Što treba znati o hrvatskoj kemijskoj nomenklaturi?

Načinjen je pregled najčešćih pogrešaka i zabluda vezanih uz hrvatsku kemijsku nomenklaturu. Objašnjena je razlika između nomenklature i nazivlja. Za kemijske elemente selenij, telurij, titanij i uranij ne bi trebalo rabiti zastarjela imena selen, telur, titan i uran. Jedan kemijski spoj može imati više ispravnih kemijskih imena. Treba razlikovati posvojne pridjeve izvedene iz imenâ kemijskih elemenata (npr. ugljikov, aluminijev, platinin) od gradivnih pridjeva izvedenih iz imenâ njihovih elementarnih tvari (npr. ugljični, aluminijski, platinski). Pri pisanju kemijskih imena treba paziti na pravila o uporabi razmaka i spojnice, a treba voditi računa i o pravilnoj uporabi kurziva. U hrvatskom jeziku prefiksi koji u supstitucijskoj nomenklaturi označuju halogene supstituente nisu identični prefiksima koji u koordinacijskoj nomenklaturi označuju halogene ligande

Controlling Solvate Formation of a Schiff Base by Combining Mechano-chemistry with Solution Synthesis

A Schiff base dicarboxylic acid (1) was prepared by condensation of 2-hydroxy-1-naphthaldehyde with 5-aminoisophthalic acid. Its solvates with pyridine (2a and 2b) and dimethylformamide (3) were prepared by liquid-assisted grinding and by conventional solvent-based methods. All products were characterised by FT-IR spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The structures of 1, 2b and 3 were determined by single crystal X-ray diffraction. 1 was found to be a pure Schiff base, 2b a pyridine solvate and 3 a dimethylformamide solvate monohydrate. In all three structures, the Schiff base molecule appears to be present as the ketoamine tautomer.(doi: 10.5562/cca2111

N-Benzyl-3-nitro­aniline

The mol­ecule of the title compound, C13H12N2O2, has a bent conformation with a torsion angle about the central C—N bond of 72.55 (19)°. In the crystal, the mol­ecules are connected via classical N—H⋯O and non-classical C—H⋯O hydrogen bonds into chains along [10]. The dihedral angle between the ring planes is 86.0 (6)°