2-(2´-Hydroxybenzoyl)pyrrole N-Benzoylhydrazone
نویسندگان
چکیده
منابع مشابه
The biologically active iron chelators 2-pyridylcarboxaldehyde isonicotinoylhydrazone, 2-pyridylcarboxaldehyde benzoylhydrazone monohydrate and 2-furaldehyde isonicotinoylhydrazone.
In the crystal structures of the respective title compounds, C12H10N4O, C13H11N3O.H2O and C11H9N3O2, variations in the torsion angles of the aromatic pyridyl and benzoyl groups are observed, and the disposition of the heterocyclic aldehyde is shown to be influenced by the ring size of this group.
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A síntese e a caracterização da 2-acetilpiridina-(2-aminobenzoilhidrazona) (HL) e do seu primeiro complexo com dióxido de urânio são descritas neste trabalho. A análise estrutural da hidrazona, HL, por difração de raios X do monocristal, mostra que sua estrutura molecular é quase planar no estado sólido, apresentando ligações de hidrogênio intermoleculares. O complexo [UO 2 (L)(dmf) 2 ](NO 3 ) ...
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^ d jw0j (w0) + ^ d jw1j (w1) 2 + E(jwj + 1) = d 0 (w0) + d 0 (w1) 2 so d 0 obeys the average law (without conservation). Proof.[of Theorem 19] Note the d 0 constructed in Theorem 18 is generally not conservative. We will parallel Theorem 4, by constructing a slothful two-sided quasipolynomially precise cover. The construction of a conservative cover from a slothful cover preserves two-sided qu...
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Let $S_n$ be the symmetric group on the set $[n]={1, 2, ldots, n}$. For $gin S_n$ let $fix(g)$ denote the number of fixed points of $g$. A subset $S$ of $S_n$ is called $t$-emph{transitive} if for any two $t$-tuples $(x_1,x_2,ldots,x_t)$ and $(y_1,y_2,ldots ,y_t)$ of distinct elements of $[n]$, there exists $gin S$ such that $x_{i}^g=y_{i}$ for any $1leq ileq t$ and additionally $S$ is called e...
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The title compound, C(11)H(9)N(3)O(2)S, crystallizes with two independent mol-ecules in the asymmetric unit. The central thio-urea core makes dihedral angles of -3.3 (3) and 0.6 (3)° with the furan carbonyl groups in each mol-ecule, whereas the pyridine ring is inclined by 4.63 (2) and 11.28 (7)°, respectively. The trans-cis geometry of the thio-urea fragment is stabilized by an intra-molecular...
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ژورنال
عنوان ژورنال: Molbank
سال: 2003
ISSN: 1422-8599
DOI: 10.3390/m351