Bis[4-(dimethyl-amino)-pyridinium] dibromidodichloridodimethyl-stannate(IV).

The tin(IV) atom in the salt, (C(7)H(11)N(2))(2)[SnBr(2)(CH(3))(2)Cl(2)], lies on a center of inversion in a tetra-gonally compressed octa-hedron; the bromine atoms are disordered with the chlorine atoms, so that they appear to share the same site. The crystal structure is stabilized by N-H⋯Br hydrogen bonds.

Related literature

For the structure of bis­(4-dimethyl­amino­pyridinium) tetra­bromidodiphenyl­stannate(IV), see: Yap et al. (2008 ▶).

Experimental

Crystal data

(C7H11N2)2[SnBr2(CH3)2Cl2]

M = 625.83

Triclinic,

a = 7.3573 (3) Å

b = 8.7717 (3) Å

c = 9.6644 (4) Å

α = 97.183 (3)°

β = 107.990 (3)°

γ = 90.052 (2)°

V = 588.04 (4) Å3

Z = 1

Mo Kα radiation

μ = 4.72 mm−1

T = 100 (2) K

0.25 × 0.20 × 0.15 mm

Data collection

Bruker SMART APEX diffractometer

Absorption correction: multi-scan (SADABS;Sheldrick, 1996 ▶) T min = 0.385, T max = 0.538 (expected range = 0.353–0.493)

4965 measured reflections

2756 independent reflections

1656 reflections with I > 2σ(I)

R int = 0.045

Refinement

R[F 2 > 2σ(F 2)] = 0.046

wR(F 2) = 0.123

S = 1.04

2756 reflections

122 parameters

4 restraints

H-atom parameters constrained

Δρmax = 0.82 e Å−3

Δρmin = −1.14 e Å−3

Data collection: APEX2 (Bruker, 2007 ▶); cell refinement: SAINT (Bruker, 2007 ▶); data reduction: SAINT; 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, 2008 ▶).

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808013561/bt2709sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536808013561/bt2709Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

(C7H11N2)2[SnBr2(CH3)2Cl2]	Z = 1
Mr = 625.83	F000 = 306
Triclinic, P1	Dx = 1.767 Mg m−3
Hall symbol: -P 1	Mo Kα radiation λ = 0.71073 Å
a = 7.3573 (3) Å	Cell parameters from 1302 reflections
b = 8.7717 (3) Å	θ = 2.3–23.1º
c = 9.6644 (4) Å	µ = 4.72 mm−1
α = 97.183 (3)º	T = 100 (2) K
β = 107.990 (3)º	Prism, colorless
γ = 90.052 (2)º	0.25 × 0.20 × 0.15 mm
V = 588.04 (4) Å3

Bruker SMART APEX diffractometer	2756 independent reflections
Radiation source: fine-focus sealed tube	1656 reflections with I > 2σ(I)
Monochromator: graphite	Rint = 0.045
T = 100(2) K	θmax = 27.5º
ω scans	θmin = 2.3º
Absorption correction: Multi-scan(SADABS;Sheldrick, 1996)	h = −9→9
Tmin = 0.385, Tmax = 0.538	k = −11→11
4965 measured reflections	l = −10→12

Refinement on F2	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.046	H-atom parameters constrained
wR(F2) = 0.123	w = 1/[σ2(Fo2) + (0.051P)2] where P = (Fo2 + 2Fc2)/3
S = 1.04	(Δ/σ)max = 0.001
2756 reflections	Δρmax = 0.82 e Å−3
122 parameters	Δρmin = −1.14 e Å−3
4 restraints	Extinction correction: none
Primary atom site location: structure-invariant direct methods

	x	y	z	Uiso*/Ueq	Occ. (<1)
Sn1	0.5000	0.5000	0.5000	0.0414 (2)
Br1	0.50474 (16)	0.50403 (11)	0.77987 (11)	0.0610 (3)	0.4551 (15)
Br2	0.36593 (14)	0.78543 (10)	0.49452 (10)	0.0588 (3)	0.5449 (15)
Cl1	0.50474 (16)	0.50403 (11)	0.77987 (11)	0.0610 (3)	0.5449 (15)
Cl2	0.36593 (14)	0.78543 (10)	0.49452 (10)	0.0588 (3)	0.4551 (15)
N1	0.6576 (7)	0.1602 (6)	0.8588 (6)	0.0552 (14)
H1	0.6205	0.2248	0.7938	0.066*
N2	0.8414 (7)	−0.1391 (6)	1.1635 (6)	0.0557 (14)
C1	0.2014 (7)	0.4016 (6)	0.4157 (6)	0.0344 (12)
H1A	0.2023	0.2904	0.4192	0.052*
H1B	0.1432	0.4214	0.3142	0.052*
H1C	0.1271	0.4495	0.4767	0.052*
C2	0.6816 (9)	0.2092 (8)	1.0006 (8)	0.0581 (18)
H2	0.6571	0.3128	1.0290	0.070*
C3	0.7413 (9)	0.1116 (7)	1.1061 (7)	0.0545 (16)
H3	0.7570	0.1480	1.2060	0.065*
C4	0.7793 (8)	−0.0433 (7)	1.0650 (7)	0.0443 (15)
C5	0.7486 (8)	−0.0875 (7)	0.9140 (7)	0.0488 (15)
H5	0.7698	−0.1904	0.8805	0.059*
C6	0.6890 (9)	0.0144 (8)	0.8144 (7)	0.0536 (16)
H6	0.6698	−0.0183	0.7132	0.064*
C7	0.8687 (11)	−0.0920 (10)	1.3200 (8)	0.084 (3)
H7A	0.9886	−0.0305	1.3639	0.127*
H7B	0.8740	−0.1836	1.3695	0.127*
H7C	0.7616	−0.0305	1.3310	0.127*
C8	0.8809 (10)	−0.2972 (8)	1.1236 (9)	0.071 (2)
H8A	0.7602	−0.3560	1.0736	0.106*
H8B	0.9498	−0.3417	1.2124	0.106*
H8C	0.9594	−0.3008	1.0579	0.106*

	U11	U22	U33	U12	U13	U23
Sn1	0.0437 (4)	0.0408 (3)	0.0388 (4)	0.0028 (3)	0.0122 (3)	0.0040 (3)
Br1	0.0938 (9)	0.0501 (6)	0.0460 (6)	0.0082 (5)	0.0319 (6)	0.0062 (5)
Br2	0.0809 (7)	0.0458 (5)	0.0461 (6)	0.0187 (5)	0.0144 (5)	0.0062 (4)
Cl1	0.0938 (9)	0.0501 (6)	0.0460 (6)	0.0082 (5)	0.0319 (6)	0.0062 (5)
Cl2	0.0809 (7)	0.0458 (5)	0.0461 (6)	0.0187 (5)	0.0144 (5)	0.0062 (4)
N1	0.050 (3)	0.064 (4)	0.052 (4)	0.001 (3)	0.012 (3)	0.020 (3)
N2	0.048 (3)	0.070 (4)	0.050 (3)	0.004 (3)	0.012 (3)	0.017 (3)
C1	0.032 (3)	0.039 (3)	0.040 (3)	0.009 (2)	0.019 (3)	0.012 (3)
C2	0.050 (4)	0.058 (4)	0.064 (5)	0.007 (3)	0.016 (4)	0.004 (4)
C3	0.048 (4)	0.065 (4)	0.048 (4)	0.001 (3)	0.016 (3)	−0.006 (3)
C4	0.031 (3)	0.063 (4)	0.037 (3)	−0.005 (3)	0.008 (3)	0.009 (3)
C5	0.047 (4)	0.050 (3)	0.047 (4)	−0.003 (3)	0.013 (3)	0.002 (3)
C6	0.054 (4)	0.064 (4)	0.042 (4)	−0.013 (3)	0.016 (3)	0.001 (3)
C7	0.075 (5)	0.136 (7)	0.043 (4)	0.025 (5)	0.013 (4)	0.028 (5)
C8	0.071 (5)	0.063 (5)	0.079 (6)	0.002 (4)	0.016 (4)	0.026 (4)

Sn1—C1i	2.225 (5)	C1—H1C	0.9800
Sn1—C1	2.225 (5)	C2—C3	1.381 (8)
Sn1—Br1	2.690 (1)	C2—H2	0.9500
Sn1—Cl1i	2.690 (1)	C3—C4	1.420 (9)
Sn1—Br1i	2.690 (1)	C3—H3	0.9500
Sn1—Br2i	2.6926 (8)	C4—C5	1.409 (9)
Sn1—Br2	2.6926 (8)	C5—C6	1.369 (8)
Sn1—Cl2i	2.6926 (8)	C5—H5	0.9500
N1—C2	1.341 (9)	C6—H6	0.9500
N1—C6	1.341 (9)	C7—H7A	0.9800
N1—H1	0.8800	C7—H7B	0.9800
N2—C4	1.324 (7)	C7—H7C	0.9800
N2—C8	1.446 (9)	C8—H8A	0.9800
N2—C7	1.467 (9)	C8—H8B	0.9800
C1—H1A	0.9800	C8—H8C	0.9800
C1—H1B	0.9800
C1i—Sn1—C1	180.0	Sn1—C1—H1A	109.5
C1i—Sn1—Br1	88.38 (14)	Sn1—C1—H1B	109.5
C1—Sn1—Br1	91.62 (14)	H1A—C1—H1B	109.5
C1i—Sn1—Cl1i	91.62 (14)	Sn1—C1—H1C	109.5
C1—Sn1—Cl1i	88.38 (14)	H1A—C1—H1C	109.5
Br1—Sn1—Cl1i	180.0	H1B—C1—H1C	109.5
C1i—Sn1—Br1i	91.62 (14)	N1—C2—C3	121.1 (6)
C1—Sn1—Br1i	88.38 (14)	N1—C2—H2	119.5
Br1—Sn1—Br1i	180.0	C3—C2—H2	119.5
Cl1i—Sn1—Br1i	0.0	C2—C3—C4	120.0 (6)
C1i—Sn1—Br2i	89.83 (13)	C2—C3—H3	120.0
C1—Sn1—Br2i	90.17 (13)	C4—C3—H3	120.0
Br1—Sn1—Br2i	89.12 (3)	N2—C4—C5	122.5 (6)
Cl1i—Sn1—Br2i	90.88 (3)	N2—C4—C3	121.6 (6)
Br1i—Sn1—Br2i	90.88 (3)	C5—C4—C3	115.9 (6)
C1i—Sn1—Br2	90.17 (13)	C6—C5—C4	121.5 (6)
C1—Sn1—Br2	89.83 (13)	C6—C5—H5	119.2
Br1—Sn1—Br2	90.88 (3)	C4—C5—H5	119.2
Cl1i—Sn1—Br2	89.12 (3)	N1—C6—C5	120.4 (6)
Br1i—Sn1—Br2	89.12 (3)	N1—C6—H6	119.8
Br2i—Sn1—Br2	180.0	C5—C6—H6	119.8
C1i—Sn1—Cl2i	89.83 (13)	N2—C7—H7A	109.5
C1—Sn1—Cl2i	90.17 (13)	N2—C7—H7B	109.5
Br1—Sn1—Cl2i	89.12 (3)	H7A—C7—H7B	109.5
Cl1i—Sn1—Cl2i	90.88 (3)	N2—C7—H7C	109.5
Br1i—Sn1—Cl2i	90.88 (3)	H7A—C7—H7C	109.5
Br2i—Sn1—Cl2i	0.000 (13)	H7B—C7—H7C	109.5
Br2—Sn1—Cl2i	180.0	N2—C8—H8A	109.5
C2—N1—C6	121.1 (6)	N2—C8—H8B	109.5
C2—N1—H1	119.4	H8A—C8—H8B	109.5
C6—N1—H1	119.4	N2—C8—H8C	109.5
C4—N2—C8	122.3 (6)	H8A—C8—H8C	109.5
C4—N2—C7	121.8 (6)	H8B—C8—H8C	109.5
C8—N2—C7	115.9 (6)
C6—N1—C2—C3	0.6 (9)	C2—C3—C4—N2	178.3 (5)
N1—C2—C3—C4	0.3 (10)	C2—C3—C4—C5	−1.1 (8)
C8—N2—C4—C5	−0.6 (9)	N2—C4—C5—C6	−178.3 (6)
C7—N2—C4—C5	−178.7 (6)	C3—C4—C5—C6	1.1 (9)
C8—N2—C4—C3	−180.0 (5)	C2—N1—C6—C5	−0.7 (9)
C7—N2—C4—C3	1.9 (9)	C4—C5—C6—N1	−0.2 (9)

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1···Br1	0.88	2.60	3.316 (5)	139
N1—H1···Br2i	0.88	2.81	3.458 (6)	132

Table 1

Selected bond lengths (Å)

Sn1—C1	2.225 (5)
Sn1—X1	2.690 (1)
Sn1—X2	2.6926 (8)

X is a disordered mixture of Cl and Br.

Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯X1	0.88	2.60	3.316 (5)	139
N1—H1⋯X2i	0.88	2.81	3.458 (6)	132

X is a disordered mixture of Cl and Br. Symmetry code: (i) .