metal-organic compounds
[1,3-Bis(2-ethoxyphenyl)triazenido]chloridomercury(II)
aDepartment of Chemistry, Islamic Azad University, Karaj Branch, Karaj, Iran, and bFaculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
*Correspondence e-mail: rofouei_mk@yahoo.com
In the title compound, [Hg(C16H18N3O2)Cl], the HgII atom is four-coordinated in a tetrahedral geometry by two N atoms from the 1,3-chelating and one O atom of a 1,3-bis(2-ethoxyphenyl)triazenido ligand and one terminal chloride ion. The dihedral angle between the aromatic rings is 1.72 (14)°. In the crystal C—H⋯π stacking interactions occur.
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell APEX2; data reduction: SAINT (Bruker, 2005); 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
10.1107/S160053680900539X/pv2138sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680900539X/pv2138Isup2.hkl
A solution of [1,3-bis(2-ethoxyphenyl)triazene] (1 mmol, 0.285 g) in acetonitril (10 ml) and triethylamin (0.3 ml) was added to a solution of HgCl2 (1 mmol, 0.271 g) in methanol (10 ml) yielded the title compound. The suitable crystals for X-ray analysis were obtained from a solution of ethyl acetate after one week. m.p. = 449-451 K.
All hydrogen atoms were included in the
at calculated positions in isotropic approximation in riding mode with distances C—H = 0.95, 0.99 and 0.98 Å for aryl, methylene and methyl groups, respectively, and Uiso(H) parameters equal to 1.2Ueq(C) for methylene and and equal to 1.5Ueq(C) for methyl groups.Data collection: APEX2 (Bruker, 2005); cell
APEX2 (Bruker, 2005); data reduction: APEX2 (Bruker, 2005); 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).[Hg(C16H18N3O2)Cl] | F(000) = 992 |
Mr = 520.37 | Dx = 2.062 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 8520 reflections |
a = 10.1600 (5) Å | θ = 3–29° |
b = 7.3802 (4) Å | µ = 9.35 mm−1 |
c = 22.5655 (11) Å | T = 100 K |
β = 97.817 (1)° | Prism, colorless |
V = 1676.30 (15) Å3 | 0.15 × 0.12 × 0.08 mm |
Z = 4 |
Bruker APEXII CCD area-detector diffractometer | 4451 independent reflections |
Radiation source: fine-focus sealed tube | 4009 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
ϕ and ω scans | θmax = 29.0°, θmin = 1.8° |
Absorption correction: multi-scan (APEX2; Bruker, 2005) | h = −13→13 |
Tmin = 0.280, Tmax = 0.479 | k = −10→10 |
19713 measured reflections | l = −30→30 |
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)] = 0.021 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.049 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.02P)2 + 2P] where P = (Fo2 + 2Fc2)/3 |
4451 reflections | (Δ/σ)max < 0.001 |
210 parameters | Δρmax = 0.98 e Å−3 |
0 restraints | Δρmin = −1.19 e Å−3 |
[Hg(C16H18N3O2)Cl] | V = 1676.30 (15) Å3 |
Mr = 520.37 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.1600 (5) Å | µ = 9.35 mm−1 |
b = 7.3802 (4) Å | T = 100 K |
c = 22.5655 (11) Å | 0.15 × 0.12 × 0.08 mm |
β = 97.817 (1)° |
Bruker APEXII CCD area-detector diffractometer | 4451 independent reflections |
Absorption correction: multi-scan (APEX2; Bruker, 2005) | 4009 reflections with I > 2σ(I) |
Tmin = 0.280, Tmax = 0.479 | Rint = 0.036 |
19713 measured reflections |
R[F2 > 2σ(F2)] = 0.021 | 0 restraints |
wR(F2) = 0.049 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.98 e Å−3 |
4451 reflections | Δρmin = −1.19 e Å−3 |
210 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 | 0.849438 (10) | 0.312052 (15) | 0.054958 (5) | 0.01838 (4) | |
Cl1 | 0.65126 (8) | 0.35249 (12) | 0.09032 (4) | 0.03193 (18) | |
O1 | 1.0251 (2) | 0.5538 (3) | 0.20153 (9) | 0.0187 (4) | |
O2 | 0.82363 (19) | 0.1411 (3) | −0.05286 (9) | 0.0174 (4) | |
N1 | 1.0926 (2) | 0.4172 (3) | 0.10284 (10) | 0.0159 (4) | |
N2 | 1.1288 (2) | 0.3584 (3) | 0.05434 (11) | 0.0160 (5) | |
N3 | 1.0261 (2) | 0.2874 (3) | 0.01919 (11) | 0.0158 (5) | |
C1 | 1.1957 (3) | 0.4946 (4) | 0.14348 (12) | 0.0154 (5) | |
C2 | 1.1558 (3) | 0.5710 (4) | 0.19570 (12) | 0.0162 (5) | |
C3 | 1.2500 (3) | 0.6550 (4) | 0.23737 (13) | 0.0195 (6) | |
H3A | 1.2236 | 0.7097 | 0.2720 | 0.023* | |
C4 | 1.3828 (3) | 0.6591 (4) | 0.22844 (13) | 0.0198 (6) | |
H4A | 1.4464 | 0.7174 | 0.2569 | 0.024* | |
C5 | 1.4232 (3) | 0.5785 (4) | 0.17820 (13) | 0.0197 (6) | |
H5A | 1.5143 | 0.5790 | 0.1728 | 0.024* | |
C6 | 1.3297 (3) | 0.4974 (4) | 0.13598 (13) | 0.0175 (5) | |
H6A | 1.3572 | 0.4432 | 0.1015 | 0.021* | |
C7 | 0.9817 (3) | 0.6273 (4) | 0.25429 (14) | 0.0237 (6) | |
H7A | 0.9954 | 0.7601 | 0.2559 | 0.028* | |
H7B | 1.0324 | 0.5727 | 0.2905 | 0.028* | |
C8 | 0.8362 (3) | 0.5833 (5) | 0.25128 (16) | 0.0304 (7) | |
H8A | 0.8021 | 0.6340 | 0.2864 | 0.046* | |
H8B | 0.8242 | 0.4515 | 0.2507 | 0.046* | |
H8C | 0.7874 | 0.6359 | 0.2148 | 0.046* | |
C9 | 1.0519 (3) | 0.2108 (4) | −0.03482 (12) | 0.0153 (5) | |
C10 | 0.9451 (3) | 0.1305 (4) | −0.07242 (12) | 0.0148 (5) | |
C11 | 0.9671 (3) | 0.0489 (4) | −0.12541 (12) | 0.0183 (5) | |
H11A | 0.8950 | −0.0038 | −0.1508 | 0.022* | |
C12 | 1.0944 (3) | 0.0436 (4) | −0.14161 (13) | 0.0204 (6) | |
H12A | 1.1091 | −0.0147 | −0.1777 | 0.024* | |
C13 | 1.1995 (3) | 0.1227 (4) | −0.10547 (13) | 0.0210 (6) | |
H13A | 1.2860 | 0.1197 | −0.1170 | 0.025* | |
C14 | 1.1789 (3) | 0.2072 (4) | −0.05198 (13) | 0.0183 (6) | |
H14A | 1.2512 | 0.2621 | −0.0274 | 0.022* | |
C15 | 0.7136 (3) | 0.0536 (4) | −0.08871 (13) | 0.0190 (5) | |
H15A | 0.7319 | −0.0773 | −0.0925 | 0.023* | |
H15B | 0.6993 | 0.1072 | −0.1293 | 0.023* | |
C16 | 0.5924 (3) | 0.0808 (5) | −0.05819 (15) | 0.0258 (6) | |
H16A | 0.5188 | 0.0086 | −0.0785 | 0.039* | |
H16B | 0.5677 | 0.2092 | −0.0598 | 0.039* | |
H16C | 0.6117 | 0.0423 | −0.0163 | 0.039* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Hg1 | 0.01754 (6) | 0.02133 (6) | 0.01728 (6) | 0.00076 (4) | 0.00604 (4) | −0.00146 (4) |
Cl1 | 0.0241 (4) | 0.0361 (4) | 0.0390 (5) | −0.0002 (3) | 0.0165 (3) | −0.0071 (3) |
O1 | 0.0217 (10) | 0.0216 (10) | 0.0140 (9) | −0.0016 (8) | 0.0065 (8) | −0.0038 (8) |
O2 | 0.0142 (9) | 0.0238 (10) | 0.0144 (9) | −0.0025 (7) | 0.0026 (8) | −0.0018 (8) |
N1 | 0.0206 (11) | 0.0148 (11) | 0.0119 (10) | 0.0023 (9) | 0.0014 (9) | −0.0006 (9) |
N2 | 0.0193 (11) | 0.0152 (11) | 0.0130 (11) | 0.0024 (9) | 0.0007 (9) | 0.0007 (8) |
N3 | 0.0156 (11) | 0.0189 (12) | 0.0127 (11) | −0.0012 (9) | 0.0016 (9) | 0.0002 (9) |
C1 | 0.0193 (13) | 0.0121 (12) | 0.0142 (12) | 0.0003 (10) | 0.0000 (10) | 0.0001 (10) |
C2 | 0.0207 (13) | 0.0132 (12) | 0.0146 (12) | 0.0013 (10) | 0.0020 (10) | 0.0011 (10) |
C3 | 0.0268 (15) | 0.0160 (14) | 0.0150 (13) | 0.0007 (11) | 0.0010 (11) | −0.0007 (10) |
C4 | 0.0259 (14) | 0.0145 (13) | 0.0171 (13) | −0.0006 (11) | −0.0046 (11) | 0.0019 (10) |
C5 | 0.0171 (13) | 0.0196 (14) | 0.0212 (14) | 0.0009 (11) | −0.0017 (11) | 0.0021 (11) |
C6 | 0.0208 (13) | 0.0164 (13) | 0.0151 (13) | 0.0027 (10) | 0.0017 (11) | 0.0013 (10) |
C7 | 0.0329 (17) | 0.0215 (14) | 0.0182 (14) | −0.0011 (12) | 0.0095 (13) | −0.0021 (11) |
C8 | 0.0306 (17) | 0.0317 (18) | 0.0326 (18) | −0.0023 (14) | 0.0175 (14) | −0.0018 (14) |
C9 | 0.0179 (13) | 0.0167 (13) | 0.0115 (12) | 0.0016 (10) | 0.0023 (10) | 0.0017 (10) |
C10 | 0.0160 (12) | 0.0141 (12) | 0.0146 (12) | −0.0005 (10) | 0.0028 (10) | 0.0031 (10) |
C11 | 0.0224 (13) | 0.0196 (13) | 0.0128 (12) | −0.0014 (11) | 0.0016 (10) | −0.0001 (11) |
C12 | 0.0226 (14) | 0.0243 (15) | 0.0150 (13) | 0.0047 (11) | 0.0050 (11) | 0.0011 (11) |
C13 | 0.0182 (13) | 0.0262 (15) | 0.0191 (14) | 0.0052 (11) | 0.0043 (11) | 0.0004 (12) |
C14 | 0.0161 (12) | 0.0239 (15) | 0.0148 (13) | −0.0010 (10) | 0.0016 (10) | 0.0004 (11) |
C15 | 0.0166 (12) | 0.0210 (14) | 0.0186 (13) | −0.0030 (11) | −0.0006 (10) | 0.0012 (11) |
C16 | 0.0169 (13) | 0.0344 (17) | 0.0268 (16) | −0.0021 (12) | 0.0053 (12) | 0.0041 (13) |
Hg1—N3 | 2.074 (2) | C7—C8 | 1.507 (5) |
Hg1—Cl1 | 2.2840 (8) | C7—H7A | 0.9900 |
Hg1—N1 | 2.674 (2) | C7—H7B | 0.9900 |
Hg1—O2 | 2.721 (2) | C8—H8A | 0.9800 |
O1—C2 | 1.358 (3) | C8—H8B | 0.9800 |
O1—C7 | 1.431 (3) | C8—H8C | 0.9800 |
O2—C10 | 1.368 (3) | C9—C14 | 1.397 (4) |
O2—C15 | 1.441 (3) | C9—C10 | 1.413 (4) |
N1—N2 | 1.277 (3) | C10—C11 | 1.384 (4) |
N1—C1 | 1.415 (3) | C11—C12 | 1.391 (4) |
N2—N3 | 1.329 (3) | C11—H11A | 0.9500 |
N3—C9 | 1.400 (4) | C12—C13 | 1.382 (4) |
C1—C6 | 1.395 (4) | C12—H12A | 0.9500 |
C1—C2 | 1.415 (4) | C13—C14 | 1.399 (4) |
C2—C3 | 1.393 (4) | C13—H13A | 0.9500 |
C3—C4 | 1.391 (4) | C14—H14A | 0.9500 |
C3—H3A | 0.9500 | C15—C16 | 1.503 (4) |
C4—C5 | 1.391 (4) | C15—H15A | 0.9900 |
C4—H4A | 0.9500 | C15—H15B | 0.9900 |
C5—C6 | 1.386 (4) | C16—H16A | 0.9800 |
C5—H5A | 0.9500 | C16—H16B | 0.9800 |
C6—H6A | 0.9500 | C16—H16C | 0.9800 |
N3—Hg1—Cl1 | 176.60 (7) | C8—C7—H7B | 110.3 |
N3—Hg1—N1 | 51.80 (8) | H7A—C7—H7B | 108.6 |
Cl1—Hg1—N1 | 129.12 (5) | C7—C8—H8A | 109.5 |
N3—Hg1—O2 | 66.09 (8) | C7—C8—H8B | 109.5 |
Cl1—Hg1—O2 | 112.99 (5) | H8A—C8—H8B | 109.5 |
N1—Hg1—O2 | 117.86 (6) | C7—C8—H8C | 109.5 |
Hg1—O2—C10 | 109.48 (8) | H8A—C8—H8C | 109.5 |
Hg1—O2—C15 | 133.07 (16) | H8B—C8—H8C | 109.5 |
C2—O1—C7 | 117.4 (2) | C14—C9—N3 | 122.6 (3) |
C10—O2—C15 | 117.3 (2) | C14—C9—C10 | 119.2 (3) |
N2—N1—C1 | 114.7 (2) | N3—C9—C10 | 118.2 (2) |
N2—N1—Hg1 | 85.01 (16) | O2—C10—C11 | 124.2 (2) |
C1—N1—Hg1 | 160.18 (18) | O2—C10—C9 | 115.8 (2) |
N1—N2—N3 | 110.6 (2) | C11—C10—C9 | 120.0 (3) |
N2—N3—C9 | 117.0 (2) | C10—C11—C12 | 120.3 (3) |
N2—N3—Hg1 | 112.58 (18) | C10—C11—H11A | 119.9 |
C9—N3—Hg1 | 130.44 (19) | C12—C11—H11A | 119.9 |
C6—C1—C2 | 119.4 (3) | C13—C12—C11 | 120.3 (3) |
C6—C1—N1 | 125.2 (3) | C13—C12—H12A | 119.9 |
C2—C1—N1 | 115.5 (2) | C11—C12—H12A | 119.9 |
O1—C2—C3 | 124.6 (3) | C12—C13—C14 | 120.2 (3) |
O1—C2—C1 | 116.0 (2) | C12—C13—H13A | 119.9 |
C3—C2—C1 | 119.4 (3) | C14—C13—H13A | 119.9 |
C4—C3—C2 | 120.2 (3) | C9—C14—C13 | 120.0 (3) |
C4—C3—H3A | 119.9 | C9—C14—H14A | 120.0 |
C2—C3—H3A | 119.9 | C13—C14—H14A | 120.0 |
C3—C4—C5 | 120.6 (3) | O2—C15—C16 | 107.7 (2) |
C3—C4—H4A | 119.7 | O2—C15—H15A | 110.2 |
C5—C4—H4A | 119.7 | C16—C15—H15A | 110.2 |
C6—C5—C4 | 119.6 (3) | O2—C15—H15B | 110.2 |
C6—C5—H5A | 120.2 | C16—C15—H15B | 110.2 |
C4—C5—H5A | 120.2 | H15A—C15—H15B | 108.5 |
C5—C6—C1 | 120.8 (3) | C15—C16—H16A | 109.5 |
C5—C6—H6A | 119.6 | C15—C16—H16B | 109.5 |
C1—C6—H6A | 119.6 | H16A—C16—H16B | 109.5 |
O1—C7—C8 | 107.0 (3) | C15—C16—H16C | 109.5 |
O1—C7—H7A | 110.3 | H16A—C16—H16C | 109.5 |
C8—C7—H7A | 110.3 | H16B—C16—H16C | 109.5 |
O1—C7—H7B | 110.3 | ||
N3—Hg1—O2—C10 | 0.40 (16) | N1—C1—C2—C3 | −178.1 (2) |
Cl1—Hg1—O2—C10 | 176.84 (15) | O1—C2—C3—C4 | 177.3 (3) |
N1—Hg1—O2—C10 | −1.31 (18) | C1—C2—C3—C4 | −1.8 (4) |
N3—Hg1—O2—C15 | 175.4 (2) | C2—C3—C4—C5 | −0.5 (4) |
Cl1—Hg1—O2—C15 | −8.2 (2) | C3—C4—C5—C6 | 1.6 (4) |
N1—Hg1—O2—C15 | 173.7 (2) | C4—C5—C6—C1 | −0.5 (4) |
N3—Hg1—N1—N2 | 1.55 (15) | C2—C1—C6—C5 | −1.8 (4) |
Cl1—Hg1—N1—N2 | −174.26 (12) | N1—C1—C6—C5 | 179.3 (3) |
O2—Hg1—N1—N2 | 3.54 (17) | C2—O1—C7—C8 | −177.5 (2) |
N3—Hg1—N1—C1 | 177.1 (6) | N2—N3—C9—C14 | 0.1 (4) |
Cl1—Hg1—N1—C1 | 1.3 (6) | Hg1—N3—C9—C14 | 179.6 (2) |
O2—Hg1—N1—C1 | 179.1 (5) | N2—N3—C9—C10 | 178.6 (2) |
C1—N1—N2—N3 | 179.6 (2) | Hg1—N3—C9—C10 | −2.0 (4) |
Hg1—N1—N2—N3 | −2.03 (19) | C15—O2—C10—C11 | 3.1 (4) |
N1—N2—N3—C9 | −177.6 (2) | C15—O2—C10—C9 | −177.3 (2) |
N1—N2—N3—Hg1 | 2.8 (3) | C14—C9—C10—O2 | −179.4 (2) |
N1—Hg1—N3—N2 | −1.61 (15) | N3—C9—C10—O2 | 2.1 (4) |
N1—Hg1—N3—C9 | 178.9 (3) | C14—C9—C10—C11 | 0.3 (4) |
N2—N1—C1—C6 | −5.0 (4) | N3—C9—C10—C11 | −178.2 (2) |
Hg1—N1—C1—C6 | 179.8 (4) | O2—C10—C11—C12 | −179.6 (3) |
N2—N1—C1—C2 | 176.1 (2) | C9—C10—C11—C12 | 0.7 (4) |
Hg1—N1—C1—C2 | 0.9 (7) | C10—C11—C12—C13 | −1.2 (4) |
C7—O1—C2—C3 | 0.0 (4) | C11—C12—C13—C14 | 0.6 (5) |
C7—O1—C2—C1 | 179.1 (2) | N3—C9—C14—C13 | 177.6 (3) |
C6—C1—C2—O1 | −176.3 (2) | C10—C9—C14—C13 | −0.9 (4) |
N1—C1—C2—O1 | 2.7 (4) | C12—C13—C14—C9 | 0.4 (4) |
C6—C1—C2—C3 | 2.9 (4) | C10—O2—C15—C16 | 179.2 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···Cg1i | 0.95 | 2.87 | 3.598 (3) | 134 |
C15—H15B···Cg1ii | 0.99 | 2.68 | 3.511 (3) | 142 |
Symmetry codes: (i) −x+5/2, y+1/2, −z+1/2; (ii) −x+2, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Hg(C16H18N3O2)Cl] |
Mr | 520.37 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 10.1600 (5), 7.3802 (4), 22.5655 (11) |
β (°) | 97.817 (1) |
V (Å3) | 1676.30 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 9.35 |
Crystal size (mm) | 0.15 × 0.12 × 0.08 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (APEX2; Bruker, 2005) |
Tmin, Tmax | 0.280, 0.479 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19713, 4451, 4009 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.682 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.021, 0.049, 1.01 |
No. of reflections | 4451 |
No. of parameters | 210 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.98, −1.19 |
Computer programs: APEX2 (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···Cg1i | 0.95 | 2.87 | 3.598 (3) | 134 |
C15—H15B···Cg1ii | 0.99 | 2.68 | 3.511 (3) | 142 |
Symmetry codes: (i) −x+5/2, y+1/2, −z+1/2; (ii) −x+2, −y+1, −z. |
References
Bruker (2005). APEX2 and SAINT. Bruker AXS Inc. Madison, Wisconsin, USA. Google Scholar
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Recently we have reported the synthesis and crystal structure of [1,3-bis(2-methoxyphenyl)triazene with HgII as ML2 structure [Rofouei et al., 2008] and [1,3-bis(2-methoxybenzene)triazene with HgII as ML structure [Melardi et al., 2007]. In this article we report the synthesis and crystal structure of the title compound, (I).
In the title compound, the HgII atom is four-coordinated in a tetrahedral configuration by two N atoms from the chelating (1,3) and one O atom of ethoxyphenyl triazenido ligand and one terminal Cl atom leading to an asymmetric molecule (Fig. 1). There are interesting C—H···π stacking interactions between CH groups and aromatic phenyl rings with C—H···π distances of 2.869 Å for C3—H3A···Cg1 (5/2 - x, 1/2 + y, 1/2 - z) and 2.681 Å for C15—H15B···Cg1 (2 - x, 1 - y, -z) (Cg1 is centroid of C1—C6 ring) as presented in Fig. 2. The unit cell packing of the title compound showing stacking of molecules is presented at Fig. 3.