Komplexchemisches Verhalten von funktionellen Derivaten des 2‐äthyl‐pyridins. VI. Das β‐(Bis‐phenyl‐phosphino)‐äthyl‐pyridin‐(2)

Abstract

β‐(Bis‐phenyl‐phosphino)‐äthyl‐pyridin‐(2) (PhPäP) bildet mit Salzen des Nickel(II), Kobalt(II) und Zink(II) vorwiegend 1,1‐Komplexe, denen auf Grund ihres physikalischen Verhaltens eine verzerrt tetraedrische Struktur zugeschrieben wird. Eine Ausnahme macht dabei die diamagnetische Verbindung Ni(PhPäP)(NCS)2. Diamagnetismus zeigen auch die 1,2‐Komplexe Ni(PhPäP)2J2 und [Ni(PhPäP)2](ClO4)2. Sie sind wahrscheinlich verzerrt oktaedrisch bzw. planar‐quadratisch gebaut. Von Kupfer(I) konnten die Komplexe Cu(PhPäP)Cl und Cu(PhPäP)Br dargestellt werden.

Silver coordination complexes of 2-(diphenylphosphinomethyl)aminopyridine with weakly interacting counterions

“…Crystals were obtained by slow vapor diffusion of diethyl ether into a solution of THF containing 3 at 5°C. 1 …”

“…Crystals were obtained by slow vapor diffusion of diethyl ether into a solution of methanol containing 4 at 5°C. 1 (5) One equivalent of DPAP-2 (0.101 g, 0.334 mmol) in 5 mL of DCM was reacted with two equivalents of AgBF 4 (0.129 g, 0.663 mmol) in 5 mL of DCM. To this mixture, two equivalents of 5,5'-dmbpy (0.128 g, 0.695 mmol) in 5 mL of DCM was added.…”

“…Crystals were obtained by slow vapor diffusion of diethyl ether into a solution of methanol containing 2 at 5°C. 1 6 An equimolar amount of DPAP-2 (0.100 g, 0.331 mmol) in 5 mL of DCM was reacted with Agtfa (0.0730 g, 0.330 mmol) in 5 mL of DCM. After the solution stirred for 15 minutes, the solvent was removed under vacuum to yield crude product.…”

“…Over the last 70 years, pyridyl-functionalized phosphine ligands have garnered significant attention due to their versatile coordination behavior when compared to homonuclear ligands [1][2][3][4][5][6][7][8][9][10][11][12][13]. The hemilabile nature of the P,N-ligand family results in complexes that encompass macrocyclic, multi-metal, and hetero-metallic complexes which possess valuable properties, such as conductivity, photoluminescence, magnetism, and catalysis [14][15][16][17][18][19].…”

<b>Synthesis and characterisation of some metal complexes of hybrid phosphorus-nitrogenligands: the crystal structure of 1-(diphenylphosphino)-2-(2-pyridyl)ethane cobalt(II) chloride</b>

“…The ligand dppp (Aldrich) was used as purchased without further purification. The ligand dppe was synthesized using a modified procedure of the Uhlig and Maaser method [18]. A mixture of freshly-distilled vinyl pyridine (4.9 g, 46 mmol), diphenylphosphine (8.2 g, 44 mmol) and 2.0 mL of acetic acid were refluxed at 150 ºC for 8 hours under nitrogen atmosphere.…”