Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807041414/bx2105sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807041414/bx2105Isup2.hkl |
CCDC reference: 660168
The ligand, 2-(1H-tetrazol-5-yl)pyrimidine was synthesized by the literature method (Demko & Sharpless, 2001). A mixture of ZnCl2 (27 mg, 0.2 mmol) and the ligand (60 mg, 0.4 mmol) in N,N-dimethylformamide/ethanol (v/v = 3:1, 8 ml) in presence of a drop of triethylamine was placed in a Teflon-lined stainless-steel Parr bomb that was heated at 413 K for 36 h. Colorless crystals were collected after the bomb allowed to cool to room temperature during a period of 24 h. Yield, 30%.
H atoms were included in calculated positions and treated in the subsequent refinement as riding atoms, with C—H = 0.93 Å and Uiso(H) = 1.2Ueq(C,N).
Recently, several complexes of 5-(pyrimidin-2-yl)tetrazolato ligand have been reported containing iron(II), cobalt(II), nickel(II), zinc(II) and cadmium(II) metal ion [Rodríguez & Colacio (2006); Rodríguez et al., 2005, 2007; Liu & Fan, 2007]. The title compound poly[5-(pyrimidin-2-yl)tetrazolato]zinc(II)] (I, Fig. 1 and 2) is isostructural with the iron(II), cobalt(II) and nickel(II) analogs. The structure features a two-dimensional square-grid-like network with the grid side length of 6.315 (3) Å, in which ZnII atom is located on an inversion centre and exhibits a distorted octahedral coordination geometry around by six N atoms. Each ZnII atom coordinates to four ligands and each ligand bonds to two ZnII atoms through one of the pyrimidyl N atoms and the 1-positon tetrazole N for one, and one 3-position tetrazole N atom for the other. Selected bond distances and angles are listed in Table 1. In addition, in crystal structure such two-dimensional layers stack in an ABAB sequence.
For ligand preparation, see: Demko & Sharpless (2001). For related literature, see: Rodríguez & Colacio (2006); Rodríguez et al. (2005, 2007); Liu & Fan (2007).
Data collection: SMART (Bruker, 1998); cell refinement: SMART (Bruker, 1998); data reduction: SHELXTL (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997; molecular graphics: SHELXTL (Bruker, 1998); software used to prepare material for publication: SHELXTL (Bruker, 1998).
[Zn(C5H3N6)2] | F(000) = 720 |
Mr = 359.64 | Dx = 1.694 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 10696 reflections |
a = 8.3490 (17) Å | θ = 3.1–27.5° |
b = 9.4760 (19) Å | µ = 1.76 mm−1 |
c = 17.828 (4) Å | T = 293 K |
V = 1410.5 (5) Å3 | Block, colourless |
Z = 4 | 0.20 × 0.20 × 0.18 mm |
Bruker SMART 1000 CCD area-detector diffractometer | 1619 independent reflections |
Radiation source: fine-focus sealed tube | 1162 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.085 |
φ and ω scans | θmax = 27.5°, θmin = 3.3° |
Absorption correction: multi-scan (SADABS; Bruker, 1998) | h = −10→10 |
Tmin = 0.720, Tmax = 0.742 | k = −12→12 |
13281 measured reflections | l = −22→23 |
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)] = 0.059 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.081 | H-atom parameters constrained |
S = 1.19 | w = 1/[σ2(Fo2) + (0.0173P)2 + 1.2986P] where P = (Fo2 + 2Fc2)/3 |
1619 reflections | (Δ/σ)max < 0.001 |
106 parameters | Δρmax = 0.28 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
[Zn(C5H3N6)2] | V = 1410.5 (5) Å3 |
Mr = 359.64 | Z = 4 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 8.3490 (17) Å | µ = 1.76 mm−1 |
b = 9.4760 (19) Å | T = 293 K |
c = 17.828 (4) Å | 0.20 × 0.20 × 0.18 mm |
Bruker SMART 1000 CCD area-detector diffractometer | 1619 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1998) | 1162 reflections with I > 2σ(I) |
Tmin = 0.720, Tmax = 0.742 | Rint = 0.085 |
13281 measured reflections |
R[F2 > 2σ(F2)] = 0.059 | 0 restraints |
wR(F2) = 0.081 | H-atom parameters constrained |
S = 1.19 | Δρmax = 0.28 e Å−3 |
1619 reflections | Δρmin = −0.25 e Å−3 |
106 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 | ||
Zn1 | 1.0000 | 0.5000 | 0.5000 | 0.02321 (15) | |
N1 | 0.8536 (3) | 0.3208 (3) | 0.48306 (14) | 0.0251 (6) | |
N2 | 0.7488 (3) | 0.2405 (3) | 0.51939 (13) | 0.0293 (6) | |
N3 | 0.6979 (3) | 0.1430 (3) | 0.47237 (15) | 0.0277 (7) | |
N4 | 0.7676 (3) | 0.1574 (3) | 0.40459 (15) | 0.0286 (7) | |
N5 | 1.0407 (3) | 0.4532 (3) | 0.38246 (14) | 0.0229 (6) | |
N6 | 0.9801 (4) | 0.2806 (3) | 0.28978 (16) | 0.0442 (8) | |
C1 | 0.8634 (4) | 0.2684 (3) | 0.41356 (17) | 0.0241 (7) | |
C2 | 0.9676 (4) | 0.3365 (3) | 0.35780 (18) | 0.0264 (8) | |
C3 | 1.0735 (5) | 0.3528 (4) | 0.2425 (2) | 0.0491 (11) | |
H3A | 1.0860 | 0.3182 | 0.1940 | 0.059* | |
C4 | 1.1517 (5) | 0.4744 (4) | 0.2612 (2) | 0.0435 (10) | |
H4A | 1.2141 | 0.5230 | 0.2265 | 0.052* | |
C5 | 1.1340 (4) | 0.5217 (4) | 0.3333 (2) | 0.0355 (9) | |
H5A | 1.1878 | 0.6028 | 0.3484 | 0.043* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0251 (2) | 0.0189 (2) | 0.0256 (3) | −0.0015 (3) | −0.0001 (3) | −0.0023 (3) |
N1 | 0.0259 (14) | 0.0229 (14) | 0.0264 (16) | −0.0039 (13) | 0.0022 (12) | −0.0011 (12) |
N2 | 0.0332 (14) | 0.0247 (14) | 0.0299 (15) | −0.0076 (13) | 0.0055 (16) | −0.0035 (15) |
N3 | 0.0261 (15) | 0.0267 (15) | 0.0303 (15) | −0.0067 (13) | 0.0073 (13) | −0.0046 (13) |
N4 | 0.0312 (16) | 0.0278 (15) | 0.0269 (15) | −0.0085 (13) | 0.0058 (13) | −0.0063 (13) |
N5 | 0.0237 (16) | 0.0194 (13) | 0.0256 (14) | −0.0004 (10) | 0.0035 (12) | 0.0043 (11) |
N6 | 0.054 (2) | 0.0475 (19) | 0.0310 (17) | −0.0108 (18) | 0.0148 (16) | −0.0130 (15) |
C1 | 0.0259 (17) | 0.0225 (17) | 0.0239 (17) | −0.0016 (15) | 0.0015 (15) | −0.0036 (15) |
C2 | 0.026 (2) | 0.0256 (18) | 0.0276 (18) | −0.0002 (15) | 0.0024 (14) | −0.0004 (14) |
C3 | 0.064 (3) | 0.056 (3) | 0.027 (2) | −0.003 (2) | 0.017 (2) | −0.010 (2) |
C4 | 0.054 (3) | 0.040 (2) | 0.037 (2) | 0.000 (2) | 0.0209 (19) | 0.0069 (18) |
C5 | 0.038 (2) | 0.026 (2) | 0.043 (2) | −0.0001 (17) | 0.0066 (17) | 0.0049 (17) |
Zn1—N1i | 2.114 (3) | N4—C1 | 1.331 (4) |
Zn1—N1 | 2.114 (3) | N5—C2 | 1.338 (4) |
Zn1—N5 | 2.169 (3) | N5—C5 | 1.340 (4) |
Zn1—N5i | 2.169 (3) | N6—C2 | 1.327 (4) |
Zn1—N3ii | 2.193 (3) | N6—C3 | 1.337 (5) |
Zn1—N3iii | 2.193 (3) | C1—C2 | 1.470 (4) |
N1—N2 | 1.329 (3) | C3—C4 | 1.366 (5) |
N1—C1 | 1.337 (4) | C3—H3A | 0.9300 |
N2—N3 | 1.318 (4) | C4—C5 | 1.370 (5) |
N3—N4 | 1.348 (3) | C4—H4A | 0.9300 |
N3—Zn1iv | 2.193 (3) | C5—H5A | 0.9300 |
N1i—Zn1—N1 | 180.0 | N4—N3—Zn1iv | 126.1 (2) |
N1i—Zn1—N5 | 102.22 (9) | C1—N4—N3 | 103.4 (2) |
N1—Zn1—N5 | 77.78 (9) | C2—N5—C5 | 116.8 (3) |
N1i—Zn1—N5i | 77.78 (9) | C2—N5—Zn1 | 114.5 (2) |
N1—Zn1—N5i | 102.22 (9) | C5—N5—Zn1 | 128.6 (2) |
N5—Zn1—N5i | 180.00 (3) | C2—N6—C3 | 114.7 (3) |
N1i—Zn1—N3ii | 91.63 (11) | N4—C1—N1 | 111.6 (3) |
N1—Zn1—N3ii | 88.37 (11) | N4—C1—C2 | 128.4 (3) |
N5—Zn1—N3ii | 88.44 (10) | N1—C1—C2 | 120.0 (3) |
N5i—Zn1—N3ii | 91.56 (10) | N6—C2—N5 | 126.5 (3) |
N1i—Zn1—N3iii | 88.37 (11) | N6—C2—C1 | 119.3 (3) |
N1—Zn1—N3iii | 91.63 (11) | N5—C2—C1 | 114.2 (3) |
N5—Zn1—N3iii | 91.56 (10) | N6—C3—C4 | 123.8 (4) |
N5i—Zn1—N3iii | 88.44 (10) | N6—C3—H3A | 118.1 |
N3ii—Zn1—N3iii | 180.00 (14) | C4—C3—H3A | 118.1 |
N2—N1—C1 | 106.2 (3) | C3—C4—C5 | 117.0 (3) |
N2—N1—Zn1 | 140.5 (2) | C3—C4—H4A | 121.5 |
C1—N1—Zn1 | 113.3 (2) | C5—C4—H4A | 121.5 |
N3—N2—N1 | 107.7 (2) | N5—C5—C4 | 121.2 (3) |
N2—N3—N4 | 111.1 (2) | N5—C5—H5A | 119.4 |
N2—N3—Zn1iv | 122.2 (2) | C4—C5—H5A | 119.4 |
N5—Zn1—N1—N2 | −176.3 (4) | N3—N4—C1—N1 | −0.2 (4) |
N5i—Zn1—N1—N2 | 3.7 (4) | N3—N4—C1—C2 | −178.3 (3) |
N3ii—Zn1—N1—N2 | 95.0 (3) | N2—N1—C1—N4 | 0.2 (4) |
N3iii—Zn1—N1—N2 | −85.0 (3) | Zn1—N1—C1—N4 | −178.9 (2) |
N5—Zn1—N1—C1 | 2.3 (2) | N2—N1—C1—C2 | 178.4 (3) |
N5i—Zn1—N1—C1 | −177.7 (2) | Zn1—N1—C1—C2 | −0.6 (4) |
N3ii—Zn1—N1—C1 | −86.5 (2) | C3—N6—C2—N5 | −1.4 (5) |
N3iii—Zn1—N1—C1 | 93.5 (2) | C3—N6—C2—C1 | 177.9 (3) |
C1—N1—N2—N3 | 0.0 (3) | C5—N5—C2—N6 | 1.0 (5) |
Zn1—N1—N2—N3 | 178.6 (3) | Zn1—N5—C2—N6 | −176.1 (3) |
N1—N2—N3—N4 | −0.2 (4) | C5—N5—C2—C1 | −178.3 (3) |
N1—N2—N3—Zn1iv | −171.9 (2) | Zn1—N5—C2—C1 | 4.6 (3) |
N2—N3—N4—C1 | 0.2 (4) | N4—C1—C2—N6 | −4.2 (5) |
Zn1iv—N3—N4—C1 | 171.6 (2) | N1—C1—C2—N6 | 177.8 (3) |
N1i—Zn1—N5—C2 | 176.1 (2) | N4—C1—C2—N5 | 175.2 (3) |
N1—Zn1—N5—C2 | −3.9 (2) | N1—C1—C2—N5 | −2.8 (4) |
N3ii—Zn1—N5—C2 | 84.8 (2) | C2—N6—C3—C4 | 0.2 (6) |
N3iii—Zn1—N5—C2 | −95.2 (2) | N6—C3—C4—C5 | 1.3 (6) |
N1i—Zn1—N5—C5 | −0.5 (3) | C2—N5—C5—C4 | 0.7 (5) |
N1—Zn1—N5—C5 | 179.5 (3) | Zn1—N5—C5—C4 | 177.2 (3) |
N3ii—Zn1—N5—C5 | −91.8 (3) | C3—C4—C5—N5 | −1.7 (6) |
N3iii—Zn1—N5—C5 | 88.2 (3) |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1/2, −y+1/2, −z+1; (iii) −x+3/2, y+1/2, z; (iv) x−1/2, −y+1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C5H3N6)2] |
Mr | 359.64 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 8.3490 (17), 9.4760 (19), 17.828 (4) |
V (Å3) | 1410.5 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.76 |
Crystal size (mm) | 0.20 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 1998) |
Tmin, Tmax | 0.720, 0.742 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13281, 1619, 1162 |
Rint | 0.085 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.059, 0.081, 1.19 |
No. of reflections | 1619 |
No. of parameters | 106 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.25 |
Computer programs: SMART (Bruker, 1998), SHELXTL (Bruker, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997.
Zn1—N1 | 2.114 (3) | Zn1—N5i | 2.169 (3) |
Zn1—N5 | 2.169 (3) | ||
N1i—Zn1—N5 | 102.22 (9) | N5—Zn1—N3ii | 88.44 (10) |
N1—Zn1—N5 | 77.78 (9) | N1—Zn1—N3iii | 91.63 (11) |
N1—Zn1—N3ii | 88.37 (11) | N5—Zn1—N3iii | 91.56 (10) |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1/2, −y+1/2, −z+1; (iii) −x+3/2, y+1/2, z. |
Recently, several complexes of 5-(pyrimidin-2-yl)tetrazolato ligand have been reported containing iron(II), cobalt(II), nickel(II), zinc(II) and cadmium(II) metal ion [Rodríguez & Colacio (2006); Rodríguez et al., 2005, 2007; Liu & Fan, 2007]. The title compound poly[5-(pyrimidin-2-yl)tetrazolato]zinc(II)] (I, Fig. 1 and 2) is isostructural with the iron(II), cobalt(II) and nickel(II) analogs. The structure features a two-dimensional square-grid-like network with the grid side length of 6.315 (3) Å, in which ZnII atom is located on an inversion centre and exhibits a distorted octahedral coordination geometry around by six N atoms. Each ZnII atom coordinates to four ligands and each ligand bonds to two ZnII atoms through one of the pyrimidyl N atoms and the 1-positon tetrazole N for one, and one 3-position tetrazole N atom for the other. Selected bond distances and angles are listed in Table 1. In addition, in crystal structure such two-dimensional layers stack in an ABAB sequence.