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Single crystals of ErNiSi3 were synthesized from the corresponding elements by arc melting. The ternary inter­metallic compound crystallizes in the ortho­rhom­bic space group Cmmm and adopts the SmNiGe3 structure type, with all atoms in special positions of site symmetry m2m.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680503566X/wm6110sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S160053680503566X/wm6110Isup2.hkl
Contains datablock I

Key indicators

  • Single-crystal X-ray study
  • T = 295 K
  • Mean [sigma](i-Si) = 0.001 Å
  • R factor = 0.016
  • wR factor = 0.040
  • Data-to-parameter ratio = 16.4

checkCIF/PLATON results

No syntax errors found



Alert level A TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. TYPE114_ALERT_1_A _geom_bond_distance is not of type numb. PLAT721_ALERT_1_A Bond Calc 3.0707(15), Rep 3.00000 Dev... 0.07 Ang. ER -SI1 1.555 13.456
Alert level C PLAT741_ALERT_1_C Bond Calc 3.0707(15), Rep 3.00000 ...... Missing su ER -SI1 1.555 13.456
53 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 1 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 54 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion

Computing details top

Data collection: CrysAlis CCD (Oxford Diffraction, 2004); cell refinement: CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).

Erbium Nickel Trisilicon top
Crystal data top
ErNiSi3F(000) = 552
Mr = 310.24Dx = 6.391 Mg m3
Orthorhombic, CmmmMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2 2Cell parameters from 1395 reflections
a = 3.9152 (5) Åθ = 5.2–32.7°
b = 20.948 (3) ŵ = 32.50 mm1
c = 3.9313 (6) ÅT = 295 K
V = 322.42 (8) Å3Prism, metallic light grey
Z = 40.07 × 0.05 × 0.04 mm
Data collection top
Oxford Diffraction Xcalibur3 CCD
diffractometer
360 independent reflections
Radiation source: fine-focus sealed tube358 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.028
ω scansθmax = 32.7°, θmin = 5.2°
Absorption correction: analytical
CrysAlis RED (Oxford Diffraction, 2005)
h = 55
Tmin = 0.187, Tmax = 0.274k = 3030
1407 measured reflectionsl = 35
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.016 w = 1/[σ2(Fo2) + (0.0156P)2 + 8.1601P]
where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.040(Δ/σ)max = 0.001
S = 1.02Δρmax = 1.37 e Å3
360 reflectionsΔρmin = 1.37 e Å3
22 parametersExtinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
0 restraintsExtinction coefficient: 0.0108 (5)
Special details top

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

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Er0.00000.331215 (13)0.50000.00485 (12)
Ni0.00000.11061 (4)0.00000.00510 (16)
Si10.00000.05585 (9)0.50000.0071 (3)
Si20.00000.21787 (9)0.00000.0054 (3)
Si30.00000.44397 (9)0.00000.0067 (3)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Er0.00386 (15)0.00568 (16)0.00503 (16)0.0000.0000.000
Ni0.0045 (3)0.0042 (4)0.0066 (3)0.0000.0000.000
Si10.0107 (8)0.0049 (7)0.0059 (7)0.0000.0000.000
Si20.0038 (7)0.0049 (7)0.0076 (7)0.0000.0000.000
Si30.0033 (7)0.0049 (7)0.0120 (8)0.0000.0000.000
Geometric parameters (Å, º) top
Er—Si2i2.9586 (7)Ni—Eri3.0300 (4)
Er—Si2ii2.9586 (7)Ni—Eriv3.0300 (4)
Er—Si2iii2.9586 (7)Ni—Eriii3.0300 (4)
Er—Si2iv2.9586 (7)Si1—Niv2.2759 (11)
Er—Niii3.0300 (4)Si1—Si1ix2.340 (4)
Er—Nii3.0300 (4)Si1—Si3ii2.7742 (3)
Er—Niiii3.0300 (4)Si1—Si3i2.7742 (3)
Er—Niiv3.0300 (4)Si1—Si3iii2.7742 (3)
Er—Si1ii3.0707 (15)Si1—Si3iv2.7742 (3)
Er—Si1iii3.0707 (15)Si1—Erii3.0707 (15)
Er—Si33.0729 (15)Si1—Eriii3.0707 (15)
Er—Si3v3.0729 (15)Si2—Si2iv2.376 (2)
Er—Si23.0823 (15)Si2—Si2i2.376 (2)
Er—Si2v3.0823 (15)Si2—Eri2.9586 (7)
Er—Ervi3.9152 (5)Si2—Erii2.9586 (7)
Er—Ervii3.9152 (5)Si2—Eriv2.9586 (7)
Er—Eriii3.9254 (6)Si2—Eriii2.9586 (7)
Er—Erii3.9254 (6)Si2—Erviii3.0823 (15)
Er—Erv3.9313 (6)Si3—Nii2.2671 (11)
Er—Erviii3.9313 (6)Si3—Niiv2.2671 (11)
Ni—Si22.247 (2)Si3—Si3x2.347 (4)
Ni—Si3i2.2671 (11)Si3—Si1ii2.7742 (3)
Ni—Si3iv2.2671 (11)Si3—Si1i2.7742 (3)
Ni—Si1viii2.2759 (11)Si3—Si1iii2.7742 (3)
Ni—Si12.2759 (11)Si3—Si1iv2.7742 (3)
Ni—Erii3.0300 (4)Si3—Erviii3.0729 (15)
Si2i—Er—Si2ii139.32 (7)Ervi—Er—Erv90.0
Si2i—Er—Si2iii83.27 (3)Ervii—Er—Erv90.0
Si2ii—Er—Si2iii82.85 (2)Eriii—Er—Erv90.0
Si2i—Er—Si2iv82.85 (2)Erii—Er—Erv90.0
Si2ii—Er—Si2iv83.27 (3)Si2i—Er—Erviii48.365 (13)
Si2iii—Er—Si2iv139.32 (7)Si2ii—Er—Erviii131.635 (13)
Si2i—Er—Niii176.63 (4)Si2iii—Er—Erviii131.635 (13)
Si2ii—Er—Niii44.05 (4)Si2iv—Er—Erviii48.365 (13)
Si2iii—Er—Niii97.831 (18)Niii—Er—Erviii130.446 (8)
Si2iv—Er—Niii98.239 (17)Nii—Er—Erviii49.554 (8)
Si2i—Er—Nii44.05 (4)Niiii—Er—Erviii130.446 (8)
Si2ii—Er—Nii176.63 (4)Niiv—Er—Erviii49.554 (8)
Si2iii—Er—Nii98.239 (17)Si1ii—Er—Erviii90.0
Si2iv—Er—Nii97.831 (17)Si1iii—Er—Erviii90.0
Niii—Er—Nii132.57 (3)Si3—Er—Erviii50.23 (2)
Si2i—Er—Niiii98.239 (17)Si3v—Er—Erviii129.77 (2)
Si2ii—Er—Niiii97.831 (17)Si2—Er—Erviii50.38 (2)
Si2iii—Er—Niiii44.05 (4)Si2v—Er—Erviii129.62 (2)
Si2iv—Er—Niiii176.63 (4)Ervi—Er—Erviii90.0
Niii—Er—Niiii80.493 (15)Ervii—Er—Erviii90.0
Nii—Er—Niiii80.892 (15)Eriii—Er—Erviii90.0
Si2i—Er—Niiv97.831 (18)Erii—Er—Erviii90.0
Si2ii—Er—Niiv98.239 (17)Erv—Er—Erviii180.0
Si2iii—Er—Niiv176.63 (4)Si2—Ni—Si3i120.29 (5)
Si2iv—Er—Niiv44.05 (4)Si2—Ni—Si3iv120.29 (5)
Niii—Er—Niiv80.892 (15)Si3i—Ni—Si3iv119.42 (9)
Nii—Er—Niiv80.493 (15)Si2—Ni—Si1viii120.27 (5)
Niiii—Er—Niiv132.57 (3)Si3i—Ni—Si1viii75.27 (3)
Si2i—Er—Si1ii133.60 (3)Si3iv—Ni—Si1viii75.27 (3)
Si2ii—Er—Si1ii81.14 (3)Si2—Ni—Si1120.27 (5)
Si2iii—Er—Si1ii133.60 (3)Si3i—Ni—Si175.27 (3)
Si2iv—Er—Si1ii81.14 (3)Si3iv—Ni—Si175.27 (3)
Niii—Er—Si1ii43.803 (15)Si1viii—Ni—Si1119.46 (9)
Nii—Er—Si1ii95.86 (2)Si2—Ni—Erii66.287 (16)
Niiii—Er—Si1ii95.86 (2)Si3i—Ni—Erii139.527 (7)
Niiv—Er—Si1ii43.803 (15)Si3iv—Ni—Erii69.20 (3)
Si2i—Er—Si1iii81.14 (3)Si1viii—Ni—Erii139.730 (7)
Si2ii—Er—Si1iii133.60 (3)Si1—Ni—Erii69.05 (3)
Si2iii—Er—Si1iii81.14 (3)Si2—Ni—Eri66.287 (16)
Si2iv—Er—Si1iii133.60 (3)Si3i—Ni—Eri69.20 (3)
Niii—Er—Si1iii95.86 (2)Si3iv—Ni—Eri139.527 (7)
Nii—Er—Si1iii43.803 (15)Si1viii—Ni—Eri69.05 (3)
Niiii—Er—Si1iii43.803 (15)Si1—Ni—Eri139.730 (7)
Niiv—Er—Si1iii95.86 (2)Erii—Ni—Eri132.57 (3)
Si1ii—Er—Si1iii79.21 (5)Si2—Ni—Eriv66.287 (16)
Si2i—Er—Si380.92 (4)Si3i—Ni—Eriv139.527 (7)
Si2ii—Er—Si3133.80 (3)Si3iv—Ni—Eriv69.20 (3)
Si2iii—Er—Si3133.80 (3)Si1viii—Ni—Eriv69.05 (3)
Si2iv—Er—Si380.92 (4)Si1—Ni—Eriv139.730 (7)
Niii—Er—Si396.08 (2)Erii—Ni—Eriv80.892 (15)
Nii—Er—Si343.606 (15)Eri—Ni—Eriv80.493 (15)
Niiii—Er—Si396.08 (2)Si2—Ni—Eriii66.287 (16)
Niiv—Er—Si343.606 (15)Si3i—Ni—Eriii69.20 (3)
Si1ii—Er—Si353.69 (2)Si3iv—Ni—Eriii139.527 (7)
Si1iii—Er—Si353.69 (2)Si1viii—Ni—Eriii139.730 (7)
Si2i—Er—Si3v133.80 (3)Si1—Ni—Eriii69.05 (3)
Si2ii—Er—Si3v80.92 (4)Erii—Ni—Eriii80.493 (15)
Si2iii—Er—Si3v80.92 (4)Eri—Ni—Eriii80.892 (15)
Si2iv—Er—Si3v133.80 (3)Eriv—Ni—Eriii132.57 (3)
Niii—Er—Si3v43.606 (15)Niv—Si1—Ni119.46 (9)
Nii—Er—Si3v96.08 (2)Niv—Si1—Si1ix120.27 (5)
Niiii—Er—Si3v43.606 (15)Ni—Si1—Si1ix120.27 (5)
Niiv—Er—Si3v96.08 (2)Niv—Si1—Si3ii52.22 (3)
Si1ii—Er—Si3v53.69 (2)Ni—Si1—Si3ii127.68 (5)
Si1iii—Er—Si3v53.69 (2)Si1ix—Si1—Si3ii90.08 (6)
Si3—Er—Si3v79.53 (5)Niv—Si1—Si3i127.68 (5)
Si2i—Er—Si246.26 (4)Ni—Si1—Si3i52.22 (3)
Si2ii—Er—Si298.973 (18)Si1ix—Si1—Si3i90.08 (6)
Si2iii—Er—Si298.973 (18)Si3ii—Si1—Si3i179.84 (12)
Si2iv—Er—Si246.26 (4)Niv—Si1—Si3iii52.22 (3)
Niii—Er—Si2136.343 (15)Ni—Si1—Si3iii127.68 (5)
Nii—Er—Si284.03 (2)Si1ix—Si1—Si3iii90.08 (6)
Niiii—Er—Si2136.343 (15)Si3ii—Si1—Si3iii89.765 (11)
Niiv—Er—Si284.03 (2)Si3i—Si1—Si3iii90.235 (11)
Si1ii—Er—Si2126.40 (2)Niv—Si1—Si3iv127.68 (5)
Si1iii—Er—Si2126.40 (2)Ni—Si1—Si3iv52.22 (3)
Si3—Er—Si2100.61 (3)Si1ix—Si1—Si3iv90.08 (6)
Si3v—Er—Si2179.85 (3)Si3ii—Si1—Si3iv90.235 (11)
Si2i—Er—Si2v98.973 (18)Si3i—Si1—Si3iv89.765 (11)
Si2ii—Er—Si2v46.26 (4)Si3iii—Si1—Si3iv179.84 (12)
Si2iii—Er—Si2v46.26 (4)Niv—Si1—Erii67.15 (4)
Si2iv—Er—Si2v98.973 (18)Ni—Si1—Erii67.15 (4)
Niii—Er—Si2v84.03 (2)Si1ix—Si1—Erii140.39 (2)
Nii—Er—Si2v136.343 (15)Si3ii—Si1—Erii63.20 (4)
Niiii—Er—Si2v84.03 (2)Si3i—Si1—Erii116.67 (6)
Niiv—Er—Si2v136.343 (15)Si3iii—Si1—Erii116.67 (6)
Si1ii—Er—Si2v126.40 (2)Si3iv—Si1—Erii63.20 (4)
Si1iii—Er—Si2v126.40 (2)Niv—Si1—Eriii67.15 (4)
Si3—Er—Si2v179.85 (3)Ni—Si1—Eriii67.15 (4)
Si3v—Er—Si2v100.61 (3)Si1ix—Si1—Eriii140.39 (2)
Si2—Er—Si2v79.24 (5)Si3ii—Si1—Eriii116.67 (6)
Si2i—Er—Ervi131.427 (12)Si3i—Si1—Eriii63.20 (4)
Si2ii—Er—Ervi48.573 (12)Si3iii—Si1—Eriii63.20 (4)
Si2iii—Er—Ervi131.427 (12)Si3iv—Si1—Eriii116.67 (6)
Si2iv—Er—Ervi48.573 (12)Erii—Si1—Eriii79.21 (5)
Niii—Er—Ervi49.754 (7)Ni—Si2—Si2iv124.51 (7)
Nii—Er—Ervi130.246 (7)Ni—Si2—Si2i124.51 (7)
Niiii—Er—Ervi130.246 (8)Si2iv—Si2—Si2i110.98 (15)
Niiv—Er—Ervi49.754 (7)Ni—Si2—Eri69.66 (3)
Si1ii—Er—Ervi50.39 (2)Si2iv—Si2—Eri137.91 (3)
Si1iii—Er—Ervi129.61 (2)Si2i—Si2—Eri69.62 (3)
Si3—Er—Ervi90.0Ni—Si2—Erii69.66 (3)
Si3v—Er—Ervi90.0Si2iv—Si2—Erii69.62 (3)
Si2—Er—Ervi90.0Si2i—Si2—Erii137.91 (3)
Si2v—Er—Ervi90.0Eri—Si2—Erii139.32 (7)
Si2i—Er—Ervii48.573 (12)Ni—Si2—Eriv69.66 (3)
Si2ii—Er—Ervii131.427 (12)Si2iv—Si2—Eriv69.62 (3)
Si2iii—Er—Ervii48.573 (12)Si2i—Si2—Eriv137.91 (3)
Si2iv—Er—Ervii131.427 (12)Eri—Si2—Eriv82.85 (2)
Niii—Er—Ervii130.246 (8)Erii—Si2—Eriv83.27 (3)
Nii—Er—Ervii49.754 (7)Ni—Si2—Eriii69.66 (3)
Niiii—Er—Ervii49.754 (7)Si2iv—Si2—Eriii137.91 (3)
Niiv—Er—Ervii130.246 (8)Si2i—Si2—Eriii69.62 (3)
Si1ii—Er—Ervii129.61 (2)Eri—Si2—Eriii83.27 (3)
Si1iii—Er—Ervii50.39 (2)Erii—Si2—Eriii82.85 (2)
Si3—Er—Ervii90.0Eriv—Si2—Eriii139.32 (7)
Si3v—Er—Ervii90.0Ni—Si2—Er140.38 (2)
Si2—Er—Ervii90.0Si2iv—Si2—Er64.13 (6)
Si2v—Er—Ervii90.0Si2i—Si2—Er64.13 (6)
Ervi—Er—Ervii180.0Eri—Si2—Er133.74 (4)
Si2i—Er—Eriii50.86 (3)Erii—Si2—Er81.027 (18)
Si2ii—Er—Eriii91.65 (3)Eriv—Si2—Er133.74 (4)
Si2iii—Er—Eriii50.86 (3)Eriii—Si2—Er81.027 (18)
Si2iv—Er—Eriii91.65 (3)Ni—Si2—Erviii140.38 (2)
Niii—Er—Eriii132.127 (15)Si2iv—Si2—Erviii64.13 (6)
Nii—Er—Eriii91.512 (15)Si2i—Si2—Erviii64.13 (6)
Niiii—Er—Eriii91.512 (15)Eri—Si2—Erviii81.027 (18)
Niiv—Er—Eriii132.127 (15)Erii—Si2—Erviii133.74 (4)
Si1ii—Er—Eriii170.31 (2)Eriv—Si2—Erviii81.027 (18)
Si1iii—Er—Eriii110.48 (2)Eriii—Si2—Erviii133.74 (4)
Si3—Er—Eriii131.778 (18)Er—Si2—Erviii79.24 (5)
Si3v—Er—Eriii131.778 (18)Nii—Si3—Niiv119.42 (9)
Si2—Er—Eriii48.114 (18)Nii—Si3—Si3x120.29 (5)
Si2v—Er—Eriii48.114 (18)Niiv—Si3—Si3x120.29 (5)
Ervi—Er—Eriii119.914 (6)Nii—Si3—Si1ii127.59 (5)
Ervii—Er—Eriii60.086 (6)Niiv—Si3—Si1ii52.51 (3)
Si2i—Er—Erii91.65 (3)Si3x—Si3—Si1ii89.92 (6)
Si2ii—Er—Erii50.86 (3)Nii—Si3—Si1i52.51 (3)
Si2iii—Er—Erii91.65 (3)Niiv—Si3—Si1i127.59 (5)
Si2iv—Er—Erii50.86 (3)Si3x—Si3—Si1i89.92 (6)
Niii—Er—Erii91.512 (15)Si1ii—Si3—Si1i179.84 (12)
Nii—Er—Erii132.127 (15)Nii—Si3—Si1iii52.51 (3)
Niiii—Er—Erii132.127 (15)Niiv—Si3—Si1iii127.59 (5)
Niiv—Er—Erii91.512 (15)Si3x—Si3—Si1iii89.92 (6)
Si1ii—Er—Erii110.48 (2)Si1ii—Si3—Si1iii89.765 (11)
Si1iii—Er—Erii170.31 (2)Si1i—Si3—Si1iii90.235 (11)
Si3—Er—Erii131.778 (18)Nii—Si3—Si1iv127.59 (5)
Si3v—Er—Erii131.778 (18)Niiv—Si3—Si1iv52.51 (3)
Si2—Er—Erii48.114 (17)Si3x—Si3—Si1iv89.92 (6)
Si2v—Er—Erii48.114 (17)Si1ii—Si3—Si1iv90.235 (11)
Ervi—Er—Erii60.086 (6)Si1i—Si3—Si1iv89.765 (11)
Ervii—Er—Erii119.914 (6)Si1iii—Si3—Si1iv179.84 (12)
Eriii—Er—Erii59.827 (12)Nii—Si3—Erviii67.19 (4)
Si2i—Er—Erv131.635 (13)Niiv—Si3—Erviii67.19 (4)
Si2ii—Er—Erv48.365 (13)Si3x—Si3—Erviii140.23 (2)
Si2iii—Er—Erv48.365 (13)Si1ii—Si3—Erviii117.02 (6)
Si2iv—Er—Erv131.635 (13)Si1i—Si3—Erviii63.11 (4)
Niii—Er—Erv49.554 (8)Si1iii—Si3—Erviii117.02 (6)
Nii—Er—Erv130.446 (8)Si1iv—Si3—Erviii63.11 (4)
Niiii—Er—Erv49.554 (8)Nii—Si3—Er67.19 (4)
Niiv—Er—Erv130.446 (8)Niiv—Si3—Er67.19 (4)
Si1ii—Er—Erv90.0Si3x—Si3—Er140.23 (2)
Si1iii—Er—Erv90.0Si1ii—Si3—Er63.12 (4)
Si3—Er—Erv129.77 (2)Si1i—Si3—Er117.02 (6)
Si3v—Er—Erv50.23 (2)Si1iii—Si3—Er63.11 (4)
Si2—Er—Erv129.62 (2)Si1iv—Si3—Er117.02 (6)
Si2v—Er—Erv50.38 (2)Erviii—Si3—Er79.53 (5)
Symmetry codes: (i) x1/2, y+1/2, z; (ii) x+1/2, y+1/2, z+1; (iii) x1/2, y+1/2, z+1; (iv) x+1/2, y+1/2, z; (v) x, y, z+1; (vi) x+1, y, z; (vii) x1, y, z; (viii) x, y, z1; (ix) x, y, z+1; (x) x, y+1, z.
 

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