A cyclopentadienyl functionalized silylene – a flexible ligand for Si- and C-coordination
Kaufmann, Sebastian; Krätschmer, Frederic; Köppe, Ralf; Schon, Thorben; Schoo, Christoph; Roesky, Peter W.; Chemical Science 11 (2020) 12446–12452; doi:10.1039/D0SC04174B

data_1559718
_publ_section_title
;
 A cyclopentadienyl functionalized silylene -- a flexible ligand for Si-
 and C-coordination
;
_journal_issue                   46
_journal_name_full               'Chemical Science'
_journal_page_first              12446
_journal_page_last               12452
_journal_paper_doi               10.1039/D0SC04174B
_journal_volume                  11
_journal_year                    2020
_chemical_formula_moiety         'C24 H36 N2 Si'
_chemical_formula_sum            'C24 H36 N2 Si'
_chemical_formula_weight         380.64
_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_date             2020-03-24
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-07-29 deposited with the CCDC.	2020-10-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.50(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   14.931(3)
_cell_length_b                   8.6942(17)
_cell_length_c                   18.187(4)
_cell_measurement_reflns_used    8951
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.07
_cell_measurement_theta_min      2.35
_cell_volume                     2251.6(9)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'CMOS pixel detector'
_diffrn_detector_area_resol_mean 5.81
_diffrn_detector_type            'Dectris Pilatus 100k'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  Stradivari
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'single reflection optic'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0342
_diffrn_reflns_av_unetI/netI     0.0513
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            10902
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.061
_diffrn_reflns_theta_min         2.348
_diffrn_source                   'Mo LFF Sealed Tube'
_diffrn_source_type              'Xenocs Genix3D microfocus'
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_T_max  0.9793
_exptl_absorpt_correction_T_min  0.6496
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE X-Red32, absorption correction by Gaussian integration, analogous to
P. Coppens, "The Evaluation of Absorption and Extinction in Single-Crystal
Structure Analysis", published in: F. R. Ahmed (Editor), "Crystallographic
Computing", Munksgaard, Copenhagen (1970), 255 - 270.
Afterwards scaling of reflection intensities was performed within STOE LANA.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.123
_exptl_crystal_description       plate
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.406
_exptl_crystal_size_mid          0.284
_exptl_crystal_size_min          0.117
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.246
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.927
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     258
_refine_ls_number_reflns         4404
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.927
_refine_ls_R_factor_all          0.0514
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0482P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0867
_refine_ls_wR_factor_ref         0.0905
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3270
_reflns_number_total             4404
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0sc04174b2.cif
_cod_data_source_block           skp040_p2(1)uc
_cod_original_cell_volume        2251.7(9)
_cod_database_code               1559718
_shelx_shelxl_version_number     2018/3
_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:
 C12(H12), C13(H13), C14(H14), C15(H15), C16(H16)
2.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C18(H18A,
 H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C), C22(H22A,H22B,H22C),
 C23(H23A,H23B,H23C), C24(H24A,H24B,H24C)
;
_shelx_res_checksum              91164
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_submission_special_instructions 'No special instructions were received'