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metal-organic compounds
Bis((E)-2-{3-[4-(1H-imidazol-1-yl-κN3)styryl]-5,5-dimethylcyclohex-2-enylidene}malononitrile)diiodidomercury(II)
aDepartment of Chemistry, Anhui University, Hefei 230039, People's Republic of China, and bKey Laboratory of Functional Inorganic Materials, Chemistry, Hefei 230039, People's Republic of China
*Correspondence e-mail: zhpzhp@263.net
In the title compound, [HgI2(C22H20N4)2], the HgII cation is situated on a twofold rotation axis and is coordinated by two iodide anions and two imidazolyl N atoms in a distorted tetrahedral geometry. In the crystal, C—H⋯I interactions link the molecules into chains extending in [010], which are further linked into sheets parallel to (100) through C—H⋯N hydrogen bonding interactions.
CCDC reference: 957793
Related literature
For the et al. (2013). For mercury(II) complexes in which the Hg(II) cation is four-coordinated by two terminal iodide ions and two N atoms from organic ligands in a distorted tetrahedral geometry, see: Li (2011
); Shirvan et al. (2012
).
Experimental
Crystal data
|
|
Data collection: SMART (Bruker, 2002); cell SAINT (Bruker, 2002
); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: SHELXTL (Sheldrick, 2008
); software used to prepare material for publication: SHELXTL.
Supporting information
CCDC reference: 957793
10.1107/S1600536813025191/cq2006sup1.cif
contains datablocks I, Global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813025191/cq2006Isup2.hkl
For the preparation of the title compound, a solution of HgI2 (0.1 g, 0.22 mmol) in methanol (10 mL) was carefully layered on top of the surface of the solution of (E)-2-(3-(4-(1H-imidazol-1-yl)styryl)-5,5-dimethylcyclohex-2- enylidene) malononitrile (0.15 g, 0.44 mmol) in chloroform (10 mL). Crystals were obtained after a week at about 298 K (yield 0.16 g, 64.0%).
All hydrogen atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H = 0.93 Å and Uiso(H) = 1.2 Ueq.
Data collection: SMART (Bruker, 2002); cell
SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[HgI2(C22H20N4)2] | Z = 2 |
Mr = 1135.23 | F(000) = 1092 |
Monoclinic, P2/c | Dx = 1.707 Mg m−3 |
Hall symbol: -P 2yc | Mo Kα radiation, λ = 0.71069 Å |
a = 18.768 (3) Å | µ = 4.92 mm−1 |
b = 6.4890 (9) Å | T = 298 K |
c = 18.681 (3) Å | Block, red |
β = 103.896 (10)° | 0.30 × 0.20 × 0.20 mm |
V = 2208.5 (5) Å3 |
Bruker SMART APEX CCD diffractometer | 3889 independent reflections |
Radiation source: fine-focus sealed tube | 3647 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
phi and ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | h = −21→22 |
Tmin = 0.320, Tmax = 0.439 | k = −7→7 |
14665 measured reflections | l = −22→22 |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0496P)2 + 4.7641P] where P = (Fo2 + 2Fc2)/3 |
3889 reflections | (Δ/σ)max = 0.001 |
251 parameters | Δρmax = 2.28 e Å−3 |
0 restraints | Δρmin = −1.86 e Å−3 |
[HgI2(C22H20N4)2] | V = 2208.5 (5) Å3 |
Mr = 1135.23 | Z = 2 |
Monoclinic, P2/c | Mo Kα radiation |
a = 18.768 (3) Å | µ = 4.92 mm−1 |
b = 6.4890 (9) Å | T = 298 K |
c = 18.681 (3) Å | 0.30 × 0.20 × 0.20 mm |
β = 103.896 (10)° |
Bruker SMART APEX CCD diffractometer | 3889 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | 3647 reflections with I > 2σ(I) |
Tmin = 0.320, Tmax = 0.439 | Rint = 0.042 |
14665 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.04 | Δρmax = 2.28 e Å−3 |
3889 reflections | Δρmin = −1.86 e Å−3 |
251 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Hg1 | 0.5000 | −0.05717 (4) | 0.7500 | 0.04225 (11) | |
I1 | 0.40548 (2) | −0.27343 (6) | 0.811929 (18) | 0.05948 (14) | |
N1 | 0.0943 (6) | 2.1499 (14) | 0.1997 (5) | 0.136 (4) | |
N2 | 0.2337 (6) | 1.6553 (14) | 0.1582 (5) | 0.125 (3) | |
N3 | 0.4072 (2) | 0.4228 (6) | 0.5797 (2) | 0.0361 (8) | |
N4 | 0.4591 (2) | 0.1711 (6) | 0.6528 (2) | 0.0393 (9) | |
C1 | 0.2004 (5) | 1.7214 (12) | 0.1961 (4) | 0.083 (2) | |
C2 | 0.1228 (5) | 1.9987 (13) | 0.2193 (5) | 0.081 (2) | |
C3 | 0.1591 (3) | 1.8091 (9) | 0.2440 (4) | 0.0589 (15) | |
C4 | 0.1556 (3) | 1.7198 (8) | 0.3090 (3) | 0.0465 (12) | |
C5 | 0.1146 (3) | 1.8174 (9) | 0.3589 (3) | 0.0541 (13) | |
H5A | 0.0727 | 1.8906 | 0.3293 | 0.065* | |
H5B | 0.1461 | 1.9179 | 0.3896 | 0.065* | |
C6 | 0.0875 (3) | 1.6647 (9) | 0.4086 (3) | 0.0521 (13) | |
C7 | 0.0272 (4) | 1.5276 (13) | 0.3621 (4) | 0.0748 (19) | |
H7A | 0.0469 | 1.4494 | 0.3277 | 0.112* | |
H7B | −0.0124 | 1.6123 | 0.3356 | 0.112* | |
H7C | 0.0092 | 1.4352 | 0.3939 | 0.112* | |
C8 | 0.0573 (5) | 1.7859 (13) | 0.4649 (4) | 0.088 (2) | |
H8A | 0.0171 | 1.8704 | 0.4396 | 0.132* | |
H8B | 0.0953 | 1.8718 | 0.4935 | 0.132* | |
H8C | 0.0406 | 1.6918 | 0.4969 | 0.132* | |
C9 | 0.1524 (3) | 1.5320 (8) | 0.4483 (3) | 0.0501 (13) | |
H9A | 0.1849 | 1.6155 | 0.4853 | 0.060* | |
H9B | 0.1341 | 1.4208 | 0.4736 | 0.060* | |
C10 | 0.1955 (3) | 1.4417 (7) | 0.3981 (3) | 0.0419 (11) | |
C11 | 0.1948 (3) | 1.5315 (8) | 0.3326 (3) | 0.0474 (12) | |
H11 | 0.2206 | 1.4693 | 0.3017 | 0.057* | |
C12 | 0.2392 (3) | 1.2574 (8) | 0.4195 (3) | 0.0471 (12) | |
H12 | 0.2619 | 1.2009 | 0.3849 | 0.057* | |
C13 | 0.2497 (3) | 1.1623 (8) | 0.4841 (3) | 0.0454 (11) | |
H13 | 0.2279 | 1.2220 | 0.5188 | 0.055* | |
C14 | 0.2919 (3) | 0.9732 (7) | 0.5066 (3) | 0.0421 (11) | |
C15 | 0.3278 (3) | 0.8633 (8) | 0.4615 (3) | 0.0487 (12) | |
H15 | 0.3264 | 0.9124 | 0.4145 | 0.058* | |
C16 | 0.3653 (3) | 0.6840 (8) | 0.4851 (3) | 0.0461 (12) | |
H16 | 0.3890 | 0.6139 | 0.4540 | 0.055* | |
C17 | 0.3677 (3) | 0.6079 (7) | 0.5546 (2) | 0.0366 (10) | |
C18 | 0.3317 (3) | 0.7111 (8) | 0.6003 (3) | 0.0469 (12) | |
H18 | 0.3324 | 0.6597 | 0.6470 | 0.056* | |
C19 | 0.2945 (3) | 0.8915 (8) | 0.5759 (3) | 0.0485 (12) | |
H19 | 0.2705 | 0.9605 | 0.6069 | 0.058* | |
C20 | 0.4439 (3) | 0.3009 (9) | 0.5405 (3) | 0.0488 (12) | |
H20 | 0.4467 | 0.3207 | 0.4920 | 0.059* | |
C21 | 0.4750 (3) | 0.1469 (8) | 0.5857 (3) | 0.0476 (12) | |
H21 | 0.5030 | 0.0407 | 0.5732 | 0.057* | |
C22 | 0.4183 (3) | 0.3371 (7) | 0.6475 (3) | 0.0413 (11) | |
H22 | 0.3995 | 0.3893 | 0.6856 | 0.050* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Hg1 | 0.0579 (2) | 0.04093 (17) | 0.03286 (16) | 0.000 | 0.02053 (12) | 0.000 |
I1 | 0.0757 (3) | 0.0706 (3) | 0.0394 (2) | −0.0295 (2) | 0.02794 (18) | −0.01058 (15) |
N1 | 0.165 (8) | 0.101 (6) | 0.144 (8) | 0.062 (6) | 0.038 (6) | 0.065 (6) |
N2 | 0.177 (8) | 0.111 (6) | 0.123 (6) | 0.046 (6) | 0.104 (7) | 0.048 (5) |
N3 | 0.040 (2) | 0.037 (2) | 0.0310 (19) | −0.0014 (16) | 0.0078 (16) | 0.0001 (15) |
N4 | 0.054 (2) | 0.035 (2) | 0.0290 (18) | 0.0050 (18) | 0.0109 (17) | 0.0047 (15) |
C1 | 0.102 (6) | 0.079 (5) | 0.079 (5) | 0.022 (4) | 0.046 (5) | 0.039 (4) |
C2 | 0.094 (6) | 0.073 (4) | 0.078 (5) | 0.021 (4) | 0.021 (4) | 0.030 (4) |
C3 | 0.056 (3) | 0.055 (3) | 0.068 (4) | 0.009 (3) | 0.018 (3) | 0.021 (3) |
C4 | 0.039 (3) | 0.044 (3) | 0.054 (3) | 0.001 (2) | 0.008 (2) | 0.008 (2) |
C5 | 0.058 (3) | 0.042 (3) | 0.062 (3) | 0.009 (2) | 0.014 (3) | 0.004 (2) |
C6 | 0.049 (3) | 0.055 (3) | 0.054 (3) | 0.005 (3) | 0.017 (2) | −0.001 (3) |
C7 | 0.048 (4) | 0.090 (5) | 0.085 (5) | −0.011 (3) | 0.014 (3) | 0.004 (4) |
C8 | 0.105 (6) | 0.091 (5) | 0.081 (5) | 0.036 (5) | 0.047 (5) | 0.005 (4) |
C9 | 0.058 (3) | 0.045 (3) | 0.047 (3) | −0.001 (2) | 0.013 (3) | 0.001 (2) |
C10 | 0.038 (3) | 0.037 (3) | 0.048 (3) | −0.0038 (19) | 0.006 (2) | 0.002 (2) |
C11 | 0.049 (3) | 0.043 (3) | 0.053 (3) | 0.003 (2) | 0.018 (2) | 0.008 (2) |
C12 | 0.050 (3) | 0.041 (3) | 0.053 (3) | 0.001 (2) | 0.018 (2) | 0.005 (2) |
C13 | 0.050 (3) | 0.040 (3) | 0.046 (3) | 0.000 (2) | 0.010 (2) | −0.002 (2) |
C14 | 0.046 (3) | 0.037 (2) | 0.041 (3) | −0.002 (2) | 0.007 (2) | 0.002 (2) |
C15 | 0.060 (3) | 0.046 (3) | 0.043 (3) | 0.003 (3) | 0.019 (2) | 0.012 (2) |
C16 | 0.055 (3) | 0.046 (3) | 0.043 (3) | 0.007 (2) | 0.023 (2) | 0.007 (2) |
C17 | 0.041 (3) | 0.033 (2) | 0.033 (2) | −0.002 (2) | 0.0049 (19) | −0.0004 (18) |
C18 | 0.062 (3) | 0.048 (3) | 0.030 (2) | 0.006 (2) | 0.011 (2) | 0.003 (2) |
C19 | 0.059 (3) | 0.048 (3) | 0.039 (3) | 0.012 (3) | 0.013 (2) | −0.002 (2) |
C20 | 0.063 (3) | 0.055 (3) | 0.033 (2) | 0.013 (3) | 0.020 (2) | 0.006 (2) |
C21 | 0.061 (3) | 0.049 (3) | 0.037 (2) | 0.015 (3) | 0.019 (2) | 0.002 (2) |
C22 | 0.054 (3) | 0.040 (3) | 0.034 (2) | 0.002 (2) | 0.018 (2) | 0.0008 (19) |
Hg1—N4i | 2.326 (4) | C8—H8B | 0.9600 |
Hg1—N4 | 2.326 (4) | C8—H8C | 0.9600 |
Hg1—I1i | 2.7277 (4) | C9—C10 | 1.499 (8) |
Hg1—I1 | 2.7277 (4) | C9—H9A | 0.9700 |
N1—C2 | 1.135 (10) | C9—H9B | 0.9700 |
N2—C1 | 1.135 (10) | C10—C11 | 1.351 (7) |
N3—C22 | 1.353 (6) | C10—C12 | 1.451 (7) |
N3—C20 | 1.371 (6) | C11—H11 | 0.9300 |
N3—C17 | 1.430 (6) | C12—C13 | 1.328 (7) |
N4—C22 | 1.311 (6) | C12—H12 | 0.9300 |
N4—C21 | 1.366 (6) | C13—C14 | 1.466 (7) |
C1—C3 | 1.435 (10) | C13—H13 | 0.9300 |
C2—C3 | 1.429 (9) | C14—C19 | 1.389 (7) |
C3—C4 | 1.362 (8) | C14—C15 | 1.394 (8) |
C4—C11 | 1.440 (7) | C15—C16 | 1.375 (7) |
C4—C5 | 1.486 (8) | C15—H15 | 0.9300 |
C5—C6 | 1.525 (8) | C16—C17 | 1.380 (7) |
C5—H5A | 0.9700 | C16—H16 | 0.9300 |
C5—H5B | 0.9700 | C17—C18 | 1.384 (7) |
C6—C8 | 1.527 (9) | C18—C19 | 1.383 (7) |
C6—C9 | 1.529 (8) | C18—H18 | 0.9300 |
C6—C7 | 1.535 (9) | C19—H19 | 0.9300 |
C7—H7A | 0.9600 | C20—C21 | 1.348 (7) |
C7—H7B | 0.9600 | C20—H20 | 0.9300 |
C7—H7C | 0.9600 | C21—H21 | 0.9300 |
C8—H8A | 0.9600 | C22—H22 | 0.9300 |
N4i—Hg1—N4 | 100.90 (19) | C10—C9—H9A | 108.8 |
N4i—Hg1—I1i | 122.15 (10) | C6—C9—H9A | 108.8 |
N4—Hg1—I1i | 97.07 (10) | C10—C9—H9B | 108.8 |
N4i—Hg1—I1 | 97.07 (10) | C6—C9—H9B | 108.8 |
N4—Hg1—I1 | 122.15 (10) | H9A—C9—H9B | 107.7 |
I1i—Hg1—I1 | 118.08 (2) | C11—C10—C12 | 119.1 (5) |
C22—N3—C20 | 106.1 (4) | C11—C10—C9 | 120.6 (5) |
C22—N3—C17 | 127.2 (4) | C12—C10—C9 | 120.3 (5) |
C20—N3—C17 | 126.6 (4) | C10—C11—C4 | 122.4 (5) |
C22—N4—C21 | 106.1 (4) | C10—C11—H11 | 118.8 |
C22—N4—Hg1 | 131.2 (3) | C4—C11—H11 | 118.8 |
C21—N4—Hg1 | 122.6 (3) | C13—C12—C10 | 125.7 (5) |
N2—C1—C3 | 178.8 (10) | C13—C12—H12 | 117.1 |
N1—C2—C3 | 179.6 (10) | C10—C12—H12 | 117.1 |
C4—C3—C2 | 122.2 (6) | C12—C13—C14 | 127.0 (5) |
C4—C3—C1 | 122.5 (5) | C12—C13—H13 | 116.5 |
C2—C3—C1 | 115.3 (6) | C14—C13—H13 | 116.5 |
C3—C4—C11 | 120.2 (5) | C19—C14—C15 | 117.0 (5) |
C3—C4—C5 | 121.4 (5) | C19—C14—C13 | 118.8 (5) |
C11—C4—C5 | 118.3 (5) | C15—C14—C13 | 124.1 (5) |
C4—C5—C6 | 113.7 (5) | C16—C15—C14 | 121.6 (5) |
C4—C5—H5A | 108.8 | C16—C15—H15 | 119.2 |
C6—C5—H5A | 108.8 | C14—C15—H15 | 119.2 |
C4—C5—H5B | 108.8 | C15—C16—C17 | 120.2 (5) |
C6—C5—H5B | 108.8 | C15—C16—H16 | 119.9 |
H5A—C5—H5B | 107.7 | C17—C16—H16 | 119.9 |
C5—C6—C8 | 108.5 (5) | C16—C17—C18 | 119.8 (5) |
C5—C6—C9 | 108.6 (5) | C16—C17—N3 | 120.5 (4) |
C8—C6—C9 | 109.8 (5) | C18—C17—N3 | 119.7 (4) |
C5—C6—C7 | 109.9 (5) | C19—C18—C17 | 119.2 (5) |
C8—C6—C7 | 110.0 (6) | C19—C18—H18 | 120.4 |
C9—C6—C7 | 110.0 (5) | C17—C18—H18 | 120.4 |
C6—C7—H7A | 109.5 | C18—C19—C14 | 122.2 (5) |
C6—C7—H7B | 109.5 | C18—C19—H19 | 118.9 |
H7A—C7—H7B | 109.5 | C14—C19—H19 | 118.9 |
C6—C7—H7C | 109.5 | C21—C20—N3 | 106.9 (4) |
H7A—C7—H7C | 109.5 | C21—C20—H20 | 126.5 |
H7B—C7—H7C | 109.5 | N3—C20—H20 | 126.5 |
C6—C8—H8A | 109.5 | C20—C21—N4 | 109.4 (4) |
C6—C8—H8B | 109.5 | C20—C21—H21 | 125.3 |
H8A—C8—H8B | 109.5 | N4—C21—H21 | 125.3 |
C6—C8—H8C | 109.5 | N4—C22—N3 | 111.4 (4) |
H8A—C8—H8C | 109.5 | N4—C22—H22 | 124.3 |
H8B—C8—H8C | 109.5 | N3—C22—H22 | 124.3 |
C10—C9—C6 | 113.8 (5) | ||
N4i—Hg1—N4—C22 | −46.1 (4) | C11—C10—C12—C13 | 174.5 (5) |
I1i—Hg1—N4—C22 | −170.9 (4) | C9—C10—C12—C13 | −5.0 (8) |
I1—Hg1—N4—C22 | 59.5 (5) | C10—C12—C13—C14 | 178.3 (5) |
N4i—Hg1—N4—C21 | 134.9 (4) | C12—C13—C14—C19 | −177.6 (5) |
I1i—Hg1—N4—C21 | 10.1 (4) | C12—C13—C14—C15 | −0.3 (9) |
I1—Hg1—N4—C21 | −119.5 (4) | C19—C14—C15—C16 | −1.1 (8) |
N1—C2—C3—C4 | 113 (100) | C13—C14—C15—C16 | −178.4 (5) |
N1—C2—C3—C1 | −67 (100) | C14—C15—C16—C17 | 0.3 (8) |
N2—C1—C3—C4 | −128 (47) | C15—C16—C17—C18 | 0.7 (8) |
N2—C1—C3—C2 | 51 (48) | C15—C16—C17—N3 | −179.3 (5) |
C2—C3—C4—C11 | −178.3 (6) | C22—N3—C17—C16 | 175.5 (5) |
C1—C3—C4—C11 | 0.8 (10) | C20—N3—C17—C16 | −1.7 (8) |
C2—C3—C4—C5 | −1.2 (10) | C22—N3—C17—C18 | −4.6 (7) |
C1—C3—C4—C5 | 177.9 (7) | C20—N3—C17—C18 | 178.2 (5) |
C3—C4—C5—C6 | 154.3 (6) | C16—C17—C18—C19 | −1.0 (8) |
C11—C4—C5—C6 | −28.5 (7) | N3—C17—C18—C19 | 179.1 (5) |
C4—C5—C6—C8 | 171.2 (6) | C17—C18—C19—C14 | 0.1 (9) |
C4—C5—C6—C9 | 51.9 (6) | C15—C14—C19—C18 | 0.9 (8) |
C4—C5—C6—C7 | −68.5 (7) | C13—C14—C19—C18 | 178.4 (5) |
C5—C6—C9—C10 | −49.4 (6) | C22—N3—C20—C21 | 0.4 (6) |
C8—C6—C9—C10 | −167.9 (5) | C17—N3—C20—C21 | 178.1 (5) |
C7—C6—C9—C10 | 70.9 (6) | N3—C20—C21—N4 | −0.5 (7) |
C6—C9—C10—C11 | 23.9 (7) | C22—N4—C21—C20 | 0.4 (6) |
C6—C9—C10—C12 | −156.7 (5) | Hg1—N4—C21—C20 | 179.7 (4) |
C12—C10—C11—C4 | −177.0 (5) | C21—N4—C22—N3 | −0.2 (6) |
C9—C10—C11—C4 | 2.4 (8) | Hg1—N4—C22—N3 | −179.3 (3) |
C3—C4—C11—C10 | 177.1 (6) | C20—N3—C22—N4 | −0.2 (6) |
C5—C4—C11—C10 | −0.1 (8) | C17—N3—C22—N4 | −177.8 (4) |
Symmetry code: (i) −x+1, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···N2ii | 0.93 | 2.70 | 3.541 (15) | 151 |
C18—H18···I1iii | 0.93 | 3.09 | 3.864 (5) | 142 |
Symmetry codes: (ii) x, −y+3, z+1/2; (iii) x, y+1, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···N2i | 0.93 | 2.70 | 3.541 (15) | 151 |
C18—H18···I1ii | 0.93 | 3.09 | 3.864 (5) | 142 |
Symmetry codes: (i) x, −y+3, z+1/2; (ii) x, y+1, z. |
Acknowledgements
This work was supported by the Program for New Century Excellent Talents in University (China), the Doctoral Program Foundation of the Ministry of Education of China (20113401110004), the National Natural Science Foundation of China (21271003 and 21271004), the Natural Science Foundation of the Education Committee of Anhui Province (KJ2012A024), the Natural Science Foundation of Anhui Province (1208085MB22) and the 211 Project of Anhui University
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The organic ligand of the title compound has previously been investigated for its optical properties (Zheng et al., 2013). In addition, some mercury(II) complexes in which the Hg(II) cation is four-coordinated by two terminal iodide ions and two nitrogen atoms from organic ligands to form distorted tetrahedral geometry have been reported (Li, 2011; Shirvan et al., 2012). In this study, we report the crystal structure of the title compound (Fig. 1). In the molecular packing structure of the compound, intermolecular C—H···I interactions link the molecules into chains. The neighboring chains are further linked into sheets through C—H···N hydrogen bonding interactions (Fig.2). Intermolecular hydrogen bonds lengths and angles are reported in Table.1.