# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2022

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_aaa
_database_code_depnum_ccdc_archive 'CCDC 2182403'
loop_
_audit_author_name
_audit_author_address
'Mengran Sun'
;University of Chinese Academy of Sciences 
China
;
_audit_update_record             
;
2022-09-05 deposited with the CCDC.	2022-09-07 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'Ge2 O4 Sr3 Te3'
_chemical_formula_weight         854.84

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
Ge Ge 0.1547 1.8001 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Sr Sr -1.5307 3.2498 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Te Te -0.5308 1.6751 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      trigonal
_space_group_IT_number           160
_space_group_name_H-M_alt        'R 3 m :H'
_space_group_name_Hall           'R 3 -2"'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-y, x-y, z'
'-x+y, -x, z'
'-y, -x, z'
'-x+y, y, z'
'x, x-y, z'
'x+2/3, y+1/3, z+1/3'
'-y+2/3, x-y+1/3, z+1/3'
'-x+y+2/3, -x+1/3, z+1/3'
'-y+2/3, -x+1/3, z+1/3'
'-x+y+2/3, y+1/3, z+1/3'
'x+2/3, x-y+1/3, z+1/3'
'x+1/3, y+2/3, z+2/3'
'-y+1/3, x-y+2/3, z+2/3'
'-x+y+1/3, -x+2/3, z+2/3'
'-y+1/3, -x+2/3, z+2/3'
'-x+y+1/3, y+2/3, z+2/3'
'x+1/3, x-y+2/3, z+2/3'

_cell_length_a                   10.5223(18)
_cell_length_b                   10.5223(18)
_cell_length_c                   8.680(2)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_volume                     832.3(3)
_cell_formula_units_Z            3
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    1236
_cell_measurement_theta_min      3.24
_cell_measurement_theta_max      31.17

_exptl_crystal_description       block
_exptl_crystal_colour            yellow
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    5.117
_exptl_crystal_F_000             1098
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_exptl_absorpt_coefficient_mu    27.385
_shelx_estimated_absorpt_T_min   ?
_shelx_estimated_absorpt_T_max   ?
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.0238
_exptl_absorpt_correction_T_max  0.0689
_exptl_absorpt_process_details   ?
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            3004
_diffrn_reflns_av_unetI/netI     0.0686
_diffrn_reflns_av_R_equivalents  0.0673
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_theta_min         3.241
_diffrn_reflns_theta_max         33.254
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measured_fraction_theta_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.718
_diffrn_reflns_point_group_measured_fraction_full 0.820
_reflns_number_total             587
_reflns_number_gt                494
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.428
_reflns_Friedel_fraction_max     0.435
_reflns_Friedel_fraction_full    0.634

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'olex2.solve 1.3 (Bourhis et al., 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_refine_special_details          ?
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+0.0750P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   .
_refine_ls_hydrogen_treatment    undef
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_extinction_coef       0.00059(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_abs_structure_details 
;
 Flack x determined using 134 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.032(19)
_chemical_absolute_configuration ?
_refine_ls_number_reflns         587
_refine_ls_number_parameters     32
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0528
_refine_ls_R_factor_gt           0.0339
_refine_ls_wR_factor_ref         0.0530
_refine_ls_wR_factor_gt          0.0476
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_restrained_S_all      1.050
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
Ge1 Ge 0.6667 0.3333 0.7091(3) 0.0085(5) Uani 1 6 d S T P . .
Ge2 Ge 0.6667 0.3333 0.3096(3) 0.0160(6) Uani 1 6 d S T P . .
O1 O 0.7550(5) 0.5100(10) 0.7828(10) 0.016(2) Uani 1 2 d S T P . .
O2 O 0.6909(13) 0.382(3) 0.509(3) 0.026(9) Uani 0.3333 2 d S T P . .
Sr1 Sr 0.85759(7) 0.71518(14) 0.59615(15) 0.0148(4) Uani 1 2 d S T P . .
Te1 Te 0.40312(10) 0.20156(5) 0.21258(10) 0.0170(3) Uani 1 2 d S T P . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Ge1 O1 1.732(9) 3_665 ?
Ge1 O1 1.732(9) . ?
Ge1 O1 1.732(9) 2_655 ?
Ge1 O2 1.79(3) 3_665 ?
Ge1 O2 1.79(3) . ?
Ge1 O2 1.79(3) 2_655 ?
Ge2 O2 1.78(3) 3_665 ?
Ge2 O2 1.78(3) 2_655 ?
Ge2 O2 1.78(3) . ?
Ge2 Te1 2.5450(13) 2_655 ?
Ge2 Te1 2.5450(13) 3_665 ?
Ge2 Te1 2.5450(13) . ?
O1 Sr1 2.474(9) . ?
O1 Sr1 2.602(5) 9_565 ?
O1 Sr1 2.602(5) 8_655 ?
O2 O2 0.77(4) 3_665 ?
O2 O2 0.77(4) 2_655 ?
O2 Sr1 3.13(2) . ?
Sr1 O1 2.602(5) 14_654 ?
Sr1 O1 2.602(5) 15_664 ?
Sr1 Te1 3.4995(18) 3_665 ?
Sr1 Te1 3.5083(14) 13 ?
Sr1 Te1 3.5083(14) 14_655 ?
Sr1 Te1 3.6069(10) 7 ?
Sr1 Te1 3.6070(10) 8 ?
Sr1 Sr1 4.2642(7) 14_654 ?
Sr1 Sr1 4.2642(7) 8_655 ?
Sr1 Sr1 4.2642(7) 9_565 ?
Te1 Sr1 3.4994(18) 2_655 ?
Te1 Sr1 3.5083(14) 7_444 ?
Te1 Sr1 3.5083(14) 9_564 ?
Te1 Sr1 3.6069(10) 13_444 ?
Te1 Sr1 3.6069(10) 15_554 ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
O1 Ge1 O1 107.2(3) 3_665 . ?
O1 Ge1 O1 107.2(3) 3_665 2_655 ?
O1 Ge1 O1 107.2(3) . 2_655 ?
O1 Ge1 O2 97.4(8) 3_665 3_665 ?
O1 Ge1 O2 118.2(4) . 3_665 ?
O1 Ge1 O2 118.2(4) 2_655 3_665 ?
O1 Ge1 O2 118.2(4) 3_665 . ?
O1 Ge1 O2 97.4(8) . . ?
O1 Ge1 O2 118.2(4) 2_655 . ?
O2 Ge1 O2 24.7(14) 3_665 . ?
O1 Ge1 O2 118.2(4) 3_665 2_655 ?
O1 Ge1 O2 118.2(4) . 2_655 ?
O1 Ge1 O2 97.4(8) 2_655 2_655 ?
O2 Ge1 O2 24.7(14) 3_665 2_655 ?
O2 Ge1 O2 24.7(14) . 2_655 ?
O2 Ge2 O2 24.8(13) 3_665 2_655 ?
O2 Ge2 O2 24.8(13) 3_665 . ?
O2 Ge2 O2 24.8(13) 2_655 . ?
O2 Ge2 Te1 95.0(8) 3_665 2_655 ?
O2 Ge2 Te1 115.9(3) 2_655 2_655 ?
O2 Ge2 Te1 116.0(3) . 2_655 ?
O2 Ge2 Te1 115.9(3) 3_665 3_665 ?
O2 Ge2 Te1 116.0(3) 2_655 3_665 ?
O2 Ge2 Te1 95.0(8) . 3_665 ?
Te1 Ge2 Te1 109.62(6) 2_655 3_665 ?
O2 Ge2 Te1 115.9(3) 3_665 . ?
O2 Ge2 Te1 95.0(8) 2_655 . ?
O2 Ge2 Te1 115.9(3) . . ?
Te1 Ge2 Te1 109.62(6) 2_655 . ?
Te1 Ge2 Te1 109.62(6) 3_665 . ?
Ge1 O1 Sr1 117.4(4) . . ?
Ge1 O1 Sr1 94.0(2) . 9_565 ?
Sr1 O1 Sr1 114.3(2) . 9_565 ?
Ge1 O1 Sr1 94.0(2) . 8_655 ?
Sr1 O1 Sr1 114.3(2) . 8_655 ?
Sr1 O1 Sr1 119.5(3) 9_565 8_655 ?
O2 O2 O2 60.000(19) 3_665 2_655 ?
O2 O2 Ge2 77.6(7) 3_665 . ?
O2 O2 Ge2 77.6(7) 2_655 . ?
O2 O2 Ge1 77.7(7) 3_665 . ?
O2 O2 Ge1 77.7(7) 2_655 . ?
Ge2 O2 Ge1 151.4(15) . . ?
O2 O2 Sr1 147.16(18) 3_665 . ?
O2 O2 Sr1 147.16(19) 2_655 . ?
Ge2 O2 Sr1 118.4(11) . . ?
Ge1 O2 Sr1 90.3(10) . . ?
O1 Sr1 O1 147.2(2) . 14_654 ?
O1 Sr1 O1 147.2(2) . 15_664 ?
O1 Sr1 O1 64.8(4) 14_654 15_664 ?
O1 Sr1 O2 54.9(5) . . ?
O1 Sr1 O2 123.3(4) 14_654 . ?
O1 Sr1 O2 123.3(4) 15_664 . ?
O1 Sr1 Te1 113.0(2) . 3_665 ?
O1 Sr1 Te1 75.32(17) 14_654 3_665 ?
O1 Sr1 Te1 75.32(17) 15_664 3_665 ?
O2 Sr1 Te1 58.0(5) . 3_665 ?
O1 Sr1 Te1 80.90(16) . 13 ?
O1 Sr1 Te1 75.61(17) 14_654 13 ?
O1 Sr1 Te1 112.75(18) 15_664 13 ?
O2 Sr1 Te1 123.7(3) . 13 ?
Te1 Sr1 Te1 142.07(3) 3_665 13 ?
O1 Sr1 Te1 80.90(17) . 14_655 ?
O1 Sr1 Te1 112.75(18) 14_654 14_655 ?
O1 Sr1 Te1 75.61(17) 15_664 14_655 ?
O2 Sr1 Te1 123.7(3) . 14_655 ?
Te1 Sr1 Te1 142.07(3) 3_665 14_655 ?
Te1 Sr1 Te1 72.72(4) 13 14_655 ?
O1 Sr1 Te1 74.63(9) . 7 ?
O1 Sr1 Te1 136.62(19) 14_654 7 ?
O1 Sr1 Te1 77.4(2) 15_664 7 ?
O2 Sr1 Te1 61.89(2) . 7 ?
Te1 Sr1 Te1 75.21(2) 3_665 7 ?
Te1 Sr1 Te1 142.05(5) 13 7 ?
Te1 Sr1 Te1 75.099(13) 14_655 7 ?
O1 Sr1 Te1 74.63(9) . 8 ?
O1 Sr1 Te1 77.4(2) 14_654 8 ?
O1 Sr1 Te1 136.62(19) 15_664 8 ?
O2 Sr1 Te1 61.89(2) . 8 ?
Te1 Sr1 Te1 75.21(2) 3_665 8 ?
Te1 Sr1 Te1 75.099(13) 13 8 ?
Te1 Sr1 Te1 142.06(5) 14_655 8 ?
Te1 Sr1 Te1 123.77(5) 7 8 ?
O1 Sr1 Sr1 126.58(10) . 14_654 ?
O1 Sr1 Sr1 31.94(18) 14_654 14_654 ?
O1 Sr1 Sr1 84.76(19) 15_664 14_654 ?
O2 Sr1 Sr1 91.7(3) . 14_654 ?
Te1 Sr1 Sr1 54.290(14) 3_665 14_654 ?
Te1 Sr1 Sr1 88.65(3) 13 14_654 ?
Te1 Sr1 Sr1 144.53(5) 14_655 14_654 ?
Te1 Sr1 Sr1 129.25(3) 7 14_654 ?
Te1 Sr1 Sr1 52.13(3) 8 14_654 ?
O1 Sr1 Sr1 33.80(7) . 8_655 ?
O1 Sr1 Sr1 165.12(17) 14_654 8_655 ?
O1 Sr1 Sr1 113.68(19) 15_664 8_655 ?
O2 Sr1 Sr1 70.6(4) . 8_655 ?
Te1 Sr1 Sr1 119.20(3) 3_665 8_655 ?
Te1 Sr1 Sr1 92.33(3) 13 8_655 ?
Te1 Sr1 Sr1 54.247(17) 14_655 8_655 ?
Te1 Sr1 Sr1 51.98(3) 7 8_655 ?
Te1 Sr1 Sr1 108.29(5) 8 8_655 ?
Sr1 Sr1 Sr1 159.31(6) 14_654 8_655 ?
O1 Sr1 Sr1 33.80(7) . 9_565 ?
O1 Sr1 Sr1 113.68(19) 14_654 9_565 ?
O1 Sr1 Sr1 165.12(17) 15_664 9_565 ?
O2 Sr1 Sr1 70.6(4) . 9_565 ?
Te1 Sr1 Sr1 119.20(3) 3_665 9_565 ?
Te1 Sr1 Sr1 54.248(17) 13 9_565 ?
Te1 Sr1 Sr1 92.33(3) 14_655 9_565 ?
Te1 Sr1 Sr1 108.29(5) 7 9_565 ?
Te1 Sr1 Sr1 51.98(3) 8 9_565 ?
Sr1 Sr1 Sr1 100.983(15) 14_654 9_565 ?
Sr1 Sr1 Sr1 63.62(4) 8_655 9_565 ?
Ge2 Te1 Sr1 88.62(6) . 2_655 ?
Ge2 Te1 Sr1 86.26(5) . 7_444 ?
Sr1 Te1 Sr1 139.75(3) 2_655 7_444 ?
Ge2 Te1 Sr1 86.26(5) . 9_564 ?
Sr1 Te1 Sr1 139.75(3) 2_655 9_564 ?
Sr1 Te1 Sr1 79.68(5) 7_444 9_564 ?
Ge2 Te1 Sr1 117.77(3) . 13_444 ?
Sr1 Te1 Sr1 73.73(2) 2_655 13_444 ?
Sr1 Te1 Sr1 142.06(5) 7_444 13_444 ?
Sr1 Te1 Sr1 73.625(15) 9_564 13_444 ?
Ge2 Te1 Sr1 117.77(3) . 15_554 ?
Sr1 Te1 Sr1 73.73(2) 2_655 15_554 ?
Sr1 Te1 Sr1 73.625(15) 7_444 15_554 ?
Sr1 Te1 Sr1 142.06(5) 9_564 15_554 ?
Sr1 Te1 Sr1 113.33(5) 13_444 15_554 ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
O1 Ge1 O1 Sr1 122.6(3) 3_665 . . . ?
O1 Ge1 O1 Sr1 -122.6(3) 2_655 . . . ?
O2 Ge1 O1 Sr1 14.0(8) 3_665 . . . ?
O2 Ge1 O1 Sr1 0.000(1) . . . . ?
O2 Ge1 O1 Sr1 -14.0(8) 2_655 . . . ?
O1 Ge1 O1 Sr1 -117.38(17) 3_665 . . 9_565 ?
O1 Ge1 O1 Sr1 -2.6(5) 2_655 . . 9_565 ?
O2 Ge1 O1 Sr1 134.0(8) 3_665 . . 9_565 ?
O2 Ge1 O1 Sr1 120.01(18) . . . 9_565 ?
O2 Ge1 O1 Sr1 106.0(8) 2_655 . . 9_565 ?
O1 Ge1 O1 Sr1 2.6(5) 3_665 . . 8_655 ?
O1 Ge1 O1 Sr1 117.38(17) 2_655 . . 8_655 ?
O2 Ge1 O1 Sr1 -106.0(8) 3_665 . . 8_655 ?
O2 Ge1 O1 Sr1 -120.01(18) . . . 8_655 ?
O2 Ge1 O1 Sr1 -134.0(8) 2_655 . . 8_655 ?
O2 Ge2 O2 O2 61.59(17) 2_655 . . 3_665 ?
Te1 Ge2 O2 O2 -34.6(3) 2_655 . . 3_665 ?
Te1 Ge2 O2 O2 -149.21(9) 3_665 . . 3_665 ?
Te1 Ge2 O2 O2 96.1(4) . . . 3_665 ?
O2 Ge2 O2 O2 -61.59(17) 3_665 . . 2_655 ?
Te1 Ge2 O2 O2 -96.1(4) 2_655 . . 2_655 ?
Te1 Ge2 O2 O2 149.21(9) 3_665 . . 2_655 ?
Te1 Ge2 O2 O2 34.6(3) . . . 2_655 ?
O2 Ge2 O2 Ge1 -30.79(9) 3_665 . . . ?
O2 Ge2 O2 Ge1 30.79(9) 2_655 . . . ?
Te1 Ge2 O2 Ge1 -65.3(3) 2_655 . . . ?
Te1 Ge2 O2 Ge1 180.000(11) 3_665 . . . ?
Te1 Ge2 O2 Ge1 65.3(4) . . . . ?
O2 Ge2 O2 Sr1 149.21(9) 3_665 . . . ?
O2 Ge2 O2 Sr1 -149.21(9) 2_655 . . . ?
Te1 Ge2 O2 Sr1 114.7(3) 2_655 . . . ?
Te1 Ge2 O2 Sr1 0.000(1) 3_665 . . . ?
Te1 Ge2 O2 Sr1 -114.7(3) . . . . ?
O1 Ge1 O2 O2 35.2(3) 3_665 . . 3_665 ?
O1 Ge1 O2 O2 149.22(9) . . . 3_665 ?
O1 Ge1 O2 O2 -96.7(5) 2_655 . . 3_665 ?
O2 Ge1 O2 O2 -61.57(17) 2_655 . . 3_665 ?
O1 Ge1 O2 O2 96.7(5) 3_665 . . 2_655 ?
O1 Ge1 O2 O2 -149.22(9) . . . 2_655 ?
O1 Ge1 O2 O2 -35.2(3) 2_655 . . 2_655 ?
O2 Ge1 O2 O2 61.57(17) 3_665 . . 2_655 ?
O1 Ge1 O2 Ge2 65.9(4) 3_665 . . . ?
O1 Ge1 O2 Ge2 180.000(13) . . . . ?
O1 Ge1 O2 Ge2 -65.9(4) 2_655 . . . ?
O2 Ge1 O2 Ge2 30.78(8) 3_665 . . . ?
O2 Ge1 O2 Ge2 -30.78(10) 2_655 . . . ?
O1 Ge1 O2 Sr1 -114.1(4) 3_665 . . . ?
O1 Ge1 O2 Sr1 0.000(1) . . . . ?
O1 Ge1 O2 Sr1 114.1(4) 2_655 . . . ?
O2 Ge1 O2 Sr1 -149.22(9) 3_665 . . . ?
O2 Ge1 O2 Sr1 149.22(9) 2_655 . . . ?

_refine_diff_density_max         2.156
_refine_diff_density_min         -2.807
_refine_diff_density_rms         0.416



