Synthesis, characterisation and reactivity of germanium(ii) amidinate and guanidinate complexes
Jones, Cameron; Rose, Richard P.; Stasch, Andreas; Dalton Transactions  (2008) 2871–2878; doi:10.1039/b801168k

data_7003906
_publ_section_title
;
 Synthesis, characterisation and reactivity of germanium(ii) amidinate
 and guanidinate complexes
;
_journal_issue                   21
_journal_name_full               'Dalton Transactions'
_journal_page_first              2871
_journal_page_last               2878
_journal_paper_doi               10.1039/b801168k
_journal_year                    2008
_chemical_formula_sum            'C50 H70 Ge N4'
_chemical_formula_weight         799.69
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.22(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.697(2)
_cell_length_b                   15.758(3)
_cell_length_c                   27.692(6)
_cell_measurement_temperature    150(2)
_cell_volume                     4666.8(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.1827
_diffrn_reflns_av_sigmaI/netI    0.2016
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            28378
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    0.692
_exptl_absorpt_correction_T_max  0.923
_exptl_absorpt_correction_T_min  0.853
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.138
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1720
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     513
_refine_ls_number_reflns         8212
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1845
_refine_ls_R_factor_gt           0.0840
_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^)+(0.0240P)^2^+4.7509P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1215
_refine_ls_wR_factor_ref         0.1501
_reflns_number_gt                4273
_reflns_number_total             8212
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b801168k.txt
_cod_data_source_block           compound1
_cod_original_cell_volume        4666.7(16)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7003906