metal-organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890

catena-Poly[tri­methyl­phenyl­ammonium [[bromidocad­mate(II)]-μ-bromido-μ-chlorido]]

aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my

(Received 10 February 2010; accepted 12 February 2010; online 17 February 2010)

In the title salt, (C9H14N)[CdBr2Cl], the CdII atom is five-coordinated in a trigonal-bipyramidal coordination environment. All three of the halogen sites show disorder as a result of substitution of Cl for Br or Br for Cl. Two of the three halogen atoms are involved in bridging a pair of CdII atoms, generating a linear polyanionic chain motif.

Related literature

For the crystal structure of bis­[4-(dimethyl­amino)pyridinium]tetra­bromidocadmate monohydrate, see: Lo & Ng (2009[Lo, K. M. & Ng, S. W. (2009). Acta Cryst. E65, m560.]).

[Scheme 1]

Experimental

Crystal data
  • (C9H14N)[CdBr2Cl]

  • Mr = 443.88

  • Monoclinic, C c

  • a = 12.9403 (2) Å

  • b = 14.7059 (2) Å

  • c = 7.3866 (1) Å

  • β = 95.1590 (8)°

  • V = 1399.97 (3) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 7.43 mm−1

  • T = 293 K

  • 0.30 × 0.25 × 0.20 mm

Data collection
  • Bruker SMART APEX diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.378, Tmax = 0.746

  • 6431 measured reflections

  • 3068 independent reflections

  • 2966 reflections with I > 2σ(I)

  • Rint = 0.026

Refinement
  • R[F2 > 2σ(F2)] = 0.027

  • wR(F2) = 0.070

  • S = 1.06

  • 3068 reflections

  • 124 parameters

  • 10 restraints

  • H-atom parameters constrained

  • Δρmax = 0.67 e Å−3

  • Δρmin = −0.68 e Å−3

  • Absolute structure: Flack (1983[Flack, H. D. (1983). Acta Cryst. A39, 876-881.]), 1451 Friedel pairs

  • Flack parameter: 0.021 (9)

Data collection: APEX2 (Bruker, 2009[Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2009[Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: X-SEED (Barbour, 2001[Barbour, L. J. (2001). J. Supramol. Chem. 1, 189-191.]); software used to prepare material for publication: publCIF (Westrip, 2010[Westrip, S. P. (2010). publCIF. In preparation.]).

Supporting information


Related literature top

For the crystal structure of bis[4-(dimethylamino)pyridinium]tetrabromidocadmate monohydrate, see: Lo & Ng (2009).

Experimental top

Cadmium chloride hemipentahydrate (0.45 g , 2 mmol) and trimethylphenylammonium tribromide (0.76 g, 2mmol) were heated in ethanol for 1 h. After filtering of the reaction mixture, colourless crystals were obtained upon slow evaporation of the yellow filtrate.

Refinement top

The aromatic ring was refined as a rigid hexagon (C—C = 1.39 Å). The N—Cmethyl distances were restrained to 1.50 (1) Å. H atoms were placed at calculated positions (C–H = 0.93–0.96 Å) and were treated as riding on their parent atoms, with U(H) set to 1.2–1.5 times Ueq(C).

Each of the three halogen sites are occupied by Cl or Br atoms. The total site occupancy of the Cl atoms refined to nearly 1 and that of Br atoms to nearly 2. Hence, the total site occupancy was fixed as 1.0 for Cl and 2.0 for Br atoms. The same Uij parameters were used for Br and Cl atoms occupying the same site.

Computing details top

Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top
[Figure 1] Fig. 1. Displacement ellipsoid plot (Barbour, 2001) of a portion of polymeric C9H14N+ [CdBr2Cl]- at the 50% probability level. H are drawn as spheres of arbitrary radius. The disorder in the halogen sites not shown.
catena-Poly[trimethylphenylammonium [[bromidocadmate(II)]µ-bromido-µ-chlorido]] top
Crystal data top
(C9H14N)[CdBr2Cl]F(000) = 840
Mr = 443.88Dx = 2.106 Mg m3
Monoclinic, CcMo Kα radiation, λ = 0.71073 Å
Hall symbol: C -2ycCell parameters from 5267 reflections
a = 12.9403 (2) Åθ = 2.7–28.3°
b = 14.7059 (2) ŵ = 7.43 mm1
c = 7.3866 (1) ÅT = 293 K
β = 95.1590 (8)°Block, colourless
V = 1399.97 (3) Å30.30 × 0.25 × 0.20 mm
Z = 4
Data collection top
Bruker SMART APEX
diffractometer
3068 independent reflections
Radiation source: fine-focus sealed tube2966 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.026
ω scansθmax = 27.5°, θmin = 2.1°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 1616
Tmin = 0.378, Tmax = 0.746k = 1919
6431 measured reflectionsl = 99
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.027H-atom parameters constrained
wR(F2) = 0.070 w = 1/[σ2(Fo2) + (0.0296P)2 + 0.0436P]
where P = (Fo2 + 2Fc2)/3
S = 1.06(Δ/σ)max = 0.001
3068 reflectionsΔρmax = 0.67 e Å3
124 parametersΔρmin = 0.68 e Å3
10 restraintsAbsolute structure: Flack (1983), 1451 Friedel pairs
Primary atom site location: structure-invariant direct methodsAbsolute structure parameter: 0.021 (9)
Crystal data top
(C9H14N)[CdBr2Cl]V = 1399.97 (3) Å3
Mr = 443.88Z = 4
Monoclinic, CcMo Kα radiation
a = 12.9403 (2) ŵ = 7.43 mm1
b = 14.7059 (2) ÅT = 293 K
c = 7.3866 (1) Å0.30 × 0.25 × 0.20 mm
β = 95.1590 (8)°
Data collection top
Bruker SMART APEX
diffractometer
3068 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
2966 reflections with I > 2σ(I)
Tmin = 0.378, Tmax = 0.746Rint = 0.026
6431 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.027H-atom parameters constrained
wR(F2) = 0.070Δρmax = 0.67 e Å3
S = 1.06Δρmin = 0.68 e Å3
3068 reflectionsAbsolute structure: Flack (1983), 1451 Friedel pairs
124 parametersAbsolute structure parameter: 0.021 (9)
10 restraints
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/UeqOcc. (<1)
Cd10.50000 (2)0.451513 (19)0.50000 (3)0.04131 (10)
Br10.63269 (6)0.51023 (6)0.29653 (9)0.04153 (19)0.302 (2)
Br20.36460 (4)0.55946 (3)0.61951 (6)0.04104 (14)0.861 (2)
Br30.48809 (5)0.28104 (3)0.54560 (8)0.05001 (16)0.837 (2)
Cl10.63269 (6)0.51023 (6)0.29653 (9)0.04153 (19)0.698 (2)
Cl20.36460 (4)0.55946 (3)0.61951 (6)0.04104 (14)0.139 (2)
Cl30.48809 (5)0.28104 (3)0.54560 (8)0.05001 (16)0.163 (2)
N10.6446 (3)0.8091 (3)0.5732 (4)0.0399 (8)
C10.5525 (2)0.8692 (2)0.5708 (5)0.0405 (9)
C20.4530 (3)0.8337 (2)0.5711 (6)0.0623 (14)
H20.44320.77100.57160.075*
C30.3682 (2)0.8917 (3)0.5705 (8)0.089 (2)
H30.30170.86790.57060.106*
C40.3830 (3)0.9854 (3)0.5696 (8)0.091 (3)
H40.32621.02420.56920.109*
C50.4825 (4)1.02091 (19)0.5694 (7)0.082 (2)
H50.49231.08350.56880.098*
C60.5673 (3)0.9628 (2)0.5700 (6)0.0594 (14)
H60.63390.98660.56980.071*
C70.6156 (6)0.7104 (3)0.5704 (10)0.0697 (16)
H7A0.57140.69750.46200.104*
H7B0.57960.69660.67510.104*
H7C0.67730.67400.57220.104*
C80.7023 (4)0.8299 (5)0.4097 (7)0.0624 (14)
H8A0.65950.81480.30090.094*
H8B0.76500.79460.41530.094*
H8C0.71930.89340.40860.094*
C90.7151 (4)0.8261 (5)0.7446 (7)0.0623 (15)
H9A0.74810.88430.73650.093*
H9B0.76700.77940.75830.093*
H9C0.67490.82550.84760.093*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.04678 (18)0.03161 (15)0.04784 (18)0.00106 (13)0.01690 (13)0.00100 (13)
Br10.0383 (4)0.0526 (5)0.0341 (3)0.0033 (3)0.0054 (3)0.0011 (3)
Br20.0381 (3)0.0426 (3)0.0431 (3)0.00585 (18)0.00755 (18)0.00786 (17)
Br30.0605 (3)0.0296 (2)0.0590 (3)0.0028 (2)0.0003 (2)0.00449 (19)
Cl10.0383 (4)0.0526 (5)0.0341 (3)0.0033 (3)0.0054 (3)0.0011 (3)
Cl20.0381 (3)0.0426 (3)0.0431 (3)0.00585 (18)0.00755 (18)0.00786 (17)
Cl30.0605 (3)0.0296 (2)0.0590 (3)0.0028 (2)0.0003 (2)0.00449 (19)
N10.0381 (19)0.042 (2)0.0400 (18)0.0041 (15)0.0046 (14)0.0012 (14)
C10.040 (2)0.040 (2)0.041 (2)0.0041 (17)0.0006 (17)0.0010 (16)
C20.047 (3)0.068 (4)0.072 (4)0.014 (3)0.005 (2)0.005 (3)
C30.046 (3)0.120 (7)0.098 (5)0.005 (4)0.001 (3)0.006 (5)
C40.084 (5)0.103 (6)0.082 (5)0.047 (5)0.013 (4)0.011 (4)
C50.091 (5)0.064 (4)0.089 (5)0.025 (4)0.003 (4)0.008 (4)
C60.065 (4)0.040 (3)0.071 (3)0.004 (2)0.004 (3)0.005 (2)
C70.082 (4)0.038 (3)0.090 (5)0.001 (3)0.007 (3)0.002 (3)
C80.046 (3)0.093 (5)0.050 (3)0.001 (3)0.017 (2)0.001 (3)
C90.051 (3)0.085 (4)0.048 (3)0.002 (3)0.008 (2)0.001 (3)
Geometric parameters (Å, º) top
Cd1—Br12.5332 (8)C3—H30.93
Cd1—Br32.5361 (6)C4—C51.39
Cd1—Br22.5782 (5)C4—H40.93
Cd1—Cl1i2.7178 (8)C5—C61.39
Cd1—Br1i2.7178 (8)C5—H50.93
Cd1—Br2ii3.1795 (5)C6—H60.93
Br1—Cd1ii2.7178 (8)C7—H7A0.96
N1—C11.483 (4)C7—H7B0.96
N1—C71.499 (6)C7—H7C0.96
N1—C81.507 (5)C8—H8A0.96
N1—C91.513 (5)C8—H8B0.96
C1—C21.39C8—H8C0.96
C1—C61.39C9—H9A0.96
C2—C31.39C9—H9B0.96
C2—H20.93C9—H9C0.96
C3—C41.39
Br1—Cd1—Br3117.92 (3)C4—C3—H3120.0
Br1—Cd1—Br2120.74 (3)C2—C3—H3120.0
Br3—Cd1—Br2120.79 (2)C3—C4—C5120.0
Br1—Cd1—Cl1i89.70 (2)C3—C4—H4120.0
Br3—Cd1—Cl1i98.00 (2)C5—C4—H4120.0
Br2—Cd1—Cl1i89.78 (2)C6—C5—C4120.0
Br1—Cd1—Br1i89.70 (2)C6—C5—H5120.0
Br3—Cd1—Br1i98.00 (2)C4—C5—H5120.0
Br2—Cd1—Br1i89.78 (2)C5—C6—C1120.0
Cl1i—Cd1—Br1i0.00 (4)C5—C6—H6120.0
Br1—Cd1—Br2ii80.904 (19)C1—C6—H6120.0
Br3—Cd1—Br2ii91.835 (17)N1—C7—H7A109.5
Br2—Cd1—Br2ii89.796 (16)N1—C7—H7B109.5
Cl1i—Cd1—Br2ii168.79 (2)H7A—C7—H7B109.5
Br1i—Cd1—Br2ii168.79 (2)N1—C7—H7C109.5
Cd1—Br1—Cd1ii97.81 (3)H7A—C7—H7C109.5
C1—N1—C7112.1 (4)H7B—C7—H7C109.5
C1—N1—C8109.0 (4)N1—C8—H8A109.5
C7—N1—C8109.1 (5)N1—C8—H8B109.5
C1—N1—C9109.5 (4)H8A—C8—H8B109.5
C7—N1—C9107.6 (4)N1—C8—H8C109.5
C8—N1—C9109.4 (4)H8A—C8—H8C109.5
C2—C1—C6120.0H8B—C8—H8C109.5
C2—C1—N1121.3 (3)N1—C9—H9A109.5
C6—C1—N1118.7 (3)N1—C9—H9B109.5
C3—C2—C1120.0H9A—C9—H9B109.5
C3—C2—H2120.0N1—C9—H9C109.5
C1—C2—H2120.0H9A—C9—H9C109.5
C4—C3—C2120.0H9B—C9—H9C109.5
Br3—Cd1—Br1—Cd1ii103.65 (3)C9—N1—C1—C2117.8 (4)
Br2—Cd1—Br1—Cd1ii67.89 (3)C7—N1—C1—C6179.0 (4)
Cl1i—Cd1—Br1—Cd1ii157.45 (4)C8—N1—C1—C658.1 (4)
Br1i—Cd1—Br1—Cd1ii157.45 (4)C9—N1—C1—C661.6 (4)
Br2ii—Cd1—Br1—Cd1ii16.407 (19)N1—C1—C2—C3179.4 (4)
C7—N1—C1—C21.6 (5)N1—C1—C6—C5179.5 (3)
C8—N1—C1—C2122.5 (4)
Symmetry codes: (i) x, y+1, z+1/2; (ii) x, y+1, z1/2.

Experimental details

Crystal data
Chemical formula(C9H14N)[CdBr2Cl]
Mr443.88
Crystal system, space groupMonoclinic, Cc
Temperature (K)293
a, b, c (Å)12.9403 (2), 14.7059 (2), 7.3866 (1)
β (°) 95.1590 (8)
V3)1399.97 (3)
Z4
Radiation typeMo Kα
µ (mm1)7.43
Crystal size (mm)0.30 × 0.25 × 0.20
Data collection
DiffractometerBruker SMART APEX
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.378, 0.746
No. of measured, independent and
observed [I > 2σ(I)] reflections
6431, 3068, 2966
Rint0.026
(sin θ/λ)max1)0.649
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.027, 0.070, 1.06
No. of reflections3068
No. of parameters124
No. of restraints10
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.67, 0.68
Absolute structureFlack (1983), 1451 Friedel pairs
Absolute structure parameter0.021 (9)

Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).

 

Acknowledgements

The authors thank the University of Malaya (RG020/09AFR) for supporting this study.

References

First citationBarbour, L. J. (2001). J. Supramol. Chem. 1, 189–191.  CrossRef CAS Google Scholar
First citationBruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationFlack, H. D. (1983). Acta Cryst. A39, 876–881.  CrossRef CAS Web of Science IUCr Journals Google Scholar
First citationLo, K. M. & Ng, S. W. (2009). Acta Cryst. E65, m560.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationSheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationWestrip, S. P. (2010). publCIF. In preparation.  Google Scholar

This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds