Home Physical Sciences Crystal structure of bis(N,N,N-trimethylbutanaminium) poly[heptaselenidotristannate(IV)], C14H36N2Se7Sn3
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Crystal structure of bis(N,N,N-trimethylbutanaminium) poly[heptaselenidotristannate(IV)], C14H36N2Se7Sn3

  • Kang-Woo Kim EMAIL logo and Man-Young Heo
Published/Copyright: January 29, 2018

Abstract

C14H36N2Se7Sn3, monoclinic, C2/c (no. 15), a = 23.950(4) Å, b = 13.760(2) Å, c = 20.011(3) Å, β = 114.565(7)°, V = 5997.9(17) Å3, Z = 8, Rgt(F) = 0.0546, wRref(F2) = 0.1393, T = 223 K.

CCDC no.:: 1815879

Parts of the title crystal structure are shown in the figure. Hydrogen atoms are omitted for clarity. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Orange platelet
Size:0.18 × 0.13 × 0.07 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:109.8 cm−1
Diffractometer, scan mode:PHOTON 100 CMOS, φ and ω
2θmax, completeness:57°, >99%
N(hkl)measured, N(hkl)unique, Rint:94011, 7553, 0.096
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 6259
N(param)refined:236
Programs:Bruker programs [1], SHELX [2], ORTEP [3], DIAMOND [4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
Sn10.07732(3)0.44017(5)0.25203(4)0.02088(16)
Sn20.22342(3)0.34304(5)0.25175(4)0.02169(16)
Sn30.20014(3)0.61360(5)0.25293(4)0.02124(16)
Se10.13440(4)0.46558(7)0.15885(5)0.0206(2)
Se20.14803(5)0.29472(8)0.30691(7)0.0286(2)
Se30.12061(5)0.60685(8)0.30734(6)0.0260(2)
Se40.28886(5)0.49279(8)0.30943(6)0.0275(2)
Se50.02808(5)0.42388(9)0.35090(6)0.0277(2)
Se60.31088(5)0.22705(8)0.35065(6)0.0274(2)
Se70.23250(5)0.24958(8)0.14841(6)0.0277(2)
N10.2429(5)0.0233(9)0.4744(6)0.043(3)
N2−0.0209(5)0.7069(8)0.0458(6)0.038(2)
C10.2309(9)−0.0632(17)0.5111(10)0.076(6)
H1A0.2413−0.12120.49200.115*
H1B0.1883−0.06500.50190.115*
H1C0.2555−0.05940.56300.115*
C20.3091(7)0.0229(18)0.4888(11)0.083(7)
H2A0.3187−0.03630.47050.124*
H2B0.33370.02740.54080.124*
H2C0.31770.07730.46460.124*
C30.2271(11)0.1131(17)0.5032(13)0.092(7)
H3A0.18420.11260.49270.138*
H3B0.23610.16850.48020.138*
H3C0.25080.11650.55530.138*
C40.2051(7)0.0157(12)0.3913(8)0.051(4)
H4A0.21800.06690.36750.061*
H4B0.2142−0.04600.37460.061*
C50.1383(10)0.023(2)0.3677(13)0.100(8)
H5A0.1269−0.02110.39770.120*
H5B0.12910.08830.37820.120*
C60.0999(10)0.002(2)0.2921(12)0.093(7)
H6A0.11790.03070.26130.112*
H6B0.05990.03200.27900.112*
C70.0919(14)−0.107(3)0.278(2)0.163(16)
H7A0.0684−0.11890.22650.244*
H7B0.0710−0.13460.30530.244*
H7C0.1316−0.13730.29320.244*
C80.0091(9)0.6204(13)0.0300(10)0.067(5)
H8A0.05150.63460.04240.100*
H8B−0.01120.6046−0.02120.100*
H8C0.00620.56630.05870.100*
C90.0129(8)0.7269(16)0.1266(10)0.072(6)
H9A0.05560.73740.13820.109*
H9B0.00870.67230.15400.109*
H9C−0.00390.78380.13910.109*
C10−0.0856(8)0.6894(17)0.0285(10)0.073(6)
H10A−0.10320.74670.03930.110*
H10B−0.08910.63610.05740.110*
H10C−0.10700.6740−0.02280.110*
C11−0.0089(11)0.7934(15)0.0072(14)0.093(8)
H11A−0.01790.85230.02760.112*
H11B0.03440.79460.01730.112*
C12−0.0446(12)0.7937(16)−0.0716(13)0.090(7)
H12A−0.08420.8231−0.08240.108*
H12B−0.05170.7271−0.08900.108*
C13−0.008(3)0.858(3)−0.121(2)0.21(2)
H13A0.03300.8355−0.10890.252*
H13B−0.03250.8565−0.17360.252*
C14−0.010(3)0.940(3)−0.093(2)0.24(3)
H14A0.00650.9881−0.11500.354*
H14B0.01470.9377−0.04120.354*
H14C−0.05130.9559−0.10260.354*

Source of materials

[CH3COCHC(O)CH3]2SnCl2 (0.020 g, 0.052 mmol), K2Se (0.016 g, 0.10 mmol) and BuMe3NI (0.024 g, 0.10 mmol) were charged to a Pyrex tube with diameter of 9 mm under an argon atmosphere and about 0.5 mL 1:2 (v/v) H2O/MeOH mixture was added as a solvent. While the solvent was 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 a day, then cooled to room temperature. Orange red hexagonal plate crystals were isolated by filtration and washed with MeOH and diethyl ether several times. Crystals of (BuMe3N)2[Sn3Se7] were obtained in 61% yield, based on the Sn metal used.

Experimental details

H atoms were positioned geometrically, with C—H = 0.97 (CH2) and 0.96 (CH3) Å with Uiso(H) = 1.2 (1.5 for methyl) Ueq(C). The disorder of the cationic substructure, associated with large ellipsoids even for the carbon atoms, didn’t allow a refinement of the hydrogen atoms nor the refinement of conformation in the case of the methyl groups.

Comment

The title compound, (BuMe3N)2[Sn3Se7], is composed of a 2D layered [Sn3Se7]2− anion and charge-balancing BuMe3N+ cations. (BuMe3N)2[Sn3Se7] is a new member in the family of compounds containing the [Sn3Se7]2− anion and features to be stabilized with a mixed alkyl ammonium cation, BuMe3N+. The cations used to stabilize the [Sn3Se7]2− anion are diverse and can be classified into four different groups: Firstly, alkali metal ions such as Cs+ [5], secondly, organic ammonium cations such as Et4N+, Et3NH+, Pr3NH+, (enH2)2+, NH3(CH2)8NH32+, NH3(CH2)10NH32+ [6], [7], [8], [9], [10], thirdly, metal-amine complex cations such as [Mn(dien)2]2+, [Mn(tatda)]2+, [Fe(tatda)]2+, [Fe(phen)]2+ [11], [12], [13], and fourthly, cations of ionic liquids such as Bzmim+ (Bzmim = 1-benzyl-3-methylimidazolium), prmmim+ (prmmim = 1-propyl-2,3-dimethylimidazolium), bmmim+ (bmmim = 1-butyl-2,3-dimethylimidazolium) [13], [14], [15], [16] have been used as counter cations for the [Sn3Se7]2− anion. Another feature of (BuMe3N)2[Sn3Se7] is that it has been prepared by the use of a Sn(IV) compound and K2Se as reactants instead of elemental Sn and Se. So far, most [Sn3Se7]2− compounds have been prepared by the use of elemental Sn and Se, except a few cases where K2Sn2Se5 or SnSe2 was used as a source of Sn and Se [5, 9, 16].

(BuMe3N)2[Sn3Se7] crystallizes in the space group C2/c. The [Sn3Se7]2− anion in (BuMe3N)2[Sn3Se7] can be depicted as [Sn3Se7]n2n−, considering its 2D polymeric structure. In the layer of [Sn3Se7]n2n−, Sn3Se7 units are interconnected to one another by two edge-sharing μ2-Se atoms to form hexagonal six-membered rings and finally to result in the 2D layer (cf. the figure). The stacking sequences of [Sn3Se7]n2n− layers in [Sn3Se7]2− compounds are either AB or AA. (BuMe3N)2[Sn3Se7] turned out to possess AA stacking of the [Sn3Se7]n2n− layers. The other reported [Sn3Se7]2− compounds with AA stacking of the [Sn3Se7]n2n− layers are Cs2Sn3Se7 and [Emim]5[Sn3Se7]2Cl (Emim = 1-ethyl-3-methylimidazolium) [5, 14] . In the title structure, the Sn—Se distances and the bridging Sn—Se—Sn angles for μ2-Se atoms are in the range of 2.5184(13)–2.7762(12) Å and 88.81(4)−89.31(4)°, respectively. This contribution forms part of our continuing interest in selenidometallates [17].

Acknowledgements

This work was supported by the Incheon National University Research Grant in 2017.

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Received: 2017-8-27
Accepted: 2018-1-9
Published Online: 2018-1-29
Published in Print: 2018-3-28

©2018 Kang-Woo Kim et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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  56. Crystal structure of bis(4-dimethylamino-pyridin-1-ium)tetrafluorosuccinate, C18H22F4N4O4
  57. Crystal structure of dimethyl 3,9-dibenzyl-6,12-dicyclohexyl-3,9-diazahexacyclo [6.4.0.02,7.04,11.05,10]-dodecane-1,11-dicarboxylate, C40H50N2O4
  58. Crystal structure of diethyl 3,9-diphenyl-6,12-bis(3-methoxyphenyl)-3,9-diazahexacyclo[6.4.0.02,7.04,11.05,10]dodecane-1,11-dicarboxylate, C42H42N2O6
  59. Crystal structure of bis(acetato-κO)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)nickel(II), C18H22N4NiO6
  60. Crystal structure of (N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3N,O,O′)-diphenyltin(IV), C28H23FN2O3Sn
  61. Crystal structure of {N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3O,N,O′}dimethyltin(IV), C18H19FN2O3Sn
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