Halide Ligands-More Than Just sigma-Donors? A Structural and Spectroscopic Study of Homologous Organonickel Complexes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00319282" target="_blank" >RIV/61388955:_____/08:00319282 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Halide Ligands-More Than Just sigma-Donors? A Structural and Spectroscopic Study of Homologous Organonickel Complexes
Original language description
The isoleptic organonickel complexes [(bpy)Ni(Mes)X] (bpy = 2,2'-bipyridine; Mes = 2,4,6-trimethylphenyl; X = F, Cl, Br, or l, and for comparison X = OMe and SCN) have been investigated by multiple spectroscopic means. Their structures have been determined in part by single-crystal X-ray diffraction, the full series by extended X-ray absorption fine structure. The long-wavelength charge transfer absorptions (mainly metal-to-ligand charge transfer) obtain contributions from the mesityl coligand but are almost invariable upon variation of X. UV-vis spectroscopy allowed investigation of the solvolysis reaction [(bpy)Ni(Mes)X] + Solv reversible arrow [(bpy)Ni(Mes)(Solv)](+) + X-, which occurs very fast for X = I (k = 0.176(4) M-1 s(-1)) or Br but very slowfor X = Cl (k = 5.18(5) x 10(-5) M-1 cm(-1)) or F.
Czech name
Halidové ligandy ? vice než jen .sigma.-donory? Strukturní a spektroskopická studie homologických organoniklových komplexů
Czech description
Spektroskopickými metodami a DFT výpočty byl pro organoniklové komplexy [(bpy)Ni(Mes)X] (bpy = 2,2?-bipyridin; Mes = 2,4,6-trimethylphenyl; X = F, Cl, Br or I a pro srovnání X = OMe a SCN) zjištěn vliv záměny ligandů X na elektronovou strukturu a fyzikální vlastnosti. DFT výpočty geometrie, elektronických stavů a spektrálních přechodů (TD DFT) pomohly objasnit roli X ko-ligandů v těchto komplexech. Kombinace metod potvrdila silnou kovalentní Ni?X vazbu, ale pouze slabou .pi.-donaci.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Inorganic Chemistry
ISSN
0020-1669
e-ISSN
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Volume of the periodical
47
Issue of the periodical within the volume
23
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000261142900061
EID of the result in the Scopus database
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