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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Tryptophan moiety ligand based tri/tetranuclear Ni(II) complexes: syntheses, structure and magnetic properties
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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