Versatile 1,2- and 1,3-Dipole Behavior of the 1-Arsa-3-Germaallene Tip(t-Bu)Ge═C═AsMes*: Formation of a Heterocyclic Arsa(germa)carbene (AsGeHC)
Ghereg, Dumitru; Sotiropoulos, Jean-Marc; Escudié, Jean; Miqueu, Karinne; Matioszek, Dimitri; Ladeira, Sonia; Saffon-Merceron, Nathalie; Organometallics 31 (2012) 930–; doi:10.1021/om200968x

data_4067971
_publ_section_title
;
 Versatile 1,2- and 1,3-Dipole Behavior of the 1-Arsa-3-Germaallene
 Tip(t-Bu)Ge&#x2550;C&#x2550;AsMes*: Formation of a Heterocyclic
 Arsa(germa)carbene (AsGeHC)
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              930
_journal_paper_doi               10.1021/om200968x
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C51.5 H83 As Ge N O'
_chemical_formula_weight         879.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                98.1380(10)
_cell_angle_beta                 100.0020(10)
_cell_angle_gamma                105.7760(10)
_cell_formula_units_Z            2
_cell_length_a                   11.0351(5)
_cell_length_b                   12.2305(6)
_cell_length_c                   20.1455(10)
_cell_measurement_reflns_used    8006
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      27.75
_cell_measurement_theta_min      2.21
_cell_volume                     2525.1(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      193(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0419
_diffrn_reflns_av_sigmaI/netI    0.0593
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            34967
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         5.15
_exptl_absorpt_coefficient_mu    1.291
_exptl_absorpt_correction_T_max  0.7644
_exptl_absorpt_correction_T_min  0.4652
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.462
_refine_diff_density_min         -0.680
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     570
_refine_ls_number_reflns         12438
_refine_ls_number_restraints     112
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0738
_refine_ls_R_factor_gt           0.0413
_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^)+(0.0497P)^2^+0.4287P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0931
_refine_ls_wR_factor_ref         0.1056
_reflns_number_gt                8566
_reflns_number_total             12438
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200968x_si_002.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C51.50 H83 As Ge N O'
_cod_database_code               4067971