Supramolecular assemblies of germanium(II) halides with O-, S- and Se-donor macrocycles - the effects of donor atom type upon structure.
Hector, Andrew L.; Levason, William; Reid, Gillian; Webster, Michael; Zhang, Wenjian; Dalton transactions (Cambridge, England : 2003) 40 (2011) 694–700; doi:10.1039/c0dt00749h

data_7014403
_publ_section_title
;
 Supramolecular assemblies of germanium(II) halides with O-, S- and
 Se-donor macrocycles - the effects of donor atom type upon structure.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              694
_journal_page_last               700
_journal_paper_doi               10.1039/c0dt00749h
_journal_volume                  40
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C6 H12 Cl2 Ge Se2'
_chemical_formula_sum            'C6 H12 Cl2 Ge Se2'
_chemical_formula_weight         385.57
_chemical_name_common
(1,5-diselenacyclo-octane-Se,Se')dichlorogermanium(ii)
_chemical_name_systematic
;
(1,5-diselenacyclo-octane-Se,Se')dichlorogermanium(II)
;
_space_group_IT_number           36
_space_group_name_Hall           'C 2c -2'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c -2'
_symmetry_space_group_name_H-M   'C m c 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2010-03-23
_audit_creation_method           'SHELXL-97 + hand edit'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.049(2)
_cell_length_b                   11.602(3)
_cell_length_c                   10.610(2)
_cell_measurement_reflns_used    745
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1113.9(4)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker-Nonius 95mm CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0444
_diffrn_reflns_av_sigmaI/netI    0.0519
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5289
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.44
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    9.707
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'G.M. Sheldrick, (2007). SADABS. Version 2007/2. Bruker AXS Inc.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.685
_refine_diff_density_min         -0.617
_refine_diff_density_rms         0.119
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(2)
_refine_ls_extinction_coef       0.0025(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     59
_refine_ls_number_reflns         1243
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0354
_refine_ls_R_factor_gt           0.0302
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0210P)^2^+1.4519P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0671
_refine_ls_wR_factor_ref         0.0704
_reflns_number_gt                1140
_reflns_number_total             1243
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            C0DT00749H.TXT
_cod_data_source_block           10wz304b
_cod_original_cell_volume        1114.0(4)
_cod_database_code               7014403