswaran, Pattiyil; Khan, Shabana; Chemical communications (Cambridge, England) 57 (2021) 5008–5011; doi:10.1039/d1cc01034d

data_7128245
_publ_section_title
;
 The diverse reactivity of NOBF<sub>4</sub> towards silylene, disilene,
 germylene and stannylene.
;
_journal_issue                   41
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              5008
_journal_page_last               5011
_journal_paper_doi               10.1039/d1cc01034d
_journal_volume                  57
_journal_year                    2021
_chemical_formula_moiety         'C21 H41 B F3 Ge N3 O Si2'
_chemical_formula_sum            'C21 H41 B F3 Ge N3 O Si2'
_chemical_formula_weight         548.15
_space_group_crystal_system      monoclinic
_space_group_IT_number           7
_space_group_name_Hall           'P -2yac'
_space_group_name_H-M_alt        'P 1 n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2021-04-07
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-04-11 deposited with the CCDC.	2021-04-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.21(9)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.74(2)
_cell_length_b                   17.01(4)
_cell_length_c                   18.55(3)
_cell_measurement_reflns_used    9846
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      21.85
_cell_measurement_theta_min      2.38
_cell_volume                     2746(10)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_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  0.2063
_diffrn_reflns_av_unetI/netI     0.1343
_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       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            71335
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         2.205
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.240
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.5636
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2014/5 (Bruker,2014/5) was used for absorption correction. wR2(int) was 0.1393 before and 0.0972 after correction. The Ratio of minimum to maximum transmission is 0.7561. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_description       block
_exptl_crystal_F_000             1152
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.910
_refine_diff_density_min         -0.914
_refine_diff_density_rms         0.110
_refine_ls_abs_structure_details
;
 Flack x determined using 2301 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.072(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     601
_refine_ls_number_reflns         9677
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.1262
_refine_ls_R_factor_gt           0.0675
_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^)+(0.0370P)^2^+7.3952P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1184
_refine_ls_wR_factor_ref         0.1409
_reflns_Friedel_coverage         0.995
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                6457
_reflns_number_total             9677
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc01034d2.cif
_cod_data_source_block           4
_cod_depositor_comments
'Adding full bibliography for 7128241--7128247.cif.'
_cod_original_cell_volume        2748(11)
_cod_database_code               7128245
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.907
_shelx_estimated_absorpt_t_min   0.836
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C7(H7), C8(H8), C9(H9), C10(H10), C11(H11), C39(H39), C40(H40), C41(H41),
 C42(H42), C43(H43)
2.b Idealised Me refined as rotating group:
 C3(H3A,H3B,H3C), C4(H4A,H4B,H4C), C5(H5A,H5B,H5C), C13(H13A,H13B,H13C),
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C17(H17A,H17B,
 H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C), C21(H21A,
 H21B,H21C), C23(H23A,H23B,H23C), C24(H24A,H24B,H24C), C25(H25A,H25B,H25C),
 C26(H26A,H26B,H26C), C27(H27A,H27B,H27C), C28(H28A,H28B,H28C), C30(H30A,H30B,
 H30C), C31(H31A,H31B,H31C), C32(H32A,H32B,H32C), C35(H35A,H35B,H35C), C36(H36A,
 H36B,H36C), C37(H37A,H37B,H37C)
;
_shelx_res_checksum              19469
_olex2_submission_special_instructions 'No special instructions were received'