Login for students

Login for employees

Publication detail

Synthesis, properties and crystal structures of nitrobenzoatocopper(II) complexes with pyrazinecarboxamide.
Authors: Vasková Zuzana | Padělková Zdeňka | Mazur Milan | Valigura Dusan | Moncoľ Jan
Year: 2011
Type of publication: článek v odborném periodiku
Name of source: Transition Metal Chemistry
Publisher name: Springer
Page from-to: 883-889
Titles:
Language Name Abstract Keywords
cze syntéza, vlastnosti a krystalová struktura nitrobenzoatoCo(II) komplexů s pyrazinekarboxamidem Syntéza, spektroskopická charakterizace a krystalové struktury dvou nitrobenzoátoměďnatých komplexů, [Cu(2-O(2)Nbz)(2)(pca)(2)(H(2)O)(2)] (1) a [Cu(3,5- (O(2)N)(2)bz)(2)(pca)-(2)(H(2)O)(2)] (2) (kde 2-O(2)Nbz = 2-nitrobenzoát, 3,5-(O(2)N)(2)bz = 3,5-dinitrobenzoát, pca = pyrazinekarboxamid) byly popsány. Komplexy 1 a 2 tvořené z centrosymmetrických molekul s Cu(II) atomy monodentátně koordinovanými 2-nitrobenzoátem (1) nebo 3,5 dinitrobenzoátem (2) a pyrazinkarboxamidovými ligandy, formují tetragonální roviny, molekuly vody jako ligandy dokončují tetragonální bipyramidální koordinaci. Molekuly obou komplexů jsou propojené s N–H•••O a O–H•••O vodíkovými vazbami. Podobné experimenty s 3-nitrobenzoovými kyselinami vedly ke vzniku hydrolyzního produktu [Cu(pyzCOO)(2)](n) (3) (pyz- COO = pyrazinekarboxylat). Známá krystalová struktura komplexu 3 byla znovu- určena za nízké teploty s významně vyšší precizností. Kystalové uspořádání a C–H•••O/C–H•••N vodíkové vazby jsou diskutovány. Cu (II) komplexy;X-ray
eng Synthesis, properties and crystal structures of nitrobenzoatocopper(II) complexes with pyrazinecarboxamide. The synthesis, spectral characterization and crystal structures of two nitrobenzoatocopper(II) complexes, namely [Cu(2-O(2)Nbz)(2)(pca)(2)(H(2)O)(2)] (1) and [Cu(3,5- (O(2)N)(2)bz)(2)(pca)(2)(H(2)O)(2)] (2) (where 2-O(2)Nbz = 2-nitrobenzoate, 3,5-(O(2)N)(2)bz = 3,5-dinitrobenzoate, pca = pyrazinecarboxamide), are reported. Complexes 1 and 2 consist of centrosymmetric molecules with the Cu(II) atom monodentately coordinated by a pair of anionic 2-nitrobenzoato (1) or 3,5-dinitrobenzoato (2) ligands and a pair of pyrazinecarboxamide ligands, forming a nearly tetragonal basal plane, and by a pair of water ligands that complete the tetragonal–bipyramidal coordination polyhedron. The molecules of both complexes are linked by N–H•••O and O–H•••O hydrogen bonds and lie in planes, which have different orientations depending on the space group. Similar experiments with 3-nitrobenzoic acid resulted in the isolation of the hydrolysis product [Cu(pyzCOO)(2)](n) (3) (pyz- COO = pyrazinecarboxylate). The known crystal structure of complex 3 has been re-determined at low temperature with significantly higher precision. The crystal packing and C–H•••O/C–H•••N hydrogen bonds are discussed. Cu (II) complexes;X-ray

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives