(4′-Chloro-2,2′:6′,2′′-terpyridine-κ3 N,N′,N′′)bis(nitrato-κO)zinc(II)

The coordination of the ZnII central atom in the title complex, [Zn(C15H10ClN3)(NO3)2], exists in a distorted trigonal bipyramidal geometry defined by the nitrogen atoms of the 4-chloroterpyridine ligand and two monodentate nitrate groups.

data reports centroid-to-centroid (CgÁ Á ÁCg) distances ranging from 3.571 (1) to 3.786 (1) Å as shown in Fig. 3, and offset distances ranging from 1.073 to 1.637 Å . The CgÁ Á ÁCg distance is influenced by the relative positioning of the chlorine atom of the terpyridine unit.

Synthesis and crystallization
Solid 4 0 -chloro-2,2 0 :6 0 ,2 00 -terpyridine (0.100 g, 0.374 mmol) was added to ZnCl 2 (0.051 g, 0.37 mmol) in 50.0 ml of methanol and the resulting solution was stirred without heating for 2 h. AgNO 3 (0.127 g, 0.748 mmol) was added to the clear solution Perspective view of the packing structure of the title complex along the crystallographic b axis; H atoms are omitted for clarity.

Figure 3
Capped sticks representation of the title molecule showing the CgÁ Á ÁCg distances between pyridine rings; H atoms are omitted for clarity Table 1 Selected geometric parameters (Å , ).

Figure 1
The molecular structure of the title compound with displacement ellipsoids drawn at the 50% probability level; H atoms are omitted for clarity. Computer programs: CrystalClear-SM Expert (Rigaku, 2010), SHELXS97 and SHELXL97 (Sheldrick, 2008), ORTEPII (Johnson, 1976), Mercury (Macrae et al., 2020), DIAMOND (Brandenburg, 2020) and publCIF (Westrip, 2010). and stirred without heating for 45 minutes. After the removal of AgCl by filtration using a 0.45 mm PTFE syringe filter, the resulting clear solution was rotovaped to dryness. The dried product was then redissolved in 10.0 ml of acetonitrile and the clear solution was used to grow crystals by vapor diffusion with diethyl ether at 278 K.

Refinement
Crystal data, data collection and structure refinement details are summarized in Table 2.

data-1
IUCrData (2020). 5, x201344 full crystallographic data where P = (F o 2 + 2F c 2 )/3 (Δ/σ) max = 0.001 Δρ max = 0.75 e Å −3 Δρ min = −0.91 e Å −3 Special details Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

data-2
IUCrData (2020). 5, x201344 Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > 2sigma(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger. All C-bound H-atoms were placed on calculated positions and were refined with U iso (H) = 1.2U eq (C).