[1,3-Bis(2-ethoxy­phen­yl)triazenido]chloridomercury(II)

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

Chlorido[1-(2-eth­oxy­phen­yl)3-(4-nitro­phen­yl)triazenido]mercury(II)

In the title compound, [Hg(C14H13N4O3)Cl], the HgII atom is four-coordinated by one O atom and two N atoms from a tridentate 1-(2-eth­oxy­phen­yl)-3-(4-nitro­phen­yl)triazenide ligand and one terminal chloride ion in a distorted square-planar geometry. In the crystal structure, the mononuclear complexes are linked into pairs through C—H⋯O and C—H⋯Cl hydrogen bonds as well as π–π and C—H⋯π stacking inter­actions. In addition, weak Hg–μ6-arene π-inter­actions [mean distance of 3.667 (2) Å] are present between these dimers. The π–π stacking inter­actions are between aromatic rings with a centroid–centroid distance of 3.884 (2) Å. Moreover, edge-to-face inter­actions are present between eth­oxy CH groups and aromatic rings with H⋯π distances of 2.81 Å

1,3-Bis(2-ethoxy­phen­yl)triazene

The title compound, C16H19N3O2, exhibits a trans geometry about the N=N double bond in the triazene unit in the solid state, and individual mol­ecules are close to planar with r.m.s. deviations from planarity of 0.065 Å and 0.242 Å for the two independent molecules in the asymmetric unit. Distinct inter­molecular N—H⋯N hydrogen bonds lead to the formation of dimers with an R 2 2(8) graph-set motif. The steric demands of the eth­oxy groups in the ortho position prevent a coplanar arrangement of the two mol­ecules in the dimers and these instead consist of two inter­locked mol­ecules that are related by a non-crystallographic pseudo-twofold rotation axis. Weak C—H⋯π inter­actions between the CH groups and the aromatic phenyl rings also occur

trans-Bis[1,3-bis­(2-methoxy­phen­yl)triazenido]dimethano­lcadmium(II)

In the title compound, [Cd(C14H14N3O2)2(CH3OH)2], each cadmium(II) center is six-coordinated by an N atom and an O atom of two 1,3-bis­(2-methoxy­phen­yl)triazene ligands and by the O atoms of two methanol mol­ecules. The distorted octa­hedral coordination geometry of the Cd atom has two N and two O atoms in the equatorial plane, and two O atoms in axial positions. The complex is stabilized by intra­molecular O—H⋯O and O—H⋯N hydrogen bonds. In the crystal structure the complexes are linked into chains via inter­molecular C—H⋯π stacking inter­actions. One of the methanol C atoms is disordered with ouccupancies of 0.7:0.3

1-(3,5-Dichloro­phen­yl)-3-(2-meth­oxy­phen­yl)triaz-1-ene

The title mol­ecule, C13H11Cl2N3O, is almost planar and adopts a trans conformation with respect to the –N=N– bond; the dihedral angle between the rings is 3.47 (2)°. The N—N bond lengths indicate the presence of single- and double-bond characters and hence the –N=N—NH– moiety. In the crystal, inversion dimers linked by pairs of N—H⋯Cl hydrogen bonds occur, and C—H⋯π and π–π stacking interactions are also observed

3-(2-Eth­oxy­phen­yl)-1-(3-nitro­phen­yl)triaz-1-ene

The title compound, C14H14N4O3, exhibits a trans geometry about the N=N double bond in the triazene unit. The mol­ecule is approximately planar (r.m.s. deviation = 0.044 Å for all non-H atoms). An intra­molecular N—H⋯O hydrogen bond occurs. In the crystal, C—H⋯N hydrogen bonds lead to the formation of dimers which are, in turn, connected to each other by C—H⋯O hydrogen bonds, forming infinite chains of R 2 2(8) graph-set motif

4-[(4-Bromo­phen­yl)diazen­yl]-2-eth­oxy­aniline

The title compound, C14H14BrN3O, exhibits a trans geometry about the –N=N– double bond. The dihedral angle between the benzene rings is 24.01 (5)°. An intra­molecular N—H⋯O hydrogen bond occurs. In the crystal, inter­molecular N—H⋯N hydrogen bonds between the amine groups lead to the formation of a C(8) polymeric chain along [101]

1,3-Bis(2-ethoxyphenyl)triazene methanol 0.33-solvate

There are three independent molecules of 1,3-bis(2-ethoxyphenyl)triazene and a molecule of methanol in the asymmetric unit of the title compound, C16H19N3O2·0.33CH3OH. Two molecules related by a non-crystallographic pseudo-twofold rotation axis are linked via distinct intermolecular N—H...N hydrogen bonds, leading to the formation of a dimer with an R22(8) graph set. The third molecule is connected to the methanol molecule by O—H...N and N—H...O hydrogen bonds. There are a number of weak C—H...π interactions, with H...π distances ranging from 2.74 to 2.89 Å between the C—H groups and the aromatic benzene rings