A new ternary aluminide, CePt₃Al₅

The inter­metallic title compound, cerium triplatinum penta­aluminium, crystallizes in a site-exchange variant of the YNi₅Si₃-type structure.

Key indicators

• Single-crystal X-ray study
• T = 291 K
• Mean [sigma](t-Ce) = 0.001 Å
• R factor = 0.034
• wR factor = 0.084
• Data-to-parameter ratio = 22.5

checkCIF/PLATON results

No syntax errors found



Alert level C
DIFMN02_ALERT_2_C  The minimum difference density is < -0.1*ZMAX*0.75
            _refine_diff_density_min given =     -5.874
            Test value =     -5.850
DIFMN03_ALERT_1_C  The minimum difference density is < -0.1*ZMAX*0.75
            The relevant atom site should be identified.
PLAT061_ALERT_3_C Tmax/Tmin Range Test RR' too Large .............       0.83

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 ALERT type 2 Indicator that the structure model may be wrong or deficient
   1 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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Computing details

Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell refinement: CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Brandenburg, 1998) and ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

cerium triplatinum pentaaluminium

Crystal data

CePt3Al5	F(000) = 1428
Mr = 860.29	Dx = 9.180 Mg m^−3
Orthorhombic, Pnma	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ac 2n	Cell parameters from 25 reflections
a = 20.651 (4) Å	θ = 15.5–20.6°
b = 4.1381 (8) Å	µ = 74.96 mm^−1
c = 7.2842 (15) Å	T = 291 K
V = 622.5 (2) Å^3	Prism, metallic light grey
Z = 4	0.04 × 0.04 × 0.04 mm

Data collection

Enraf–Nonius CAD-4 diffractometer	1041 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.058
Graphite monochromator	θmax = 32.5°, θmin = 2.0°
ω scans	h = 0→31
Absorption correction: ψ scan (North et al., 1968)	k = −6→4
Tmin = 0.065, Tmax = 0.073	l = 0→11
2062 measured reflections	1 standard reflections every 120 min
1259 independent reflections	intensity decay: none

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.034	w = 1/[σ^2(Fo^2) + (0.0516P)^2 + 2.6515P] where P = (Fo^2 + 2Fc^2)/3
wR(F^2) = 0.084	(Δ/σ)max < 0.001
S = 0.99	Δρmax = 3.95 e Å^−3
1259 reflections	Δρmin = −5.87 e Å^−3
56 parameters	Extinction correction: SHELXL97 (Sheldrick, 1997), Fc^*=kFc[1+0.001xFc^2λ^3/sin(2θ)]^-1/4
0 restraints	Extinction coefficient: 0.00169 (14)

Special details

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 (Ų)

	x	y	z	Uiso*/Ueq
Ce	0.35960 (3)	0.2500	0.88193 (10)	0.00572 (16)
Pt1	0.07245 (2)	0.2500	0.66471 (6)	0.00590 (13)
Pt2	0.08413 (2)	0.2500	0.07650 (7)	0.00538 (13)
Pt3	0.26283 (2)	0.2500	0.38292 (6)	0.00499 (13)
Al1	0.0077 (2)	0.2500	0.3696 (6)	0.0073 (7)
Al2	0.20088 (19)	0.2500	0.6885 (6)	0.0071 (7)
Al3	0.20836 (19)	0.2500	0.0745 (6)	0.0075 (7)
Al4	0.3825 (2)	0.2500	0.3564 (6)	0.0072 (7)
Al5	0.48311 (19)	0.2500	0.6125 (5)	0.0055 (7)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Ce	0.0048 (3)	0.0063 (3)	0.0060 (3)	0.000	0.0007 (2)	0.000
Pt1	0.0045 (2)	0.0074 (2)	0.0058 (2)	0.000	0.00054 (14)	0.000
Pt2	0.0032 (2)	0.0067 (2)	0.0062 (2)	0.000	−0.00035 (14)	0.000
Pt3	0.0044 (2)	0.0055 (2)	0.0051 (2)	0.000	0.00025 (13)	0.000
Al1	0.0056 (17)	0.009 (2)	0.0070 (17)	0.000	−0.0005 (13)	0.000
Al2	0.0077 (18)	0.0066 (19)	0.0070 (17)	0.000	−0.0021 (13)	0.000
Al3	0.0059 (16)	0.010 (2)	0.0068 (16)	0.000	0.0003 (13)	0.000
Al4	0.0030 (16)	0.0077 (19)	0.0110 (18)	0.000	−0.0018 (13)	0.000
Al5	0.0060 (17)	0.0042 (19)	0.0062 (16)	0.000	−0.0008 (12)	0.000

Geometric parameters (Å, º)

Ce—Al5	3.218 (4)	Pt3—Al2^xi	2.617 (3)
Ce—Pt1^i	3.2393 (7)	Pt3—Ce^x	3.2670 (8)
Ce—Pt1^ii	3.2393 (7)	Pt3—Ce^xi	3.2670 (8)
Ce—Pt2^ii	3.2529 (8)	Al1—Pt1^viii	2.661 (3)
Ce—Pt2^i	3.2529 (8)	Al1—Pt1^ix	2.661 (3)
Ce—Pt3^ii	3.2670 (8)	Al1—Al5^x	2.797 (4)
Ce—Pt3^i	3.2670 (8)	Al1—Al5^xi	2.797 (4)
Ce—Al2^i	3.290 (3)	Al1—Al1^ix	2.827 (6)
Ce—Al2^ii	3.290 (3)	Al1—Al1^viii	2.827 (6)
Ce—Al3^ii	3.356 (3)	Al1—Ce^xi	3.435 (3)
Ce—Al3^i	3.356 (3)	Al1—Ce^x	3.435 (3)
Ce—Al3^iii	3.424 (4)	Al1—Ce^vii	3.553 (4)
Ce—Al1^i	3.435 (3)	Al2—Pt3^i	2.617 (3)
Ce—Al1^ii	3.435 (3)	Al2—Pt3^ii	2.617 (3)
Ce—Al4^iii	3.488 (4)	Al2—Al3^iii	2.816 (6)
Ce—Al1^iv	3.553 (4)	Al2—Al3^i	2.912 (4)
Ce—Al2	3.568 (4)	Al2—Al3^ii	2.912 (4)
Ce—Ce^v	4.1381 (8)	Al2—Al4^ii	2.956 (4)
Ce—Ce^vi	4.1381 (8)	Al2—Al4^i	2.956 (4)
Pt1—Al5^vii	2.457 (4)	Al2—Ce^x	3.290 (3)
Pt1—Al1	2.532 (4)	Al2—Ce^xi	3.290 (3)
Pt1—Al2	2.658 (4)	Al3—Pt3^x	2.566 (2)
Pt1—Al1^viii	2.661 (3)	Al3—Pt3^xi	2.566 (2)
Pt1—Al1^ix	2.661 (3)	Al3—Al2^xiii	2.816 (6)
Pt1—Al4^i	2.664 (3)	Al3—Al2^xi	2.912 (4)
Pt1—Al4^ii	2.664 (3)	Al3—Al2^x	2.912 (4)
Pt1—Pt2^iii	3.0092 (9)	Al3—Ce^xi	3.356 (3)
Pt1—Ce^x	3.2393 (7)	Al3—Ce^x	3.356 (3)
Pt1—Ce^xi	3.2393 (7)	Al3—Ce^xiii	3.424 (4)
Pt2—Al5^xii	2.500 (4)	Al4—Pt1^x	2.664 (3)
Pt2—Al5^x	2.506 (2)	Al4—Pt1^xi	2.664 (3)
Pt2—Al5^xi	2.506 (2)	Al4—Pt2^i	2.707 (3)
Pt2—Al3	2.566 (4)	Al4—Pt2^ii	2.707 (3)
Pt2—Al1	2.655 (4)	Al4—Al5	2.793 (6)
Pt2—Al4^x	2.707 (3)	Al4—Al2^x	2.956 (4)
Pt2—Al4^xi	2.707 (3)	Al4—Al2^xi	2.956 (4)
Pt2—Pt1^xiii	3.0092 (9)	Al4—Ce^xiii	3.488 (4)
Pt2—Ce^xi	3.2529 (8)	Al5—Pt1^iv	2.457 (4)
Pt2—Ce^x	3.2529 (8)	Al5—Pt2^xiv	2.500 (4)
Pt3—Al4	2.478 (4)	Al5—Pt2^ii	2.506 (2)
Pt3—Al3	2.512 (4)	Al5—Pt2^i	2.506 (2)
Pt3—Al3^i	2.566 (2)	Al5—Al5^xv	2.730 (5)
Pt3—Al3^ii	2.566 (2)	Al5—Al5^xvi	2.730 (5)
Pt3—Al2	2.567 (4)	Al5—Al1^i	2.797 (4)
Pt3—Al2^x	2.617 (3)	Al5—Al1^ii	2.797 (4)
Al5—Ce—Pt1^i	92.55 (6)	Al3—Pt3—Al2^x	69.16 (10)
Al5—Ce—Pt1^ii	92.55 (6)	Al3^i—Pt3—Al2^x	149.95 (13)
Pt1^i—Ce—Pt1^ii	79.40 (2)	Al3^ii—Pt3—Al2^x	65.82 (11)
Al5—Ce—Pt2^ii	45.56 (3)	Al2—Pt3—Al2^x	127.73 (7)
Pt1^i—Ce—Pt2^ii	133.35 (3)	Al4—Pt3—Al2^xi	70.87 (10)
Pt1^ii—Ce—Pt2^ii	82.755 (19)	Al3—Pt3—Al2^xi	69.16 (10)
Al5—Ce—Pt2^i	45.56 (3)	Al3^i—Pt3—Al2^xi	65.82 (11)
Pt1^i—Ce—Pt2^i	82.755 (19)	Al3^ii—Pt3—Al2^xi	149.95 (13)
Pt1^ii—Ce—Pt2^i	133.35 (3)	Al2—Pt3—Al2^xi	127.73 (7)
Pt2^ii—Ce—Pt2^i	79.00 (2)	Al2^x—Pt3—Al2^xi	104.48 (14)
Al5—Ce—Pt3^ii	127.93 (4)	Al4—Pt3—Ce^x	140.476 (15)
Pt1^i—Ce—Pt3^ii	137.59 (3)	Al3—Pt3—Ce^x	69.61 (7)
Pt1^ii—Ce—Pt3^ii	85.946 (17)	Al3^i—Pt3—Ce^x	133.74 (9)
Pt2^ii—Ce—Pt3^ii	82.828 (17)	Al3^ii—Pt3—Ce^x	70.73 (8)
Pt2^i—Ce—Pt3^ii	132.91 (3)	Al2—Pt3—Ce^x	67.44 (7)
Al5—Ce—Pt3^i	127.93 (4)	Al2^x—Pt3—Ce^x	73.72 (8)
Pt1^i—Ce—Pt3^i	85.946 (17)	Al2^xi—Pt3—Ce^x	136.15 (9)
Pt1^ii—Ce—Pt3^i	137.59 (3)	Al4—Pt3—Ce^xi	140.476 (15)
Pt2^ii—Ce—Pt3^i	132.91 (3)	Al3—Pt3—Ce^xi	69.61 (7)
Pt2^i—Ce—Pt3^i	82.828 (17)	Al3^i—Pt3—Ce^xi	70.73 (8)
Pt3^ii—Ce—Pt3^i	78.59 (2)	Al3^ii—Pt3—Ce^xi	133.74 (9)
Al5—Ce—Al2^i	135.62 (6)	Al2—Pt3—Ce^xi	67.44 (7)
Pt1^i—Ce—Al2^i	48.03 (7)	Al2^x—Pt3—Ce^xi	136.15 (9)
Pt1^ii—Ce—Al2^i	97.73 (6)	Al2^xi—Pt3—Ce^xi	73.72 (8)
Pt2^ii—Ce—Al2^i	178.62 (7)	Ce^x—Pt3—Ce^xi	78.59 (2)
Pt2^i—Ce—Al2^i	101.52 (5)	Pt1—Al1—Pt1^viii	114.09 (11)
Pt3^ii—Ce—Al2^i	95.91 (6)	Pt1—Al1—Pt1^ix	114.09 (11)
Pt3^i—Ce—Al2^i	46.09 (7)	Pt1^viii—Al1—Pt1^ix	102.07 (14)
Al5—Ce—Al2^ii	135.62 (6)	Pt1—Al1—Pt2	111.62 (15)
Pt1^i—Ce—Al2^ii	97.73 (6)	Pt1^viii—Al1—Pt2	107.11 (11)
Pt1^ii—Ce—Al2^ii	48.03 (7)	Pt1^ix—Al1—Pt2	107.11 (11)
Pt2^ii—Ce—Al2^ii	101.52 (5)	Pt1—Al1—Al5^x	122.17 (13)
Pt2^i—Ce—Al2^ii	178.62 (7)	Pt1^viii—Al1—Al5^x	53.44 (9)
Pt3^ii—Ce—Al2^ii	46.09 (7)	Pt1^ix—Al1—Al5^x	123.69 (17)
Pt3^i—Ce—Al2^ii	95.91 (6)	Pt2—Al1—Al5^x	54.64 (10)
Al2^i—Ce—Al2^ii	77.93 (9)	Pt1—Al1—Al5^xi	122.17 (13)
Al5—Ce—Al3^ii	85.68 (9)	Pt1^viii—Al1—Al5^xi	123.69 (17)
Pt1^i—Ce—Al3^ii	177.64 (6)	Pt1^ix—Al1—Al5^xi	53.44 (9)
Pt1^ii—Ce—Al3^ii	102.22 (5)	Pt2—Al1—Al5^xi	54.64 (10)
Pt2^ii—Ce—Al3^ii	45.65 (7)	Al5^x—Al1—Al5^xi	95.42 (17)
Pt2^i—Ce—Al3^ii	94.89 (6)	Pt1—Al1—Al1^ix	59.24 (14)
Pt3^ii—Ce—Al3^ii	44.56 (7)	Pt1^viii—Al1—Al1^ix	124.2 (2)
Pt3^i—Ce—Al3^ii	93.91 (6)	Pt1^ix—Al1—Al1^ix	54.85 (9)
Al2^i—Ce—Al3^ii	132.97 (10)	Pt2—Al1—Al1^ix	127.37 (16)
Al2^ii—Ce—Al3^ii	84.63 (9)	Al5^x—Al1—Al1^ix	177.4 (3)
Al5—Ce—Al3^i	85.68 (9)	Al5^xi—Al1—Al1^ix	85.19 (9)
Pt1^i—Ce—Al3^i	102.22 (5)	Pt1—Al1—Al1^viii	59.24 (14)
Pt1^ii—Ce—Al3^i	177.64 (6)	Pt1^viii—Al1—Al1^viii	54.85 (9)
Pt2^ii—Ce—Al3^i	94.89 (6)	Pt1^ix—Al1—Al1^viii	124.2 (2)
Pt2^i—Ce—Al3^i	45.65 (7)	Pt2—Al1—Al1^viii	127.37 (16)
Pt3^ii—Ce—Al3^i	93.91 (6)	Al5^x—Al1—Al1^viii	85.19 (9)
Pt3^i—Ce—Al3^i	44.56 (7)	Al5^xi—Al1—Al1^viii	177.4 (3)
Al2^i—Ce—Al3^i	84.63 (9)	Al1^ix—Al1—Al1^viii	94.1 (2)
Al2^ii—Ce—Al3^i	132.97 (10)	Pt1—Al1—Ce^xi	63.65 (8)
Al3^ii—Ce—Al3^i	76.11 (9)	Pt1^viii—Al1—Ce^xi	165.20 (12)
Al5—Ce—Al3^iii	166.61 (10)	Pt1^ix—Al1—Ce^xi	91.73 (4)
Pt1^i—Ce—Al3^iii	97.74 (6)	Pt2—Al1—Ce^xi	63.04 (8)
Pt1^ii—Ce—Al3^iii	97.74 (6)	Al5^x—Al1—Ce^xi	114.12 (16)
Pt2^ii—Ce—Al3^iii	127.31 (5)	Al5^xi—Al1—Ce^xi	61.16 (10)
Pt2^i—Ce—Al3^iii	127.31 (4)	Al1^ix—Al1—Ce^xi	68.34 (12)
Pt3^ii—Ce—Al3^iii	45.02 (3)	Al1^viii—Al1—Ce^xi	120.8 (2)
Pt3^i—Ce—Al3^iii	45.02 (3)	Pt1—Al1—Ce^x	63.65 (8)
Al2^i—Ce—Al3^iii	51.37 (7)	Pt1^viii—Al1—Ce^x	91.73 (4)
Al2^ii—Ce—Al3^iii	51.37 (7)	Pt1^ix—Al1—Ce^x	165.20 (12)
Al3^ii—Ce—Al3^iii	83.79 (4)	Pt2—Al1—Ce^x	63.04 (8)
Al3^i—Ce—Al3^iii	83.79 (4)	Al5^x—Al1—Ce^x	61.16 (10)
Al5—Ce—Al1^i	49.58 (7)	Al5^xi—Al1—Ce^x	114.12 (16)
Pt1^i—Ce—Al1^i	44.47 (7)	Al1^ix—Al1—Ce^x	120.8 (2)
Pt1^ii—Ce—Al1^i	93.19 (6)	Al1^viii—Al1—Ce^x	68.34 (12)
Pt2^ii—Ce—Al1^i	94.60 (6)	Ce^xi—Al1—Ce^x	74.06 (9)
Pt2^i—Ce—Al1^i	46.68 (7)	Pt1—Al1—Ce^vii	91.27 (12)
Pt3^ii—Ce—Al1^i	177.37 (5)	Pt1^viii—Al1—Ce^vii	60.84 (8)
Pt3^i—Ce—Al1^i	103.66 (5)	Pt1^ix—Al1—Ce^vii	60.84 (8)
Al2^i—Ce—Al1^i	86.67 (8)	Pt2—Al1—Ce^vii	157.11 (15)
Al2^ii—Ce—Al1^i	134.38 (10)	Al5^x—Al1—Ce^vii	113.55 (13)
Al3^ii—Ce—Al1^i	133.43 (10)	Al5^xi—Al1—Ce^vii	113.55 (13)
Al3^i—Ce—Al1^i	86.84 (8)	Al1^ix—Al1—Ce^vii	63.97 (15)
Al3^iii—Ce—Al1^i	137.61 (6)	Al1^viii—Al1—Ce^vii	63.97 (15)
Al5—Ce—Al1^ii	49.58 (7)	Ce^xi—Al1—Ce^vii	132.32 (8)
Pt1^i—Ce—Al1^ii	93.19 (6)	Ce^x—Al1—Ce^vii	132.32 (8)
Pt1^ii—Ce—Al1^ii	44.47 (7)	Pt3—Al2—Pt3^i	109.06 (11)
Pt2^ii—Ce—Al1^ii	46.68 (7)	Pt3—Al2—Pt3^ii	109.06 (11)
Pt2^i—Ce—Al1^ii	94.60 (6)	Pt3^i—Al2—Pt3^ii	104.48 (14)
Pt3^ii—Ce—Al1^ii	103.66 (5)	Pt3—Al2—Pt1	116.16 (15)
Pt3^i—Ce—Al1^ii	177.37 (5)	Pt3^i—Al2—Pt1	108.72 (11)
Al2^i—Ce—Al1^ii	134.38 (10)	Pt3^ii—Al2—Pt1	108.72 (11)
Al2^ii—Ce—Al1^ii	86.67 (8)	Pt3—Al2—Al3^iii	146.97 (18)
Al3^ii—Ce—Al1^ii	86.84 (8)	Pt3^i—Al2—Al3^iii	56.21 (8)
Al3^i—Ce—Al1^ii	133.43 (10)	Pt3^ii—Al2—Al3^iii	56.21 (8)
Al3^iii—Ce—Al1^ii	137.61 (6)	Pt1—Al2—Al3^iii	96.87 (15)
Al1^i—Ce—Al1^ii	74.06 (9)	Pt3—Al2—Al3^i	55.41 (10)
Al5—Ce—Al4^iii	119.80 (10)	Pt3^i—Al2—Al3^i	53.72 (8)
Pt1^i—Ce—Al4^iii	46.47 (3)	Pt3^ii—Al2—Al3^i	122.12 (16)
Pt1^ii—Ce—Al4^iii	46.47 (3)	Pt1—Al2—Al3^i	128.58 (11)
Pt2^ii—Ce—Al4^iii	129.00 (4)	Al3^iii—Al2—Al3^i	104.43 (13)
Pt2^i—Ce—Al4^iii	129.00 (4)	Pt3—Al2—Al3^ii	55.41 (10)
Pt3^ii—Ce—Al4^iii	95.89 (5)	Pt3^i—Al2—Al3^ii	122.12 (16)
Pt3^i—Ce—Al4^iii	95.89 (5)	Pt3^ii—Al2—Al3^ii	53.72 (8)
Al2^i—Ce—Al4^iii	51.61 (8)	Pt1—Al2—Al3^ii	128.58 (11)
Al2^ii—Ce—Al4^iii	51.61 (8)	Al3^iii—Al2—Al3^ii	104.43 (13)
Al3^ii—Ce—Al4^iii	135.86 (6)	Al3^i—Al2—Al3^ii	90.54 (16)
Al3^i—Ce—Al4^iii	135.86 (6)	Pt3—Al2—Al4^ii	130.46 (10)
Al3^iii—Ce—Al4^iii	73.59 (10)	Pt3^i—Al2—Al4^ii	119.74 (17)
Al1^i—Ce—Al4^iii	85.29 (9)	Pt3^ii—Al2—Al4^ii	52.37 (8)
Al1^ii—Ce—Al4^iii	85.29 (9)	Pt1—Al2—Al4^ii	56.36 (10)
Al5—Ce—Al1^iv	68.20 (10)	Al3^iii—Al2—Al4^ii	67.59 (13)
Pt1^i—Ce—Al1^iv	45.84 (3)	Al3^i—Al2—Al4^ii	171.80 (19)
Pt1^ii—Ce—Al1^iv	45.84 (3)	Al3^ii—Al2—Al4^ii	89.73 (8)
Pt2^ii—Ce—Al1^iv	92.35 (6)	Pt3—Al2—Al4^i	130.46 (10)
Pt2^i—Ce—Al1^iv	92.35 (6)	Pt3^i—Al2—Al4^i	52.37 (8)
Pt3^ii—Ce—Al1^iv	131.67 (4)	Pt3^ii—Al2—Al4^i	119.74 (17)
Pt3^i—Ce—Al1^iv	131.67 (4)	Pt1—Al2—Al4^i	56.36 (10)
Al2^i—Ce—Al1^iv	88.91 (9)	Al3^iii—Al2—Al4^i	67.59 (13)
Al2^ii—Ce—Al1^iv	88.91 (9)	Al3^i—Al2—Al4^i	89.73 (8)
Al3^ii—Ce—Al1^iv	134.40 (7)	Al3^ii—Al2—Al4^i	171.80 (19)
Al3^i—Ce—Al1^iv	134.40 (7)	Al4^ii—Al2—Al4^i	88.83 (16)
Al3^iii—Ce—Al1^iv	125.19 (10)	Pt3—Al2—Ce^x	66.47 (8)
Al1^i—Ce—Al1^iv	47.68 (8)	Pt3^i—Al2—Ce^x	166.69 (11)
Al1^ii—Ce—Al1^iv	47.68 (8)	Pt3^ii—Al2—Ce^x	88.79 (3)
Al4^iii—Ce—Al1^iv	51.60 (9)	Pt1—Al2—Ce^x	64.98 (8)
Al5—Ce—Al2	119.16 (10)	Al3^iii—Al2—Ce^x	134.30 (9)
Pt1^i—Ce—Al2	130.48 (4)	Al3^i—Al2—Ce^x	119.84 (16)
Pt1^ii—Ce—Al2	130.48 (4)	Al3^ii—Al2—Ce^x	66.68 (9)
Pt2^ii—Ce—Al2	93.33 (6)	Al4^ii—Al2—Ce^x	67.65 (9)
Pt2^i—Ce—Al2	93.33 (6)	Al4^i—Al2—Ce^x	119.99 (15)
Pt3^ii—Ce—Al2	44.76 (3)	Pt3—Al2—Ce^xi	66.47 (8)
Pt3^i—Ce—Al2	44.76 (3)	Pt3^i—Al2—Ce^xi	88.79 (3)
Al2^i—Ce—Al2	85.37 (5)	Pt3^ii—Al2—Ce^xi	166.69 (11)
Al2^ii—Ce—Al2	85.37 (5)	Pt1—Al2—Ce^xi	64.98 (8)
Al3^ii—Ce—Al2	49.63 (7)	Al3^iii—Al2—Ce^xi	134.30 (9)
Al3^i—Ce—Al2	49.63 (7)	Al3^i—Al2—Ce^xi	66.68 (9)
Al3^iii—Ce—Al2	47.45 (10)	Al3^ii—Al2—Ce^xi	119.84 (16)
Al1^i—Ce—Al2	136.27 (7)	Al4^ii—Al2—Ce^xi	119.99 (15)
Al1^ii—Ce—Al2	136.27 (7)	Al4^i—Al2—Ce^xi	67.65 (9)
Al4^iii—Ce—Al2	121.04 (10)	Ce^x—Al2—Ce^xi	77.93 (9)
Al1^iv—Ce—Al2	172.64 (9)	Pt3—Al2—Ce	83.38 (11)
Al5—Ce—Ce^v	90.0	Pt3^i—Al2—Ce	61.52 (8)
Pt1^i—Ce—Ce^v	129.698 (12)	Pt3^ii—Al2—Ce	61.52 (8)
Pt1^ii—Ce—Ce^v	50.302 (12)	Pt1—Al2—Ce	160.47 (16)
Pt2^ii—Ce—Ce^v	50.501 (12)	Al3^iii—Al2—Ce	63.59 (11)
Pt2^i—Ce—Ce^v	129.499 (12)	Al3^i—Al2—Ce	61.41 (10)
Pt3^ii—Ce—Ce^v	50.704 (12)	Al3^ii—Al2—Ce	61.41 (10)
Pt3^i—Ce—Ce^v	129.296 (12)	Al4^ii—Al2—Ce	111.80 (12)
Al2^i—Ce—Ce^v	128.96 (5)	Al4^i—Al2—Ce	111.80 (12)
Al2^ii—Ce—Ce^v	51.04 (5)	Ce^x—Al2—Ce	128.08 (9)
Al3^ii—Ce—Ce^v	51.94 (4)	Ce^xi—Al2—Ce	128.08 (9)
Al3^i—Ce—Ce^v	128.06 (4)	Pt3—Al3—Pt3^x	112.49 (10)
Al3^iii—Ce—Ce^v	90.0	Pt3—Al3—Pt3^xi	112.49 (10)
Al1^i—Ce—Ce^v	127.03 (4)	Pt3^x—Al3—Pt3^xi	107.50 (15)
Al1^ii—Ce—Ce^v	52.97 (4)	Pt3—Al3—Pt2	116.27 (16)
Al4^iii—Ce—Ce^v	90.0	Pt3^x—Al3—Pt2	103.59 (11)
Al1^iv—Ce—Ce^v	90.0	Pt3^xi—Al3—Pt2	103.59 (11)
Al2—Ce—Ce^v	90.0	Pt3—Al3—Al2^xiii	156.55 (19)
Al5—Ce—Ce^vi	90.0	Pt3^x—Al3—Al2^xiii	57.97 (8)
Pt1^i—Ce—Ce^vi	50.302 (12)	Pt3^xi—Al3—Al2^xiii	57.97 (8)
Pt1^ii—Ce—Ce^vi	129.698 (12)	Pt2—Al3—Al2^xiii	87.18 (15)
Pt2^ii—Ce—Ce^vi	129.499 (12)	Pt3—Al3—Al2^xi	57.12 (10)
Pt2^i—Ce—Ce^vi	50.501 (12)	Pt3^x—Al3—Al2^xi	125.36 (17)
Pt3^ii—Ce—Ce^vi	129.296 (12)	Pt3^xi—Al3—Al2^xi	55.45 (8)
Pt3^i—Ce—Ce^vi	50.704 (12)	Pt2—Al3—Al2^xi	129.93 (10)
Al2^i—Ce—Ce^vi	51.04 (5)	Al2^xiii—Al3—Al2^xi	108.65 (14)
Al2^ii—Ce—Ce^vi	128.96 (5)	Pt3—Al3—Al2^x	57.12 (10)
Al3^ii—Ce—Ce^vi	128.06 (4)	Pt3^x—Al3—Al2^x	55.45 (8)
Al3^i—Ce—Ce^vi	51.94 (4)	Pt3^xi—Al3—Al2^x	125.36 (17)
Al3^iii—Ce—Ce^vi	90.0	Pt2—Al3—Al2^x	129.93 (10)
Al1^i—Ce—Ce^vi	52.97 (4)	Al2^xiii—Al3—Al2^x	108.65 (14)
Al1^ii—Ce—Ce^vi	127.03 (4)	Al2^xi—Al3—Al2^x	90.54 (16)
Al4^iii—Ce—Ce^vi	90.0	Pt3—Al3—Ce^xi	65.83 (8)
Al1^iv—Ce—Ce^vi	90.0	Pt3^x—Al3—Ce^xi	163.14 (12)
Al2—Ce—Ce^vi	90.0	Pt3^xi—Al3—Ce^xi	87.87 (4)
Ce^v—Ce—Ce^vi	180.00 (4)	Pt2—Al3—Ce^xi	65.04 (8)
Al5^vii—Pt1—Al1	99.44 (14)	Al2^xiii—Al3—Ce^xi	130.03 (10)
Al5^vii—Pt1—Al2	134.94 (13)	Al2^xi—Al3—Ce^xi	68.96 (9)
Al1—Pt1—Al2	125.63 (14)	Al2^x—Al3—Ce^xi	121.12 (15)
Al5^vii—Pt1—Al1^viii	66.12 (10)	Pt3—Al3—Ce^x	65.83 (8)
Al1—Pt1—Al1^viii	65.91 (11)	Pt3^x—Al3—Ce^x	87.87 (4)
Al2—Pt1—Al1^viii	128.80 (7)	Pt3^xi—Al3—Ce^x	163.14 (12)
Al5^vii—Pt1—Al1^ix	66.12 (9)	Pt2—Al3—Ce^x	65.04 (8)
Al1—Pt1—Al1^ix	65.91 (11)	Al2^xiii—Al3—Ce^x	130.03 (10)
Al2—Pt1—Al1^ix	128.80 (7)	Al2^xi—Al3—Ce^x	121.12 (15)
Al1^viii—Pt1—Al1^ix	102.07 (14)	Al2^x—Al3—Ce^x	68.96 (9)
Al5^vii—Pt1—Al4^i	85.20 (10)	Ce^xi—Al3—Ce^x	76.11 (9)
Al1—Pt1—Al4^i	129.02 (7)	Pt3—Al3—Ce^xiii	87.59 (11)
Al2—Pt1—Al4^i	67.49 (10)	Pt3^x—Al3—Ce^xiii	64.25 (8)
Al1^viii—Pt1—Al4^i	150.50 (13)	Pt3^xi—Al3—Ce^xiii	64.25 (8)
Al1^ix—Pt1—Al4^i	70.28 (10)	Pt2—Al3—Ce^xiii	156.14 (16)
Al5^vii—Pt1—Al4^ii	85.20 (10)	Al2^xiii—Al3—Ce^xiii	68.96 (12)
Al1—Pt1—Al4^ii	129.02 (7)	Al2^xi—Al3—Ce^xiii	61.95 (10)
Al2—Pt1—Al4^ii	67.49 (10)	Al2^x—Al3—Ce^xiii	61.95 (10)
Al1^viii—Pt1—Al4^ii	70.28 (10)	Ce^xi—Al3—Ce^xiii	130.91 (8)
Al1^ix—Pt1—Al4^ii	150.50 (13)	Ce^x—Al3—Ce^xiii	130.91 (8)
Al4^i—Pt1—Al4^ii	101.91 (14)	Pt3—Al4—Pt1^x	112.91 (11)
Al5^vii—Pt1—Pt2^iii	53.27 (9)	Pt3—Al4—Pt1^xi	112.91 (11)
Al1—Pt1—Pt2^iii	152.70 (10)	Pt1^x—Al4—Pt1^xi	101.91 (14)
Al2—Pt1—Pt2^iii	81.67 (9)	Pt3—Al4—Pt2^i	102.00 (11)
Al1^viii—Pt1—Pt2^iii	98.24 (9)	Pt1^x—Al4—Pt2^i	144.58 (16)
Al1^ix—Pt1—Pt2^iii	98.24 (9)	Pt1^xi—Al4—Pt2^i	68.14 (4)
Al4^i—Pt1—Pt2^iii	56.60 (8)	Pt3—Al4—Pt2^ii	102.00 (11)
Al4^ii—Pt1—Pt2^iii	56.60 (8)	Pt1^x—Al4—Pt2^ii	68.14 (4)
Al5^vii—Pt1—Ce^x	138.18 (3)	Pt1^xi—Al4—Pt2^ii	144.58 (16)
Al1—Pt1—Ce^x	71.88 (7)	Pt2^i—Al4—Pt2^ii	99.70 (13)
Al2—Pt1—Ce^x	66.99 (7)	Pt3—Al4—Al5	133.61 (18)
Al1^viii—Pt1—Ce^x	73.32 (8)	Pt1^x—Al4—Al5	95.16 (12)
Al1^ix—Pt1—Ce^x	134.93 (9)	Pt1^xi—Al4—Al5	95.16 (12)
Al4^i—Pt1—Ce^x	132.68 (9)	Pt2^i—Al4—Al5	54.17 (7)
Al4^ii—Pt1—Ce^x	71.69 (8)	Pt2^ii—Al4—Al5	54.17 (7)
Pt2^iii—Pt1—Ce^x	126.808 (18)	Pt3—Al4—Al2^x	56.76 (10)
Al5^vii—Pt1—Ce^xi	138.18 (3)	Pt1^x—Al4—Al2^x	56.16 (8)
Al1—Pt1—Ce^xi	71.88 (7)	Pt1^xi—Al4—Al2^x	122.02 (16)
Al2—Pt1—Ce^xi	66.99 (7)	Pt2^i—Al4—Al2^x	158.19 (18)
Al1^viii—Pt1—Ce^xi	134.93 (9)	Pt2^ii—Al4—Al2^x	81.87 (7)
Al1^ix—Pt1—Ce^xi	73.32 (8)	Al5—Al4—Al2^x	135.21 (8)
Al4^i—Pt1—Ce^xi	71.69 (8)	Pt3—Al4—Al2^xi	56.76 (10)
Al4^ii—Pt1—Ce^xi	132.68 (9)	Pt1^x—Al4—Al2^xi	122.02 (16)
Pt2^iii—Pt1—Ce^xi	126.808 (18)	Pt1^xi—Al4—Al2^xi	56.16 (8)
Ce^x—Pt1—Ce^xi	79.40 (2)	Pt2^i—Al4—Al2^xi	81.87 (7)
Al5^xii—Pt2—Al5^x	66.12 (10)	Pt2^ii—Al4—Al2^xi	158.19 (18)
Al5^xii—Pt2—Al5^xi	66.12 (10)	Al5—Al4—Al2^xi	135.21 (8)
Al5^x—Pt2—Al5^xi	111.34 (15)	Al2^x—Al4—Al2^xi	88.83 (16)
Al5^xii—Pt2—Al3	146.25 (13)	Pt3—Al4—Ce^xiii	86.69 (11)
Al5^x—Pt2—Al3	123.69 (8)	Pt1^x—Al4—Ce^xiii	61.84 (8)
Al5^xi—Pt2—Al3	123.69 (8)	Pt1^xi—Al4—Ce^xiii	61.84 (8)
Al5^xii—Pt2—Al1	86.94 (13)	Pt2^i—Al4—Ce^xiii	128.41 (7)
Al5^x—Pt2—Al1	65.56 (9)	Pt2^ii—Al4—Ce^xiii	128.41 (7)
Al5^xi—Pt2—Al1	65.56 (9)	Al5—Al4—Ce^xiii	139.69 (16)
Al3—Pt2—Al1	126.81 (13)	Al2^x—Al4—Ce^xiii	60.74 (10)
Al5^xii—Pt2—Al4^x	83.48 (10)	Al2^xi—Al4—Ce^xiii	60.74 (10)
Al5^x—Pt2—Al4^x	64.67 (11)	Pt1^iv—Al5—Pt2^xiv	74.76 (11)
Al5^xi—Pt2—Al4^x	146.56 (12)	Pt1^iv—Al5—Pt2^ii	119.03 (9)
Al3—Pt2—Al4^x	75.03 (10)	Pt2^xiv—Al5—Pt2^ii	113.88 (10)
Al1—Pt2—Al4^x	128.89 (7)	Pt1^iv—Al5—Pt2^i	119.03 (9)
Al5^xii—Pt2—Al4^xi	83.48 (10)	Pt2^xiv—Al5—Pt2^i	113.88 (10)
Al5^x—Pt2—Al4^xi	146.56 (12)	Pt2^ii—Al5—Pt2^i	111.34 (15)
Al5^xi—Pt2—Al4^xi	64.67 (11)	Pt1^iv—Al5—Al5^xv	101.81 (18)
Al3—Pt2—Al4^xi	75.03 (10)	Pt2^xiv—Al5—Al5^xv	57.04 (14)
Al1—Pt2—Al4^xi	128.89 (7)	Pt2^ii—Al5—Al5^xv	56.83 (8)
Al4^x—Pt2—Al4^xi	99.70 (13)	Pt2^i—Al5—Al5^xv	134.8 (2)
Al5^xii—Pt2—Pt1^xiii	51.98 (9)	Pt1^iv—Al5—Al5^xvi	101.81 (18)
Al5^x—Pt2—Pt1^xiii	93.44 (9)	Pt2^xiv—Al5—Al5^xvi	57.04 (14)
Al5^xi—Pt2—Pt1^xiii	93.44 (9)	Pt2^ii—Al5—Al5^xvi	134.8 (2)
Al3—Pt2—Pt1^xiii	94.27 (9)	Pt2^i—Al5—Al5^xvi	56.83 (8)
Al1—Pt2—Pt1^xiii	138.92 (9)	Al5^xv—Al5—Al5^xvi	98.5 (3)
Al4^x—Pt2—Pt1^xiii	55.25 (7)	Pt1^iv—Al5—Al1^i	60.45 (11)
Al4^xi—Pt2—Pt1^xiii	55.25 (7)	Pt2^xiv—Al5—Al1^i	108.18 (14)
Al5^xii—Pt2—Ce^xi	132.45 (5)	Pt2^ii—Al5—Al1^i	135.95 (18)
Al5^x—Pt2—Ce^xi	130.66 (9)	Pt2^i—Al5—Al1^i	59.80 (9)
Al5^xi—Pt2—Ce^xi	66.49 (9)	Al5^xv—Al5—Al1^i	160.9 (3)
Al3—Pt2—Ce^xi	69.31 (7)	Al5^xvi—Al5—Al1^i	79.86 (10)
Al1—Pt2—Ce^xi	70.28 (7)	Pt1^iv—Al5—Al1^ii	60.45 (11)
Al4^x—Pt2—Ce^xi	143.15 (9)	Pt2^xiv—Al5—Al1^ii	108.18 (14)
Al4^xi—Pt2—Ce^xi	80.09 (8)	Pt2^ii—Al5—Al1^ii	59.80 (9)
Pt1^xiii—Pt2—Ce^xi	135.266 (15)	Pt2^i—Al5—Al1^ii	135.95 (18)
Al5^xii—Pt2—Ce^x	132.45 (5)	Al5^xv—Al5—Al1^ii	79.86 (10)
Al5^x—Pt2—Ce^x	66.49 (9)	Al5^xvi—Al5—Al1^ii	160.9 (3)
Al5^xi—Pt2—Ce^x	130.66 (9)	Al1^i—Al5—Al1^ii	95.42 (17)
Al3—Pt2—Ce^x	69.31 (7)	Pt1^iv—Al5—Al4	179.42 (19)
Al1—Pt2—Ce^x	70.28 (7)	Pt2^xiv—Al5—Al4	104.66 (16)
Al4^x—Pt2—Ce^x	80.09 (8)	Pt2^ii—Al5—Al4	61.16 (9)
Al4^xi—Pt2—Ce^x	143.15 (9)	Pt2^i—Al5—Al4	61.16 (9)
Pt1^xiii—Pt2—Ce^x	135.266 (15)	Al5^xv—Al5—Al4	77.82 (17)
Ce^xi—Pt2—Ce^x	79.00 (2)	Al5^xvi—Al5—Al4	77.82 (17)
Al4—Pt3—Al3	112.12 (14)	Al1^i—Al5—Al4	119.86 (14)
Al4—Pt3—Al3^i	79.12 (11)	Al1^ii—Al5—Al4	119.86 (14)
Al3—Pt3—Al3^i	126.17 (7)	Pt1^iv—Al5—Ce	101.10 (13)
Al4—Pt3—Al3^ii	79.12 (11)	Pt2^xiv—Al5—Ce	175.85 (16)
Al3—Pt3—Al3^ii	126.17 (7)	Pt2^ii—Al5—Ce	67.95 (9)
Al3^i—Pt3—Al3^ii	107.50 (15)	Pt2^i—Al5—Ce	67.95 (9)
Al4—Pt3—Al2	124.36 (13)	Al5^xv—Al5—Ce	124.65 (15)
Al3—Pt3—Al2	123.52 (13)	Al5^xvi—Al5—Ce	124.65 (15)
Al3^i—Pt3—Al2	69.14 (10)	Al1^i—Al5—Ce	69.25 (12)
Al3^ii—Pt3—Al2	69.14 (10)	Al1^ii—Al5—Ce	69.25 (12)
Al4—Pt3—Al2^x	70.87 (10)	Al4—Al5—Ce	79.49 (13)

Symmetry codes: (i) −x+1/2, −y+1, z+1/2; (ii) −x+1/2, −y, z+1/2; (iii) x, y, z+1; (iv) x+1/2, y, −z+3/2; (v) x, y−1, z; (vi) x, y+1, z; (vii) x−1/2, y, −z+3/2; (viii) −x, −y, −z+1; (ix) −x, −y+1, −z+1; (x) −x+1/2, −y, z−1/2; (xi) −x+1/2, −y+1, z−1/2; (xii) x−1/2, y, −z+1/2; (xiii) x, y, z−1; (xiv) x+1/2, y, −z+1/2; (xv) −x+1, −y, −z+1; (xvi) −x+1, −y+1, −z+1.