Structures by: Yancheva D.

Total: 14

C20H20N2

C20H20N2

Kolev, TsonkoYancheva, DenitsaSchürmann, MarkusKleb, Dirk-ChristianPreut, HansSpiteller, Michael

Acta Crystallographica Section E (2002) 58, 10 o1093-o1094

a=13.5270(3)Å   b=16.1781(3)Å   c=16.3616(4)Å

α=90.00°   β=102.3807(9)°   γ=90.00°

C11H10N2O3

C11H10N2O3

Kolev, TsonkoYancheva, DenitsaSchürmann, MarkusKleb, Dirk-ChristianPreut, HansSpiteller, Michael

Acta Crystallographica Section E (2002) 58, 11 o1267-o1268

a=4.1031(4)Å   b=12.1158(12)Å   c=10.4553(10)Å

α=90.00°   β=95.171(6)°   γ=90.00°

2-{3-[(E)-(3,4-Dimethoxyphenyl)ethenyl]-5,5-dimethylcyclohex-2- enylidene}malononitrile

C21H22N2O2

Tsonko KolevDenitsa YanchevaBoris ShivachevRosica PetrovaMichael Spiteller

Acta Crystallographica Section E (2005) 61, 3 o550-o552

a=8.711(2)Å   b=18.005(3)Å   c=12.5175(18)Å

α=90.00°   β=107.66(2)°   γ=90.00°

L-Prolinamidium hydrogensquarate

C5H11N2O,C4HO4

Tsonko KolevDenitsa YanchevaMichael SpitellerWilliam S. SheldrickHeike Mayer-Figge

Acta Crystallographica Section E (2006) 62, 2 o463-o465

a=25.904(4)Å   b=5.9781(11)Å   c=6.5805(9)Å

α=90.00°   β=100.724(17)°   γ=90.00°

C21H19N3

C21H19N3

Kolev, TsonkoGlavcheva, Zornitza Yancheva, DenitsaSchürmann, MarkusKleb, Dirk-ChristianPreut, HansBleckmann, Paul

Acta Crystallographica Section E (2001) 57, 8 o760-o761

a=15.5033(3)Å   b=7.5309(2)Å   c=15.9609(4)Å

α=90.00°   β=110.7740(10)°   γ=90.00°

C22H24N2O3

C22H24N2O3

Kolev, TsonkoGlavcheva, Zornitza Yancheva, DenitsaSchürmann, MarkusKleb, Dirk-ChristianPreut, HansBleckmann, Paul

Acta Crystallographica Section E (2001) 57, 10 o966-o967

a=7.5983(3)Å   b=11.4757(4)Å   c=11.5774(4)Å

α=84.8457(15)°   β=82.2149(16)°   γ=79.0257(17)°

C19H18N2O

C19H18N2O

Kolev, TsonkoGlavcheva, Zornitza Yancheva, DenitsaSchürmann, MarkusKleb, Dirk-ChristianPreut, HansBleckmann, Paul

Acta Crystallographica Section E (2001) 57, 6 o561-o562

a=15.4413(3)Å   b=10.9988(3)Å   c=9.5699(2)Å

α=90.00°   β=90.00°   γ=90.00°

Pyridinium-betaine of squaric acid

C9H5NO3

Tsonko KolevDenitsa YanchevaBoris ShivachevRosica Petrova

Acta Crystallographica Section E (2007) 63, 7 o3259-o3259

a=5.0654(2)Å   b=18.8003(17)Å   c=8.1609(4)Å

α=90.00°   β=90.00°   γ=90.00°

3-benzoylpyridinium betaine of squaric acid

C16H9NO4

Tsonko KolevDenitsa YanchevaBoris ShivachevRosica PetrovaMichael Spiteller

Acta Crystallographica Section C (2005) 61, 4 o213-o215

a=7.9319(11)Å   b=13.6577(14)Å   c=12.0890(12)Å

α=90.00°   β=103.903(12)°   γ=90.00°

C16H9NO4

C16H9NO4

Kolev, TsonkoYancheva, DenitsaKleb, D.-Chr.Schürmann, MarkusPreut, HansBleckmann, Paul

Zeitschrift für Kristallographie - New Crystal Structures (2001) 216, 1 65-66

a=14.6707(14)Å   b=8.1155(9)Å   c=10.4940(10)Å

α=90.00°   β=90.00°   γ=90.00°

C22H24N2O2

C22H24N2O2

Kolev, TsonkoYancheva, DenitsaKleb, D.-Chr.Schürmann, MarkusGlavcheva, ZornitzaPreut, HansBleckmann, Paul

Zeitschrift für Kristallographie - New Crystal Structures (2001) 216, 1 67-68

a=7.5590(10)Å   b=19.943(2)Å   c=12.990(2)Å

α=90.00°   β=93.62(2)°   γ=90.00°

C11H8N2O2

C11H8N2O2

Kolev, TsonkoYancheva, DenitsaGlavcheva, ZornitsaSchürmann, MarkusKleb, Dirk-Chr.Preut, HansBleckmann, Paul

Zeitschrift für Kristallographie - New Crystal Structures (2001) 216, 2 239-240

a=4.8356(10)Å   b=13.0308(13)Å   c=32.408(6)Å

α=90.00°   β=92.82(2)°   γ=90.00°

C14H16N2O3

C14H16N2O3

Kolev, TsonkoYancheva, DenitsaSchürmann, MarkusKleb, Dirk-Chr.Preut, HansBleckmann, Paul

Zeitschrift für Kristallographie - New Crystal Structures (2001) 216, 2 241-242

a=6.30660(10)Å   b=7.5559(2)Å   c=14.7551(4)Å

α=88.5449(9)°   β=82.5333(9)°   γ=69.2045(13)°

C14H13N3O4

C14H13N3O4

Kolev, TsonkoYancheva, DenitsaGlavcheva, ZornitsaSchürmann, MarkusKleb, Dirk-Chr.Preut, HansBleckmann, Paul

Zeitschrift für Kristallographie - New Crystal Structures (2001) 216, 2 237-238

a=12.5926(16)Å   b=6.9910(9)Å   c=15.765(2)Å

α=90.00°   β=107.661(6)°   γ=90.00°