Home Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn
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Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn

  • See Mun Lee , Kong Mun Lo and Edward R.T. Tiekink ORCID logo EMAIL logo
Published/Copyright: September 14, 2019

Abstract

C27H28BrOPSn, monoclinic, P21/n (no. 14), a = 10.9369(1) Å, b = 12.2170(1) Å, c = 18.8402(1) Å, β = 91.869(1)°, V = 2516.01(3) Å3, Z = 4, Rgt(F) = 0.0279, wRref(F2) = 0.0754, T = 100(2) K.

CCDC no.: 1949171

The molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colourless prism
Size:0.12 × 0.09 × 0.05 mm
Wavelength:Cu Kα radiation (1.54178 Å)
μ:10.7 mm−1
Diffractometer, scan mode:XtaLAB Synergy, ω
θmax, completeness:67.1°, >99%
N(hkl)measured, N(hkl)unique, Rint:30870, 4495, 0.042
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4337
N(param)refined:283
Programs:CrysAlisPRO [1], SHELX [2], [3], WinGX/ORTEP [4]
Table 2:

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

AtomxyzUiso*/Ueq
Sn0.02929(2)0.84769(2)0.61965(2)0.01561(8)
Br1−0.09685(3)1.02526(3)0.65607(2)0.02819(10)
P10.24204(7)0.62021(6)0.56279(4)0.01706(16)
O10.1374(2)0.68686(19)0.58834(12)0.0225(5)
C1−0.0219(3)0.7513(3)0.70769(17)0.0233(7)
H1A0.05080.71590.72900.035*
H1B−0.08070.69530.69160.035*
H1C−0.05950.79830.74310.035*
C2−0.0636(3)0.8264(3)0.51999(18)0.0266(7)
H2A−0.01900.86470.48320.040*
H2B−0.14640.85640.52220.040*
H2C−0.06810.74820.50860.040*
C30.2009(3)0.9286(2)0.62478(16)0.0171(6)
C40.2567(3)0.9601(3)0.56236(17)0.0202(6)
H40.21600.94760.51780.024*
C50.3707(3)1.0092(3)0.56474(17)0.0221(7)
H50.40651.03100.52170.026*
C60.4342(3)1.0275(2)0.62886(18)0.0215(7)
C70.3771(3)0.9979(3)0.69132(18)0.0238(7)
H70.41771.01090.73590.029*
C80.2621(3)0.9500(3)0.68939(17)0.0220(7)
H80.22460.93160.73260.026*
C90.5622(3)1.0747(3)0.6307(2)0.0290(7)
H9A0.62191.01510.62800.044*
H9B0.57631.11540.67500.044*
H9C0.57121.12410.59020.044*
C100.3890(3)0.6785(3)0.58721(17)0.0199(6)
C110.4762(3)0.7036(3)0.53737(17)0.0227(7)
H110.46030.68750.48860.027*
C120.5867(3)0.7521(3)0.55885(19)0.0268(7)
H120.64560.76970.52470.032*
C130.6106(3)0.7746(3)0.6293(2)0.0307(8)
H130.68600.80750.64380.037*
C140.5249(3)0.7495(3)0.6792(2)0.0347(9)
H140.54200.76520.72800.042*
C150.4140(3)0.7013(3)0.65867(18)0.0294(8)
H150.35560.68410.69320.035*
C160.2389(3)0.6062(3)0.46734(16)0.0189(6)
C170.2626(3)0.5076(3)0.43386(17)0.0253(7)
H170.27700.44350.46150.030*
C180.2655(4)0.5019(3)0.36059(19)0.0296(8)
H180.28280.43420.33820.035*
C190.2431(3)0.5948(3)0.31973(17)0.0248(7)
H190.24450.59090.26940.030*
C200.2188(3)0.6930(3)0.35292(17)0.0233(7)
H200.20370.75670.32510.028*
C210.2163(3)0.6994(3)0.42593(17)0.0214(6)
H210.19920.76730.44810.026*
C220.2394(3)0.4838(3)0.59848(16)0.0197(6)
C230.1263(3)0.4352(3)0.61167(16)0.0230(7)
H230.05300.47630.60550.028*
C240.1214(3)0.3270(3)0.63378(17)0.0253(7)
H240.04470.29460.64310.030*
C250.2272(3)0.2661(3)0.64233(17)0.0247(7)
H250.22300.19160.65650.030*
C260.3399(3)0.3140(3)0.63007(17)0.0257(7)
H260.41280.27230.63630.031*
C270.3464(3)0.4223(3)0.60876(16)0.0228(7)
H270.42370.45490.60110.027*

Source of material

All chemicals and solvents were used as purchased without purification. The melting point of the compound was measured on a Mel-Temp II digital melting point apparatus and was uncorrected. The elemental analysis was performed on a Perkin-Elmer EA2400 CHN analyser. The IR spectrum was recorded using a Perkin-Elmer RX1 spectrophotometer as a Nujol mull in a KBr cell from 4000 to 400 cm−1.

Dimethyldi(4-tolyl)tin (2.0 g, 6 mmol) in dry dimethylformamide (30 mL) was prepared from the reaction of dimethyltin dichloride and 4-tolylmagnesium bromide in a 1:2 molar ratio. A chilled dimethylformamide solution (5 mL) of bromine (0.97 g, 6 mmol) was added dropwise into the solution followed by stirring at room temperature for 1 h. Triphenylphosphine oxide (Sigma-Aldrich, 1.67 g, 6 mmol) in chloroform (25 mL) was added into the mixture which was then refluxed for 1 h. After filtration, the filtrate was evaporated slowly until colourless crystals were formed. These were filtered, washed with a minimum amount of hexane and air-dried. Yield: 0.34 g (62%). M.pt: 398–400 K. Anal. Calc. for C27H28BrOPSn: C 54.23; H 4.69%. Found: C 54.70; H 5.08%. IR (cm−1) 1600 (m) ν(C—C), 1180 (m) ν(P—O), 1087 (s) ν(C—O), 1011 (m) ν(C—O), 485 (w) ν(Sn—O).

Experimental details

The C-bound H atoms were geometrically placed (C—H = 0.95–0.98 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C). Owing to poor agreement, two reflections, i.e. (−1 0 7) and (1 1 6), were omitted from the final cycles of refinement. The maximum and minimum residual electron density peaks of 1.03 and 0.79 eÅ−3, respectively, were located 0.99 and 0.89 Å from the Sn atom, respectively.

Comment

There are over 30 crystal structure determinations of phosphineoxide adducts of organotin species in the crystallographic literature [5]. Of these, there are only two examples of triorganotinbromido adducts with monofunctional phosphineoxides, namely Ph3SnBr⋅O=PPh3 [6] and (3-thienyl)3SnBr⋅O=PPh3 [7]. The crystal and molecular structures of the title compound, Me2(Ph)SnBr⋅O=PPh3 (I), a non-symmetric triorganotin compound, were determined as part of a wider, on-going study of related phosphineoxide [8] arsineoxide [9] and sulphoxide [10], [11] adducts of organotin derivatives.

The molecular structure of (I) is shown in the figure (70% displacement ellipsoids). The tin atom is penta-coordinated by a bromide atom [2.6725(4) Å], two methyl-carbons [Sn—C1 = 2.124(3) Å and Sn—C2 = 2.121(3) Å], the ipso-carbon atom of the 4-tolyl substituent [Sn—C3 = 2.120(3) Å] and the phosphineoxide-O1 atom [2.378(2) Å]. The tin-bound organo substituents occupy equatorial positions in a distorted trigonal-bipyramidal geometry, with the Sn atom lying 0.1854(19) Å out of the equatorial plane in the direction of the Br1 atom. The Br1—Sn—O1 axial angle is 178.54(6)°, and the Sn—O1—P1 angle is 157.10(15)°. Despite the difference between the tin-bound organo substituents, the angles subtended at the tin atom are close to the ideal value of 120°, i.e. 118.58(12)° for C1—Sn—C3 to 119.66(13)° for C2—Sn—C3. An intramolecular π⋯π interaction is noted as the C3-tolyl and phosphine-C10 ring are aligned and close to parallel. The inter-centroid separation is 3.699(2) Å and the angle of inclination is 9.79(16)°.

In the crystal, tolyl-C—H⋯π(phenyl) and phenyl-C—H⋯π(tolyl) [C8—H8⋯Cg(C22–C27)i: H8⋯Cg(C22–C27)i = 2.87 Å, C8⋯Cg(C22–C27)i = 3.690(3) Å with angle at H8 = 145° and C25—H25⋯Cg(C3–C8)ii: H25⋯Cg(C3–C8)ii = 2.86 Å, C25⋯Cg(C3–C8)ii = 3.658(4) Å with angle at H25 = 143° for symmetry operations (i) 1/2 – x, 1/2 + y, 3/2 – z and (ii) x, −1 + y, z] interactions lead to a helical supramolecular chain along the b axis direction. Weak phenyl-C—H⋯Br interactions [C20—H20⋯Br1iii: H20⋯Br1iii = 2.94 Å, C20⋯Br1iii = 3.693(4) Å with angle at H20 = 138° for (iii) −x, 2 − y, 1 − z] are noted. These connect the chains into a supramolecular layer parallel to (−1 0 1). Layers stack without directional interactions between them.

The Hirshfeld surfaces and the overall and delineated two-dimensional fingerprint plots for (I) was calculated using Crystal Explorer 17 [12] and literature procedures [13]. There are only three contributing contacts to the overall Hirshfeld surface of (I). In descending order these are H⋯H [65.2%], C⋯H/H⋯C [23.1%] and Br⋯H/H⋯Br [11.6%].

Acknowledgements

Sunway University Sdn Bhd is thanked for financial support of this work through Grant No. STR-RCTR-RCCM-001–2019.

References

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Received: 2019-08-01
Accepted: 2019-08-25
Published Online: 2019-09-14
Published in Print: 2019-12-18

©2019 See Mun Lee et al., published by De Gruyter, Berlin/Boston

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

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  62. Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
  63. The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
  64. Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
  65. Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
  66. Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
  67. Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
  68. The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
  69. The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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