Další formáty:
BibTeX
LaTeX
RIS
@article{579041,
author = {Tatiersky, J. and Schwendt, P. and Sivák, M. and Marek, Jaromír},
article_location = {Cambridge},
article_number = {13},
keywords = {PEROXOVANADIUM COMPLEXES; ANION-PI INTERACTIONS; MOLECULAR-STRUCTURE; HETEROLIGANDS},
language = {eng},
issn = {1477-9226},
journal = {Dalton transactions : an international journal of organic chemistry},
title = {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)]},
volume = {2005},
year = {2005}
}
TY - JOUR
ID - 579041
AU - Tatiersky, J. - Schwendt, P. - Sivák, M. - Marek, Jaromír
PY - 2005
TI - 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)]
JF - Dalton transactions : an international journal of organic chemistry
VL - 2005
IS - 13
SP - 2305-2311
EP - 2305-2311
PB - The Royal Society of Chemistry
SN - 14779226
KW - PEROXOVANADIUM COMPLEXES
KW - ANION-PI INTERACTIONS
KW - MOLECULAR-STRUCTURE
KW - HETEROLIGANDS
N2 - 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.
ER -
TATIERSKY, J., P. SCHWENDT, M. SIVÁK a 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)]. Online. \textit{Dalton transactions : an international journal of organic chemistry}. Cambridge: The Royal Society of Chemistry, 2005, roč.~2005, č.~13, s.~2305-2311, 9 s. ISSN~1477-9226. [citováno 2024-04-23]
|
