The formation of protective layers on copper, zinc and copper-zinc (Cu-10Zn and Cu-40Zn) alloys at open circuit potential in aerated, near neutral 0.5 M NaCl solution containing benzotriazole (BTA) was studied using potentiodynamic measurements, electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS). The addition of benzotriazole affects the dissolution of the m...

Benzotriazole (BTR) and benzothiazole (BTH) derivatives are used in a wide variety of industrial and consumer products and have been reported to occur in the environment. Owing to a lack of analytical methods, human exposure to BTRs and BTHs is still unknown. Therefore, a liquid chromatography-electrospray ionization tandem mass spectrometry (LC–ESI(+)MS/MS) method was developed for simultaneou...

A facile and mild macrolactonization reaction of ω-hydroxy acids was developed based on the transesterification of benzotriazole esters. Treatment of ω-hydroxy acids with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and 1-hydroxy benzotriazole (HOBT) in chloroform provided macrolactones in excellent yields. The reactions were performed under basic, neutral and acidic conditions using N,...

In the title centrosymmetric binuclear Ag(I )complex, [Ag(2)(C(12)H(10)N(4))(2)](ClO(4))(2), each Ag(I) center is two-coordinated by one pyridine and one benzotriazole N-donor atom of two inversion-related 1-(2-pyridylmeth-yl)-1H-benzotriazole (L) ligands. This forms a unique box-like cyclic dimer with an intra-molecular Ag⋯Ag separation of 4.479 (2) Å. Inter-molecular C-H⋯O hydrogen-bonding in...

The title compound, C(10)H(11)N(3)O(2), was synthesized by the reaction of 1H-benzotriazole with ethyl 2-chloro-acetate in ethanol. The non-H atoms, excluding the benzotriazol-1-yl group, are almost coplanar (r.m.s. deviation of the non-H atoms = 0.0409 Å). The dihedral angle formed between this plane and the benzotriazole ring is 79.12 (5)° In the crystal, weak inter-molecular C-H⋯N and C-H⋯O ...

In the title mol-ecule, C(16)H(15)N(3)O(2), the benzotriazole fragment and the benzene ring form a dihedral angle of 75.02 (1)°. In the crystal structure, mol-ecules related by translation along the a axis are linked into chains via weak C-H⋯π inter-actions.

1,2,3-Triazoles have come to the forefront as compounds of import in a vast number of applications. The fundamental properties of these species, however, remain largely unknown. Herein, the gas phase properties of 4-phenyl-1,2,3-triazole, benzotriazole, and a series of 1-phenylbenzotriazoles are described. Proton affinity and acidity values are computed and measured. Furthermore, ion-molecule r...

In the crystal structure of the title coordination compound, [Ag(NO(3))(C(14)H(11)N(3)O(2))(2)], the Ag(I) atom is four-coordinated in a distorted tetra-hedral geometry by two O atoms from one nitrate group and two N atoms from two different 1-[(benzo-yloxy)meth-yl]-1H-1,2,3-triazole ligands. In the complex, the two coordinated benzotriazole rings rings are nearly perpendicular, the dihedral an...

In the title hydrate, C13H11N3O·H2O, the benzotriazole ring system is planar (r.m.s. deviation = 0.007 Å) and is almost orthogonal to the phenyl ring to which it is linked by a methyl-ene group, forming a dihedral angle of 81.87 (15)°. In the crystal, mol-ecules are linked into chains along [001] by O-H⋯O hydrogen bonds. The chains are consolidated into a three-dimensional architecture by C-H⋯O...

The dinuclear title complex, [Cd(2)I(4)(C(12)H(13)N(5))(2)], lies on a crystallographic center of inversion. The Cd(II) atom is four-coordinated by two N atoms from two 1-[(2-ethyl-1H-imidazol-1-yl)meth-yl]-1H-benzotriazole (bmei) ligands and two terminal I atoms in a distorted tetra-hedral coordination environment. The Cd(II) atoms are connected to each other by two bridging bmei ligands. The ...