Nowak-Wydra, Barbara: search on Z-Library

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1

UV, 1H and 13C NMR spectra, and AM1 studies of protonation of aminopyridines

Zofia Dega-Szafran, Anna Kania, Barbara Nowak-Wydra, Miroslaw Szafran

Journal:

Journal of Molecular Structure

Year:

1994

Language:

english

File:

PDF, 590 KB

english, 1994

2

Minor betalains in fruits of Hylocereus species

Sławomir Wybraniec, Barbara Nowak-Wydra, Katarzyna Mitka, Piotr Kowalski, Yosef Mizrahi

Journal:

Year:

2007

Language:

english

File:

PDF, 252 KB

english, 2007

3

Lupin alkaloids 6. Stereochemistry of bis-quinolizidine alkaloids with γ-oxo-α,β-enamine system

Brukwicki, Tadeusz, Wysocka, Waleria, Nowak-Wydra, Barbara

Journal:

Canadian Journal of Chemistry

Year:

1994

Language:

english

File:

PDF, 391 KB

english, 1994

4

Synthesis of bis-2,7-substituted 1,2,3,6,7,8-hexahydroisoindolo[5,6-f]isoindole-1,3,6,8-tetraones

D. W. Boykin, Barbara Nowak-Wydra, A. L. Baumstark

Journal:

Journal of Heterocyclic Chemistry

Year:

1991

File:

PDF, 197 KB

1991

5

Structure of 3-hydroxy-3-phenyl-pyrido[2,1-c][1,4]dihydrooxazinium bromide studied by X-ray, FTIR, 1H, 13C and 15N NMR, and DFT methods

Mirosław Szafran, Barbara Nowak-Wydra, Andrzej Katrusiak, Zofia Dega-Szafran

Journal:

Journal of Molecular Structure

Year:

2006

Language:

english

File:

PDF, 669 KB

english, 2006

6

Differentiation of substituent effects from hydrogen bonding and protonation effects in carbon-13 NMR spectra of pyridine N-oxides

Szafran, Miroslaw, Brycki, Bogumil, Dega-Szafran, Zofia, Nowak-Wydra, Barbara

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1991

Language:

english

File:

PDF, 664 KB

english, 1991

7

Reinvestigation of 1H and 13C NMR spectra of 1,8-bis(dimethylamino)naphthalene complexes with mineral acids

Zofia Dega-Szafran, Barbara Nowak-Wydra, Miroslaw Szafran

Journal:

Magnetic Resonance in Chemistry

Year:

1993

Language:

english

File:

PDF, 297 KB

english, 1993

8

15N NMR study of substituted 2-(phenylamino)-5-phenyl-1,3,4-oxadiazoles

Błażej Gierczyk, Barbara Nowak-Wydra, Jakub Grajewski, Maciej Zalas

Journal:

Magnetic Resonance in Chemistry

Year:

2007

Language:

english

File:

PDF, 105 KB

english, 2007

9

Differences in proton–proton coupling constants of N+–CH2–CH2 protons of some betaines, N+–(CH2)2-3–COO−, and their complexes in aqueous solution

Mirosław Szafran, Zofia Dega-Szafran, Barbara Nowak-Wydra, Mariusz Pietrzak

Journal:

Journal of Molecular Structure

Year:

2001

Language:

english

File:

PDF, 207 KB

english, 2001

10

The diffusion NMR studies of crown ethers–cyclodextrin complexation process

Błażej Gierczyk, Barbara Nowak-Wydra, Grzegorz Schroeder, Radosław Pankiewicz

Journal:

Magnetic Resonance in Chemistry

Year:

2010

Language:

english

File:

PDF, 172 KB

english, 2010

11

Mammillarinin: A New Malonylated Betacyanin from Fruits of Mammillaria

Wybraniec, Sławomir, Nowak-Wydra, Barbara

Journal:

Journal of Agricultural and Food Chemistry

Year:

2007

Language:

english

File:

PDF, 601 KB

english, 2007

12

17O NMR spectroscopic study of substituted 9-fluorenones

D. W. Boykin, Barbara Nowak-Wydra

Journal:

Magnetic Resonance in Chemistry

Year:

1991

Language:

english

File:

PDF, 372 KB

english, 1991

13

Studies on a Chirality of Orellanine. Spectral Nonequivalence of Atrop-isomers of Tetra-O-methylorellanine and Related Compounds Induced by Chiral Solvating Agents

Z. Antkowiak, Wieslaw, Antkowiak, Róza, Nowak-Wydra, Barbara

Journal:

Year:

2002

Language:

english

File:

PDF, 388 KB

english, 2002

14

Characterization of 2-aryl-1,3,4-oxadiazoles by 15N and 13C NMR spectroscopy

Barbara Nowak-Wydra, Błażej Gierczyk, Grzegorz Schroeder

Journal:

Magnetic Resonance in Chemistry

Year:

2003

Language:

english

File:

PDF, 89 KB

english, 2003

15

Multinuclear magnetic resonance studies of fluoronitroanilines

Błażej Gierczyk, Barbara Nowak-Wydra, Aleksandra Mielcarek, Maciej Zalas, Jakub Grajewski

Journal:

Magnetic Resonance in Chemistry

Year:

2009

Language:

english

File:

PDF, 155 KB

english, 2009

16

3-Substituted 1-methoxypyridinium ions: substituent effects on rates of hydrogen-deuterium exchange

Nowak-Wydra, Barbara, Szafran, Miroslaw

Journal:

Journal of Organic Chemistry

Year:

1983

Language:

english

File:

PDF, 372 KB

english, 1983

17

1H and 13C NMR spectroscopic structural elucidation of new decarboxylated betacyanins

Sławomir Wybraniec, Barbara Nowak-Wydra, Yosef Mizrahi

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 121 KB

english, 2006

18

FTIR, NMR and kinetic studies of proton transfer reactions from nitro-substituted diarylmethanes to N-bases with guanidine character

Grzegorz Schroeder, Boguslawa Łȩska, Arnold Jarczewski, Barbara Nowak-Wydra, Bogumil Brzezinski

Journal:

Journal of Molecular Structure

Year:

1995

Language:

english

File:

PDF, 617 KB

english, 1995

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