Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Valentina A. Kalibabchuk"'
Autor:
Maksym O. Plutenko, Svitlana V. Shishkina, Oleg V. Shishkin, Vadim A. Potaskalov, Valentina A. Kalibabchuk
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 78, Iss 9, Pp 900-904 (2022)
In the molecule of the title compound, C9H11N5O2, the oxime and hydrazide groups are situated in a cis-position in relation to the C—C bond linking the two functional groups. The CH3C(=NOH)C(O)NH fragment deviates from planarity because of a twist
Externí odkaz:
https://doaj.org/article/dafaceaa27e940c6ae2372bfd1c90993
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 5, Pp 728-731 (2020)
The title compound, C22H17NO2·C3H7NO, was synthesized by condensation of an aromatic aldehyde with a secondary amine and subsequent reduction. It was crystallized from a dimethylformamide solution as a monosolvate, C22H17NO2·C3H7NO. The aromatic mo
Externí odkaz:
https://doaj.org/article/73723f9a0d8949fcb93fd1bd690ff96c
Autor:
Inna S. Safyanova, Oksana A. Bondar, Anna V. Pavlishchuk, Iryna V. Omelchenko, Turganbay S. Iskenderov, Valentina A. Kalibabchuk
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 3, Pp 328-331 (2020)
The title compound represents the thallium(I) salt of a substituted 1,2,5-oxadiazole, [Tl(C3H3N4O3)]n, with amino- and hydroxamate groups in the 4- and 3- positions of the oxadiazole ring, respectively. In the crystal, the deprotonated hydroxamate gr
Externí odkaz:
https://doaj.org/article/421d99f50ad848ea80fa3d7017344342
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 9, Pp 1211-1214 (2018)
The title compound, C19H18N4O2, crystallizes with two independent molecules in the asymmetric unit. The triazole ring is inclined to the benzene rings by 9.63 (13) and 87.37 (12)° in one molecule, and by 4.46 (13) and 86.15 (11)° in the other. In t
Externí odkaz:
https://doaj.org/article/786d2eaa5bb7464c979974d2f903cf45
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 9, Pp 1263-1266 (2018)
The reaction of NiCl2 with fumaric acid and nicotinamide in basic solution produces the title polymeric complex, [Ni(C4H2O4)(C6H6N2O)2(H2O)2]n. The NiII cation, located on an inversion centre, is coordinated by two O atoms of the fumarate dianions, t
Externí odkaz:
https://doaj.org/article/37b46c45e33c46c58c9b51b3b129e5dd
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 2, Pp 147-150 (2016)
The centrosymmetric binuclear complex, [Cu2(C2H2N2O4)(C10H8N2)2(C2H6OS)2](ClO4)2, contains two copper(II) ions, connected through an N-deprotonated oxalodihydroxamic acid dianion, two terminal 2,2′-bipyridine ligands, and two apically coordinating
Externí odkaz:
https://doaj.org/article/dad85d6cf9bf45019df156907f867e38
Autor:
Md. Serajul Haque Faizi, Ashanul Haque, Necmi Dege, Syed Imran Hasan, Mustafa Dege, Valentina A. Kalibabchuk
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 4, Pp 550-552 (2017)
In the title biphenyl derivative, C12H9N3O4, the dihedral angle between the benzene rings is 52.84 (10)°. The nitro group attached to the benzene ring is inclined to the ring by 4.03 (2)°, while the nitro group attached to the amino-substituted ben
Externí odkaz:
https://doaj.org/article/b8e61f8d6af04b51b9c3a5654ee361f5
Autor:
Md. Serajul Haque Faizi, Necmi Dege, Ashanul Haque, Valentina A. Kalibabchuk, Mustafa Cemberci
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 2, Pp 96-98 (2017)
The essential part (including all the non-hydrogen atoms except two methyl carbons) of the molecule of the title compound, C21H26N4O5, lies on a mirror plane, which bisects the t-butyl groups. The conformation of the C=N bond of this Schiff base comp
Externí odkaz:
https://doaj.org/article/4c19945c11ef4a94a7946bc956da069e
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 2, Pp 112-114 (2017)
In the title compound, C19H15N3O3, which crystallizes as the phenol–imine tautomer, the dihedral angle between the aromatic rings bridged by the NH unit is 47.16 (16)°. The dihedral angle between the rings bridged by the imine unit is 6.24 (15)°;
Externí odkaz:
https://doaj.org/article/2cb909cf3baf4def8ad05d2d17724190
Autor:
Maksym Seredyuk, Elzbieta Gumienna–Kontecka, Anna Brzuszkiewicz, Turganbay S. Iskenderov, Valentina A. Kalibabchuk
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 11, Pp o1147-o1148 (2014)
The porphyrin core of the title centrosymmetric compound, C44H26N8O8·2C6H5NO2, is approximately planar, the maximum deviation being 0.069 (3) Å. The planes of the benzene rings of the nitrophenyl substituents are almost perpendicular to the porphyr
Externí odkaz:
https://doaj.org/article/8cf97f0deeeb4e38be86dfa2bcecb4c7