Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Anna V. Dolzhenko"'
Publikováno v:
Crystals, Vol 1, Iss 3, Pp 136-144 (2011)
When crystallized from ethanol, 7,7-dimethyl-2-pyridin-4-yl-6,7-dihydro-1,2,4-triazolo[1,5-a][1,3,5]triazin-5-amine forms crystals which have monoclinic (P21/n) symmetry with unit cell dimensions a = 7.3326(5) Å, b = 19.4897(14) Å, c = 8.6586(6) Å
Externí odkaz:
https://doaj.org/article/bf9ff318a6414229a116578faee95426
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 5, Pp o1183-o1184 (2011)
The 1,2,4-triazolo[1,5-a][1,3,5]triazine system in the title compound, C17H14FN7·2CH3OH, is essentially planar, with an r.m.s. deviation of 0.0215 Å. The attached phenyl ring lies almost in the mean plane of the heterocyclic core [dihedral angle =
Externí odkaz:
https://doaj.org/article/33ef5ebbd8734f3ebfc75337b5fa95a7
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 1, Pp o85-o86 (2011)
In the title compound, C16H13N7O, the 1,2,4-triazolo[1,5-a][1,3,5]triazine heterocyclic system is essentially planar (r.m.s. deviation = 0.0375 Å). The attached benzene ring lies almost in the mean plane of 1,2,4-triazolo[1,5-a][1,3,5]triazine [dihe
Externí odkaz:
https://doaj.org/article/05fea6fec4cc4e2f91d34e6f6161026b
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 1, Pp o83-o84 (2011)
In the title compound, C10H12N6·C2H5OH, the planarity of the heterocyclic system is slightly distorted at the triazine ring (r.m.s. deviation = 0.1191 Å), which adopts a conformation best described as intermediate between a flattened twisted boat a
Externí odkaz:
https://doaj.org/article/fa2651c1b5d247b09631f78cbe6a3b8b
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 8, Pp o1990-o1991 (2010)
The title compound, C12H13N5O2S {systematic name: ethyl N-[N-(3-phenyl-1H-1,2,4-triazol-5-yl)carbamothioyl]carbamate}, is a monoclinic polymorph (space group P21/c) which crystallizes with three similar independent molecules in the asymmetric unit. T
Externí odkaz:
https://doaj.org/article/f7d5feebc193448eb2bb009aa5e43a47
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 7, Pp o1835-o1836 (2010)
In the title compound, C14H10F3N7·2CH4O, the heterocyclic ring system is essentially planar (r.m.s. deviation = 0.009 Å) and makes a dihedral angle of 6.91 (8)° with the attached benzene ring. In the crystal, the main molecules form centrosymmetri
Externí odkaz:
https://doaj.org/article/8091337873ce493fb42ec757f65424af
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 5, Pp o1209-o1210 (2010)
In the title compound, C7H12N6O·2H2O, the Z configuration of the hydrazone fragment is stabilized by an intramolecular N—H...N hydrogen bond involving one of the amino groups. In the crystal structure, the hydrazonamide molecules are connected via
Externí odkaz:
https://doaj.org/article/3f33324c92574eeb81477d75af26206f
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 3, Pp o549-o550 (2010)
The title compound, [systematic name: ethyl ({[3-(4-methylphenyl)-1H-1,2,4-triazol-5-yl]amino}carbonothioyl)carbamate], C13H16N5O2S, exists in the 3-aryl-5-thioureido-1H-1,2,4-triazole tautomeric form. The molecular structure is stabilized by intramo
Externí odkaz:
https://doaj.org/article/41313244478049f2b9d3d46eef9f5664
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 2, Pp o425-o425 (2010)
The title compound {systematic name: ethyl N-[N-(3-phenyl-1H-1,2,4-triazol-5-yl)carbamothioyl]carbamate}, C12H13N5O2S, exists in the 3-phenyl-5-thioureido-1H-1,2,4-triazole tautomeric form stabilized by intramolecular hydrogen bonding between the end
Externí odkaz:
https://doaj.org/article/2b4f4213892e420dbdf8abe2b48cb931
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1720-o1721 (2009)
The title compound, C6H8N6, crystallizes as an N—H...N hydrogen-bond-linked dimer of two almost identical molecules in the asymmetric unit. Both of the molecules are almost planar (rms deviations of 0.0186 and 0.0296 Å in the two molecules) and th
Externí odkaz:
https://doaj.org/article/d9ec3ee0b4c34ce09107ff2fb8bc0a5d