Racemic vanadium(V) oxo monoperoxo complexes with two achiral
bidentate heteroligands. Synthesis, characterization, crystal
structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and
Pr4N[VO(O2)(ox)(phen)]

J 2004

Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]

TATIERSKY, J., P. SCHWENDT, Jaromír MAREK a M. SIVÁK

Základní údaje

Originální název

Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]

Autoři

TATIERSKY, J., P. SCHWENDT, Jaromír MAREK a M. SIVÁK

Vydání

New Journal of Chemistry, Cambridge, Royal Soc Chemistry, 2004, 1144-0546

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.735

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000188036800020

Klíčová slova anglicky

vanadium(V); structure; X-ray; NMR; IR and Raman spectroscopies

Štítky

IR and Raman spectroscopies, NMR, structure, vanadium(V), x-ray

Změněno: 20. 1. 2004 11:34, doc. RNDr. Jaromír Marek, Ph.D.

Anotace

V originále

Two new racemic monoperoxo complexes of vanadium(V), K[VO(O2)(ox)(bpy)].3H2O (1) and Pr4N[VO(O2)(ox)(phen)](2) [bpy=2,2-bipyridine, phen=1,10-phenanthroline, ox=oxalate(2-) and Pr4N=tetra(n-propyl)ammonium(1+)], were synthesized. The solid complexes were characterized by X-ray structure analysis and IR and Raman spectroscopies. The coordination polyhedron of vanadium is a distorted pentagonal bipyramid. The five equatorial positions are occupied by the nu2-peroxo oxygen atoms, two oxygen atoms of the ox ligand and one nitrogen atom of bpy (resp. phen). The oxo ligand and the second nitrogen atom of bpy (resp. phen) are in axial positions. In each structure, the intermolecular distance, 3.5A, between the pairs of parallel bpy or phen ligands indicates a pi-pi interaction between the aromatic rings. The UV-vis spectra of aqueous solutions exhibit characteristic peroxo-to-vanadium CT bands at 422 nm (=32 m2 mol-1) for 1 and 428 nm (=29.4 m2 mol-1) for 2. From the 51V NMR measurements, the isomerization based on a mutual ox-bpy or ox-phen position change does not occur in aqueous solutions. The structure of both complex anions is maintained at 295 K for about 6 h after dissolution in water.

Citovat

TATIERSKY, J., P. SCHWENDT, Jaromír MAREK a M. SIVÁK. Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]. New Journal of Chemistry. Cambridge: Royal Soc Chemistry, 2004, roč. 28, č. 1, s. 127 - 133. ISSN 1144-0546.

@article{492309,
   author = {Tatiersky, J. and Schwendt, P. and Marek, Jaromír and Sivák, M.},
   article_location = {Cambridge},
   article_number = {1},
   keywords = {vanadium(V); structure; X-ray; NMR; IR and Raman spectroscopies},
   language = {eng},
   issn = {1144-0546},
   journal = {New Journal of Chemistry},
   title = {Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]},
   volume = {28},
   year = {2004}
}

TY  - JOUR
ID  - 492309
AU  - Tatiersky, J. - Schwendt, P. - Marek, Jaromír - Sivák, M.
PY  - 2004
TI  - Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]
JF  - New Journal of Chemistry
VL  - 28
IS  - 1
SP  - 127 - 133
EP  - 127 - 133
PB  - Royal Soc Chemistry
SN  - 11440546
KW  - vanadium(V)
KW  - structure
KW  - X-ray
KW  - NMR
KW  - IR and Raman spectroscopies
N2  - Two new racemic monoperoxo complexes of vanadium(V), K[VO(O2)(ox)(bpy)].3H2O (1) and Pr4N[VO(O2)(ox)(phen)](2) [bpy=2,2-bipyridine, phen=1,10-phenanthroline, ox=oxalate(2-) and Pr4N=tetra(n-propyl)ammonium(1+)], were synthesized. The solid complexes were characterized by X-ray structure analysis and IR and Raman spectroscopies. The coordination polyhedron of vanadium is a distorted pentagonal bipyramid. The five equatorial positions are occupied by the nu2-peroxo oxygen atoms, two oxygen atoms of the ox ligand and one nitrogen atom of bpy (resp. phen). The oxo ligand and the second nitrogen atom of bpy (resp. phen) are in axial positions. In each structure, the intermolecular distance, 3.5A, between the pairs of parallel bpy or phen ligands indicates a pi-pi interaction between the aromatic rings. The UV-vis spectra of aqueous solutions exhibit characteristic peroxo-to-vanadium CT bands at 422 nm (=32 m2 mol-1) for 1 and 428 nm (=29.4 m2 mol-1) for 2. From the 51V NMR measurements, the isomerization based on a mutual ox-bpy or ox-phen position change does not occur in aqueous solutions. The structure of both complex anions is maintained at 295 K for about 6 h after dissolution in water.
ER  -

TATIERSKY, J., P. SCHWENDT, Jaromír MAREK a M. SIVÁK. Racemic vanadium(V) oxo monoperoxo complexes with two achiral bidentate heteroligands. Synthesis, characterization, crystal structure and stereochemistry of K[VO(O2)(ox)(bpy)].3H2O and Pr4N[VO(O2)(ox)(phen)]. \textit{New Journal of Chemistry}. Cambridge: Royal Soc Chemistry, 2004, roč.~28, č.~1, s.~127 - 133. ISSN~1144-0546.

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