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1

14N NQR in the tetrazole family

Janez Pirnat, Janko Lužnik, Vojko Jazbinšek, Veselko Žagar, Janez Seliger, Thomas M. Klapötke, Zvonko Trontelj

Journal:

Chemical Physics

Year:

2009

Language:

english

File:

PDF, 536 KB

english, 2009

2

14N nuclear quadrupole resonance of some sulfa drugs

Robert Blinc, Janez Seliger, Aleksander Zidans˘ek, Veselko Žagar, Fani Milia, Hector Robert

Journal:

Solid State Nuclear Magnetic Resonance

Year:

2006

Language:

english

File:

PDF, 346 KB

english, 2006

3

New Methods for Detection of14N NQR Frequencies

Janez Seliger, Veselko Žagar

Journal:

Applied Magnetic Resonance

Year:

2012

Language:

english

File:

PDF, 339 KB

english, 2012

4

Electron density distribution in 2-nitro-5-methylimidazole derivatives studied by NMR–NQR double resonance

Jolanta N. Latosińska, Janez Seliger, Boleslaw Nogaj

Journal:

Magnetic Resonance in Chemistry

Year:

1999

Language:

english

File:

PDF, 40 KB

english, 1999

5

Application of 14N NQR to the study of piroxicam polymorphism

Zoran Lavrič, Janez Pirnat, Janko Lužnik, Janez Seliger, Veselko Žagar, Zvonko Trontelj, Stane Srčič

Journal:

Journal of Pharmaceutical Sciences

Year:

2010

Language:

english

File:

PDF, 433 KB

english, 2010

6

Correlation between proton transfer and 35Cl NQR frequency as well as molecular geometry of chloranilic acid in co-crystals with some organic bases

Tetsuo Asaji, Janez Seliger, Veselko Žagar, Hiroyuki Ishida

Journal:

Magnetic Resonance in Chemistry

Year:

2010

Language:

english

File:

PDF, 153 KB

english, 2010

7

17O quadrupole coupling in C–O–H⋯OC hydrogen bonds

Journal:

Chemical Physics

Year:

1998

Language:

english

File:

PDF, 146 KB

english, 1998

8

T1ϱ in nuclear quadrupole resonance: a theoretical study

Journal:

Solid State Nuclear Magnetic Resonance

Year:

1997

Language:

english

File:

PDF, 776 KB

english, 1997

9

17O NQR and 13C NMR study of hydrogen-bonded organic ferroelectric croconic acid

Janez Seliger, Janez Plavec, Primož Šket, Veselko Žagar, Robert Blinc

Journal:

physica status solidi (b)

Year:

2011

Language:

english

File:

PDF, 290 KB

english, 2011

10

Supramolecular synthon pattern in solid clioquinol and cloxiquine (APIs of antibacterial, antifungal, antiaging and antituberculosis drugs) studied by35Cl NQR,1H-17O and1H-14N NQDR and DFT/QTAIM

Jolanta Natalia Latosińska, Magdalena Latosińska, Marzena Agnieszka Tomczak, Janez Seliger, Veselko Žagar

Journal:

Journal of Molecular Modeling

Year:

2011

Language:

english

File:

PDF, 854 KB

english, 2011

11

A comparative study of the hydrogen-bonding patterns and prototropism in solid 2-thiocytosine (potential antileukemic agent) and cytosine, as studied by1H-14N NQDR and QTAIM/ DFT

Jolanta N. Latosińska, Janez Seliger, Veselko Žagar, Dorota V. Burchardt

Journal:

Journal of Molecular Modeling

Year:

2012

Language:

english

File:

PDF, 657 KB

english, 2012

12

Nuclear quadrupole resonance characterization of carbamazepine cocrystals

Seliger, Janez, Žagar, Veselko

Journal:

Solid State Nuclear Magnetic Resonance

Year:

2012

Language:

english

File:

PDF, 368 KB

english, 2012

13

Encyclopedia of Spectroscopy and Spectrometry || Nuclear Quadrupole Resonance, Theory*

Year:

1999

Language:

english

File:

PDF, 187 KB

english, 1999

14

Hydrogen Bonds in Cocrystals and Salts of 2-Amino-4,6-dimethylpyrimidine and Carboxylic Acids Studied by Nuclear Quadrupole Resonance

Seliger, Janez, Žagar, Veselko

Journal:

Journal of Physical Chemistry B

Year:

2013

Language:

english

File:

PDF, 729 KB

english, 2013

15

14N NQR, 1H NMR and DFT/QTAIM study of hydrogen bonding and polymorphism in selected solid 1,3,4-thiadiazole derivatives

Seliger, Janez, Žagar, Veselko, Latosińska, Jolanta N.

Journal:

Physical Chemistry Chemical Physics

Year:

2010

Language:

english

File:

PDF, 1.81 MB

english, 2010

16

Nuclear Quadrupole Resonance Study of Hydrogen Bonds in Solid 2-Methylbenzimidazole and 5,6-Dimethylbenzimidazole

Seliger, Janez, Žagar, Veselko

Journal:

The Journal of Physical Chemistry C

Year:

2013

Language:

english

File:

PDF, 561 KB

english, 2013

17

NQR investigation and characterization of cocrystals and crystal polymorphs

Seliger, Janez, Å½agar, Veselko, Asaji, Tetsuo

Journal:

Hyperfine Interactions

Year:

2013

Language:

english

File:

PDF, 450 KB

english, 2013

18

14 N Nuclear Quadrupole Resonance Study of Polymorphism in Famotidine

Luźnik, Janko, Pirnat, Janez, Jazbinšek, Vojko, Lavrič, Zoran, žagar, Veselko, Srčič, Stane, Seliger, Janez, Trontelj, Zvonko

Journal:

Journal of Pharmaceutical Sciences

Year:

2014

Language:

english

File:

PDF, 2.02 MB

english, 2014

19

Crystallization of an amorphous solid studied by nuclear quadrupole double resonance

Seliger, Janez, Žagar, Veselko

Journal:

Chemical Physics

Year:

2013

Language:

english

File:

PDF, 483 KB

english, 2013

20

Tautomerism and Possible Polymorphism in Solid Hydroxypyridines and Pyridones Studied by 14 N NQR

Seliger, Janez, Žagar, Veselko

Journal:

Journal of Physical Chemistry A

Year:

2013

Language:

english

File:

PDF, 452 KB

english, 2013

21

Unusual Electron Charge Density in Carboxylic Acid. 17 O Quadrupole Coupling in cis -Cyclobutane-1,2-dicarboxylic Acid

Seliger, Janez, Žagar, Veselko

Journal:

Journal of Physical Chemistry A

Year:

2012

Language:

english

File:

PDF, 435 KB

english, 2012

22

Nuclear Quadrupole Resonance Investigation of Hydrogen Bonding in Some Cocrystals of 2,3,5,6-Tetramethylpyrazine and Carboxylic Acids

Seliger, Janez, Žagar, Veselko

Journal:

Journal of Physical Chemistry B

Year:

2014

Language:

english

File:

PDF, 671 KB

english, 2014

23

Topology of the Interactions Pattern in Pharmaceutically Relevant Polymorphs of Methylxanthines (Caffeine, Theobromine, and Theophiline): Combined Experimental ( 1 H– 14 N Nuclear Quadrupole Double Resonance) and Computational (DFT and Hirshfeld-Based) Study

Latosińska, Jolanta Natalia, Latosińska, Magdalena, Olejniczak, Grzegorz A., Seliger, Janez, Žagar, Veselko

Journal:

Journal of Chemical Information and Modeling

Year:

2014

Language:

english

File:

PDF, 6.32 MB

english, 2014

24

Electron Configuration and Hydrogen-Bonding Pattern in Several Thymine and Uracil Analogues Studied by 1 H– 14 N NQDR and DFT/QTAIM

Seliger, Janez, Žagar, Veselko, Latosińska, Magdalena, Latosińska, Jolanta Natalia

Journal:

Journal of Physical Chemistry B

Year:

2012

Language:

english

File:

PDF, 3.75 MB

english, 2012

25

Phase Transition and Ring-Puckering Motion in a Metal–Organic Perovskite [(CH 2 ) 3 NH 2 ][Zn(HCOO) 3 ]

Asaji, Tetsuo, Ito, Yoshiharu, Seliger, Janez, Žagar, Veselko, Gradišek, Anton, Apih, Tomaž

Journal:

Journal of Physical Chemistry A

Year:

2012

Language:

english

File:

PDF, 1.42 MB

english, 2012

26

Phonon-Driven Proton Transfer in 3,5-Pyridine Dicarboxylic Acid Studied by 2 H, 14 N, and 17 O Nuclear Quadrupole Resonance

Seliger, Janez, Žagar, Veselko

Journal:

Journal of Physical Chemistry A

Year:

2011

Language:

english

File:

PDF, 921 KB

english, 2011

27

An Insight into Prototropism and Supramolecular Motifs in Solid-State Structures of Allopurinol, Hypoxanthine, Xanthine, and Uric Acid. A 1 H– 14 N NQDR Spectroscopy, Hybrid DFT/QTAIM, and Hirshfeld Surface-Based Study

Latosińska, Jolanta Natalia, Latosińska, Magdalena, Seliger, Janez, Žagar, Veselko, Kazimierczuk, Zygmunt

Journal:

Journal of Physical Chemistry B

Year:

2014

Language:

english

File:

PDF, 7.51 MB

english, 2014

28

Hydrogen bonding and proton transfer in cocrystals of 4,4′-bipyridyl and organic acids studied using nuclear quadrupole resonance

Seliger, Janez, Žagar, Veselko

Journal:

Physical Chemistry Chemical Physics

Year:

2014

Language:

english

File:

PDF, 1.50 MB

english, 2014

29

14N NQR and proton NMR study of ferroelectric phase transition and proton exchange in organic ferroelectric (H2-TPPZ)(Hca)2

Seliger, Janez, Žagar, Veselko, Asaji, Tetsuo, Hasegawa, Yumi

Journal:

Physical Chemistry Chemical Physics

Year:

2010

Language:

english

File:

PDF, 594 KB

english, 2010

30

Hydrogen bonding in 1,2-diazine–chloranilic acid (2 : 1) studied by a 14N nuclear quadrupole coupling tensor and multi-temperature X-ray diffraction

Seliger, Janez, Žagar, Veselko, Gotoh, Kazuma, Ishida, Hiroyuki, Konnai, Akiko, Amino, Daiki, Asaji, Tetsuo

Journal:

Physical Chemistry Chemical Physics

Year:

2009

Language:

english

File:

PDF, 665 KB

english, 2009

31

A 14N nuclear quadrupole resonance study of phase transitions and molecular dynamics in hydrogen bonded organic antiferroelectrics 55DMBP–H2ca and 1,5-NPD–H2ca

Seliger, Janez, Žagar, Veselko, Asaji, Tetsuo, Gotoh, Kazuma, Ishida, Hiroyuki

Journal:

Physical Chemistry Chemical Physics

Year:

2011

Language:

english

File:

PDF, 1.28 MB

english, 2011

32

Polarization enhanced “single shot” [sup 14]N nuclear quadrupole resonance detection of trinitrotoluene at room temperature

Lužnik, Janko, Pirnat, Janez, Jazbinšek, Vojko, Apih, Tomaž, Gregorovič, Alan, Blinc, Robert, Seliger, Janez, Trontelj, Zvonko

Journal:

Applied Physics Letters

Year:

2006

Language:

english

File:

PDF, 317 KB

english, 2006

33

and

Zalar, Boštjan, Lebar, Andrija, Seliger, Janez, Blinc, Robert, Laguta, Valentin V., Itoh, Mitsuru

Journal:

Physical Review B

Year:

2005

Language:

english

File:

PDF, 682 KB

english, 2005

34

and

Laguta, Valentin V., Blinc, Robert, Itoh, Mitsuru, Seliger, Janez, Zalar, Boštjan

Journal:

Physical Review B

Year:

2005

Language:

english

File:

PDF, 198 KB

english, 2005

35

Electron Spin Density Distribution in the Organic Ferromagnet TDAE-

Blinc, Robert, Jeglič, Peter, Apih, Tomaž, Seliger, Janez, Arčon, Denis, Omerzu, Aleš

Journal:

Physical Review Letters

Year:

2002

Language:

english

File:

PDF, 196 KB

english, 2002

36

17 O and 14 N quadrupole coupling and the mechanism of the ferroelectric transition in diglycine nitrate

Seliger, Janez, [Zbreve]agar, Veselko, Blinc, Robert, Novak, A., Rodin, S.

Journal:

Ferroelectrics Letters Section

Year:

1986

Language:

english

File:

PDF, 351 KB

english, 1986

37

Unusual case of desmotropy. Combined spectroscopy (1H-14N NQDR) and quantum chemistry (periodic hybrid DFT/QTAIM and Hirshfeld surface-based) study of solid dacarbazine (anti-neoplastic)

Latosińska, Jolanta Natalia, Latosińska, Magdalena, Seliger, Janez, Žagar, Veselko, Burchardt, Dorota V., Derwich, Katarzyna

Journal:

Solid State Nuclear Magnetic Resonance

Year:

2015

Language:

english

File:

PDF, 3.66 MB

english, 2015

38

Nuclear quadrupole double resonance study of ferroelectric phase transitions

Seliger, Janez, Blinc, Robert

Journal:

Year:

1988

Language:

english

File:

PDF, 278 KB

english, 1988

39

Impact of structural differences in carcinopreventive agents indole-3-carbinol and 3,3′-diindolylmethane on biological activity. An X-ray, 1H–14N NQDR, 13C CP/MAS NMR, and periodic hybrid DFT study

Latosińska, Jolanta Natalia, Latosińska, Magdalena, Szafrański, Marek, Seliger, Janez, Žagar, Veselko, Burchardt, Dorota V.

Journal:

European Journal of Pharmaceutical Sciences

Year:

2015

Language:

english

File:

PDF, 2.17 MB

english, 2015

40

Polymorphism and disorder in natural active ingredients. Low and high-temperature phases of anhydrous caffeine: Spectroscopic (1H–14N NMR–NQR/14N NQR) and solid-state computational modelling (DFT/QTAIM/RDS) study

Seliger, Janez, Žagar, Veselko, Apih, Tomaž, Gregorovič, Alan, Latosińska, Magdalena, Olejniczak, Grzegorz Andrzej, Latosińska, Jolanta Natalia

Journal:

European Journal of Pharmaceutical Sciences

Year:

2016

Language:

english

File:

PDF, 1.69 MB

english, 2016

41

Polymorphism and Thermal Stability of Natural Active Ingredients. 3,3’- Diindolylmethane (Chemopreventive and Chemotherapeutic) Studied by a Combined X-Ray, 1H – 14N NMR-NQR, DSC and Solid-State DFT/3D HS/QTAIM/RDS Computational Approach

Latosińska, Jolanta Natalia, Latosińska, Magdalena, Szafrański, Marek, Seliger, Janez, Žagar, Veselko

Journal:

Crystal Growth & Design

Year:

2016

Language:

english

File:

PDF, 2.37 MB

english, 2016

42

1H–14N cross-relaxation spectrum analysis in sildenafil and sildenafil citrate

Gregorovič, Alan, Apih, Tomaž, Seliger, Janez

Journal:

Solid State Nuclear Magnetic Resonance

Year:

2016

Language:

english

File:

PDF, 729 KB

english, 2016

43

14N NQR Study of Diphenylamine

Seliger, Janez, Žagar, Veselko

Journal:

Zeitschrift für Naturforschung A

Year:

2008

Language:

english

File:

PDF, 132 KB

english, 2008

44

Encyclopedia of Spectroscopy and Spectrometry || Nuclear Quadrupole Resonance, Theory

Year:

1999

Language:

english

File:

PDF, 313 KB

english, 1999

45

Encyclopedia of Spectroscopy and Spectrometry || Nuclear Quadrupole Resonance, Theory

Year:

2017

Language:

english

File:

PDF, 192 KB

english, 2017

46

14 N NQR spectroscopy reveals the proton position in N–H⋯N bonds: a case study with proton sponges

Gregorovič, Alan, Apih, Tomaž, Žagar, Veselko, Seliger, Janez

Journal:

Physical Chemistry Chemical Physics

Year:

2019

Language:

english

File:

PDF, 2.95 MB

english, 2019

47

NMR and NQR Study of Polymorphism in Carbamazepine

Apih, TomaÅ¾, Å½agar, Veselko, Seliger, Janez

Journal:

Solid State Nuclear Magnetic Resonance

Year:

2020

Language:

english

File:

PDF, 1.74 MB

english, 2020

48

Nuclear Quadrupole Resonance (NQR)âA Useful Spectroscopic Tool in Pharmacy for the Study of Polymorphism

Trontelj, Zvonko, Pirnat, Janez, JazbinÅ¡ek, Vojko, LuÅ¾nik, Janko, SrÄiÄ, Stane, LavriÄ, Zoran, BeguÅ¡, Samo, Apih, TomaÅ¾, Å½agar, Veselko, Seliger, Janez

Journal:

Year:

2020

File:

PDF, 5.33 MB

2020

49

Nuclear quadrupole resonance supported by periodic quantum calculations: a sensitive tool for precise structural characterization of short hydrogen bonds

Stare, Jernej, GradiÅ¡ek, Anton, Seliger, Janez

Journal:

Physical Chemistry Chemical Physics

Year:

2020

File:

PDF, 2.39 MB

2020