Key indicators
- Single-crystal X-ray study
- T = 100 K
- Mean
(Mn-S) = 0.002 Å
- R factor = 0.026
- wR factor = 0.068
- Data-to-parameter ratio = 22.0
checkCIF/PLATON results
No syntax errors found
Alert level A
PLAT923_ALERT_1_A S values in the CIF and FCF Differ by ....... -600.016
| Author Response: Presumably, this arises from differences in the weighting
schemes. The weighting scheme we used is clearly spelled out in this
cif file. I do not know what is used in the analysis of the fcf file
so I cannot comment. On the other hand, weighting schemes are on the
philosophical side of modern crystallography. See the satirical discussion
in Dunitz: "X-ray Analysis and the Structure of Organic Molecules",
pp 213-221.
|
PLAT934_ALERT_3_A Number of (Iobs-Icalc)/SigmaW .gt. 10 Outliers . 1502
PLAT971_ALERT_2_A Large Calcd. Non-Metal Positive Residual Density 3.52 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
Alert level B
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U1 -- U3 .. 4.02 Ang.
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U1 -- U2 .. 4.10 Ang.
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U2 -- U1 .. 4.10 Ang.
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U2 -- U1 .. 4.10 Ang.
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U3 -- U1 .. 4.02 Ang.
PLAT774_ALERT_1_B Suspect X-Y Bond in CIF: U3 -- U1 .. 4.02 Ang.
PLAT922_ALERT_1_B wR2 in the CIF and FCF Differ by ............... 0.0210
PLAT927_ALERT_1_B Reported and Calculated wR2 Differ by ......... 0.0109
PLAT928_ALERT_1_B Reported and Calculated S value Differ by . -0.264
PLAT971_ALERT_2_B Large Calcd. Non-Metal Positive Residual Density 3.13 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_B Large Calcd. Non-Metal Positive Residual Density 2.89 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_B Large Calcd. Non-Metal Positive Residual Density 2.81 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
Alert level C
GOODF01_ALERT_2_C The least squares goodness of fit parameter lies
outside the range 0.80 <> 2.00
Goodness of fit given = 2.098
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.973
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density .... 2.01
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 3
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L= 0.600 42
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 2.33 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 2.25 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 2.08 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.96 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.87 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.87 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.81 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.77 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.73 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.73 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT971_ALERT_2_C Large Calcd. Non-Metal Positive Residual Density 1.65 eA-3
| Author Response: This is not a simple organic; it is a heavy-atom structure
(mu = 58 mm-1). The residual electron density
of 3.5 eA-3 needs to be compared with the height of a S peak in
this structure of about 50 eA-3. The residual density is of no
consequence and probably arises from deficiences in the face-
indexed absorption correction.
|
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -2.25 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -2.17 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -2.05 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.73 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.67 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.65 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.64 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.62 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.61 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.61 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.60 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.57 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.55 eA-3
PLAT972_ALERT_2_C Large Calcd. Non-Metal Negative Residual Density -1.52 eA-3
Alert level G
PLAT004_ALERT_5_G Info: Polymeric Structure Found with Dimension . 1
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ?
PLAT794_ALERT_5_G Note: Tentative Bond Valency for U1 (IV) 3.82
PLAT794_ALERT_5_G Note: Tentative Bond Valency for U2 (IV) 4.39
PLAT794_ALERT_5_G Note: Tentative Bond Valency for U3 (IV) 3.78
PLAT794_ALERT_5_G Note: Tentative Bond Valency for Mn1 (II) 3.03
PLAT961_ALERT_5_G Dataset Contains no Negative Intensities ....... !
3 ALERT level A = Most likely a serious problem - resolve or explain
12 ALERT level B = A potentially serious problem, consider carefully
30 ALERT level C = Check. Ensure it is not caused by an omission or oversight
7 ALERT level G = General information/check it is not something unexpected
10 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
31 ALERT type 2 Indicator that the structure model may be wrong or deficient
3 ALERT type 3 Indicator that the structure quality may be low
1 ALERT type 4 Improvement, methodology, query or suggestion
7 ALERT type 5 Informative message, check
Black blocks of MnU8S17 were obtained by combining U (0.126 mmol), Mn
(Johnson Matthey 99.3%, 0.126 mmol), and S (Mallinckrodt 99.6% sublimed, 0.504 mmol) in a RbCl flux (Alfa 99.8%, 1.26 mmol) with As as a mineralizer (Strem
2N, 0.126 mmol). U filings (Oak Ridge National Laboratory) were powdered by
hydridization and subsequent decomposition under heat and vacuum (Bugaris &
Ibers, 2008), in a modification of a previous literature method
(Haneveld &
Jellinek, 1969). The mixture was loaded into a carbon-coated
fused-silica tube
in an Ar filled glove box and then sealed under 10 -4 Torr vacuum. The vessel
was heated in a computer-controlled furnace to 1073 K in 96 h, held for 96 h,
cooled to 673 K in 96 h, then cooled to 298 K in 48 h. The flux was washed off
with water and surface impurities were mechanically removed from a
single crystal.
The structure was standardized by means of the program STRUCTURE TIDY
(Gelato & Parthé, 1987). The highest peak of 3.9 (4) e/Å3 is 1.33 Å
from atom U2 and the deepest hole of -1.9 (4) e/Å3 is 0.88 Å from atom
U3.
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008b); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008b); molecular graphics: CrystalMaker (Palmer, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008b).
Manganese(II) octauranium(IV) heptadecasulfide
top
Crystal data top
MnU8S17 | F(000) = 2066 |
Mr = 2504.20 | Dx = 7.223 Mg m−3 |
Monoclinic, C2/m | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2y | Cell parameters from 8717 reflections |
a = 13.3549 (6) Å | θ = 2.9–30.5° |
b = 8.3893 (4) Å | µ = 58.10 mm−1 |
c = 10.4927 (5) Å | T = 100 K |
β = 101.658 (2)° | Rectangular block, black |
V = 1151.33 (9) Å3 | 0.15 × 0.09 × 0.08 mm |
Z = 2 | |
Data collection top
Bruker APEXII CCD diffractometer | 1609 independent reflections |
Radiation source: fine-focus sealed tube | 1578 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.034 |
ϕ and ω scans | θmax = 29.1°, θmin = 2.0° |
Absorption correction: numerical face indexed (SADABS; Sheldrick, 2008a) | h = −18→17 |
Tmin = 0.043, Tmax = 0.085 | k = −10→11 |
8422 measured reflections | l = −14→14 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.026 | w = 1/[σ2(Fo2) + (0.0161Fo2)2] |
wR(F2) = 0.068 | (Δ/σ)max = 0.001 |
S = 2.10 | Δρmax = 3.90 e Å−3 |
1609 reflections | Δρmin = −1.94 e Å−3 |
73 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008a), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
0 restraints | Extinction coefficient: 0.00082 (4) |
Crystal data top
MnU8S17 | V = 1151.33 (9) Å3 |
Mr = 2504.20 | Z = 2 |
Monoclinic, C2/m | Mo Kα radiation |
a = 13.3549 (6) Å | µ = 58.10 mm−1 |
b = 8.3893 (4) Å | T = 100 K |
c = 10.4927 (5) Å | 0.15 × 0.09 × 0.08 mm |
β = 101.658 (2)° | |
Data collection top
Bruker APEXII CCD diffractometer | 1609 independent reflections |
Absorption correction: numerical face indexed (SADABS; Sheldrick, 2008a) | 1578 reflections with I > 2σ(I) |
Tmin = 0.043, Tmax = 0.085 | Rint = 0.034 |
8422 measured reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.026 | 73 parameters |
wR(F2) = 0.068 | 0 restraints |
S = 2.10 | Δρmax = 3.90 e Å−3 |
1609 reflections | Δρmin = −1.94 e Å−3 |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
U1 | 0.44179 (2) | 0.25549 (3) | 0.29633 (3) | 0.00531 (11) | |
U2 | 0.20440 (3) | 0.0000 | 0.45685 (4) | 0.00510 (12) | |
U3 | 0.68285 (3) | 0.0000 | 0.02025 (4) | 0.00541 (12) | |
Mn1 | 0.0000 | 0.0000 | 0.0000 | 0.0058 (5) | |
S1 | 0.12730 (15) | 0.3047 (2) | 0.46870 (18) | 0.0065 (4) | |
S2 | 0.36424 (15) | 0.3062 (2) | 0.03492 (18) | 0.0064 (4) | |
S3 | 0.0598 (2) | 0.0000 | 0.2314 (3) | 0.0066 (5) | |
S4 | 0.2086 (2) | 0.0000 | 0.7197 (3) | 0.0061 (5) | |
S5 | 0.3030 (2) | 0.0000 | 0.2463 (3) | 0.0058 (5) | |
S6 | 0.5211 (2) | 0.0000 | 0.1694 (3) | 0.0061 (5) | |
S7 | 0.0000 | 0.0000 | 0.5000 | 0.0056 (7) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
U1 | 0.0056 (2) | 0.00542 (18) | 0.00528 (17) | −0.00005 (10) | 0.00195 (13) | 0.00004 (10) |
U2 | 0.0053 (2) | 0.0054 (2) | 0.0051 (2) | 0.000 | 0.00217 (15) | 0.000 |
U3 | 0.0063 (2) | 0.0052 (2) | 0.00499 (19) | 0.000 | 0.00170 (16) | 0.000 |
Mn1 | 0.0047 (12) | 0.0068 (11) | 0.0064 (10) | 0.000 | 0.0024 (9) | 0.000 |
S1 | 0.0062 (10) | 0.0067 (9) | 0.0069 (8) | −0.0004 (8) | 0.0017 (7) | 0.0000 (7) |
S2 | 0.0064 (10) | 0.0058 (9) | 0.0075 (8) | −0.0008 (7) | 0.0023 (7) | 0.0000 (7) |
S3 | 0.0079 (14) | 0.0067 (13) | 0.0057 (11) | 0.000 | 0.0024 (10) | 0.000 |
S4 | 0.0059 (14) | 0.0056 (12) | 0.0071 (12) | 0.000 | 0.0018 (10) | 0.000 |
S5 | 0.0059 (14) | 0.0062 (12) | 0.0058 (11) | 0.000 | 0.0027 (10) | 0.000 |
S6 | 0.0067 (14) | 0.0059 (12) | 0.0055 (12) | 0.000 | 0.0006 (10) | 0.000 |
S7 | 0.0034 (19) | 0.0050 (16) | 0.0091 (17) | 0.000 | 0.0025 (14) | 0.000 |
Geometric parameters (Å, º) top
U1—S3i | 2.7546 (19) | U3—U1iv | 4.0205 (4) |
U1—S2 | 2.7621 (19) | U3—U1vii | 4.0205 (4) |
U1—S1ii | 2.802 (2) | Mn1—S3 | 2.398 (3) |
U1—S5 | 2.8129 (19) | Mn1—S3x | 2.398 (3) |
U1—S6 | 2.8390 (18) | Mn1—S2xi | 2.5168 (19) |
U1—S1iii | 2.8469 (19) | Mn1—S2xii | 2.5168 (19) |
U1—S4iii | 2.852 (2) | Mn1—S2xiii | 2.5168 (19) |
U1—S7i | 2.9509 (3) | Mn1—S2xiv | 2.5168 (19) |
U1—U3iv | 4.0206 (4) | S1—U2iii | 2.763 (2) |
U1—U2iii | 4.0951 (5) | S1—U1xiv | 2.802 (2) |
U2—S3 | 2.735 (3) | S1—U1iii | 2.8469 (19) |
U2—S4 | 2.747 (3) | S2—Mn1i | 2.5168 (19) |
U2—S1iii | 2.763 (2) | S2—U3iv | 2.680 (2) |
U2—S1v | 2.763 (2) | S2—U3xv | 2.896 (2) |
U2—S1 | 2.768 (2) | S3—U1xi | 2.7546 (19) |
U2—S1vi | 2.768 (2) | S3—U1xiv | 2.7546 (19) |
U2—S5 | 2.791 (3) | S4—U3viii | 2.819 (3) |
U2—S7 | 2.8559 (4) | S4—U1v | 2.852 (2) |
U2—U1iii | 4.0952 (5) | S4—U1iii | 2.852 (2) |
U2—U1v | 4.0952 (5) | S5—U1vi | 2.8130 (19) |
U3—S2iv | 2.680 (2) | S5—U3iv | 2.841 (3) |
U3—S2vii | 2.680 (2) | S6—U1vi | 2.8390 (18) |
U3—S4viii | 2.819 (3) | S6—U3iv | 3.031 (3) |
U3—S5iv | 2.841 (3) | S7—U2xvi | 2.8559 (4) |
U3—S2ii | 2.896 (2) | S7—U1xi | 2.9509 (3) |
U3—S2ix | 2.896 (2) | S7—U1iii | 2.9509 (3) |
U3—S6 | 2.912 (3) | S7—U1v | 2.9509 (3) |
U3—S6iv | 3.031 (3) | S7—U1xiv | 2.9509 (3) |
| | | |
S3i—U1—S2 | 76.01 (7) | S2vii—U3—S2ix | 134.99 (5) |
S3i—U1—S1ii | 79.55 (7) | S4viii—U3—S2ix | 71.79 (6) |
S2—U1—S1ii | 140.70 (6) | S5iv—U3—S2ix | 80.27 (6) |
S3i—U1—S5 | 155.43 (8) | S2ii—U3—S2ix | 68.33 (8) |
S2—U1—S5 | 80.28 (7) | S2iv—U3—S6 | 87.07 (5) |
S1ii—U1—S5 | 116.52 (6) | S2vii—U3—S6 | 87.07 (5) |
S3i—U1—S6 | 99.20 (7) | S4viii—U3—S6 | 76.83 (8) |
S2—U1—S6 | 75.58 (7) | S5iv—U3—S6 | 137.15 (8) |
S1ii—U1—S6 | 78.56 (7) | S2ii—U3—S6 | 132.44 (5) |
S5—U1—S6 | 68.37 (7) | S2ix—U3—S6 | 132.44 (5) |
S3i—U1—S1iii | 130.39 (7) | S2iv—U3—S6iv | 73.60 (4) |
S2—U1—S1iii | 139.93 (6) | S2vii—U3—S6iv | 73.60 (4) |
S1ii—U1—S1iii | 78.93 (6) | S4viii—U3—S6iv | 148.59 (8) |
S5—U1—S1iii | 73.14 (7) | S5iv—U3—S6iv | 65.38 (8) |
S6—U1—S1iii | 119.29 (6) | S2ii—U3—S6iv | 131.75 (5) |
S3i—U1—S4iii | 83.16 (6) | S2ix—U3—S6iv | 131.75 (5) |
S2—U1—S4iii | 73.29 (7) | S6—U3—S6iv | 71.77 (8) |
S1ii—U1—S4iii | 133.46 (7) | S2iv—U3—U1iv | 43.17 (4) |
S5—U1—S4iii | 96.17 (6) | S2vii—U3—U1iv | 107.02 (4) |
S6—U1—S4iii | 147.19 (8) | S4viii—U3—U1iv | 147.748 (6) |
S1iii—U1—S4iii | 80.27 (7) | S5iv—U3—U1iv | 44.40 (4) |
S3i—U1—S7i | 65.25 (5) | S2ii—U3—U1iv | 123.06 (4) |
S2—U1—S7i | 127.10 (4) | S2ix—U3—U1iv | 86.95 (4) |
S1ii—U1—S7i | 65.71 (4) | S6—U3—U1iv | 102.46 (5) |
S5—U1—S7i | 137.07 (6) | S6iv—U3—U1iv | 44.81 (3) |
S6—U1—S7i | 142.74 (6) | S2iv—U3—U1vii | 107.02 (4) |
S1iii—U1—S7i | 65.18 (4) | S2vii—U3—U1vii | 43.17 (4) |
S4iii—U1—S7i | 67.79 (5) | S4viii—U3—U1vii | 147.748 (6) |
S3i—U1—U3iv | 110.77 (6) | S5iv—U3—U1vii | 44.40 (4) |
S2—U1—U3iv | 41.58 (4) | S2ii—U3—U1vii | 86.95 (4) |
S1ii—U1—U3iv | 126.98 (4) | S2ix—U3—U1vii | 123.06 (4) |
S5—U1—U3iv | 44.95 (6) | S6—U3—U1vii | 102.46 (5) |
S6—U1—U3iv | 48.80 (6) | S6iv—U3—U1vii | 44.81 (3) |
S1iii—U1—U3iv | 117.93 (4) | U1iv—U3—U1vii | 64.432 (10) |
S4iii—U1—U3iv | 99.54 (5) | S3—Mn1—S3x | 180.0 |
S7i—U1—U3iv | 166.765 (10) | S3—Mn1—S2xi | 87.41 (7) |
S3i—U1—U2iii | 98.80 (5) | S3x—Mn1—S2xi | 92.59 (7) |
S2—U1—U2iii | 114.83 (4) | S3—Mn1—S2xii | 92.59 (7) |
S1ii—U1—U2iii | 98.88 (4) | S3x—Mn1—S2xii | 87.41 (7) |
S5—U1—U2iii | 96.86 (5) | S2xi—Mn1—S2xii | 180.00 (11) |
S6—U1—U2iii | 161.01 (4) | S3—Mn1—S2xiii | 92.59 (7) |
S1iii—U1—U2iii | 42.42 (4) | S3x—Mn1—S2xiii | 87.41 (7) |
S4iii—U1—U2iii | 42.01 (5) | S2xi—Mn1—S2xiii | 99.50 (9) |
S7i—U1—U2iii | 44.218 (7) | S2xii—Mn1—S2xiii | 80.50 (9) |
U3iv—U1—U2iii | 128.230 (12) | S3—Mn1—S2xiv | 87.41 (7) |
S3—U2—S4 | 137.38 (8) | S3x—Mn1—S2xiv | 92.59 (7) |
S3—U2—S1iii | 129.53 (6) | S2xi—Mn1—S2xiv | 80.50 (9) |
S4—U2—S1iii | 82.29 (6) | S2xii—Mn1—S2xiv | 99.50 (9) |
S3—U2—S1v | 129.53 (6) | S2xiii—Mn1—S2xiv | 180.00 (9) |
S4—U2—S1v | 82.29 (6) | U2iii—S1—U2 | 105.75 (7) |
S1iii—U2—S1v | 72.72 (8) | U2iii—S1—U1xiv | 148.40 (8) |
S3—U2—S1 | 80.49 (5) | U2—S1—U1xiv | 95.33 (6) |
S4—U2—S1 | 83.52 (5) | U2iii—S1—U1iii | 104.35 (6) |
S1iii—U2—S1 | 74.25 (7) | U2—S1—U1iii | 93.65 (6) |
S1v—U2—S1 | 145.44 (5) | U1xiv—S1—U1iii | 97.35 (6) |
S3—U2—S1vi | 80.49 (5) | Mn1i—S2—U3iv | 137.09 (8) |
S4—U2—S1vi | 83.52 (5) | Mn1i—S2—U1 | 96.17 (6) |
S1iii—U2—S1vi | 145.44 (5) | U3iv—S2—U1 | 95.25 (6) |
S1v—U2—S1vi | 74.25 (7) | Mn1i—S2—U3xv | 104.41 (7) |
S1—U2—S1vi | 134.89 (9) | U3iv—S2—U3xv | 111.68 (7) |
S3—U2—S5 | 71.28 (8) | U1—S2—U3xv | 106.32 (6) |
S4—U2—S5 | 151.35 (9) | Mn1—S3—U2 | 155.27 (12) |
S1iii—U2—S5 | 74.75 (6) | Mn1—S3—U1xi | 99.23 (8) |
S1v—U2—S5 | 74.75 (6) | U2—S3—U1xi | 97.20 (7) |
S1—U2—S5 | 105.95 (4) | Mn1—S3—U1xiv | 99.23 (8) |
S1vi—U2—S5 | 105.95 (4) | U2—S3—U1xiv | 97.20 (7) |
S3—U2—S7 | 66.83 (6) | U1xi—S3—U1xiv | 96.26 (9) |
S4—U2—S7 | 70.55 (6) | U2—S4—U3viii | 150.90 (11) |
S1iii—U2—S7 | 134.75 (4) | U2—S4—U1v | 93.99 (7) |
S1v—U2—S7 | 134.75 (4) | U3viii—S4—U1v | 105.98 (7) |
S1—U2—S7 | 67.46 (4) | U2—S4—U1iii | 93.99 (7) |
S1vi—U2—S7 | 67.46 (4) | U3viii—S4—U1iii | 105.98 (7) |
S5—U2—S7 | 138.10 (6) | U1v—S4—U1iii | 91.99 (8) |
S3—U2—U1iii | 101.73 (5) | U2—S5—U1 | 104.51 (7) |
S4—U2—U1iii | 44.00 (4) | U2—S5—U1vi | 104.51 (7) |
S1iii—U2—U1iii | 89.36 (4) | U1—S5—U1vi | 99.28 (9) |
S1v—U2—U1iii | 125.64 (4) | U2—S5—U3iv | 156.22 (12) |
S1—U2—U1iii | 43.93 (4) | U1—S5—U3iv | 90.65 (7) |
S1vi—U2—U1iii | 101.83 (4) | U1vi—S5—U3iv | 90.65 (7) |
S5—U2—U1iii | 149.546 (11) | U1vi—S6—U1 | 98.05 (8) |
S7—U2—U1iii | 46.101 (7) | U1vi—S6—U3 | 129.76 (5) |
S3—U2—U1v | 101.73 (5) | U1—S6—U3 | 129.76 (5) |
S4—U2—U1v | 44.00 (4) | U1vi—S6—U3iv | 86.39 (7) |
S1iii—U2—U1v | 125.64 (4) | U1—S6—U3iv | 86.39 (7) |
S1v—U2—U1v | 89.36 (4) | U3—S6—U3iv | 108.23 (8) |
S1—U2—U1v | 101.83 (4) | U2—S7—U2xvi | 180.0 |
S1vi—U2—U1v | 43.93 (4) | U2—S7—U1xi | 90.317 (8) |
S5—U2—U1v | 149.546 (10) | U2xvi—S7—U1xi | 89.682 (8) |
S7—U2—U1v | 46.101 (7) | U2—S7—U1iii | 89.683 (8) |
U1iii—U2—U1v | 60.118 (10) | U2xvi—S7—U1iii | 90.318 (8) |
S2iv—U3—S2vii | 146.88 (9) | U1xi—S7—U1iii | 180.0 |
S2iv—U3—S4viii | 105.15 (4) | U2—S7—U1v | 89.683 (8) |
S2vii—U3—S4viii | 105.15 (4) | U2xvi—S7—U1v | 90.318 (8) |
S2iv—U3—S5iv | 81.18 (4) | U1xi—S7—U1v | 91.925 (11) |
S2vii—U3—S5iv | 81.18 (4) | U1iii—S7—U1v | 88.075 (11) |
S4viii—U3—S5iv | 146.02 (8) | U2—S7—U1xiv | 90.317 (8) |
S2iv—U3—S2ii | 134.99 (5) | U2xvi—S7—U1xiv | 89.682 (8) |
S2vii—U3—S2ii | 68.31 (7) | U1xi—S7—U1xiv | 88.075 (11) |
S4viii—U3—S2ii | 71.79 (6) | U1iii—S7—U1xiv | 91.925 (11) |
S5iv—U3—S2ii | 80.27 (6) | U1v—S7—U1xiv | 180.0 |
S2iv—U3—S2ix | 68.31 (7) | | |
Symmetry codes: (i) x+1/2, y+1/2, z; (ii) x+1/2, −y+1/2, z; (iii) −x+1/2, −y+1/2, −z+1; (iv) −x+1, −y, −z; (v) −x+1/2, y−1/2, −z+1; (vi) x, −y, z; (vii) −x+1, y, −z; (viii) −x+1, −y, −z+1; (ix) x+1/2, y−1/2, z; (x) −x, −y, −z; (xi) x−1/2, y−1/2, z; (xii) −x+1/2, −y+1/2, −z; (xiii) −x+1/2, y−1/2, −z; (xiv) x−1/2, −y+1/2, z; (xv) x−1/2, y+1/2, z; (xvi) −x, −y, −z+1. |
Experimental details
Crystal data |
Chemical formula | MnU8S17 |
Mr | 2504.20 |
Crystal system, space group | Monoclinic, C2/m |
Temperature (K) | 100 |
a, b, c (Å) | 13.3549 (6), 8.3893 (4), 10.4927 (5) |
β (°) | 101.658 (2) |
V (Å3) | 1151.33 (9) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 58.10 |
Crystal size (mm) | 0.15 × 0.09 × 0.08 |
|
Data collection |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Numerical face indexed (SADABS; Sheldrick, 2008a) |
Tmin, Tmax | 0.043, 0.085 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8422, 1609, 1578 |
Rint | 0.034 |
(sin θ/λ)max (Å−1) | 0.685 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.026, 0.068, 2.10 |
No. of reflections | 1609 |
No. of parameters | 73 |
Δρmax, Δρmin (e Å−3) | 3.90, −1.94 |
Single crystals of MnU8S17 were obtained in an attempt to synthesize a quaternary arsenic-containing compound (see Experimental).
MnU8S17 crystallizes in the CrU8S17 structure type (Noël et al., 1975). Structure determinations based on single crystal data for isostructural ScU8S17 (Vovan & Rodier, 1979) and FeU8S17 (Kohlmann et al., 1997) have also been reported, and MnU8S17 was also determined to be isostructural from powder diffraction experiments (Noël, 1973).
The structure comprises three independent U atoms, each coordinated by eight S atoms in a bicapped trigonal prismatic arrangement, and one independent Mn atom that is coordinated by six S atoms in a distorted octahedral arrangement (Figs. 1,2). There are no S—S bonds in the structure, so formal oxidation states of +IV, +II, and -II may be assigned to U, Mn, and S, respectively. U—S distances have the following ranges: U1—S: 2.7546 (19) Å to 2.9509 (3) Å; U2—S: 2.735 (3) Å to 2.8559 (4) Å; U3—S: 2.680 (2) Å to 3.031 (3) Å. These distances are similar to those found in the structures of the Cr and Fe analogues. Mn—S distances range from 2.398 (3) Å to 2.5168 (19) Å; these are shorter than a typical high-spin six-coordinate MnII—S distance of 2.66 Å, but are consistent with the typical low-spin six-coordinate MnII—S distance of 2.51 Å (Shannon, 1976). Low-spin MnII is consistent with the 6S5/2 configuration assigned from magnetic studies (Noël & Troc, 1979).