Analysis of Pyridine, Picoline and Lutidine’s Adsorption Behavior on The Al (111)-lattice

The reactivity and adsorption behavior of five organic inhibitors of pyridine and its derivatives of 2-picoline, 3-picoline, 4-picoline, and 2,4-lutidine at the Al(111) lattice in hydrochloric acid was studied by the principle of the HF and B3LYP level using the 6-31G and LANL2DZ basis sets from the program package gaussian 03. The compound was adsorbed on the metal lattice based on the calculated results, mainly in their protonated forms. In the Al (111)-lattice, the charge is transferred to the inhibitor, and the organic inhibitor is adsorbed at the Al (111)-lattice in an inclined state. The quantum chemical calculations of molecular reactivity show that the frontier orbitals of the four additives are distributed around the nitrogen atom of the pyridine ring, the aluminum atom of Al (111)-lattice, and active electrophilic centers are located on the nitrogen atoms of the pyridine ring. All five molecules were adsorbed with the chemical adsorption on the Al (111)-lattice, and the order of adsorption was 2-picoline>2, 4-lutidine> 4-picoline> 3-picoline> pyridine. The N atoms of four derivatives form N-Al bonds with the Al atoms of the Al (111)-lattice, which makes derivatives stably adsorb on the Al lattice.

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First Principle Analysis on Pyridine Amide Derivatives’ Adsorption Behavior on the Pt (111) Surface

Crystals ◽

10.3390/cryst11020098 ◽

2021 ◽

Vol 11 (2) ◽

pp. 98

Author(s):

Guocai Tian ◽

Huanhuan Du ◽

Hongmei Zhang

Keyword(s):

Nitrogen Atom ◽

Oxygen Atom ◽

Pyridine Ring ◽

Adsorption Behavior ◽

Protective Film ◽

First Principle ◽

Active Centers ◽

Amide Derivatives ◽

Molecular Reactivity ◽

C And N

The reactivity and adsorption behavior of three pyridine amide additives (Nicotinamide, Pyridine-2-formamide and Pyridine-4-formamide) on the Pt (111) surface was studied by First principle methods. The quantum chemical calculations of molecular reactivity show that the frontier orbitals of the three additives are distributed around the pyridine ring, oxygen atom of carbonyl and nitrogen atom of amino, and the nucleophilic and electrophilic active centers are located on the nitrogen atoms of pyridine ring, oxygen atom of carbonyl and nitrogen atom of amino. All three molecules were adsorbed with the chemical adsorption on the Pt (111) surface, and the order of adsorption was Nicotinamide > Pyridine-2-formamide > Pyridine-4-formamide. The C and N atoms of three derivatives forms C-Pt and N-Pt bonds with the Pt atoms of the Pt (111) surface, which makes derivatives stably adsorb on the Pt surface and form a protective film. The protective film inhibits the diffusion of atoms to the surface of the growth center, so as to inhibit the formation of dendrite and obtain a smooth aluminum deposition layer.

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Synthesis of derivatives of pyrano[3,4-c][1,2,4]triazolo-[4,3-a]pyridine and 8-(pyrazol-1-yl)pyrano[3,4-c]pyridine through pyridine ring rearrangement

Chemistry of Heterocyclic Compounds ◽

10.1007/s10593-017-2009-9 ◽

2016 ◽

Vol 52 (12) ◽

pp. 1078-1086 ◽

Cited By ~ 5

Author(s):

Ervand G. Paronikyan ◽

Shushanik Sh. Dashyan ◽

Nune S. Minasyan ◽

Grachya M. Stepanyan ◽

Armen G. Ayvazyan ◽

...

Keyword(s):

Pyridine Ring ◽

Derivatives Of

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The antiseptic and trypanocidal action of certain styryl and anil benzthiazole derivatives

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character ◽

10.1098/rspb.1931.0024 ◽

1931 ◽

Vol 108 (755) ◽

pp. 119-129 ◽

Cited By ~ 2

Keyword(s):

Pyridine Ring ◽

Membered Ring ◽

Present Series ◽

Quinoline Derivatives ◽

Present Communication ◽

Quinoline Series ◽

Derivatives Of

In view of the powerful antiseptic action of certain anil quinoline compounds (Browning, Cohen, Ellingworth and Gulbransen, 1926) and the trypanocidal action of these and especially of some styryl quinoline derivatives (Browning, Cohen, Ellingworth and Gulbransen, 1929), it was thought desirable to examine the action of similar compounds containing other heterocyclic nuclei. The present communication is concerned with a number of derivatives of benzthiazole, in which the pyridine ring of the quinoline group is replaced by a five-membered ring containing both nitrogen and sulphur. Antiseptic Action . Antiseptic power was estimated as in previous communications (Browning, Cohen, Elingworth and Gulbransen, 1926, 1928). Throughout the range of the anil benzthiazole compounds examined the antiseptic activity is considerably lower than that of the corresponding quinoline compounds. The styryl compounds tend also to be weak in their antiseptic action and in this respect resemble the styryl quinoline series, but in general they are not inferior to the latter in potency. Frequently in the present series of compounds the irregularities in action, previously commented upon, were observed in marked degree.

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Synthesis of azo disperse dyes containing pyridine ring for dyeing polyester and polyacrylic fibres

Pigment & Resin Technology ◽

10.1108/prt-01-2015-0011 ◽

2016 ◽

Vol 45 (1) ◽

pp. 10-17 ◽

Cited By ~ 8

Author(s):

A.A. Fadda ◽

N.S. Abbas

Keyword(s):

Pyridine Ring ◽

Cycloaddition Reaction ◽

Disperse Dyes ◽

Ethyl Vinyl Ether ◽

Spectroscopic Techniques ◽

Ethyl Vinyl ◽

Content Type ◽

Dyeing Performance ◽

Azo Disperse Dyes ◽

Derivatives Of

Purpose – The purpose of this paper is to discuss the synthesis of new azo disperse dyes containing pyridine ring for dyeing acetate polyester and other fibres. Design/methodology/approach – Cycloaddition reaction of 3-formylchromone (Compound 1) with ethyl vinyl ether (Compound 2) afforded 3-ethoxy-4,4a-dihyro-3H,10H-pyrano[4,3-b]chromen-10-one (Compound 3). Reaction of 3 with aqueous ammonium sulphite in ethanol furnishes 3-(2-hydroxybenzoyl)pyridine (Compound 5). Compound 5 was fully characterised by spectroscopic techniques. Ten arylazo derivatives of Compound 6 have been prepared for use as dyestuffs. The effect of the nature and orientation of substituents in the diazonium component on the colour of azo dyes is discussed. Dyeing performance of the dyes on different fibres has also been assessed. Findings – Most of the dyes showed good affinity to polyester fibres. On the other hand, polyacrylic fibres were only stained to weak shades. Originality/value – No details regarding the synthesis and dyeing performance of such dyes are reported before in the literature.

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