Bao-Tsan Ko

Bis{1-[(E)-(2-methyl-phen-yl)diazen-yl]-2-naphtho-lato}palladium(II).

In the title compound, [Pd(C17H13N2O)2], the PdII atom is tetracoordinated by two N atoms and two O atoms from two bidentate methylphenyldiazenylnaphtolate ligands, forming a square-planar complex. The two N atoms and two O atoms around the PdII atom are trans to each other (as the PdII atom lies on a crystallographic inversion centre) with O—Pd—N bond angles of 89.60 (11) and 90.40 (11)°. The distances between the PdII atom and the coordinated O and N atoms are 1.966 (3) and 2.009 (3) Å, respectively.

Bis[2-(2H-benzotriazol-2-yl)-4-methylphenolato]palladium(II).

In the title complex, [Pd(C13H10N3O)2], the PdII atom is tetracoordinated by two N atoms and two O atoms from two bidentate 2-(2H-benzotriazol-2-yl)-4-methylphenolate ligands, forming a square-planar environment. The asymmetric unit contains one half molecule in which the Pd atom lies on a centre of symmetry.

2-(2H-Benzotriazol-2-yl)-6-[(diethyl­amino)meth­yl]-4-methyl­phenol

In the title compound, C18H22N4O, the dihedral angle between the planes of the benzotriazol unit and the phenyl ring of the phenoxy group is 6.4 (2)°. There is an intramolecular O—H⋯N hydrogen bond between the phenol and benzotriazol groups.

Bis{1-[(E)-o-tolyl­diazen­yl]-2-naphtho­l­ato}copper(II)

In the title complex, [Cu(C17H13N2O)2], the CuII atom is tetracoordinated by two N atoms and two O atoms from two bidentate 1-[(E)-o-tolyldiazenyl]-2-naphtholate ligands, forming a slightly distorted square-planar environment. The two N atoms and two O atoms around the CuII atom are trans to each other, with an O—Cu—O bond angle of 177.00 (9)° and an N—Cu—N bond angle of 165.63 (10)°. The average distances between the CuII atom and the coordinated O and N atoms are 1.905 (2) and 1.995 (2)Å, respectively.

Bis[μ-2-(2H-benzotriazol-2-yl)-4-methyl-phenolato]bis-[dimethyl-aluminium(III)].

The title complex, [Al2(CH3)4(C13H10N3O)2], is dimeric, bridged through the O atoms of the phenolate anions. The asymmetric unit contains one half of the molecule and there is a crystallographic inversion centre in this molecule. Each Al atom is pentacoordinated by one N atom and two bridging O atoms of two N,O-bidentate benzotriazolylphenolate ligands and by two C atoms from two methyl groups, forming a distorted trigonal–bipyramidal environment.

(Acetato-κO)(2-{[2-(dimethyl­amino)­ethyl­imino](phen­yl)meth­yl}-5-methoxy­phenolato-κ3N,N′,O1)copper(II)

The CuII atom in the title complex, [Cu(C18H21N2O2)(C2H3O2)], is tetracoordinated by two N atoms and two O atoms, of which one O atom is attributed to the acetate group and the other atoms are from the tridentate salicylideneiminate ligand, forming a slight distorted square-planar environment. The other acetate O atom exhibits a very weak intramolecular interaction toward the Cu atom, the Cu—O distance of 2.771 (2) Å being shorter than the van der Waals radii for Cu and O atoms (2.92 Å). Furthermore, there are weak intermolecular interactions, in which the bonding O atom of the acetate group can bridge to the Cu atom of another complex, and the distance of 2.523 (2) Å is about 0.4 Å shorter than the van der Waals Cu—O distance in other crystal structures.

(E)-2-(2H-Benzotriazol-2-yl)-4-methyl-6-(phenyl-imino-meth-yl)phenol.

In the title compound, C20H16N4O, the non-H atoms of the benzotriazole ring system and those of the methylphenol group are essentially coplanar, with an r.m.s. deviation of 0.004 (2) Å. The mean plane of these atoms forms a dihedral angle of 60.9 (2)° with the phenyl ring. There is an intramolecular O—H⋯N hydrogen bond between the phenol and benzotriazole groups.

(E)-N-[2-(Benzyl­iminometh­yl)phen­yl]-2,6-diisopropyl­aniline

The molecular conformation of the title compound, C26H30N2, is reinforced by an intramolecular N—H⋯N hydrogen bond, resulting in an almost planar [mean deviation of 0.023 (2) Å] S(6) ring. The dihedral angles between the central benzene ring and the terminal unsubstituted and substituted aromatic rings are 64.45 (9) and 89.40 (8)°, respectively.

Bis[2-(2H-benzotriazol-2-yl)-4-methyl-6-(phenyl-imino-methyl-κN)phenolato-κO]palladium(II).

In the title complex, [Pd(C20H15N4O)2], the PdII atom is tetracoordinated by two N atoms and two O atoms from two bidentate imine–benzotriazole phenolate ligands, forming a square-planar environment. The asymmetric unit contains two half-molecules in both of which the PdII atom lies on a centre of symmetry. The average distances between the PdII atom and the coordinated O and N atoms are 1.9831 (12) and 2.012 (2) Å, respectively.

2-(2-Meth­oxy-5-methyl­phen­yl)-2H-benzotriazole

In the title molecule, C14H13N3O, the dihedral angle between the mean planes of the benzotriazole ring system and the benzene ring is 57.8 (2)°.