Tryptophan moiety ligand based tri/tetranuclear Ni(II) complexes: syntheses, structure and magnetic properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10448509" target="_blank" >RIV/00216208:11310/22:10448509 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=--1iMb__DW" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=--1iMb__DW</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d2nj02467e" target="_blank" >10.1039/d2nj02467e</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tryptophan moiety ligand based tri/tetranuclear Ni(II) complexes: syntheses, structure and magnetic properties

Popis výsledku v původním jazyce

Tetra/trinuclear Ni(II) compLexes, namely [Ni4(L)4(H2O)(4)] . 5(dmf) . 7(H2O) (1) and [Ni3(L)2(bz)(2)(dmf)(2)(H2O)(2)] (2) [H2L = N-(2-(hydroxy)-3-methoxybenzylidene)tryptophan); dmf = dimethyl formamide, bz = benzoate anion], have been synthesized and characterized by X-ray single crystal structure determination. The structural characterization discloses a tetranuclear Ni(II) complex for 1, whereas in complex 2 the competition between the coordination ability of the benzoate anion and the bridging mode of the Schiff base leads to a trinuclear species. Two of the chiral ligands in 1, acting as pentadentate, connect all metal centers, while the other two act as tri-chelating towards the side located nickel centers. On the other hand, in complex 2 the two Schiff bases act as tetradentate connecting the nickel centers in pairs in addition to the benzoate anions. Variable-temperature magnetic susceptibility data, collected in the temperature range of 2-300 K under an applied field of 0.1 Tesla, indicate weak antiferromagnetic interactions in both the complexes in agreement with Ni-O-Ni bridging angles larger than 100° measured within the molecular structures.

Název v anglickém jazyce

Tryptophan moiety ligand based tri/tetranuclear Ni(II) complexes: syntheses, structure and magnetic properties

Popis výsledku anglicky

Tetra/trinuclear Ni(II) compLexes, namely [Ni4(L)4(H2O)(4)] . 5(dmf) . 7(H2O) (1) and [Ni3(L)2(bz)(2)(dmf)(2)(H2O)(2)] (2) [H2L = N-(2-(hydroxy)-3-methoxybenzylidene)tryptophan); dmf = dimethyl formamide, bz = benzoate anion], have been synthesized and characterized by X-ray single crystal structure determination. The structural characterization discloses a tetranuclear Ni(II) complex for 1, whereas in complex 2 the competition between the coordination ability of the benzoate anion and the bridging mode of the Schiff base leads to a trinuclear species. Two of the chiral ligands in 1, acting as pentadentate, connect all metal centers, while the other two act as tri-chelating towards the side located nickel centers. On the other hand, in complex 2 the two Schiff bases act as tetradentate connecting the nickel centers in pairs in addition to the benzoate anions. Variable-temperature magnetic susceptibility data, collected in the temperature range of 2-300 K under an applied field of 0.1 Tesla, indicate weak antiferromagnetic interactions in both the complexes in agreement with Ni-O-Ni bridging angles larger than 100° measured within the molecular structures.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

1369-9261

Svazek periodika

46

Číslo periodika v rámci svazku

35

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

16899-16906

Kód UT WoS článku

000842488700001

EID výsledku v databázi Scopus

2-s2.0-85136645099