Structural and catalytic properties of the [Ni(BIPHEP)X-2] complexes, BIPHEP=2,2-diphenylphosphino-1,1-biphenyl; X = Cl, Br
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10436162" target="_blank" >RIV/00216208:11310/21:10436162 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=27FdDVqYVH" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=27FdDVqYVH</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ica.2021.120300" target="_blank" >10.1016/j.ica.2021.120300</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Structural and catalytic properties of the [Ni(BIPHEP)X-2] complexes, BIPHEP=2,2-diphenylphosphino-1,1-biphenyl; X = Cl, Br
Popis výsledku v původním jazyce
The synthesis and catalytic properties in Kumada C-C coupling of the [Ni(BIPHEP)X-2] complexes, X = Cl (1), Br (2), are described. The crystal structures of the BIPHEP ligand and 2 are also presented and compared with previously reported crystal structures of atropisomeric bidentate phosphine ligands (P,P) and related [M (P,P)X-2] complexes (M = Ni, Pd, Pt). BIPHEP crystallizes in the C2/c space group, with both enantiomers present in the unit cell. This is consistent with BIPHEP being a "tropos" ligand. Complex 2 crystallizes in the P21/a space group. There are two symmetry-independent molecules in the asymmetric unit, namely 2a and 2b, in which the BIPHEP ligand adopts the S or the R configuration, respectively. Complexes 2a and 2b exhibit a severely tetrahedrally-distorted square planar NiP2Br2 coordination sphere, with a PNiP bite angle of 93.3 degrees and 94.7 degrees, respectively. The observed catalytic behavior of complexes 1 and 2 in the Kumada coupling between p-tert-butyl-halogenobenzene and p-tolylmagnesium chloride is benchmarked against that of [Ni(dppp)Cl-2], dppp = 1,3-bis(diphenylphoshpino)propane. However, all three complexes are catalytically inactive in the Suzuki-Miyaura coupling reaction.
Název v anglickém jazyce
Structural and catalytic properties of the [Ni(BIPHEP)X-2] complexes, BIPHEP=2,2-diphenylphosphino-1,1-biphenyl; X = Cl, Br
Popis výsledku anglicky
The synthesis and catalytic properties in Kumada C-C coupling of the [Ni(BIPHEP)X-2] complexes, X = Cl (1), Br (2), are described. The crystal structures of the BIPHEP ligand and 2 are also presented and compared with previously reported crystal structures of atropisomeric bidentate phosphine ligands (P,P) and related [M (P,P)X-2] complexes (M = Ni, Pd, Pt). BIPHEP crystallizes in the C2/c space group, with both enantiomers present in the unit cell. This is consistent with BIPHEP being a "tropos" ligand. Complex 2 crystallizes in the P21/a space group. There are two symmetry-independent molecules in the asymmetric unit, namely 2a and 2b, in which the BIPHEP ligand adopts the S or the R configuration, respectively. Complexes 2a and 2b exhibit a severely tetrahedrally-distorted square planar NiP2Br2 coordination sphere, with a PNiP bite angle of 93.3 degrees and 94.7 degrees, respectively. The observed catalytic behavior of complexes 1 and 2 in the Kumada coupling between p-tert-butyl-halogenobenzene and p-tolylmagnesium chloride is benchmarked against that of [Ni(dppp)Cl-2], dppp = 1,3-bis(diphenylphoshpino)propane. However, all three complexes are catalytically inactive in the Suzuki-Miyaura coupling reaction.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10402 - Inorganic and nuclear chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Inorganica Chimica Acta
ISSN
0020-1693
e-ISSN
—
Svazek periodika
522
Číslo periodika v rámci svazku
July
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
7
Strana od-do
120300
Kód UT WoS článku
000647692400010
EID výsledku v databázi Scopus
2-s2.0-85103951792