Preparation and Coordination Chemistry of Bidentate Benzimidazoline-2-germylenes
Zabula, Alexander V.; Hahn, F. Ekkehardt; Pape, Tania; Hepp, Alexander; Organometallics 26 (2007) 1972–; doi:10.1021/om070054i

data_4073076
_publ_section_title
;
 Preparation and Coordination Chemistry of Bidentate
 Benzimidazoline-2-germylenes
;
_journal_issue                   8
_journal_name_full               Organometallics
_journal_page_first              1972
_journal_paper_doi               10.1021/om070054i
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C26 H38 Ge2 N4'
_chemical_formula_weight         551.78
_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                98.641(4)
_cell_angle_beta                 92.131(4)
_cell_angle_gamma                99.696(5)
_cell_formula_units_Z            1
_cell_length_a                   5.8909(15)
_cell_length_b                   6.2233(15)
_cell_length_c                   18.540(5)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      1
_cell_volume                     661.0(3)
_computing_cell_refinement       'SAINT (Bruker AXS, 2000)'
_computing_data_collection       'SMART (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT,SADABS (Bruker AXS, 2000)'
_computing_molecular_graphics
;
ORTEP3,L.J. Farrugia, J. Appl. Cryst. (1997) 30, 565
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 80
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'Omega and Phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            7455
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.11
_exptl_absorpt_coefficient_mu    2.294
_exptl_absorpt_correction_T_max  0.8747
_exptl_absorpt_correction_T_min  0.4120
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 Corrections were done with the SADABS program, utilizing the none merged
 raw data obtained from the integration process. Integration and final cell
 refinement were done with SAINT.

 SADABS reports ratio of Tmin/Tmax =  0.771438 

;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'transparent needles'
_exptl_crystal_F_000             286
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.968
_refine_diff_density_min         -0.555
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         3737
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0405
_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^)+(0.0470P)^2^+0.1317P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0931
_refine_ls_wR_factor_ref         0.0964
_reflns_number_gt                3222
_reflns_number_total             3737
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om070054isi20070118_062010.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4073076