Synthetic, Structural and Theoretical Studies of Amidinate and Guanidinate Stabilised Germanium(I) Dimers
Cameron Jones; Shaun P. Green; Peter Junk; Kai-Alexander Lippert; Andreas Stasch; Chemical Communications  (2006) –; doi:10.1039/b610645e

data_7101448
_publ_section_title
;
Synthetic, Structural and Theoretical Studies of
Amidinate and Guanidinate Stabilised Germanium(I) Dimers
;
_journal_issue                   38
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/b610645e
_journal_year                    2006
_chemical_formula_sum            'C31 H48 Cl Ge N3'
_chemical_formula_weight         570.76
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 100.69(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.620(4)
_cell_length_b                   12.441(3)
_cell_length_c                   14.419(3)
_cell_measurement_temperature    150(2)
_cell_volume                     3106.1(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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  0.0401
_diffrn_reflns_av_sigmaI/netI    0.0493
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            11700
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.33
_exptl_absorpt_coefficient_mu    1.095
_exptl_absorpt_correction_T_max  0.853
_exptl_absorpt_correction_T_min  0.771
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.221
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.658
_refine_diff_density_min         -0.733
_refine_diff_density_rms         0.072
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.20(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.157
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     357
_refine_ls_number_reflns         6076
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.157
_refine_ls_R_factor_all          0.0683
_refine_ls_R_factor_gt           0.0643
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0124P)^2^+12.6456P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1349
_refine_ls_wR_factor_ref         0.1374
_reflns_number_gt                5714
_reflns_number_total             6076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b610645e.txt
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7101448