Structural distortions in M[E(SiMe₃)₂]₃ complexes (M = group 15, f-element; E = N, CH): is three a crowd?
Boyde, Nicholas C.; Chmely, Stephen C.; Hanusa, Timothy P.; Rheingold, Arnold L.; Brennessel, William W.; Inorganic chemistry 53 (2014) 9703–9714; doi:10.1021/ic501232z

data_4340977
_publ_section_title
;
 Structural distortions in M[E(SiMe&#x2083;)&#x2082;]&#x2083; complexes (M
 = group 15, f-element; E = N, CH): is three a crowd?
;
_journal_issue                   18
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9703
_journal_page_last               9714
_journal_paper_doi               10.1021/ic501232z
_journal_volume                  53
_journal_year                    2014
_chemical_formula_sum            'C18 H54 As N3 Si6'
_chemical_formula_weight         556.10
_chemical_name_systematic
; 
 ? 
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.2760(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.4874(4)
_cell_length_b                   20.6151(9)
_cell_length_c                   18.2372(8)
_cell_measurement_reflns_used    9916
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.40
_cell_volume                     3185.7(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0353
_diffrn_reflns_av_sigmaI/netI    0.0328
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23641
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         1.49
_exptl_absorpt_coefficient_mu    1.303
_exptl_absorpt_correction_T_max  0.7806
_exptl_absorpt_correction_T_min  0.6959
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.159
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blade
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.927
_refine_diff_density_min         -0.608
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         5817
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0591
_refine_ls_R_factor_gt           0.0478
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0680P)^2^+4.7000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1278
_refine_ls_wR_factor_ref         0.1368
_reflns_number_gt                4799
_reflns_number_total             5817
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic501232z_si_002.cif
_cod_data_source_block           vand63
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4340976--4340978.cif.
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4340977