trans-Diiodidobis(2-phenyl­pyridine-κN)palladium(II)

Ha, K.

doi:10.1107/S1600536811055425

metal-organic compounds

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ISSN: 2056-9890

Volume 68| Part 2| February 2012| Page m102

doi:10.1107/S1600536811055425

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trans-Diiodidobis(2-phenylpyridine-κN)palladium(II)

Kwang Ha ^a ^*

^aSchool of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea
^*Correspondence e-mail: hakwang@chonnam.ac.kr

(Received 22 December 2011; accepted 23 December 2011; online 7 January 2012)

In the title complex, [PdI₂(C₁₁H₉N)₂], the Pd^II ion has a distorted trans-I₂N₂ square-planar coordination geometry defined by two N atoms from two 2-phenylpyridine ligands and two I⁻ anions. The 2-phenylpyridine ligands are not planar, the dihedral angles between the pyridine and benzene rings being 50.1 (2) and 45.7 (2)°. An intermolecular π–π interaction between the six-membered rings is present, the ring centroid–centroid distance being 3.898 (4) Å.

Related literature

For a related structure, [PdCl₂(C₁₁H₉N)₂], see: Ha (2011 ).

Experimental

Crystal data

[PdI₂(C₁₁H₉N)₂]
M_r = 670.58
Monoclinic, P 2₁ /c
a = 9.9163 (10) Å
b = 14.4759 (14) Å
c = 14.9917 (15) Å
β = 103.663 (2)°
V = 2091.1 (4) Å³
Z = 4
Mo Kα radiation
μ = 3.85 mm⁻¹
T = 200 K
0.25 × 0.23 × 0.11 mm

Data collection

Bruker SMART 1000 CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2000 ) T_min = 0.511, T_max = 0.655
15087 measured reflections
5163 independent reflections
2650 reflections with I > 2σ(I)
R_int = 0.061

Refinement

R[F² > 2σ(F²)] = 0.041
wR(F²) = 0.110
S = 0.98
5163 reflections
244 parameters
H-atom parameters constrained
Δρ_max = 2.20 e Å⁻³
Δρ_min = −1.15 e Å⁻³

Table 1
Selected bond lengths (Å)

Pd1—N1	2.027 (5)
Pd1—N2	2.031 (5)
Pd1—I1	2.6178 (8)
Pd1—I2	2.6244 (8)

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997 ) and PLATON (Spek, 2009 ); software used to prepare material for publication: SHELXL97.

Supporting information

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536811055425/is5038sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536811055425/is5038Isup2.hkl

checkCIF report

Comment top

The title complex, [PdI₂(C₁₁H₉N)₂], crystallized in the monoclinic space group P2₁/c, whereas the analogous chloro Pd^II complex [PdCl₂(C₁₁H₉N)₂] crystallized in the triclinic space group P1 (Ha, 2011).

The central Pd^II ion has a trans-I₂N₂ square-planar coordination geometry defined by two N atoms from two 2-phenylpyridine ligands and two I^- anions (Fig. 1). The Pd—N and Pd—I bond lengths are nearly equivalent, respectively (Table 1). In the crystal, the PdI₂N₂ unit is nearly planar: the maximum deviation from the least-squares plane is 0.002 (2) Å. The dihedral angles between the PdI₂N₂ moiety and the pyridine rings are 77.2 (2) and 76.8 (2)°. The 2-phenylpyridine ligands are not planar, the dihedral angles between the pyridine and benzene rings being 50.1 (2)° and 45.7 (2)°. An intermolecular π–π interaction between the six-membered rings is present, the ring centroid-centroid distance being 3.898 (4) Å (Fig. 2).

Related literature top

For a related structure, [PdCl₂(C₁₁H₉N)₂], see: Ha (2011).

Experimental top

To a solution of Na₂PdCl₄ (0.1494 g, 0.508 mmol) and KI (0.9225 g, 5.557 mmol) in MeOH (50 ml) was added 2-phenylpyridine (0.1828 g, 1.178 mmol) and stirred for 7 h at room temperature. After evaporation of the solvent, the residue was washed with H₂O and dried at 50 °C, to give a redbrown powder (0.3430 g). Crystals suitable for X-ray analysis were obtained by slow evaporation from a CH₃CN solution.

Computing details top

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).

Figures top

	Fig. 1. A view of the molecular structure of the title complex, with displacement ellipsoids drawn at the 40% probability level and the atom numbering.
	Fig. 2. A view of the unit-cell contents of the title complex.

trans-Diiodidobis(2-phenylpyridine-κN)palladium(II) top

Crystal data top

[PdI₂(C₁₁H₉N)₂]	F(000) = 1264
M_r = 670.58	D_x = 2.130 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 3071 reflections
a = 9.9163 (10) Å	θ = 2.5–27.7°
b = 14.4759 (14) Å	µ = 3.85 mm⁻¹
c = 14.9917 (15) Å	T = 200 K
β = 103.663 (2)°	Plate, red
V = 2091.1 (4) Å³	0.25 × 0.23 × 0.11 mm
Z = 4

Data collection top

Bruker SMART 1000 CCD diffractometer	5163 independent reflections
Radiation source: fine-focus sealed tube	2650 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.061
ϕ and ω scans	θ_max = 28.3°, θ_min = 2.0°
Absorption correction: multi-scan (SADABS; Bruker, 2000)	h = −12→13
T_min = 0.511, T_max = 0.655	k = −18→19
15087 measured reflections	l = −19→17

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.041	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.110	H-atom parameters constrained
S = 0.98	w = 1/[σ²(F_o²) + (0.0329P)²] where P = (F_o² + 2F_c²)/3
5163 reflections	(Δ/σ)_max < 0.001
244 parameters	Δρ_max = 2.20 e Å⁻³
0 restraints	Δρ_min = −1.15 e Å⁻³

Crystal data top

[PdI₂(C₁₁H₉N)₂]	V = 2091.1 (4) Å³
M_r = 670.58	Z = 4
Monoclinic, P2₁/c	Mo Kα radiation
a = 9.9163 (10) Å	µ = 3.85 mm⁻¹
b = 14.4759 (14) Å	T = 200 K
c = 14.9917 (15) Å	0.25 × 0.23 × 0.11 mm
β = 103.663 (2)°

Data collection top

Bruker SMART 1000 CCD diffractometer	5163 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2000)	2650 reflections with I > 2σ(I)
T_min = 0.511, T_max = 0.655	R_int = 0.061
15087 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.041	0 restraints
wR(F²) = 0.110	H-atom parameters constrained
S = 0.98	Δρ_max = 2.20 e Å⁻³
5163 reflections	Δρ_min = −1.15 e Å⁻³
244 parameters

Special details top

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 > σ(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
Pd1	0.75033 (5)	0.14770 (3)	0.24074 (3)	0.02261 (13)
I1	0.61261 (5)	0.14579 (3)	0.36973 (3)	0.03177 (14)
I2	0.88936 (5)	0.15018 (3)	0.11195 (3)	0.03134 (14)
N1	0.6117 (5)	0.0560 (3)	0.1689 (3)	0.0223 (12)
N2	0.8874 (6)	0.2392 (4)	0.3151 (4)	0.0294 (14)
C1	0.6530 (7)	−0.0331 (4)	0.1743 (4)	0.0282 (16)
H1	0.7465	−0.0464	0.2043	0.034*
C2	0.5691 (8)	−0.1047 (5)	0.1396 (5)	0.0365 (19)
H2	0.6031	−0.1663	0.1452	0.044*
C3	0.4332 (8)	−0.0863 (5)	0.0959 (5)	0.0339 (18)
H3	0.3708	−0.1349	0.0720	0.041*
C4	0.3903 (7)	0.0041 (5)	0.0877 (5)	0.0325 (18)
H4	0.2980	0.0181	0.0556	0.039*
C5	0.4787 (7)	0.0753 (4)	0.1254 (4)	0.0249 (16)
C6	0.4288 (7)	0.1721 (4)	0.1201 (4)	0.0252 (16)
C7	0.3044 (7)	0.1915 (5)	0.1446 (4)	0.0281 (16)
H7	0.2540	0.1430	0.1645	0.034*
C8	0.2542 (8)	0.2810 (5)	0.1401 (5)	0.0382 (19)
H8	0.1710	0.2940	0.1587	0.046*
C9	0.3244 (8)	0.3508 (5)	0.1090 (5)	0.0354 (18)
H9	0.2890	0.4120	0.1056	0.043*
C10	0.4459 (7)	0.3331 (5)	0.0824 (5)	0.0319 (18)
H10	0.4938	0.3821	0.0610	0.038*
C11	0.4991 (7)	0.2430 (5)	0.0868 (4)	0.0299 (17)
H11	0.5818	0.2303	0.0674	0.036*
C12	0.8459 (8)	0.3265 (5)	0.3126 (5)	0.0348 (19)
H12	0.7536	0.3406	0.2805	0.042*
C13	0.9289 (8)	0.3975 (5)	0.3540 (5)	0.043 (2)
H13	0.8956	0.4592	0.3496	0.052*
C14	1.0588 (8)	0.3775 (5)	0.4010 (5)	0.040 (2)
H14	1.1177	0.4255	0.4310	0.048*
C15	1.1072 (8)	0.2880 (5)	0.4060 (5)	0.042 (2)
H15	1.1990	0.2742	0.4393	0.051*
C16	1.0189 (8)	0.2168 (5)	0.3612 (5)	0.0321 (18)
C17	1.0712 (8)	0.1208 (5)	0.3653 (5)	0.0351 (19)
C18	1.2040 (8)	0.1041 (6)	0.3535 (5)	0.041 (2)
H18	1.2584	0.1540	0.3402	0.049*
C19	1.2577 (8)	0.0150 (5)	0.3609 (5)	0.044 (2)
H19	1.3474	0.0041	0.3508	0.053*
C20	1.1810 (9)	−0.0581 (6)	0.3831 (5)	0.049 (2)
H20	1.2183	−0.1189	0.3893	0.059*
C21	1.0499 (8)	−0.0414 (5)	0.3962 (5)	0.044 (2)
H21	0.9967	−0.0909	0.4116	0.053*
C22	0.9956 (8)	0.0471 (5)	0.3871 (5)	0.041 (2)
H22	0.9050	0.0576	0.3958	0.049*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Pd1	0.0173 (3)	0.0242 (3)	0.0258 (3)	−0.0034 (2)	0.0040 (2)	−0.0018 (2)
I1	0.0291 (3)	0.0354 (3)	0.0328 (3)	−0.0015 (2)	0.0115 (2)	−0.0018 (2)
I2	0.0253 (3)	0.0370 (3)	0.0331 (3)	−0.0029 (2)	0.0095 (2)	−0.0013 (2)
N1	0.017 (3)	0.027 (3)	0.021 (3)	−0.005 (2)	0.001 (2)	0.001 (2)
N2	0.026 (4)	0.031 (3)	0.029 (3)	−0.011 (3)	0.002 (3)	−0.001 (3)
C1	0.029 (4)	0.024 (4)	0.032 (4)	0.002 (3)	0.009 (3)	−0.003 (3)
C2	0.045 (5)	0.021 (4)	0.044 (5)	−0.001 (3)	0.011 (4)	−0.005 (3)
C3	0.030 (5)	0.038 (4)	0.032 (4)	−0.013 (4)	0.003 (3)	−0.002 (3)
C4	0.030 (5)	0.041 (5)	0.024 (4)	0.002 (4)	0.001 (3)	0.009 (3)
C5	0.031 (4)	0.025 (4)	0.016 (3)	−0.004 (3)	0.002 (3)	−0.002 (3)
C6	0.018 (4)	0.030 (4)	0.025 (4)	0.002 (3)	0.001 (3)	0.005 (3)
C7	0.026 (4)	0.036 (4)	0.026 (4)	−0.006 (3)	0.014 (3)	0.001 (3)
C8	0.023 (5)	0.046 (5)	0.046 (5)	0.012 (4)	0.010 (3)	0.003 (4)
C9	0.037 (5)	0.026 (4)	0.042 (4)	0.003 (4)	0.007 (3)	0.004 (4)
C10	0.030 (5)	0.034 (4)	0.034 (4)	−0.005 (3)	0.011 (3)	−0.001 (3)
C11	0.020 (4)	0.038 (4)	0.029 (4)	0.003 (3)	0.002 (3)	0.000 (3)
C12	0.046 (5)	0.024 (4)	0.035 (4)	−0.003 (3)	0.011 (4)	−0.002 (3)
C13	0.044 (6)	0.034 (5)	0.053 (5)	−0.010 (4)	0.014 (4)	−0.002 (4)
C14	0.039 (5)	0.036 (5)	0.043 (5)	−0.010 (4)	0.005 (4)	−0.018 (4)
C15	0.039 (5)	0.050 (5)	0.034 (4)	−0.012 (4)	−0.001 (4)	−0.002 (4)
C16	0.036 (5)	0.033 (4)	0.028 (4)	−0.010 (3)	0.010 (3)	0.006 (3)
C17	0.028 (5)	0.045 (5)	0.028 (4)	−0.003 (4)	0.000 (3)	0.002 (3)
C18	0.023 (5)	0.054 (5)	0.042 (5)	−0.005 (4)	0.000 (4)	0.005 (4)
C19	0.032 (5)	0.046 (5)	0.053 (5)	0.004 (4)	0.008 (4)	0.003 (4)
C20	0.047 (6)	0.047 (5)	0.047 (5)	0.008 (4)	−0.002 (4)	0.001 (4)
C21	0.036 (5)	0.036 (5)	0.059 (5)	−0.001 (4)	0.012 (4)	0.012 (4)
C22	0.024 (5)	0.050 (5)	0.044 (5)	−0.002 (4)	0.001 (3)	0.007 (4)

Geometric parameters (Å, º) top

Pd1—N1	2.027 (5)	C9—H9	0.9500
Pd1—N2	2.031 (5)	C10—C11	1.402 (9)
Pd1—I1	2.6178 (8)	C10—H10	0.9500
Pd1—I2	2.6244 (8)	C11—H11	0.9500
N1—C1	1.350 (8)	C12—C13	1.369 (9)
N1—C5	1.356 (8)	C12—H12	0.9500
N2—C12	1.328 (8)	C13—C14	1.346 (9)
N2—C16	1.363 (8)	C13—H13	0.9500
C1—C2	1.354 (9)	C14—C15	1.378 (10)
C1—H1	0.9500	C14—H14	0.9500
C2—C3	1.378 (9)	C15—C16	1.415 (9)
C2—H2	0.9500	C15—H15	0.9500
C3—C4	1.372 (9)	C16—C17	1.481 (10)
C3—H3	0.9500	C17—C22	1.386 (10)
C4—C5	1.384 (8)	C17—C18	1.390 (10)
C4—H4	0.9500	C18—C19	1.389 (10)
C5—C6	1.482 (9)	C18—H18	0.9500
C6—C11	1.397 (9)	C19—C20	1.389 (10)
C6—C7	1.397 (9)	C19—H19	0.9500
C7—C8	1.384 (9)	C20—C21	1.381 (11)
C7—H7	0.9500	C20—H20	0.9500
C8—C9	1.370 (10)	C21—C22	1.385 (10)
C8—H8	0.9500	C21—H21	0.9500
C9—C10	1.380 (10)	C22—H22	0.9500

N1—Pd1—N2	178.8 (2)	C9—C10—C11	120.2 (7)
N1—Pd1—I1	88.78 (15)	C9—C10—H10	119.9
N2—Pd1—I1	89.99 (17)	C11—C10—H10	119.9
N1—Pd1—I2	91.51 (15)	C6—C11—C10	119.1 (7)
N2—Pd1—I2	89.71 (17)	C6—C11—H11	120.5
I1—Pd1—I2	179.71 (3)	C10—C11—H11	120.5
C1—N1—C5	118.2 (5)	N2—C12—C13	123.6 (7)
C1—N1—Pd1	115.8 (4)	N2—C12—H12	118.2
C5—N1—Pd1	125.6 (4)	C13—C12—H12	118.2
C12—N2—C16	119.5 (6)	C14—C13—C12	118.3 (7)
C12—N2—Pd1	116.3 (5)	C14—C13—H13	120.8
C16—N2—Pd1	124.0 (5)	C12—C13—H13	120.8
N1—C1—C2	124.0 (6)	C13—C14—C15	120.6 (7)
N1—C1—H1	118.0	C13—C14—H14	119.7
C2—C1—H1	118.0	C15—C14—H14	119.7
C1—C2—C3	118.5 (7)	C14—C15—C16	119.3 (7)
C1—C2—H2	120.7	C14—C15—H15	120.3
C3—C2—H2	120.7	C16—C15—H15	120.3
C4—C3—C2	118.4 (6)	N2—C16—C15	118.6 (7)
C4—C3—H3	120.8	N2—C16—C17	121.9 (6)
C2—C3—H3	120.8	C15—C16—C17	119.5 (7)
C3—C4—C5	121.4 (6)	C22—C17—C18	118.6 (7)
C3—C4—H4	119.3	C22—C17—C16	121.9 (7)
C5—C4—H4	119.3	C18—C17—C16	119.4 (7)
N1—C5—C4	119.6 (6)	C19—C18—C17	120.5 (8)
N1—C5—C6	119.7 (5)	C19—C18—H18	119.8
C4—C5—C6	120.7 (6)	C17—C18—H18	119.8
C11—C6—C7	119.5 (6)	C20—C19—C18	120.3 (8)
C11—C6—C5	121.7 (7)	C20—C19—H19	119.8
C7—C6—C5	118.7 (6)	C18—C19—H19	119.8
C8—C7—C6	120.3 (7)	C21—C20—C19	119.2 (8)
C8—C7—H7	119.8	C21—C20—H20	120.4
C6—C7—H7	119.8	C19—C20—H20	120.4
C9—C8—C7	120.1 (7)	C20—C21—C22	120.4 (8)
C9—C8—H8	119.9	C20—C21—H21	119.8
C7—C8—H8	119.9	C22—C21—H21	119.8
C8—C9—C10	120.6 (7)	C21—C22—C17	121.0 (8)
C8—C9—H9	119.7	C21—C22—H22	119.5
C10—C9—H9	119.7	C17—C22—H22	119.5

I1—Pd1—N1—C1	−100.1 (5)	C8—C9—C10—C11	0.1 (11)
I2—Pd1—N1—C1	79.8 (5)	C7—C6—C11—C10	2.6 (9)
I1—Pd1—N1—C5	72.3 (5)	C5—C6—C11—C10	179.2 (6)
I2—Pd1—N1—C5	−107.7 (5)	C9—C10—C11—C6	−1.2 (10)
I1—Pd1—N2—C12	−78.3 (5)	C16—N2—C12—C13	0.5 (11)
I2—Pd1—N2—C12	101.7 (5)	Pd1—N2—C12—C13	−175.6 (6)
I1—Pd1—N2—C16	105.8 (6)	N2—C12—C13—C14	−1.2 (12)
I2—Pd1—N2—C16	−74.2 (6)	C12—C13—C14—C15	0.9 (12)
C5—N1—C1—C2	−0.7 (10)	C13—C14—C15—C16	0.0 (12)
Pd1—N1—C1—C2	172.3 (6)	C12—N2—C16—C15	0.5 (10)
N1—C1—C2—C3	0.1 (11)	Pd1—N2—C16—C15	176.3 (5)
C1—C2—C3—C4	1.5 (11)	C12—N2—C16—C17	−179.3 (7)
C2—C3—C4—C5	−2.6 (11)	Pd1—N2—C16—C17	−3.5 (10)
C1—N1—C5—C4	−0.3 (9)	C14—C15—C16—N2	−0.7 (11)
Pd1—N1—C5—C4	−172.6 (5)	C14—C15—C16—C17	179.1 (7)
C1—N1—C5—C6	178.5 (6)	N2—C16—C17—C22	−47.9 (10)
Pd1—N1—C5—C6	6.3 (9)	C15—C16—C17—C22	132.3 (8)
C3—C4—C5—N1	2.0 (11)	N2—C16—C17—C18	136.7 (7)
C3—C4—C5—C6	−176.9 (7)	C15—C16—C17—C18	−43.1 (10)
N1—C5—C6—C11	52.8 (9)	C22—C17—C18—C19	1.7 (11)
C4—C5—C6—C11	−128.4 (7)	C16—C17—C18—C19	177.3 (7)
N1—C5—C6—C7	−130.6 (7)	C17—C18—C19—C20	−2.0 (12)
C4—C5—C6—C7	48.2 (9)	C18—C19—C20—C21	1.1 (12)
C11—C6—C7—C8	−3.0 (10)	C19—C20—C21—C22	0.1 (12)
C5—C6—C7—C8	−179.7 (6)	C20—C21—C22—C17	−0.5 (12)
C6—C7—C8—C9	1.9 (11)	C18—C17—C22—C21	−0.5 (11)
C7—C8—C9—C10	−0.5 (11)	C16—C17—C22—C21	−175.9 (7)

Experimental details

Crystal data
Chemical formula	[PdI₂(C₁₁H₉N)₂]
M_r	670.58
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	200
a, b, c (Å)	9.9163 (10), 14.4759 (14), 14.9917 (15)
β (°)	103.663 (2)
V (Å³)	2091.1 (4)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	3.85
Crystal size (mm)	0.25 × 0.23 × 0.11

Data collection
Diffractometer	Bruker SMART 1000 CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2000)
T_min, T_max	0.511, 0.655
No. of measured, independent and observed [I > 2σ(I)] reflections	15087, 5163, 2650
R_int	0.061
(sin θ/λ)_max (Å⁻¹)	0.668

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.041, 0.110, 0.98
No. of reflections	5163
No. of parameters	244
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	2.20, −1.15

Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009).

Selected bond lengths (Å) top

Pd1—N1	2.027 (5)	Pd1—I1	2.6178 (8)
Pd1—N2	2.031 (5)	Pd1—I2	2.6244 (8)

Acknowledgements

This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010–0029626).

References

Bruker (2000). SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Ha, K. (2011). Z. Kristallogr. New Cryst. Struct. 226, 501–502. CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar