Cationic Nickel(II) Complexes with Azine Diphosphines - Structural and Electrochemical Study.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F02%3A27020287" target="_blank" >RIV/67985858:_____/02:27020287 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Cationic Nickel(II) Complexes with Azine Diphosphines - Structural and Electrochemical Study.
Original language description
Nickel(II) complexes of azine diphosphine ligands, PR2CH2C(But)NNC(But)CH2PR2 (R = Ph, But, Pri, C6H11), were prepared for the first time by reactions of anhydrous NiX2 (X = Cl, Br, I) with ligands. Complexes are cationic, the counterion being either simple halide anion or, in two cases, 1/2 [NiCl4]2-. The azine diphosphines are coordinated terdentately in (E,Z) configuration forming thereby a bicyclic ligand frame (five and six membered ring) with diphosphine bite angles 160 - 165 . A balance of stereoelectronic factors governing square planar vs. tetrahedral coordination of the ligands is suggested. Structures of four of the complexes with bulky ligands (R = But, X- = Cl-, Br-, I-; R = C6H11, X- = 1/2 [NiCl]2-) were determined by X-ray diffraction and qualitative Hückel MO calculations on model undistorted square planar [trans-NiX(NH2)(PH3)2]+ were carried out to elucidate the contributions of steric and electronic factors. Two reduction and two oxidation processes depending on the s
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
—

Project
<a href="/en/project/GA203%2F01%2F0554" target="_blank" >GA203/01/0554: New highly active catalysts for the Heck reaction</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)