Startseite Crystal structure of bis(N,N,N-trimethylbutanaminium)tridecathiotrimolybdate(2−), (BuMe3N)2[Mo3S13]
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Crystal structure of bis(N,N,N-trimethylbutanaminium)tridecathiotrimolybdate(2−), (BuMe3N)2[Mo3S13]

  • Kang-Woo Kim ORCID logo EMAIL logo und Sunghyeon Kim
Veröffentlicht/Copyright: 23. Mai 2025

Abstract

C14H36N2Mo3S13, monoclinic, P21/n (no. 14), a = 12.537(6) Å, b = 11.915(6) Å, c = 21.511(10) Å, β = 92.829(19)°, V = 3209(3) Å3, Z = 4, R gt(F) = 0.0332, wR ref(F 2) = 0.0804, T = 223 K.

CCDC no.: 2450608

1 Source of material

(NH4)2MoS4 (0.020 g, 0.077 mmol) and BuMe3NI (0.112 g, 0.461 mmol) were charged to a Pyrex tube with diameter of 9 mm and about 0.5 mL MeOH was added as a solvent. While the solvent was being frozen, the Pyrex tube was evacuated under vacuum and sealed with the use of a flame. The sealed tube was placed in an oven and heated at 110 °C for one day, then cooled in an ice/water bath for over 6 h. Dark red block crystals were isolated by filtration and washed with MeOH and diethyl ether several times. Crystals of (BuMe3N)2[Mo3S13] were obtained in 42 % yield, based on the Mo metal used (Table 1).

Table 1:

Data collection and handling.

Crystal: Red block
Size: 0.08 × 0.08 × 0.06 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 2.01 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω scans
θ max, completeness: 28.3°, 100 %
N(hkl)measured, N(hkl)unique, R int: 44143, 7903, 0.056
Criterion for I obs, N(hkl)gt: I obs > 2σ(I obs), 5,887
N(param)refined: 289
Programs: Bruker, 1 SHELX, 2 WinGX, 3 Diamond 4

2 Refinement

H atoms were positioned geometrically and treated as riding, with C–H = 0.98 (CH2) and 0.97 (CH3) Å with U iso(H) = 1.2 (1.5 for methyl) U eq(C). H atoms of the CH3 were positioned to be staggered with respect to the shortest other bond to the atom to which the CH3 is attached.

3 Comment

The title compound, (BuMe3N)2[Mo3S13], was prepared by the solvothermal reaction of (NH4)2MoS4 and BuMe3NI. It consists of a [Mo3S13]2− anion and two charge-balancing BuMe3N+ cations. The [Mo3S13]2− cluster anion is known as a versatile precursor for various applications, including porous Mo/S chalcogels and hydrogen evolution catalysts. 5 , 6 , 7 , 8 To date, the [Mo3S13]2− anion has been stabilized and structurally characterized with only a limited number of cations such as NH4 +, 9 , 10 Cs+, 11 and organic cations: Me4N+, 12 , 13 H3NCH2CH2NH3 2+, 14 and Ph4As+. 9 As an unsymmetrical mixed tetraalkylammonium cation, BuMe3N+ represents a new type of organic cation employed for stabilizing the [Mo3S13]2− anion.

The structure of the discrete trinuclear [Mo3S13]2− cluster reveals that three Mo centers are linked to form a triangle capped by an apical sulfur atom, along with three bridging and three terminal disulfide (S2 2−) ligands. The [Mo3S13]2− formula is more precisely described as [Mo3(μ 3-S)(μ 2-S2)3(S2)3]2−, with each Mo atom in the +4 oxidation state. Metal–metal single bonds are present between the Mo atoms, which adopt d 2 valence electron configuration. The Mo–Mo bond distances range from 2.738(1) to 2.744(1) Å, with an average of 2.741 Å. This average bond distance is slightly longer than those observed in [Mo3S13]2− clusters stabilized with Me4N+ (2.735 Å), Ph4As+ (2.725 Å), NH4 + (2.722 Å), Cs+ (2.719 Å), and H3NCH2CH2NH3 2+ (2.708 Å), indicating that the [Mo3S13]2− cluster in (BuMe3N)2[Mo3S13] is the largest known to date. The triangle formed by the three Mo atoms expands into a larger, inverted triangle upon inclusion of the three bridging disulfide sulfur atoms (S(2), S(4) and S(6)), as Mo(1), Mo(2), Mo(3), S(2), S(4), and S(6) lie in a plane with a maximum deviation of just 0.101 Å. The apical sulfur atom, S(1), bridges the three Mo atoms nearly symmetrically, with Mo–(μ 3-S) bond distances ranging from 2.387(1) to 2.397(1) Å. The bridging disulfide ligands exhibit slight asymmetry, with Mo–S bond distances falling into two ranges: 2.424(1)–2.438(1) Å and 2.499(1)–2.510(2) Å. Similarly, the terminal disulfide ligands show slight asymmetry, with Mo–S bond distances of 2.433(1)–2.437(1) Å and 2.476(2)–2.495(2) Å. The average S–S bond distance for the terminal disulfide ligands is 2.081 Å, slightly longer than that of the bridging disulfide ligands (2.048 Å).

In the preparation of (BuMe3N)2[Mo3S13], the [MoS4]2− anion served as the source of both Mo and S atoms. Although we initially attempted to isolate the [MoS4]2− anion stabilized with BuMe3N+ cations, the Mo(VI) centers appeared to undergo reduction to Mo(IV), likely driven by the oxidation of S2− to S2 2−. This redox process resulted in the formation of the [Mo3(S)(S2)6]2− anion, stabilized by BuMe3N+ cations. In contrast, previous syntheses of [Mo3S13]2− complexes employed Mo metal or Mo x O y n species as Mo sources under hydrothemal conditions.


Corresponding author: Kang-Woo Kim, Department of Chemistry, Research Institute for Natural Sciences, Incheon National University, Incheon 22012, Korea, E-mail:

Acknowledgments

This work was supported by the Incheon National University Research Grant in 2024.

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Received: 2025-04-17
Accepted: 2025-05-13
Published Online: 2025-05-23
Published in Print: 2025-08-26

© 2025 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. Hydrothermal synthesis, crystal structure of [K3:N1:N2:N4-3-(pyridin-2-yl)-1,2,4-triazole] binuclear Ni(II) complex[Ni2(C7H5N4)2(C7H4ClO2)2]
  4. The crystal structure of di(thiocyanato-κ1N)-bis(methanol)-di(1,3-bis((pyridin-4-ylthio)methyl)benzene)-iron(II), C40H40FeN6O2S6
  5. Crystal structure of poly[(μ 3-3,3″,5,5″-tetrafluoro-(1,1′:4′,1″-terphenyl)-4,4″-dicarboxylate-κ 3 O,O:O″)-(μ 4-3,3″,5,5″-tetrafluoro-(1,1′:4′,1″-terphenyl)-4,4″-dicarboxylate-κ 4 O,O,O,O‴)-dicadmium(II)]dimethylformamide solvate, C47H30Cd2F8N3O12
  6. The crystal structure of a 3d-4f complex based on 2-(benzo[d]thiazol-2-yl)-6-methoxyphenol C31H27N4O13S2CoEr
  7. Crystal structure of poly[(μ 2-1,4-bis(imidazol-1-yl)benzene-k 2 N:N′)(μ 4-biphenyl-3,3′,5,5′-tetracarboxylic-k 4 O,O,O,O)dizinc(II)] dihydrate, C40H28Zn2N8O9
  8. The crystal structure of 4-(bis(2-chloroethyl)amino)-2-hydroxybenzaldehyde, C11H13Cl2NO2
  9. Synthesis and crystal structure of-(10S,13S,16R,Z) −17-ethylidene-16-hydroxy-10,13-dimethylhexadecahydro-3 H-cyclopenta[α]phenanthren-3-one, C21H32O2
  10. The crystal structure of catena-((μ 2-4,4′-bipyridine-κ 2 N:N′)-bis(4-fluorobenzoato-κ1O)-copper(II)), C24H16F2N2O4Cu
  11. Crystal structure of catena-poly[(ethylenediamine-κ2 N,N′)-μ-tetraoxomolybdato(VI) zinc(II)], C2H8MoN2O4Zn
  12. The crystal structure of 4-chloro-1H-pyrazole-3-carboxylic acid, C4H3ClN2O2
  13. The crystal structure of bepotastine besilate, C27H31ClN2O6S
  14. The crystal structure of (η 6-p-cymene)benzyldiphenylphosphine-diiodido-ruthenium(II) dichloromethane solvate
  15. The crystal structure of poly[(μ 2-1-(1-imidazolyl)-4- (imidazol-1′-yl-methyl)benzene κ 2 N:N′)-(μ 2-3-nitrobenzene -1,2-dicarboxylato-k4,O,O′:O′′,O′′′]zinc(II)-κ 2, C21H15N5O6Zn
  16. The crystal structure of (2R,4S)-5-([1,1′-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)amino)-2-methyl pentanoic acid, C23H29NO4
  17. The crystal strucure of [2,2′-{1,2-phenylenebis [(azanylylidene)methanylylidene]}bis(4-fluorophenolato)-κ4 N,N′,O,O′] nickel(II) N, N-dimethylformamide solvate, C23H19F2N3NiO3
  18. The structure of (E)-6-(cyclopropylmethyl)-11-(2,2-difluoropropylidene)-2-methyl-6, 11-dihydrodibenzo[c,f][1,2]thiazepine 5,5-dioxide, C21H21F2NO2S
  19. Crystal structure of catena-poly[(μ 2-(2-(1H-imidazol-1-ylmethyl)benzyl)-1H-imidazole κ2N:N′)- (μ 2-cyclohexane-1,2-dicarboxylato κ2O,O′)cobalt(II) monohydrate]
  20. The crystal structure of 3,5,7-trinitro-1,3,5,7-oxatriazocane
  21. Crystal structure of poly[(μ2-nitrato-κ3 O,O′:O′′)(μ2-1-[(2-propyl-1H-benzimidazole-1-yl)methyl]-1H-benzotriazole-k2 N:N′)silver(I)], C17H17AgN6O3
  22. The crystal structure of (5-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-sulfanylidene-1,3,4-oxadiazol-3(2H)-yl)(3-methylphenyl)methanone, C18H14N2O4S
  23. The crystal structure of diaqua-bis[5-(4-methylphenyl)-1H-pyrazole-3-carboxylato-κ2N,O]-cobalt(II), C11H11Co0.5N2O3
  24. Crystal structure of 2-(6-methoxynaphthalen-2-yl)-N-(4-morpholinophenyl)propanamide, C24H26N2O3
  25. The crystal structure of sodium methylsulfonate
  26. Crystal structure of catena-poly[bis(isothiocyanate κ 1 N)-(μ 2-3,3ʹ-methylenebis(1-methyl-1,3-dihydro-2H-imidazole-2-thione)-κ 2 S:S′)-cobalt(II)], C11H12CoN6S4
  27. The crystal structure of {hexakis(1-methyl-1H-imidazole-κ 1N)nickel(II)} (μ 2-oxo)-hexaoxido-di-molybdenum(VI)─1-methyl-1H-imidazole (1/2), C32H48NiMo2N16O7
  28. 6-(Diphenylphosphoryl)-3,3′,6′-tris(10H-phenoxazin-10-yl)-[1,1′-biphenyl]-2,2′-dicarbonitrile, C62H38N5O4P
  29. The crystal structure of R-2′-amino-N-methyl-N-(1-phenylethyl)-[1,1′-biphenyl]-4-carboxamide, C22H22N2O
  30. The crystal structure of bis{tetrakis(n-butyl)(μ-hydroxy)(2,3,5,6-tetrafluorobenzoate) (μ 3 -oxo)ditin(IV)}
  31. Crystal structure of catena-poly[aqua-(μ 2(3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylato-κ 2 O:O′)-(3,6-bis(4′-pyridyl)-1,2,4,5-tetrazine-κ 1 N)zinc(II)], C22H16N6O5S2Zn
  32. The crystal structure of 3-bromo-5-cyano–N-(5-(cyanomethyl)quinolin-8-yl)pentanamide, C19H15BrN4O
  33. The crystal structure of bis(tetramethylammonium) (di-μ2-aqua)hexaaqua-dibarium(II)) decavanadate
  34. The crystal structure of catena-poly(bis(μ 2-chlorido)- (μ 2-4′-(pyridin-4-yl)-2,2′:6′,2″-terpyridine–N′, N″, N‴:N″″) -chlorido-dicopper(I,II)) monohydrate, C20H16N4OCl3Cu2
  35. Crystal structure of spiropachysine, C31H46N2O
  36. Crystal structure of poly[aqua-(μ 2-3-bromoisonicotinato-κ 2 N: O)-(μ 2-3-bromoisonicotinato-κ 3 N: O: O′)-(μ 3-3-bromoisonicotinato-κ 3 N: O: O′)-(μ 2-nitrite-κ 3 O: O′: O″)dicadmium(II) monohydrate], C19H12Br3Cd2N3O9
  37. The crystal structure of 2-acetylpyridine-ortho-fluoro-phenylhydrazone, C14H12FN3O
  38. The crystal structure of poly(triaqua-(m 2-2,2′-bipyridine-4,4′-dicarboxylato-K 2 O:O′)-bis(m 2-2-2′-bipyridine-4,4′-dicarboxylato-K 4 O,O′:O″:O‴)dierbium(III)) hydrate, C36H26Er2N6O16
  39. The crystal structure of 1,1′-(phenazine-5,10-diyl)bis(heptan-1-one), C26H34N2O2
  40. The crystal structure of (4-([2,2′:6′,2″-terpyridin]-4′-yl)phenyl)boronic acid, C21H16BN3O2
  41. Crystal structure of 6-hydroxy-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione, C6H3N3O3
  42. Crystal structure of N′-((1-hydroxycyclohexyl)(phenyl)methyl)-2-methoxybenzohydrazide ethanol solvate, C23H30N2O4
  43. Crystal structure of pyridinium tetrakis[1,1,1-trifluoro-2,4-pentadionato-K2 O,O′]lutetium(III) C20F12H16LuO8C5H6N
  44. Crystal structure of dichlorido–tetrakis{3-((1H-1,2,4-triazol-1-yl)methyl)-1-(4-chlorophenyl)-4,4-dimethylpentan-3-ol-k 1N}cobalt(II), C64H88O4N12Cl6Co
  45. The crystal structure of tetrakis(4-allyl-2-methoxyphenyl nicotinato-k 1 N)bis(thiocyanato-k 1 N)cobalt(II)
  46. The crystal structure of methyl 4-(3,4-dichlorophenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C20H21Cl2NO3
  47. The crystal structure of (E)–N-(4-chlorobenzylidene)(4-chlorophenyl)methanamine, C14H11Cl2N
  48. Crystal structure of (E)-4-(4-ethylbenzylidene)-6,8-dimethoxy-3,4-dihydrobenzo[b]oxepin-5(2H)-one, C21H22O4
  49. Crystal structure of 4-bromo-3-nitro-1H-pyrazole-5-carboxylic acid dimethyl sulfoxide monosolvate, C4H2N3O4⋅C2H6OS
  50. Crystal structure of-(1S,4aR,5S)-5,6,7-trihydroxy-8-isopropyl-1-methyl-1,2,3,4,5,10,11,11a-octahydro-4a,1-(epoxymethano)dibenzo[a,d][7]annulen-13-one C20H26O5
  51. Crystal structure of 7,9-dimethoxy-2-methyl-4-propylbenzo[f]isoquinolin-5-yl 4-bromobenzoate, C26H24BrNO4
  52. Crystal structure of bis(N,N,N-trimethylbutanaminium)tridecathiotrimolybdate(2−), (BuMe3N)2[Mo3S13]
  53. Crystal structure of N-(adamantan-1-yl)-4-methylpiperazine-1-carbothioamide, C16H27N3S
  54. Crystal structure of poly[(μ 2-2,2′-[1,4-phenylenebis(methylenesulfanediyl)]dibenzoato-κ 4 O,O′:O″,O‴)-(μ 2-1,1′-([1,1′-biphenyl]-4,4′-diyl)bis(1H-benzimidazole)-κ 2 N:N′)cadmium(II)]dimethylformamide solvate, C51H41N5O5S2Cd
  55. The crystal structure of 2-benzoyl-3′,4′,5′,6′-tetrahydrospiro[isoindoline-1,2′-pyran]-3-one, C19H17NO3
  56. The crystal structure of 1-(4-cyanobenzyl)-4-phenyl-1,4-dihydropyridine-3-carbonitrile, C20H15N3
  57. Crystal structure of (1,3-dioxolan-2-ylmethyl)triphenylphosphonium bromide, C22H22BrO2P
  58. Crystal structure of [(2,4-dichlorobenzyl)triphenylphosphonium] tetrachloridomanganese(II)
  59. The crystal structure of 2-(2-hydroxy-4-n-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, C33H39N3O2
  60. Crystal structure of catena-poly[aqua-(5-carboxypyridine-2-carboxylate-κ 2N,O)(2,5-pyridine-dicarboxylate-κ 4O,O′:N:O″)bismuth(III)], C14H9BiN2O9
  61. Crystal structure of (E)-1-fluoro-4-(2-(phenylsulfonyl)vinyl)benzene, C14H11FO2S
  62. Crystal structure of methyl 2-amino-3-chloro-4-methoxybenzoate, C9H10ClNO3
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