 
data_enstatitep5.21
 
_audit_creation_method            SHELXL-97
_chemical_name_systematic
;
 ?
;
_chemical_name_common             ?
_chemical_melting_point           ?
_chemical_formula_moiety          ?
_chemical_formula_sum
 'Mg2 O6 Si2'
_chemical_formula_weight          200.80
 
loop_
 _atom_type_symbol
 _atom_type_description
 _atom_type_scat_dispersion_real
 _atom_type_scat_dispersion_imag
 _atom_type_scat_source
 'Mg'  'Mg'   0.0486   0.0363
 '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'
 'Si'  'Si'   0.0817   0.0704
 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
 
_symmetry_cell_setting            ?
_symmetry_space_group_name_H-M    ?
 
loop_
 _symmetry_equiv_pos_as_xyz
 'x, y, z'
 '-x+1/2, -y, z+1/2'
 'x+1/2, -y+1/2, -z'
 '-x, y+1/2, -z+1/2'
 '-x, -y, -z'
 'x-1/2, y, -z-1/2'
 '-x-1/2, y-1/2, z'
 'x, -y-1/2, z-1/2'
 

_diffrn_ambient_pressure          5210000(70000)
_diffrn_ambient_temperature       293(2)
_cell_length_a                    18.019(6)
_cell_length_b                    8.668(3)
_cell_length_c                    5.1073(8)
_cell_angle_alpha                 90.00
_cell_angle_beta                  90.00
_cell_angle_gamma                 90.00
_cell_volume                      797.7(4)
_cell_formula_units_Z             8
_cell_measurement_temperature     293(2)
_cell_measurement_reflns_used     ?
_cell_measurement_theta_min       ?
_cell_measurement_theta_max       ?
 
_exptl_crystal_description        ?
_exptl_crystal_colour             ?
_exptl_crystal_size_max           ?
_exptl_crystal_size_mid           ?
_exptl_crystal_size_min           ?
_exptl_crystal_density_meas       ?
_exptl_crystal_density_diffrn     3.344
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000              800
_exptl_absorpt_coefficient_mu     1.148
_exptl_absorpt_correction_type    ?
_exptl_absorpt_correction_T_min   ?
_exptl_absorpt_correction_T_max   ?
_exptl_absorpt_process_details    ?
 
_exptl_special_details
;
 ?
;
 
_diffrn_radiation_wavelength      0.71073
_diffrn_radiation_type            MoK\a
_diffrn_radiation_source          'fine-focus sealed tube'
_diffrn_radiation_monochromator   graphite
_diffrn_measurement_device_type   ?
_diffrn_measurement_method        ?
_diffrn_detector_area_resol_mean  ?
_diffrn_standards_number          ?
_diffrn_standards_interval_count  ?
_diffrn_standards_interval_time   ?
_diffrn_standards_decay_%         ?
_diffrn_reflns_number             3081
_diffrn_reflns_av_R_equivalents   0.0976
_diffrn_reflns_av_sigmaI/netI     0.0804
_diffrn_reflns_limit_h_min        -19
_diffrn_reflns_limit_h_max        19
_diffrn_reflns_limit_k_min        -9
_diffrn_reflns_limit_k_max        8
_diffrn_reflns_limit_l_min        -6
_diffrn_reflns_limit_l_max        6
_diffrn_reflns_theta_min          3.26
_diffrn_reflns_theta_max          28.15
_reflns_number_total              561
_reflns_number_gt                 366
_reflns_threshold_expression      >2sigma(I)
 
_computing_data_collection        ?
_computing_cell_refinement        ?
_computing_data_reduction         ?
_computing_structure_solution     ?
_computing_structure_refinement   'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics     ?
_computing_publication_material   ?
 
_refine_special_details
;
 Refinement of F^2^ against ALL reflections.  The weighted R-factor wR and
 goodness of fit S are based on F^2^, conventional R-factors R are based
 on F, with F set to zero for negative F^2^. The threshold expression of
 F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
 not relevant to the choice of reflections for refinement.  R-factors based
 on F^2^ are statistically about twice as large as those based on F, and R-
 factors based on ALL data will be even larger.
;
 
_refine_ls_structure_factor_coef  Fsqd
_refine_ls_matrix_type            full
_refine_ls_weighting_scheme       calc
_refine_ls_weighting_details
 'calc w=1/[\s^2^(Fo^2^)+(0.0710P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary      direct
_atom_sites_solution_secondary    difmap
_atom_sites_solution_hydrogens    geom
_refine_ls_hydrogen_treatment     mixed
_refine_ls_extinction_method      none
_refine_ls_extinction_coef        ?
_refine_ls_number_reflns          561
_refine_ls_number_parameters      61
_refine_ls_number_restraints      0
_refine_ls_R_factor_all           0.0826
_refine_ls_R_factor_gt            0.0507
_refine_ls_wR_factor_ref          0.1242
_refine_ls_wR_factor_gt           0.1142
_refine_ls_goodness_of_fit_ref    0.954
_refine_ls_restrained_S_all       0.954
_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_symmetry_multiplicity
 _atom_site_calc_flag
 _atom_site_refinement_flags
 _atom_site_disorder_assembly
 _atom_site_disorder_group
SiA Si 0.27114(10) 0.3432(2) 0.0422(3) 0.0059(5) Uani 1 1 d . . .
SiB Si 0.47286(10) 0.3375(2) 0.8028(3) 0.0056(5) Uani 1 1 d . . .
Mg1 Mg 0.37613(12) 0.6561(3) 0.8583(3) 0.0068(6) Uani 1 1 d . . .
Mg2 Mg 0.37741(13) 0.4842(3) 0.3503(3) 0.0093(6) Uani 1 1 d . . .
O1A O 0.1827(2) 0.3404(5) 0.0262(6) 0.0066(9) Uiso 1 1 d . . .
O2A O 0.3103(2) 0.5058(5) 0.0340(7) 0.0079(10) Uiso 1 1 d . . .
O3A O 0.3034(2) 0.2222(5) 0.8239(6) 0.0058(10) Uiso 1 1 d . . .
O1B O 0.5620(2) 0.3386(5) 0.8058(7) 0.0055(9) Uiso 1 1 d . . .
O2B O 0.4328(2) 0.4842(5) 0.6840(6) 0.0069(10) Uiso 1 1 d . . .
03B O 0.4467(2) 0.1915(5) 0.6129(6) 0.0039(9) Uiso 1 1 d . . .
 
loop_
 _atom_site_aniso_label
 _atom_site_aniso_U_11
 _atom_site_aniso_U_22
 _atom_site_aniso_U_33
 _atom_site_aniso_U_23
 _atom_site_aniso_U_13
 _atom_site_aniso_U_12
SiA 0.0097(16) 0.0031(17) 0.0050(6) 0.0002(7) 0.0005(7) -0.0003(7)
SiB 0.0067(16) 0.0047(18) 0.0053(7) 0.0004(7) -0.0001(7) 0.0002(6)
Mg1 0.0089(19) 0.007(2) 0.0048(8) 0.0000(9) -0.0005(9) -0.0004(8)
Mg2 0.012(2) 0.009(2) 0.0076(8) -0.0011(10) -0.0010(10) 0.0004(8)
 
_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
SiA O2A 1.576(5) . ?
SiA O1A 1.597(5) . ?
SiA O3A 1.637(4) 1_554 ?
SiA O3A 1.652(4) 8_565 ?
SiA Mg2 2.763(3) . ?
SiA Mg1 3.106(3) 2_564 ?
SiA Mg2 3.219(3) 2_564 ?
SiA Mg1 3.249(3) 7_654 ?
SiB O2B 1.583(4) . ?
SiB O1B 1.606(5) . ?
SiB 03B 1.663(4) . ?
SiB 03B 1.671(4) 8_566 ?
SiB Mg2 3.149(3) . ?
SiB Mg2 3.206(3) 5_666 ?
SiB Mg1 3.226(3) 5_667 ?
SiB Mg1 3.249(3) 4_646 ?
Mg1 O2A 1.978(5) 1_556 ?
Mg1 O1A 2.000(4) 2_565 ?
Mg1 O2B 2.014(5) . ?
Mg1 O1B 2.047(4) 5_667 ?
Mg1 O1A 2.100(5) 7_666 ?
Mg1 O1B 2.109(5) 4_656 ?
Mg1 Mg2 2.922(3) 1_556 ?
Mg1 Mg2 2.992(3) . ?
Mg1 Mg1 3.028(2) 8_576 ?
Mg1 Mg1 3.028(2) 8_575 ?
Mg1 SiA 3.106(3) 2_565 ?
Mg1 Mg2 3.118(3) 8_576 ?
Mg2 O2B 1.975(4) . ?
Mg2 O2A 2.027(4) . ?
Mg2 O1B 2.047(5) 5_666 ?
Mg2 O1A 2.071(5) 2_565 ?
Mg2 O3A 2.235(5) 8_565 ?
Mg2 03B 2.312(4) 8_565 ?
Mg2 Mg1 2.922(3) 1_554 ?
Mg2 Mg1 3.118(3) 8_575 ?
Mg2 SiB 3.206(3) 5_666 ?
O1A Mg1 2.000(4) 2_564 ?
O1A Mg2 2.071(5) 2_564 ?
O1A Mg1 2.100(5) 7_654 ?
O2A Mg1 1.978(5) 1_554 ?
O3A SiA 1.637(4) 1_556 ?
O3A SiA 1.652(4) 8_566 ?
O3A Mg2 2.235(5) 8_566 ?
O1B Mg2 2.047(5) 5_666 ?
O1B Mg1 2.047(4) 5_667 ?
O1B Mg1 2.109(5) 4_646 ?
03B SiB 1.671(4) 8_565 ?
03B Mg2 2.312(4) 8_566 ?
 
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
O2A SiA O1A 117.3(2) . . ?
O2A SiA O3A 113.3(2) . 1_554 ?
O1A SiA O3A 108.1(2) . 1_554 ?
O2A SiA O3A 99.9(2) . 8_565 ?
O1A SiA O3A 113.0(2) . 8_565 ?
O3A SiA O3A 104.36(18) 1_554 8_565 ?
O2A SiA Mg2 46.36(15) . . ?
O1A SiA Mg2 136.69(15) . . ?
O3A SiA Mg2 115.14(18) 1_554 . ?
O3A SiA Mg2 53.98(17) 8_565 . ?
O2A SiA Mg1 113.22(19) . 2_564 ?
O1A SiA Mg1 34.26(12) . 2_564 ?
O3A SiA Mg1 131.19(18) 1_554 2_564 ?
O3A SiA Mg1 81.30(16) 8_565 2_564 ?
Mg2 SiA Mg1 107.17(7) . 2_564 ?
O2A SiA Mg2 87.04(19) . 2_564 ?
O1A SiA Mg2 32.99(15) . 2_564 ?
O3A SiA Mg2 112.69(16) 1_554 2_564 ?
O3A SiA Mg2 135.83(17) 8_565 2_564 ?
Mg2 SiA Mg2 122.95(8) . 2_564 ?
Mg1 SiA Mg2 56.43(6) 2_564 2_564 ?
O2A SiA Mg1 143.51(19) . 7_654 ?
O1A SiA Mg1 33.07(15) . 7_654 ?
O3A SiA Mg1 76.92(17) 1_554 7_654 ?
O3A SiA Mg1 111.59(18) 8_565 7_654 ?
Mg2 SiA Mg1 162.06(7) . 7_654 ?
Mg1 SiA Mg1 56.86(6) 2_564 7_654 ?
Mg2 SiA Mg1 57.64(7) 2_564 7_654 ?
O2B SiB O1B 117.1(2) . . ?
O2B SiB 03B 105.0(2) . . ?
O1B SiB 03B 107.1(2) . . ?
O2B SiB 03B 110.8(2) . 8_566 ?
O1B SiB 03B 105.9(2) . 8_566 ?
03B SiB 03B 111.00(18) . 8_566 ?
O2B SiB Mg2 31.28(15) . . ?
O1B SiB Mg2 123.43(15) . . ?
03B SiB Mg2 74.02(15) . . ?
03B SiB Mg2 127.03(18) 8_566 . ?
O2B SiB Mg2 84.43(18) . 5_666 ?
O1B SiB Mg2 32.66(15) . 5_666 ?
03B SiB Mg2 117.60(16) . 5_666 ?
03B SiB Mg2 122.73(17) 8_566 5_666 ?
Mg2 SiB Mg2 94.94(7) . 5_666 ?
O2B SiB Mg1 125.21(18) . 5_667 ?
O1B SiB Mg1 31.91(13) . 5_667 ?
03B SiB Mg1 124.40(18) . 5_667 ?
03B SiB Mg1 74.44(16) 8_566 5_667 ?
Mg2 SiB Mg1 147.97(8) . 5_667 ?
Mg2 SiB Mg1 54.03(6) 5_666 5_667 ?
O2B SiB Mg1 132.34(16) . 4_646 ?
O1B SiB Mg1 33.65(15) . 4_646 ?
03B SiB Mg1 73.81(17) . 4_646 ?
03B SiB Mg1 113.78(17) 8_566 4_646 ?
Mg2 SiB Mg1 117.85(7) . 4_646 ?
Mg2 SiB Mg1 57.77(7) 5_666 4_646 ?
Mg1 SiB Mg1 55.77(6) 5_667 4_646 ?
O2A Mg1 O1A 94.4(2) 1_556 2_565 ?
O2A Mg1 O2B 91.0(2) 1_556 . ?
O1A Mg1 O2B 84.54(17) 2_565 . ?
O2A Mg1 O1B 87.79(18) 1_556 5_667 ?
O1A Mg1 O1B 177.6(2) 2_565 5_667 ?
O2B Mg1 O1B 96.35(19) . 5_667 ?
O2A Mg1 O1A 90.8(2) 1_556 7_666 ?
O1A Mg1 O1A 93.89(19) 2_565 7_666 ?
O2B Mg1 O1A 177.74(18) . 7_666 ?
O1B Mg1 O1A 85.15(17) 5_667 7_666 ?
O2A Mg1 O1B 172.6(2) 1_556 4_656 ?
O1A Mg1 O1B 86.10(17) 2_565 4_656 ?
O2B Mg1 O1B 96.4(2) . 4_656 ?
O1B Mg1 O1B 91.61(19) 5_667 4_656 ?
O1A Mg1 O1B 81.88(18) 7_666 4_656 ?
O2A Mg1 Mg2 43.81(13) 1_556 1_556 ?
O1A Mg1 Mg2 137.83(16) 2_565 1_556 ?
O2B Mg1 Mg2 89.92(13) . 1_556 ?
O1B Mg1 Mg2 44.46(13) 5_667 1_556 ?
O1A Mg1 Mg2 92.34(12) 7_666 1_556 ?
O1B Mg1 Mg2 136.07(14) 4_656 1_556 ?
O2A Mg1 Mg2 94.00(14) 1_556 . ?
O1A Mg1 Mg2 43.63(14) 2_565 . ?
O2B Mg1 Mg2 40.92(12) . . ?
O1B Mg1 Mg2 137.20(16) 5_667 . ?
O1A Mg1 Mg2 137.47(13) 7_666 . ?
O1B Mg1 Mg2 91.42(12) 4_656 . ?
Mg2 Mg1 Mg2 119.44(11) 1_556 . ?
O2A Mg1 Mg1 88.37(12) 1_556 8_576 ?
O1A Mg1 Mg1 135.01(16) 2_565 8_576 ?
O2B Mg1 Mg1 140.38(13) . 8_576 ?
O1B Mg1 Mg1 44.03(13) 5_667 8_576 ?
O1A Mg1 Mg1 41.13(12) 7_666 8_576 ?
O1B Mg1 Mg1 86.11(14) 4_656 8_576 ?
Mg2 Mg1 Mg1 63.18(6) 1_556 8_576 ?
Mg2 Mg1 Mg1 177.34(11) . 8_576 ?
O2A Mg1 Mg1 137.45(13) 1_556 8_575 ?
O1A Mg1 Mg1 43.68(13) 2_565 8_575 ?
O2B Mg1 Mg1 91.43(11) . 8_575 ?
O1B Mg1 Mg1 134.01(16) 5_667 8_575 ?
O1A Mg1 Mg1 86.31(14) 7_666 8_575 ?
O1B Mg1 Mg1 42.43(12) 4_656 8_575 ?
Mg2 Mg1 Mg1 178.11(11) 1_556 8_575 ?
Mg2 Mg1 Mg1 62.38(6) . 8_575 ?
Mg1 Mg1 Mg1 114.99(14) 8_576 8_575 ?
O2A Mg1 SiA 74.00(14) 1_556 2_565 ?
O1A Mg1 SiA 26.71(13) 2_565 2_565 ?
O2B Mg1 SiA 101.82(14) . 2_565 ?
O1B Mg1 SiA 154.31(15) 5_667 2_565 ?
O1A Mg1 SiA 77.29(13) 7_666 2_565 ?
O1B Mg1 SiA 104.12(14) 4_656 2_565 ?
Mg2 Mg1 SiA 117.04(8) 1_556 2_565 ?
Mg2 Mg1 SiA 63.69(6) . 2_565 ?
Mg1 Mg1 SiA 115.94(6) 8_576 2_565 ?
Mg1 Mg1 SiA 63.94(4) 8_575 2_565 ?
O2A Mg1 Mg2 132.01(16) 1_556 8_576 ?
O1A Mg1 Mg2 88.73(15) 2_565 8_576 ?
O2B Mg1 Mg2 136.91(15) . 8_576 ?
O1B Mg1 Mg2 89.12(14) 5_667 8_576 ?
O1A Mg1 Mg2 41.27(13) 7_666 8_576 ?
O1B Mg1 Mg2 40.63(13) 4_656 8_576 ?
Mg2 Mg1 Mg2 121.42(9) 1_556 8_576 ?
Mg2 Mg1 Mg2 119.12(8) . 8_576 ?
Mg1 Mg1 Mg2 58.25(8) 8_576 8_576 ?
Mg1 Mg1 Mg2 56.75(8) 8_575 8_576 ?
SiA Mg1 Mg2 89.87(8) 2_565 8_576 ?
O2B Mg2 O2A 171.7(2) . . ?
O2B Mg2 O1B 93.80(19) . 5_666 ?
O2A Mg2 O1B 86.49(18) . 5_666 ?
O2B Mg2 O1A 83.68(17) . 2_565 ?
O2A Mg2 O1A 88.06(19) . 2_565 ?
O1B Mg2 O1A 84.08(19) 5_666 2_565 ?
O2B Mg2 O3A 110.71(17) . 8_565 ?
O2A Mg2 O3A 70.72(17) . 8_565 ?
O1B Mg2 O3A 153.59(16) 5_666 8_565 ?
O1A Mg2 O3A 107.6(2) 2_565 8_565 ?
O2B Mg2 03B 100.33(18) . 8_565 ?
O2A Mg2 03B 88.01(17) . 8_565 ?
O1B Mg2 03B 90.10(18) 5_666 8_565 ?
O1A Mg2 03B 173.16(17) 2_565 8_565 ?
O3A Mg2 03B 76.32(16) 8_565 8_565 ?
O2B Mg2 SiA 147.31(16) . . ?
O2A Mg2 SiA 34.24(13) . . ?
O1B Mg2 SiA 118.68(13) 5_666 . ?
O1A Mg2 SiA 102.10(16) 2_565 . ?
O3A Mg2 SiA 36.72(10) 8_565 . ?
03B Mg2 SiA 77.55(13) 8_565 . ?
O2B Mg2 Mg1 138.25(16) . 1_554 ?
O2A Mg2 Mg1 42.50(13) . 1_554 ?
O1B Mg2 Mg1 44.46(12) 5_666 1_554 ?
O1A Mg2 Mg1 89.68(13) 2_565 1_554 ?
O3A Mg2 Mg1 110.59(12) 8_565 1_554 ?
03B Mg2 Mg1 83.64(11) 8_565 1_554 ?
SiA Mg2 Mg1 74.36(7) . 1_554 ?
O2B Mg2 Mg1 41.91(13) . . ?
O2A Mg2 Mg1 129.83(16) . . ?
O1B Mg2 Mg1 88.16(13) 5_666 . ?
O1A Mg2 Mg1 41.77(11) 2_565 . ?
O3A Mg2 Mg1 116.52(12) 8_565 . ?
03B Mg2 Mg1 141.88(13) 8_565 . ?
SiA Mg2 Mg1 135.13(9) . . ?
Mg1 Mg2 Mg1 119.44(11) 1_554 . ?
O2B Mg2 Mg1 89.57(14) . 8_575 ?
O2A Mg2 Mg1 85.05(15) . 8_575 ?
O1B Mg2 Mg1 42.14(13) 5_666 8_575 ?
O1A Mg2 Mg1 41.97(13) 2_565 8_575 ?
O3A Mg2 Mg1 142.82(15) 8_565 8_575 ?
03B Mg2 Mg1 132.00(13) 8_565 8_575 ?
SiA Mg2 Mg1 116.39(9) . 8_575 ?
Mg1 Mg2 Mg1 60.07(6) 1_554 8_575 ?
Mg1 Mg2 Mg1 59.37(6) . 8_575 ?
O2B Mg2 SiB 24.58(13) . . ?
O2A Mg2 SiB 161.48(17) . . ?
O1B Mg2 SiB 107.30(15) 5_666 . ?
O1A Mg2 SiB 105.27(12) 2_565 . ?
O3A Mg2 SiB 92.69(12) 8_565 . ?
03B Mg2 SiB 79.86(11) 8_565 . ?
SiA Mg2 SiB 128.16(10) . . ?
Mg1 Mg2 SiB 147.30(9) 1_554 . ?
Mg1 Mg2 SiB 64.46(6) . . ?
Mg1 Mg2 SiB 113.46(8) 8_575 . ?
O2B Mg2 SiB 77.58(14) . 5_666 ?
O2A Mg2 SiB 105.28(14) . 5_666 ?
O1B Mg2 SiB 25.05(13) 5_666 5_666 ?
O1A Mg2 SiB 101.05(15) 2_565 5_666 ?
O3A Mg2 SiB 150.81(14) 8_565 5_666 ?
03B Mg2 SiB 74.64(12) 8_565 5_666 ?
SiA Mg2 SiB 131.10(7) . 5_666 ?
Mg1 Mg2 SiB 63.32(6) 1_554 5_666 ?
Mg1 Mg2 SiB 88.73(7) . 5_666 ?
Mg1 Mg2 SiB 61.80(7) 8_575 5_666 ?
SiB Mg2 SiB 85.06(7) . 5_666 ?
SiA O1A Mg1 119.0(2) . 2_564 ?
SiA O1A Mg2 122.2(2) . 2_564 ?
Mg1 O1A Mg2 94.6(2) 2_564 2_564 ?
SiA O1A Mg1 122.4(2) . 7_654 ?
Mg1 O1A Mg1 95.2(2) 2_564 7_654 ?
Mg2 O1A Mg1 96.76(19) 2_564 7_654 ?
SiA O2A Mg1 150.4(3) . 1_554 ?
SiA O2A Mg2 99.4(2) . . ?
Mg1 O2A Mg2 93.7(2) 1_554 . ?
SiA O3A SiA 133.4(3) 1_556 8_566 ?
SiA O3A Mg2 133.1(2) 1_556 8_566 ?
SiA O3A Mg2 89.3(2) 8_566 8_566 ?
SiB O1B Mg2 122.3(2) . 5_666 ?
SiB O1B Mg1 123.6(2) . 5_667 ?
Mg2 O1B Mg1 91.1(2) 5_666 5_667 ?
SiB O1B Mg1 121.4(2) . 4_646 ?
Mg2 O1B Mg1 97.2(2) 5_666 4_646 ?
Mg1 O1B Mg1 93.5(2) 5_667 4_646 ?
SiB O2B Mg2 124.1(2) . . ?
SiB O2B Mg1 131.0(2) . . ?
Mg2 O2B Mg1 97.2(2) . . ?
SiB 03B SiB 126.0(3) . 8_565 ?
SiB 03B Mg2 110.40(18) . 8_566 ?
SiB 03B Mg2 123.4(2) 8_565 8_566 ?
 
_diffrn_measured_fraction_theta_max    0.573
_diffrn_reflns_theta_full              28.15
_diffrn_measured_fraction_theta_full   0.573
_refine_diff_density_max    0.640
_refine_diff_density_min   -0.495
_refine_diff_density_rms    0.148
