TATIERSKY, J., P. SCHWENDT, M. SIVÁK and Jaromír MAREK. Racemic monoperoxovanadium(V) complexes with achiral OO and ON donor set heteroligands: synthesis, crystal structure and stereochemistry of [NH3(CH2)(2)NH3][VO(O-2)(ox)(pic)].2H(2)O and [NH3(CH2)(2)NH3][VO(O-2)(ox)(pca)]. Dalton transactions : an international journal of organic chemistry. Cambridge: The Royal Society of Chemistry, 2005, vol. 2005, No 13, p. 2305-2311, 9 pp. ISSN 1477-9226.
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Basic information
Original name Racemic monoperoxovanadium(V) complexes with achiral OO and ON donor set heteroligands: synthesis, crystal structure and stereochemistry of [NH3(CH2)(2)NH3][VO(O-2)(ox)(pic)].2H(2)O and [NH3(CH2)(2)NH3][VO(O-2)(ox)(pca)]
Name in Czech Racemické monoperoxovanadičnaté komplexy s achirálními OO a ON donorovými heteroligandy: syntéza, krystalová struktura a stereochemie [NH3(CH2)(2)NH3][VO(O-2)(ox)(pic)].2H(2)O a [NH3(CH2)(2)NH3][VO(O-2)(ox)(pca)]
Authors TATIERSKY, J. (703 Slovakia), P. SCHWENDT (703 Slovakia), M. SIVÁK (703 Slovakia) and Jaromír MAREK (203 Czech Republic, guarantor).
Edition Dalton transactions : an international journal of organic chemistry, Cambridge, The Royal Society of Chemistry, 2005, 1477-9226.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10402 Inorganic and nuclear chemistry
Country of publisher Spain
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 3.003
RIV identification code RIV/00216224:14310/05:00013962
Organization unit Faculty of Science
UT WoS 000229862400013
Keywords in English PEROXOVANADIUM COMPLEXES; ANION-PI INTERACTIONS; MOLECULAR-STRUCTURE; HETEROLIGANDS
Tags ANION-PI INTERACTIONS, HETEROLIGANDS, MOLECULAR-STRUCTURE, peroxovanadium complexes
Tags Reviewed
Changed by Changed by: doc. RNDr. Jaromír Marek, Ph.D., učo 1989. Changed: 19/1/2007 14:56.
Abstract
Monoperoxovanadium(V) complexes, [NH3(CH2)(2)NH3][VO(O-2)(ox)(pic)]center dot 2H(2)O (1) and [NH3(CH2)(2)NH3][VO(O-2)(ox)(pca)] (2) [NH3(CH2)(2)NH3 = ethane-1,2-diammonium(2+), ox = oxalate(2-), pic = pyridine-2-carboxylate(1-), pca = pyrazine-2-carboxylate(1-)], were synthesized and characterized by X-ray analysis, IR and Raman spectroscopies. The five equatorial positions of the pentagonal bipyramid around the vanadium atoms are occupied by the eta(2)-peroxo ligand, two oxygen atoms of the ox, and the nitrogen atom of the pic or pca ligands, respectively. The oxo ligand and the oxygen atom of pic or pca are in the axial positions. Networks of X-H...O (X= C, N or O) hydrogen bonds, and pi-pi interactions between aromatic rings in 1 and anion-pi interactions in 2, determine the molecular packings and build up the supramolecular architecture. Three stereochemical rules for occupation of the donor sites in two-heteroligand [VO(O-2)(L-1)(L-2)] complexes (L-1, L-2 are bidentate neutral or differently charged anionic heteroligands providing an OO, NN or ON donor set) are discussed. 1 and 2 crystallize as racemic compounds. The V-51 NMR spectra proved that the parent complex anions of 1 and 2 partially decompose on dissolution in water to the monoperoxo-ox, - pic or -pca complexes.
Abstract (in Czech)
Monoperoxovanadičnaté komplexy, [NH3(CH2)(2)NH3][VO(O-2)(ox)(pic)].2H(2)O (1) a [NH3(CH2)(2)NH3][VO(O-2)(ox)(pca)] (2) [NH3(CH2)(2)NH3 = ethane-1,2-diammonium(2+), ox = oxalate(2-), pic = pyridine-2-carboxylate(1-), pca = pyrazine-2-carboxylate(1-)] byly připraveny a studovány rtg difrakcí a IR + Raman. spektroskopií. 5 equatoriálních pozic pentagonální bipyramidy kolem V(5) atomů je obsazeno eta(2)-peroxo ligandem, 2 O atomy z ox a N atomy z pic, resp. pca lgandů. Axiální pozice obsazují oxo liogandy a O atomy z pic, resp. pca. Kystalová struktura je stabilizována sítí X-H...O (X= C, N nebo) vodíkových vazeb a pi-pi, resp. anion-pi interakcí vytvářejících 3-D supramolekulární architekturu. V článku jsou dále diskutována stereochemická pravidla platná pro obsazování donor. poloh u heteroligandů.
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