N,N'-Bis[(E)-quinoxalin-2-ylmethyl-idene]-ethane-1,2-diamine.
TLDR
In the molecule of the title compound, C20H16N6, the central C—C bond lies on a crystallographic inversion centre, where the quinoxalidine ring is nearly planar, with a maximum deviation of 0.021 (2) Å from the mean plane.Abstract:
In the molecule of the title compound, C20H16N6, the central C—C bond lies on a crystallographic inversion centre. The quinoxalidine ring is nearly planar, with a maximum deviation of 0.021 (2) A from the mean plane. The crystal structure is stabilized by intermolecular C—H⋯N interactions, leading to the formation of a layer-like structure, which extends along the a axis.read more
Citations
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Quinoxaline-based Schiff base transition metal complexes: review
TL;DR: The literature survey as discussed by the authors highlights spectra and biological activity of transition metal complexes derived from Schiff bases of quinoxaline and discusses the extensive studies of synthesis, spectral, structural characterization, and biological activities of the metal complexes with heterocyclic Schiff bases.
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(Z)-2-Amino-3-[(E)-benzyl-ideneamino]but-2-enedinitrile.
TL;DR: The asymmetric unit of the title compound, C11H8N4, contains two independent molecules, and the crystal structure, intermolecular N—H⋯N hydrogen bonds link molecules into ribbons extended in the [100] direction.
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N-[(E)-Quinoxalin-2-ylmethylidene]-1H-indazol-5-amine
TL;DR: In the title molecule, C16H11N5, the mean planes of the quinoxaline and indazole fragments form a dihedral angle of 10.62 (5)° and weak intermolecular N—H⋯N hydrogen bonds link the molecules into zigzag chains extending in the [001] direction.
References
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A short history of SHELX
TL;DR: This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination.
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ORTEP-3 for Windows - a version of ORTEP-III with a Graphical User Interface (GUI)
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Single-crystal structure validation with the program PLATON
TL;DR: The results of a single-crystal structure determination when in CIF format can now be validated routinely by automatic procedures, and the concepts of validation and the classes of checks carried out by the program PLATON as part of the IUCr checkCIF facility are described.
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Crystallographic evidence for the existence of CH.cntdot..cntdot..cntdot.O, CH.cntdot..cntdot..cntdot.N and CH.cntdot..cntdot..cntdot.Cl hydrogen bonds
Robin Taylor,Olga Kennard +1 more
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Catalytic activities of Schiff base transition metal complexes
K.C. Gupta,Alekha Kumar Sutar +1 more
TL;DR: A review of the catalytic activity of metal complexes of binaphthyl compounds and their combinations with salen Schiff base is presented in this paper, where the pyridyl bis (imide) and pyridine bis(imine) complexes of cobalt(II), iron(II) ions have been used as catalysts in the polymerization of ethylene and propylene.
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