Bis(2,6-dimethyl­pyridinium) hexa­chlorido­platinate(IV)

Amani, V.; Rahimi, R.; Khavasi, H.R.

doi:10.1107/S1600536808025257

metal-organic compounds

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ISSN: 2056-9890

Volume 64| Part 9| September 2008| Pages m1143-m1144

doi:10.1107/S1600536808025257

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Bis(2,6-dimethylpyridinium) hexachloridoplatinate(IV)

Vahid Amani,^a Rahmatollah Rahimi ^b and Hamid Reza Khavasi ^a ^*

^aDepartment of Chemistry, Shahid Beheshti University, Tehran 1983963113, Iran, and ^bCollege of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
^*Correspondence e-mail: h-khavasi@sbu.ac.ir

(Received 3 August 2008; accepted 5 August 2008; online 9 August 2008)

The asymmetric unit of the title compound, (C₇H₁₀N)₂[PtCl₆], contains one independent protonated 2,6-dimethylpyridinium cation and half of a centrosymmetric [PtCl₆]²⁻ anion. The Pt atom has an octahedral coordination. In the crystal structure, intermolecular N—H⋯Cl and C—H⋯Cl hydrogen bonds result in the formation of a supramolecular structure. There is a π–π contact between the pyridine rings [centroid–centroid distance = 4.235 (1) Å].

Related literature

For related literature, see: Abedi et al. (2008 ); Bencini et al. (1992 ); Bokach et al. (2003 ); Bowmaker et al. (1998 ); Ciccarese et al. (1998 ); Delafontaine et al. (1987 ); Effendy et al. (2006 ); Hasan et al. (2001 ); Hojjat Kashani et al. (2008 ); Hu et al. (2003 ); Jin et al. (2000 , 2003 , 2006 ); Juan et al. (1998 ); Kansikas et al. (1994 ); Li & Liu (2003 ); Rafizadeh et al. (2006 ); Terzis & Mentzafos (1983 ); Yousefi, Amani & Khavasi (2007 ); Yousefi, Ahmadi et al. (2007 ); Yousefi et al. (2007a ,b ); Zordan & Brammer (2004 ); Zordan et al. (2005 ).

Experimental

Crystal data

(C₇H₁₀N)₂[PtCl₆]
M_r = 624.10
Monoclinic, P 2₁ /n
a = 9.9142 (12) Å
b = 9.6031 (10) Å
c = 11.3305 (14) Å
β = 107.117 (10)°
V = 1031.0 (2) Å³
Z = 2
Mo Kα radiation
μ = 7.58 mm⁻¹
T = 298 (2) K
0.48 × 0.45 × 0.38 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: numerical (X-SHAPE and X-RED; Stoe & Cie, 2005 )T_min = 0.41, T_max = 0.60
2756 measured reflections
2756 independent reflections
2387 reflections with I > 2σ(I)

Refinement

R[F² > 2σ(F²)] = 0.069
wR(F²) = 0.189
S = 1.10
2756 reflections
111 parameters
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 1.82 e Å⁻³
Δρ_min = −1.09 e Å⁻³

Table 1
Selected geometric parameters (Å, °)

Pt1—Cl2	2.3161 (16)
Pt1—Cl3	2.3239 (16)
Pt1—Cl1	2.3298 (14)

Cl2—Pt1—Cl1	90.25 (6)
Cl2ⁱ—Pt1—Cl1	89.75 (6)
Cl2—Pt1—Cl3ⁱ	90.20 (8)
Cl2—Pt1—Cl3	89.80 (8)
Cl3—Pt1—Cl1ⁱ	89.37 (6)
Cl3—Pt1—Cl1	90.63 (6)
Symmetry code: (i) -x, -y+1, -z.

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1D⋯Cl3ⁱⁱ	0.85 (8)	2.45 (8)	3.279 (6)	168 (7)
C1—H1B⋯Cl1ⁱⁱ	0.96	2.83	3.654 (11)	145
C4—H4⋯Cl2ⁱⁱⁱ	0.93	2.71	3.616 (11)	165
Symmetry codes: (ii) $[x+{\script{1\over 2}}, -y+{\script{3\over 2}}, z+{\script{1\over 2}}]$ ; (iii) $[x+{\script{1\over 2}}, -y+{\script{3\over 2}}, z-{\script{1\over 2}}]$ .

Data collection: SMART (Bruker, 1998 ); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ); program(s) used to refine structure: SHELXTL; molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ); software used to prepare material for publication: WinGX (Farrugia, 1999 ).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808025257/hk2508sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536808025257/hk2508Isup2.hkl

checkCIF report

Comment top

In recent years, there has been considerable interest in proton transfer systems and their structures (Rafizadeh et al., 2006; Yousefi, Amani & Khavasi, 2007; Abedi et al., 2008; Hojjat Kashani et al., 2008). Several proton transfer systems using 2,6-dimethylpyridine, with proton donor molecules, such as [2,6-dmpy.H](NO₃), (II), (Jin et al., 2003), [2,6-dmpy.H]₂[CoCl₄], (III), (Kansikas et al., 1994), [2,6-dmpy.H]Cl, (IV), (Effendy et al., 2006), [2,6-dmpy.H]₃[BiBr₆], (V), (Bowmaker et al., 1998), [2,6-dmpy.H]₂- [O₃CrOCrO₃], (VI), (Jin et al., 2006) and [2,6-dmpy.H][Ph(COOH)(COO)], (VII), (Jin et al., 2000) [2,6-dmpy.H is 2,6-dimethylpyridinium] have been synthesized and characterized by single-crystal X-ray diffraction methods.

There are also several proton transfer systems using H₂[PtCl₆] with proton acceptor molecules, such as [HpyBr-3]₂[PtCl₆].2H₂O, (XIII), and [HpyI-3]₂[PtCl₆].2H₂O, (IX),(Zordan & Brammer, 2004), [BMIM]₂[PtCl₆], (X), and [EMIM]₂[PtCl₆], (XI), (Hasan et al., 2001), {(DABCO)H₂[PtCl₆]}, (XII), (Juan et al., 1998), {p-C₆H₄(CH₂ImMe)₂[PtCl₆]}, (XIII), (Li & Liu, 2003), [het][PtCl₆].2H₂O, (XIV), (Hu et al., 2003), [9-MeGuaH]₂[PtCl₆].2H₂O, (XV), (Terzis & Mentzafos, 1983), [H₁₀[30]aneN₁₀][PtCl₆]₂Cl₆.2H₂O, (XVI), (Bencini et al., 1992), [H₂Me₂ppz][PtCl₆], (XVII), (Ciccarese et al., 1998), [PA]₂[PtCl₆]Cl, (XVIII), (Delafontaine et al., 1987), [DEA]₂[PtCl₆], (XIX), (Bokach et al., 2003), [HpyCl-3]₃[PtCl₆]Cl, (XX), (Zordan et al., 2005), [2,9-dmphen.H]₂- [PtCl₆], (XXI), (Yousefi, Ahmadi et al., 2007), [H₂DA18C6][PtCl₆].2H₂O, (XXII), (Yousefi et al., 2007a) and [TBA]₃[PtCl₆]Cl, (XXIII), (Yousefi et al., 2007b) [where hpy is halo- pyridinium, BMIM⁺ is 1-n-butyl-3-methylimidazolium, EMIM⁺ is 1-ethyl-3-methylimidazolium, DABCO is 1,4-diazabicyclooctane, Im is imidazolium, het is 2-(α-hydroxyethyl) thiamine, 9-MeGuaH is 9-methylguaninium, [H₁₀[30]aneN₁₀] is [C₂₀H₆₀N₁₀]¹⁰⁺ cation, H₂Me₂ppz is N,N'-dimethylpiperazinium, PA is pentane-1,5- diammonium, DEA is diethyl-ammonium, 2,9-dmphen.H is 2,9-dimethyl-1,10 -phenanthrolinium, H₂DA18C6 is 1,10-Diazonia-18-crown-6 and TBA is tribenzylammonium] have been synthesized and characterized by single-crystal X-ray diffraction methods. We report herein the synthesis and crystal structure of the title compound, (I).

The asymmetric unit of (I), (Fig. 1) contains one independent protonated 2,6-di- methylpyridinium cation and half of a centrosymmetric [PtCl₆]^2- anion. The Pt ion has an octahedral coordination. In cation, the bond lengths and angles are in good agreement with the corresponding values in (II) and (IV). In [PtCl₆]^2- anion, the Pt-Cl bond lengths and Cl-Pt-Cl bond angles (Table 1) are also within normal ranges, as in (XXI), (XXII) and (XXIII).

In the crystal structure (Fig. 2), intermolecular N-H···Cl and C-H···Cl hydrogen bonds (Table 2) result in the formation of a supramolecular structure, in which they may be effective in the stabilization of the structure. A π—π contact between A (N1/C2-C6) rings Cg1···Cg1ⁱ [symmetry code: (i) -x, 1 - y, 1 - z, where Cg1 is centroid of the ring A (N1/C2-C6)] further stabilize the structure, with centroid-centroid distance of 4.235 (1) Å.

Related literature top

For related literature, see: Abedi et al. (2008); Bencini et al. (1992); Bokach et al. (2003); Bowmaker et al. (1998); Ciccarese et al. (1998); Delafontaine et al. (1987); Effendy et al. (2006); Hasan et al. (2001); Hojjat Kashani et al. (2008); Hu et al. (2003); Jin et al. (2000, 2003, 2006); Juan et al. (1998); Kansikas et al. (1994); Li & Liu (2003); Rafizadeh et al. (2006); Terzis & Mentzafos (1983); Yousefi, Amani & Khavasi (2007); Yousefi, Ahmadi et al. (2007); Yousefi et al. (2007a,b); Zordan & Brammer (2004); Zordan et al. (2005).

Experimental top

For the preparation of the title compound, a solution of 2,6-dimethylpyridine (0.16 g, 1.48 mmol, 0.17 ml) in methanol (15 ml) was added to a solution of H₂PtCl₆.6H₂O, (0.38 g, 0.74 mmol) in acetonitrile (15 ml) and the resulting yellow solution was stirred for 10 min at 313 K. Then, it was left to evaporate slowly at room temperature. After one week, orange prismatic crystals of were isolated (yield; 0.34 g; 73.6%).

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

Figures top

	Fig. 1. The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 40% probability level [symmetry code: (a) -x, 1 - y, -z].
	Fig. 2. A packing diagram of (I). Hydrogen bonds are shown as dashed lines.

Bis(2,6-dimethylpyridinium) hexachloridoplatinate(IV) top

Crystal data top

(C₇H₁₀N)₂[PtCl₆]	F(000) = 596
M_r = 624.10	D_x = 2.010 Mg m⁻³
Monoclinic, P2₁/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 1071 reflections
a = 9.9142 (12) Å	θ = 2.4–29.1°
b = 9.6031 (10) Å	µ = 7.58 mm⁻¹
c = 11.3305 (14) Å	T = 298 K
β = 107.117 (10)°	Prism, orange
V = 1031.0 (2) Å³	0.48 × 0.45 × 0.38 mm
Z = 2

Data collection top

Bruker SMART CCD area-detector diffractometer	2756 independent reflections
Radiation source: fine-focus sealed tube	2387 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.094
ϕ and ω scans	θ_max = 29.1°, θ_min = 2.4°
Absorption correction: numerical (X-SHAPE and X-RED; Stoe & Cie, 2005)	h = −13→13
T_min = 0.41, T_max = 0.60	k = −12→13
2756 measured reflections	l = −15→15

Refinement top

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)] = 0.069	H atoms treated by a mixture of independent and constrained refinement
wR(F²) = 0.189	w = 1/[σ²(F_o²) + (0.1499P)² + 0.5352P] where P = (F_o² + 2F_c²)/3
S = 1.10	(Δ/σ)_max = 0.019
2756 reflections	Δρ_max = 1.82 e Å⁻³
111 parameters	Δρ_min = −1.09 e Å⁻³
0 restraints	Extinction correction: SHELXTL (Sheldrick, 2008), Fc^*=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4
Primary atom site location: structure-invariant direct methods	Extinction coefficient: 0.029 (3)

Crystal data top

(C₇H₁₀N)₂[PtCl₆]	V = 1031.0 (2) Å³
M_r = 624.10	Z = 2
Monoclinic, P2₁/n	Mo Kα radiation
a = 9.9142 (12) Å	µ = 7.58 mm⁻¹
b = 9.6031 (10) Å	T = 298 K
c = 11.3305 (14) Å	0.48 × 0.45 × 0.38 mm
β = 107.117 (10)°

Data collection top

Bruker SMART CCD area-detector diffractometer	2756 independent reflections
Absorption correction: numerical (X-SHAPE and X-RED; Stoe & Cie, 2005)	2387 reflections with I > 2σ(I)
T_min = 0.41, T_max = 0.60	R_int = 0.094
2756 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.069	0 restraints
wR(F²) = 0.189	H atoms treated by a mixture of independent and constrained refinement
S = 1.10	Δρ_max = 1.82 e Å⁻³
2756 reflections	Δρ_min = −1.09 e Å⁻³
111 parameters

Special details top

Experimental. shape of crystal determined optically (X-SHAPE and X-RED; Stoe & Cie, 2005)

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

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

	x	y	z	U_iso*/U_eq
Pt1	0.0000	0.5000	0.0000	0.0265 (2)
Cl1	0.14887 (17)	0.56949 (18)	−0.11435 (15)	0.0411 (4)
Cl2	0.0667 (2)	0.6927 (2)	0.12679 (17)	0.0504 (5)
Cl3	−0.18455 (17)	0.6275 (2)	−0.12863 (15)	0.0486 (5)
N1	0.3768 (6)	0.8089 (7)	0.1075 (5)	0.0409 (12)
H1D	0.348 (8)	0.822 (8)	0.170 (7)	0.029 (17)*
C1	0.5069 (11)	0.6118 (11)	0.2190 (9)	0.069 (2)
H1A	0.4229	0.5663	0.2249	0.082*
H1B	0.5475	0.6653	0.2924	0.082*
H1C	0.5735	0.5431	0.2100	0.082*
C2	0.4710 (8)	0.7054 (9)	0.1103 (8)	0.0503 (18)
C3	0.5217 (11)	0.6928 (17)	0.0112 (9)	0.062 (3)
H3	0.5875	0.6241	0.0104	0.074*
C4	0.4756 (12)	0.7819 (14)	−0.0875 (10)	0.076 (3)
H4	0.5090	0.7727	−0.1557	0.091*
C5	0.3790 (11)	0.8854 (11)	−0.0849 (7)	0.064 (3)
H5	0.3482	0.9462	−0.1513	0.077*
C6	0.3278 (8)	0.8987 (8)	0.0163 (7)	0.0472 (16)
C7	0.224 (2)	1.0036 (8)	0.033 (2)	0.071 (5)
H7A	0.1375	0.9938	−0.0325	0.085*
H7B	0.2617	1.0955	0.0302	0.085*
H7C	0.2072	0.9892	0.1109	0.085*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1	0.057 (5)	0.061 (5)	0.073 (6)	0.009 (4)	−0.003 (4)	−0.008 (4)
C2	0.034 (3)	0.053 (4)	0.060 (4)	−0.009 (3)	0.009 (3)	−0.022 (3)
C3	0.046 (4)	0.071 (7)	0.076 (7)	−0.015 (5)	0.028 (4)	−0.031 (5)
C4	0.069 (6)	0.111 (9)	0.061 (5)	−0.038 (6)	0.041 (5)	−0.029 (6)
C5	0.067 (5)	0.086 (6)	0.036 (3)	−0.035 (5)	0.011 (4)	0.001 (4)
C6	0.040 (3)	0.051 (4)	0.044 (3)	−0.013 (3)	0.003 (3)	0.001 (3)
C7	0.060 (10)	0.054 (8)	0.092 (15)	−0.002 (3)	0.011 (10)	0.016 (4)
N1	0.039 (3)	0.053 (3)	0.034 (2)	−0.005 (2)	0.016 (2)	−0.007 (2)
Pt1	0.0244 (3)	0.0322 (3)	0.0223 (3)	−0.00137 (8)	0.00597 (18)	0.00008 (7)
Cl1	0.0382 (8)	0.0514 (9)	0.0389 (8)	−0.0048 (6)	0.0196 (6)	0.0033 (6)
Cl2	0.0563 (10)	0.0491 (9)	0.0502 (9)	−0.0189 (7)	0.0224 (8)	−0.0207 (7)
Cl3	0.0365 (8)	0.0688 (11)	0.0390 (8)	0.0165 (7)	0.0087 (6)	0.0169 (7)

Geometric parameters (Å, º) top

Pt1—Cl2	2.3161 (16)	C2—C3	1.365 (11)
Pt1—Cl2ⁱ	2.3161 (16)	C3—C4	1.374 (19)
Pt1—Cl3ⁱ	2.3239 (16)	C3—H3	0.9300
Pt1—Cl3	2.3239 (16)	C4—C5	1.387 (18)
Pt1—Cl1ⁱ	2.3298 (14)	C4—H4	0.9300
Pt1—Cl1	2.3298 (14)	C5—C6	1.390 (12)
N1—H1D	0.85 (7)	C5—H5	0.9300
C1—C2	1.480 (14)	C6—N1	1.323 (10)
C1—H1A	0.9600	C6—C7	1.49 (2)
C1—H1B	0.9600	C7—H7A	0.9600
C1—H1C	0.9600	C7—H7B	0.9600
C2—N1	1.357 (10)	C7—H7C	0.9600

Cl1ⁱ—Pt1—Cl1	180.00 (8)	H1B—C1—H1C	109.5
Cl2—Pt1—Cl1ⁱ	89.75 (6)	N1—C2—C3	117.6 (10)
Cl2ⁱ—Pt1—Cl1ⁱ	90.25 (6)	N1—C2—C1	117.4 (8)
Cl2—Pt1—Cl1	90.25 (6)	C3—C2—C1	125.0 (10)
Cl2ⁱ—Pt1—Cl1	89.75 (6)	C2—C3—C4	120.0 (12)
Cl2—Pt1—Cl2ⁱ	180.00 (6)	C2—C3—H3	120.0
Cl2—Pt1—Cl3ⁱ	90.20 (8)	C4—C3—H3	120.0
Cl2ⁱ—Pt1—Cl3ⁱ	89.80 (8)	C3—C4—C5	119.7 (9)
Cl2—Pt1—Cl3	89.80 (8)	C3—C4—H4	120.2
Cl2ⁱ—Pt1—Cl3	90.20 (8)	C5—C4—H4	120.2
Cl3ⁱ—Pt1—Cl1ⁱ	90.63 (6)	C4—C5—C6	120.4 (9)
Cl3—Pt1—Cl1ⁱ	89.37 (6)	C4—C5—H5	119.8
Cl3ⁱ—Pt1—Cl3	180.0	C6—C5—H5	119.8
Cl3ⁱ—Pt1—Cl1	89.37 (6)	N1—C6—C5	116.4 (8)
Cl3—Pt1—Cl1	90.63 (6)	N1—C6—C7	116.9 (11)
C6—N1—C2	126.0 (7)	C5—C6—C7	126.7 (12)
C6—N1—H1D	115 (5)	C6—C7—H7A	109.5
C2—N1—H1D	119 (5)	C6—C7—H7B	109.5
C2—C1—H1A	109.5	H7A—C7—H7B	109.5
C2—C1—H1B	109.5	C6—C7—H7C	109.5
H1A—C1—H1B	109.5	H7A—C7—H7C	109.5
C2—C1—H1C	109.5	H7B—C7—H7C	109.5
H1A—C1—H1C	109.5

N1—C2—C3—C4	−1.0 (14)	C4—C5—C6—C7	−179.9 (12)
C1—C2—C3—C4	176.8 (10)	C5—C6—N1—C2	−0.5 (11)
C2—C3—C4—C5	0.9 (15)	C7—C6—N1—C2	179.7 (10)
C3—C4—C5—C6	−0.5 (14)	C3—C2—N1—C6	0.8 (11)
C4—C5—C6—N1	0.3 (11)	C1—C2—N1—C6	−177.1 (7)

Symmetry code: (i) −x, −y+1, −z.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1D···Cl3ⁱⁱ	0.85 (8)	2.45 (8)	3.279 (6)	168 (7)
C1—H1B···Cl1ⁱⁱ	0.96	2.83	3.654 (11)	145
C4—H4···Cl2ⁱⁱⁱ	0.93	2.71	3.616 (11)	165

Symmetry codes: (ii) x+1/2, −y+3/2, z+1/2; (iii) x+1/2, −y+3/2, z−1/2.

Experimental details

Crystal data
Chemical formula	(C₇H₁₀N)₂[PtCl₆]
M_r	624.10
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	298
a, b, c (Å)	9.9142 (12), 9.6031 (10), 11.3305 (14)
β (°)	107.117 (10)
V (Å³)	1031.0 (2)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	7.58
Crystal size (mm)	0.48 × 0.45 × 0.38

Data collection
Diffractometer	Bruker SMART CCD area-detector diffractometer
Absorption correction	Numerical (X-SHAPE and X-RED; Stoe & Cie, 2005)
T_min, T_max	0.41, 0.60
No. of measured, independent and observed [I > 2σ(I)] reflections	2756, 2756, 2387
R_int	0.094
(sin θ/λ)_max (Å⁻¹)	0.685

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.069, 0.189, 1.10
No. of reflections	2756
No. of parameters	111
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	1.82, −1.09

Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXTL (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).

Selected geometric parameters (Å, º) top

Pt1—Cl2	2.3161 (16)	Pt1—Cl1	2.3298 (14)
Pt1—Cl3	2.3239 (16)

Cl2—Pt1—Cl1	90.25 (6)	Cl2—Pt1—Cl3	89.80 (8)
Cl2ⁱ—Pt1—Cl1	89.75 (6)	Cl3—Pt1—Cl1ⁱ	89.37 (6)
Cl2—Pt1—Cl3ⁱ	90.20 (8)	Cl3—Pt1—Cl1	90.63 (6)

Symmetry code: (i) −x, −y+1, −z.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1D···Cl3ⁱⁱ	0.85 (8)	2.45 (8)	3.279 (6)	168 (7)
C1—H1B···Cl1ⁱⁱ	0.9600	2.8300	3.654 (11)	145.00
C4—H4···Cl2ⁱⁱⁱ	0.9300	2.7100	3.616 (11)	165.00

Symmetry codes: (ii) x+1/2, −y+3/2, z+1/2; (iii) x+1/2, −y+3/2, z−1/2.

Acknowledgements

We are grateful to Shahid Beheshti University for financial support.

References

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