(IUCr) Bis(2-bromopyridinium) hexachloridostannate(IV)

Volume 64
Part 5
Pages m637-m638
May 2008

Received 6 March 2008
Accepted 3 April 2008
Online 10 April 2008

Key indicators
Single-crystal X-ray study
T = 296 K
Mean (C-C) = 0.009 Å
R = 0.040
wR = 0.098
Data-to-parameter ratio = 18.3
Details

Bis(2-bromopyridinium) hexachloridostannate(IV)

Basem Fares Ali,^a Rawhi Al-Far ^b ^* and Salim F. Haddad ^c

^aDepartment of Chemistry, Al al-Bayt University, Mafraq, Jordan,^bFaculty of Science and IT, Al-Balqa'a Applied University, Salt, Jordan, and ^cDepartment of Chemistry, The University of Jordan, Amman, Jordan
Correspondence e-mail: rohi@bau.edu.jo

The asymmetric unit of the title compound, (C₅H₅BrN)₂[SnCl₆], contains one cation and one half-anion. The [SnCl₆]^2- anion is located on an inversion center and forms a quasi-regular octahedral arrangement. Hydrogen-bonding interactions of two kinds, viz. N-HCl-Sn and C-HCl-Sn, along with ClBr interactions [3.4393 (15) Å], connect the ions in the crystal structure into two-dimensional supramolecular arrays. These supramolecular arrays are arranged in layers approximately parallel to (110) built up from anions interacting with six symmetry-related surrounding cations.

Related literature

The title salt is isomorphous with the Te-analogue, see: Fernandes et al. (2004). For related literature, see: Al-Far & Ali (2007); Ali, Al-Far & Al-Sou'od (2007); Ali & Al-Far (2007); Ali, Al-Far & Ng (2007); Allen et al. (1987); Aruta et al. (2005); Awwadi et al. (2007); Bouacida et al. (2007); Ellis & Macdonald (2006); Hill (1998); Kagan et al. (1999); Knutson et al. (2005); Li et al. (2005); Mitzi et al. (2001); Raptopoulou et al. (2002); Willett & Haddad (2000).

Experimental

Crystal data

(C₅H₅BrN)₂[SnCl₆]
M_r = 649.41
Monoclinic, P 2₁ /n
a = 9.0843 (14) Å
b = 10.6827 (9) Å
c = 10.6345 (17) Å
= 109.843 (11)°
V = 970.8 (2) Å³
Z = 2
Mo K radiation
= 6.25 mm^-1
T = 296 (2) K
0.20 × 0.15 × 0.10 mm

Data collection

Siemens P4 diffractometer
Absorption correction: scan (XSCANS; Siemens, 1996) T_min = 0.340, T_max = 0.535
2385 measured reflections
1791 independent reflections
1343 reflections with I > 2(I)
R_int = 0.048

Refinement

R[F² > 2(F²)] = 0.040
wR(F²) = 0.097
S = 1.05
1791 reflections
98 parameters
H-atom parameters constrained
_max = 0.61 e Å^-3
_min = -0.73 e Å^-3

Table 1
Selected geometric parameters (Å, °)

Sn1-Cl1	2.4216 (13)
Sn1-Cl2	2.4513 (14)
Sn1-Cl3	2.4212 (13)

Cl1-Sn1-Cl2	89.67 (5)
Cl3-Sn1-Cl1ⁱ	89.70 (5)
Cl3-Sn1-Cl1	90.30 (5)
Cl3-Sn1-Cl2	90.06 (6)
Cl3-Sn1-Cl2ⁱ	89.94 (6)
Symmetry code: (i) -x, -y, -z+1.

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
N1-H1Cl2ⁱⁱ	0.86	2.45	3.234 (5)	151
C3-H3Cl1ⁱⁱⁱ	0.93	2.77	3.646 (6)	158
C5-H5Cl1^iv	0.93	2.86	3.774 (7)	170
Symmetry codes: (ii) -x+1, -y, -z+2; (iii) -x+1, -y, -z+1; (iv) $[-x+{\script{3\over 2}}, y+{\script{1\over 2}}, -z+{\script{3\over 2}}]$ .

Data collection: XSCANS (Siemens, 1996); cell refinement: XSCANS; data reduction: SHELXTL (Sheldrick, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BH2165 ).

Acknowledgements

Al al-Bayt University and Al-Balqa'a Applied University are thanked for supporting this work

References

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Ali, B. F., Al-Far, R. & Al-Sou'od, K. (2007). J. Chem. Crystallogr. 37, 265-273.
Ali, B. F., Al-Far, R. & Ng, S. W. (2007). Acta Cryst. E63, m2102-m2103.
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metal-organic compounds