Enchev, Venelin G: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

1

Fast intramolecular proton transfer in 2-(hydroxyaminomethylidene)-indan-1,3-dione

Venelin Enchev, Isaac Abrahams, Silvia Angelova, Galya Ivanova

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

2005

Language:

english

File:

PDF, 210 KB

english, 2005

2

Computational insight on the chalcone formation mechanism by the Claisen-Schmidt reaction

Enchev, Venelin, Mehandzhiyski, Aleksandar Y.

Journal:

International Journal of Quantum Chemistry

Year:

2017

Language:

english

File:

PDF, 1003 KB

english, 2017

3

Synthesis, cytotoxicity, antibacterial and antitumor activity of platinum(II) complexes of 3-aminocyclohexanespiro-5-hydantoin

Daniel Kushev, Galina Gorneva, Venelin Enchev, Emilya Naydenova, Julita Popova, Svetoslav Taxirov, Liliana Maneva, Konstantin Grancharov, Nadejda Spassovska

Journal:

Journal of Inorganic Biochemistry

Year:

2002

Language:

english

File:

PDF, 581 KB

english, 2002

4

Solid-State Tautomerism in 2-Carboxyindan-1,3-dione

Enchev, Venelin, Angelova, Silvia, Rogojerov, Marin, Monev, Valentin, Wawer, Iwona, Tkaczyk, Michał, Kostova, Kalina

Journal:

Journal of Physical Chemistry A

Year:

2011

Language:

english

File:

PDF, 3.20 MB

english, 2011

5

Intramolecular Hydrogen-Bonding Interactions in 2-Nitrosophenol and Nitrosonaphthols: Ab Initio, Density Functional, and Nuclear Magnetic Resonance Theoretical Study

Shchavlev, Andrew E., Pankratov, Alexei N., Enchev, Venelin

Journal:

Journal of Physical Chemistry A

Year:

2007

Language:

english

File:

PDF, 687 KB

english, 2007

6

Ab initio investigation of the structure and nonlinear optical properties of five-membered heterocycles containing sulfur

Milena Spassova, Venelin Enchev

Journal:

Chemical Physics

Year:

2004

Language:

english

File:

PDF, 202 KB

english, 2004

7

Ab initio study of 2,4-substituted azolidines. I. Tautomerism

Silvia Angelova, Venelin Enchev, Nadezhda Markova, Pavletta Denkova, Kalina Kostova

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

2004

Language:

english

File:

PDF, 125 KB

english, 2004

8

Water-assisted proton transfer in formamide, thioformamide and selenoformamide

Nadezhda Markova, Venelin Enchev

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

2004

Language:

english

File:

PDF, 474 KB

english, 2004

9

Theoretical and Spectroscopic Study of 2-Substituted Indan-1,3-diones: A Coherent Picture of the Tautomeric Equilibrium

Angelova, Silvia, Enchev, Venelin, Kostova, Kalina, Rogojerov, Marin, Ivanova, Galya

Journal:

Journal of Physical Chemistry A

Year:

2007

Language:

english

File:

PDF, 380 KB

english, 2007

10

Spectroscopic and quantum chemical study of the structure of a new paramagnetic dimeric palladium(II,III) complex with creatine

Mariana Mitewa, Venelin Enchev, Tatyana Bakalova

Journal:

Journal of Molecular Structure

Year:

2002

Language:

english

File:

PDF, 99 KB

english, 2002

11

Tautomerism in 2,2′-bipyridyl-3,3′-diol

Journal:

International Journal of Quantum Chemistry

Year:

1996

Language:

english

File:

PDF, 500 KB

english, 1996

12

Does tautomeric equilibrium exist in ortho-nitrosonaphthols?

Galya Ivanova, Venelin Enchev

Journal:

Chemical Physics

Year:

2001

Language:

english

File:

PDF, 132 KB

english, 2001

13

Modeling the Interaction of Small Organic Molecules with Biomacromolecules (the Oasis Approach). V. Toxicity of Phenols to Algae “Lemna Minor”

Ovanes G. Mekenyan, Danail G. Bonchev, Venelin G. Enchev

Journal:

Molecular Informatics

Year:

1988

Language:

english

File:

PDF, 589 KB

english, 1988

14

Chemical evolution: from formamide to nucleobases and amino acids without the presence of catalyst

Enchev, Venelin, Angelov, Ivan, Dincheva, Ivayla, Stoyanova, Nina, Slavova, Sofia, Rangelov, Miroslav, Markova, Nadezhda

Journal:

Journal of Biomolecular Structure and Dynamics

Year:

2020

File:

PDF, 2.66 MB

2020

15

Oxo−Hydroxy Tautomerism of 5-Fluorouracil: Water-Assisted Proton Transfer

Markova, Nadezhda, Enchev, Venelin, Timtcheva, Iliana

Journal:

Journal of Physical Chemistry A

Year:

2005

Language:

english

File:

PDF, 335 KB

english, 2005

16

Selfâcatalytic mechanism of prebiotic reactions: From formamide to purine bases

Slavova, Sofia, Enchev, Venelin

Journal:

International Journal of Quantum Chemistry

Year:

2020

File:

PDF, 7.78 MB

2020

17

Methodology for deriving quantitative structure-retention relationships in gas chromatography

Ovanes Mekenyan, Neno Dimov, Venelin Enchev

Journal:

Analytica Chimica Acta

Year:

1992

Language:

english

File:

PDF, 486 KB

english, 1992

18

Quantum chemical and spectroscopic study of the structure of 2-acetylindan-1,3-dione complexes with metal(II) ions

Venelin Enchev, Anife Ahmedova, Galya Ivanova, Iwona Wawer, Neyko Stoyanov, Mariana Mitewa

Journal:

Journal of Molecular Structure

Year:

2001

Language:

english

File:

PDF, 259 KB

english, 2001

19

Structure of six- and seven-membered cyclic- β-diketones and their metal(II) complexes

Margarita Kashchieva, Neyko Stoyanov, Venelin Enchev, Stoyan Minchev, Panayot R. Bontchev, Mariana Mitewa

Journal:

Year:

1997

Language:

english

File:

PDF, 391 KB

english, 1997

20

Copper(II) Complexes of Spirohydantoins. Synthesis, Quantum-Chemical, and Spectroscopic Study

Venelin Enchev, Neyko Stoyanov, Veska Mateva, Julita Popova, Margarita Kashchieva, Boris Aleksiev, Mariana Mitewa

Journal:

Structural Chemistry

Year:

1999

Language:

english

File:

PDF, 328 KB

english, 1999

21

A model system with intramolecular hydrogen bonding: Effect of external electric field on the tautomeric conversion and electronic structures

Enchev, Venelin, Monev, Valentin, Markova, Nadezhda, Rogozherov, Marin, Angelova, Silvia, Spassova, Milena

Journal:

Computational and Theoretical Chemistry

Year:

2013

Language:

english

File:

PDF, 1.79 MB

english, 2013

22

Excited state proton transfer in 3,6-bis(4,5-dihydroxyoxazo-2-yl)benzene-1,2-diol

Enchev, Venelin, Markova, Nadezhda, Stoyanova, Malinka, Petrov, Petar, Rogozherov, Marin, Kuchukova, Nadya, Timtcheva, Ilijana, Monev, Valentin, Angelova, Silvia, Spassova, Milena

Journal:

Chemical Physics Letters

Year:

2013

Language:

english

File:

PDF, 1.50 MB

english, 2013

23

Structure of the symmetric monooxime of 1,2,3-indantrione in gas, solution and solid states

Galya Ivanova, Isaac Abrahams, Venelin Enchev

Journal:

Journal of Molecular Structure

Year:

2002

Language:

english

File:

PDF, 188 KB

english, 2002

24

Ab initio quantum chemical and NMR study of the symmetric monooximes of 1,2,3-phenalenetrione and 1,2,3-indantrione

Venelin Enchev, Galya Ivanova, Angel Ugrinov, Georgi D. Neykov, Stoyan Minchev, Neyko Stoyanov

Journal:

Journal of Molecular Structure

Year:

1998

Language:

english

File:

PDF, 482 KB

english, 1998

25

Tautomerism of N-unsubstituted pyrazolones (hydroxypyrazoles): MNDO and MNDO + CI study of C-substituted tautomers

Venelin Enchev, Georgi D. Neykov

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

1992

Language:

english

File:

PDF, 940 KB

english, 1992

26

Ab Initio Study of 2,4-Substituted Azolidines. II. Amino−Imino Tautomerism of 2-Aminothiazolidine-4-one and 4-Aminothiazolidine-2-one in Water Solution

Enchev, Venelin, Markova, Nadezhda, Angelova, Silvia

Journal:

Journal of Physical Chemistry A

Year:

2005

Language:

english

File:

PDF, 640 KB

english, 2005

27

Does tautomeric equilibrium exist in 4-nitroso-5-pyrazolones?

Venelin Enchev, Silvia Angelova

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

2009

Language:

english

File:

PDF, 197 KB

english, 2009

28

Tautomeric Equilibria of 5-Fluorouracil Anionic Species in Water

Markova, Nadezhda, Enchev, Venelin, Ivanova, Galya

Journal:

Journal of Physical Chemistry A

Year:

2010

Language:

english

File:

PDF, 3.71 MB

english, 2010

29

Ab Initio Investigation on the Second-Order Nonlinear Optical Responses in Keto−Enol Equilibria of Salicylideneanilines

Guillaume, Maxime, Champagne, Benoît, Markova, Nadezhda, Enchev, Venelin, Castet, Frédéric

Journal:

Journal of Physical Chemistry A

Year:

2007

Language:

english

File:

PDF, 246 KB

english, 2007

30

Selfâcatalytic mechanism of prebiotic reactions: II. From urea and glycinamide to hypoxanthine

Enchev, Venelin, Slavova, Sofia

Journal:

International Journal of Quantum Chemistry

Year:

2020

File:

PDF, 2.77 MB

2020

31

MNDO study of intermediates by anionic polymerization of ethylene oxide

Venelin Enchev, Nikolay Tyutyulkov, Ivan Panayotov, Nikolai Raevskii

Journal:

Macromolecular Rapid Communications

Year:

1990

Language:

english

File:

PDF, 175 KB

english, 1990

32

A Hybrid statistical mechanics-quantum chemical model for proton transfer in 5-azauracil and 6-azauracil in water solution

Markova, Nadezhda, Pejov, Ljupco, Enchev, Venelin

Journal:

International Journal of Quantum Chemistry

Year:

2015

Language:

english

File:

PDF, 598 KB

english, 2015

33

Anti-Herpes Simplex virus and antibacterial activities of Graptopetalum paraguayense E. Walther leaf extract: a pilot study

Zaharieva, Maya Margaritova, Genova-Kalоu, Petia, Dincheva, Ivayla, Badjakov, Ilian, Krumova, Stefka, Enchev, Venelin, Najdenski, Hristo, Markova, Nadezhda

Journal:

Biotechnology & Biotechnological Equipment

Year:

2019

Language:

english

File:

PDF, 1.26 MB

english, 2019

34

Influence of pH on the cis–trans isomerization of Valine-Proline dipeptide: An integrated NMR and theoretical investigation

Galya Ivanova, Boryana Yakimova, Silvia Angelova, Ivanka Stoineva, Venelin Enchev

Journal:

Journal of Molecular Structure

Year:

2010

Language:

english

File:

PDF, 809 KB

english, 2010

35

A semiempirical and ab initio MO study of the tautomers ofN-unsubstituted pyrazolones [hydroxy pyrazoles]

Venelin Enchev, Georgi D. Neykov

Journal:

Structural Chemistry

Year:

1992

Language:

english

File:

PDF, 540 KB

english, 1992

36

2-Methylthio-imidazolins: a rare case of different tautomeric forms in solid state and in solution

Enchev, Venelin, Markova, Nadezhda, Marinov, Marin, Stoyanov, Neyko, Rogojerov, Marin, Ugrinov, Angel, Wawer, Iwona, Pisklak, Dariusz Maciej

Journal:

Structural Chemistry

Year:

2017

Language:

english

File:

PDF, 2.33 MB

english, 2017

37

Syntheses and Structures of 2-(O-Acylhydroxyimino)-1,3-indandiones

Stoyan Minchev, Hinyu Nedev, Venelin Enchev

Journal:

European Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 157 KB

english, 1987

38

The chemistry of the processes involved in the production of lanthanide titanates by the polymerized-complex method

Todorovsky, Dimitr S, Getsova, Miroslava M, Milanova, Maria M, Kakihana, Masato, Petrova, Nikolina L, Arnaudov, Michail G, Enchev, Venelin G

Journal:

Canadian Journal of Chemistry

Year:

2007

File:

PDF, 783 KB

2007

39

Physicochemical characterization and in vitro behavior of daunorubicin-loaded poly(butylcyanoacrylate) nanoparticles

Margarita Simeonova, Galya Ivanova, Venelin Enchev, Nadezhda Markova, Mihail Kamburov, Christo Petkov, Aoife Devery, Robert O’Connor, Dermot Brougham

Journal:

Acta Biomaterialia

Year:

2009

Language:

english

File:

PDF, 795 KB

english, 2009

40

Excited state intramolecular proton transfer in 2-acetylindan-1,3-dione

Venelin Enchev, Snezhana Bakalova, Galya Ivanova, Neyko Stoyanov

Journal:

Chemical Physics Letters

Year:

1999

Language:

english

File:

PDF, 109 KB

english, 1999

41

Tautomerism of rhodanine

Venelin Enchev, Ivan Petkov, Sasho Chorbadjiev

Journal:

Structural Chemistry

Year:

1994

Language:

english

File:

PDF, 452 KB

english, 1994

42

Hybrid MC/QC simulations of water-assisted proton transfer in nucleosides. Guanosine and its analogue acyclovir

Markova, Nadezhda, Pejov, Ljupco, Stoyanova, Nina, Enchev, Venelin

Journal:

Journal of Biomolecular Structure and Dynamics

Year:

2016

Language:

english

File:

PDF, 2.13 MB

english, 2016

43

Tacticity of poly(butyl-α-cyanoacrylate) chains in nanoparticles: NMR spectroscopy and DFT calculations

Nadezhda Markova, Galya Ivanova, Venelin Enchev, Margarita Simeonova

Journal:

Structural Chemistry

Year:

2012

Language:

english

File:

PDF, 479 KB

english, 2012

44

Tautomeric and conformational equilibrium of 2-nitrosophenol and 9,10-phenanthrenequinonemonooxime: ab initio and NMR study

Venelin Enchev, Galya Ivanova, Neyko Stoyanov

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

2003

Language:

english

File:

PDF, 281 KB

english, 2003

45

Electronic structure and polarizabilities of some heterocycles: I. Hydroxypyrazoles and related systems

Georgi D. Neykov, Venelin Enchev, Valentin Monev, Ivo Kanev

Journal:

Molecular Engineering

Year:

1995

Language:

english

File:

PDF, 702 KB

english, 1995

46

Synthesis of trans/cis 4-substituted 3-furyl-2-phenethyltetrahydroisoquinolin-1-ones: conformation of the trans-4-(pyrrolidinylcarbonyl) derivative

Malinka P. Stoyanova, Silvia E. Angelova, Krasimir S. Kosev, Pavletta S. Denkova, Venelin G. Enchev, Mariana D. Palamareva

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 155 KB

english, 2006

47

Reaction of 2-acetyl-indane-1,3-dione with aniline - Schiff base or enamine?

Venelin Enchev, Galya Ivanova, Gordana Pavlović, Marin Rogojerov, Anife Ahmedova, Mariana Mitewa

Journal:

Journal of Molecular Structure

Year:

2003

Language:

english

File:

PDF, 273 KB

english, 2003

48

2-Carbamido-1,3-indandione – a Fluorescent Molecular Probe and Sunscreen Candidate

Enchev, Venelin, Angelov, Ivan, Mantareva, Vanya, Markova, Nadezhda

Journal:

Journal of Fluorescence

Year:

2015

Language:

english

File:

PDF, 2.48 MB

english, 2015

49

Green synthesis, structure and fluorescence spectra of new azacyanine dyes

Enchev, Venelin, Gadjev, Nikolai, Angelov, Ivan, Minkovska, Stela, Kurutos, Atanas, Markova, Nadezhda, Deligeorgiev, Todor

Journal:

Journal of Molecular Structure

Year:

2017

Language:

english

File:

PDF, 4.89 MB

english, 2017

50

Experimental and computational studies of the structure and vibrational spectra of 4-dimethylamino pyridinium-betaine of squaric acid

Tsonko M. Kolev, Bistra A. Stamboliyska, Denitsa Y. Yancheva, Venelin Enchev

Journal:

Journal of Molecular Structure

Year:

2004

Language:

english

File:

PDF, 149 KB

english, 2004

To build up a library is to create a life. It’s never just a random collection of books.

— Carlos María Domínguez

Official channel

Z-Library Desktop Launcher

Z-Library Since 2009 support@1delivery.pm

EnglishРусскийEspañolItalianoελληνικάاللغة العربيةBahasa IndonesiaBahasa Malaysiaहिन्दीDeutschFrançaisPortuguêsУкраїнськаPolski中文繁體中文日本語Tiếng ViệtAzərbaycan DiliՀայոց լեզուภาษาไทยTürk Diliქართველიবাংলাپښتوతెలుగుاردو한국어SrpskiБългарски