Group 1 and 2 cyclic (alkyl)(amino)carbene complexes.
Turner, Zoë R; Buffet, Jean-Charles; Dalton transactions (Cambridge, England : 2003) 44 (2015) 12985–12989; doi:10.1039/c5dt02270c

data_7035547
_publ_section_title
;
 Group 1 and 2 cyclic (alkyl)(amino)carbene complexes.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12985
_journal_page_last               12989
_journal_paper_doi               10.1039/c5dt02270c
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C39 H79 Ba N3 O Si4'
_chemical_formula_sum            'C39 H79 Ba N3 O Si4'
_chemical_formula_weight         855.75
_chemical_name_systematic
;
 ?
;
_chemical_properties_physical    'Air-sensitive, Moisture-sensitive'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2015-04-17 deposited with the CCDC.
2015-06-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.4070(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.09010(10)
_cell_length_b                   18.1027(2)
_cell_length_c                   23.5571(2)
_cell_measurement_temperature    150(2)
_cell_volume                     5100.39(8)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_molecular_graphics
;
ORTEP3 for Windows. Farrugia, L. J. J. Appl. Cryst. 1997, 30, 565.
;
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution
;
SUPERFLIP. Palatinus, L.; Chapuis, G. 
J. Appl. Cryst. 2007, 40, 786-790.
;
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 10.4102
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0332
_diffrn_reflns_av_unetI/netI     0.0175
_diffrn_reflns_laue_measured_fraction_full 1.000
_diffrn_reflns_laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            60384
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.100
_diffrn_reflns_theta_min         3.091
_exptl_absorpt_coefficient_mu    7.157
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.39565
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.114
_exptl_crystal_description       shard
_exptl_crystal_F_000             1816
_exptl_crystal_size_max          0.174
_exptl_crystal_size_mid          0.077
_exptl_crystal_size_min          0.066
_platon_squeeze_details
;
Platon-Squeeze was used to account for disordered solvent
that could not be refined in a satisfactory manner. 88 
electrons per unit cell relates to two disordered pentane
molecules (from which the crystals were grown).
;
_refine_diff_density_max         0.566
_refine_diff_density_min         -0.596
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     488
_refine_ls_number_reflns         10543
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0250
_refine_ls_R_factor_gt           0.0233
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0303P)^2^+2.0575P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0587
_refine_ls_wR_factor_ref         0.0599
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9928
_reflns_number_total             10543
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt02270c2.cif
_cod_data_source_block           027ZRT15
_cod_depositor_comments
'Adding full bibliography for 7035544--7035548.cif.'
_cod_database_code               7035547
_shelx_estimated_absorpt_t_min   0.369
_shelx_estimated_absorpt_t_max   0.649
_platon_squeeze_void_probe_radius 1.20
_shelxl_version_number           2014-3
_shelx_res_checksum              37797