Triazene

About: Triazene is a research topic. Over the lifetime, 759 publications have been published within this topic receiving 8714 citations. The topic is also known as: Triazene cleavage & 1-triazene.

Certain novel substituted tetrahydro-oxothiazolo-triazolium compounds useful as herbicides

Abstract: A process for inhibiting plant growth comprising contacting a plant or its growth area with an effective amount of certain para-halophenyl substituted triazolines. A series of certain novel substituted tetrahydro-oxothiazolo-triazolium compounds useful as herbicides. A novel process for preparing 3-phenyl-4-oxo-1,2,3-triazoline by contacting benzenediazoniumchloride and an α-amino carboxylic acid and cyclodehydrating the triazene produced using acetic anhydride and pyridine.

Novel 1-(4-chlorophenyl)-3-(2-ethoxyphenyl)triazene ligand: Synthesis, X-ray crystallographic studies, spectroscopic characterization and DFT calculations

Abstract: In the present work, a combined theoretical and experimental investigation on the properties of 1-(4-chlorophenyl)-3-(2-ethoxyphenyl)triazene is reported. The optimized geometry was calculated by B3LYP method using 6-311++G(2d,p) as a large basis set. The FT-IR spectrum was calculated at this level of theory, and was interpreted in terms of potential energy distribution (PED) analysis. The scaled theoretical frequencies were in line with the experimental ones. Furthermore, natural bond orbital (NBO) and atoms in molecules (AIM) theories were used to characterize intra-molecular hydrogen bond. The low value of charge transfer and the absence of bond critical point between O···HN show that there is not intra-molecular hydrogen bond.

A molecular recognition event in the reaction of a diazonium salt with N, N-dimethylethylenediamine

Abstract: Diazotization of p-aminobenzonitrile and coupling of the resulting diazonium salt with N,N-dimethylethylenediamine affords a novel material that has been shown by X-ray crystallography to be a cocrystal (3) of the pentaazadiene (1) and the diaryltriazene (2). Crystal data: monoclinic, space group P21/c, a = 9.363(5), b = 21.509(3), c = 15.862(5) A, β = 98.86(5)°, V = 3156.3(18) A3, Z = 4, Rw = 0.035, Rint = 0.037. The pairing of the two molecules 1 and 2 appears to represent a unique molecular recognition event involving a combination of hydrogen bonding and π–π stacking. The crystal structure shows that the N–H of the triazene is within hydrogen-bonding distance of the tertiary nitrogen atom in the alkyl side-chain of the pentazadiene; furthermore, the benzene rings of the triazene and the pentazadiene are stacked off-register and separated by 3.53 A. The formation of the components of the cocrystal is rationalised in terms of the formation and decomposition of the 1-aryl-3-alkyltriazene, Ar–N=N–NH–CH2CH2NH2.

3-(4-Acetylphenyl)-1-(4-nitrophenyl)triazene.

Abstract: The crystal structure of the title compound, C(14)H(12)N(4)O(3), shows that the stereochemistry about the N=N double bond of the N=N-N(H) moiety is trans. The whole molecule is almost planar (r.m.s. deviation = 0.0654 A), the interplanar angle between the phenyl rings being 0.7 (1) degrees and the largest interplanar angle being that between the phenyl ring and the nitro group of the 4-nitrophenyl substituent [11.5 (2) degrees ]. Intermolecular N-H.O interactions between molecules related by translation give rise to chains along the [110] and [1-10] directions, and these chains are held together by N.O pi-pi interactions. An unequal distribution of the double-bond character among the N atoms suggests a delocalization of pi electrons over the diazoamine group and the adjacent aryl substituents.

Acylation of 1-methoxy-3-methyl-1-triazene 2-oxide

Abstract: Chlorides and anhydrides of carboxylic (including dicarboxylic) acids react with salts of 1-methoxy-3-methyl-1-triazene 2-oxides to give the corresponding 3-acyl-1-methoxy-3-methyl-1-triazene 2-oxides.