Oxidative addition - reductive elimination reactions of mono- and bis(aryl)platinum(II) complexes with two amino ligands in fixed trans positions. X-ray crystal structures of (2,6-bis[[dimethylamino]methyl]phenyl)(4-tolyl)platinum(IV) diiodide and (2,6-bis[[dimethylamino]methyl]phenyl)platinum(IV) trichloride

1990 ◽  
Vol 9 (4) ◽  
pp. 903-912 ◽  
Author(s):  
Gerard Van Koten ◽  
Johannus A. M. Van Beek ◽  
Ingrid C. M. Wehman-Ooyevaar ◽  
Fred Muller ◽  
Casper H. Stam ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Oxidative Addition ◽  
Reductive Elimination ◽  
X Ray ◽  
Elimination Reactions ◽  
Methyl Phenyl

Synthesis, characterization, and crystal structures of organonickel(II) complexes coordinated to novel 1-bromo-2,6-bis{[(λ5-phosphanylidene)imino]methyl}benzene NCN-pincer ligands

2019 ◽  
Vol 75 (10) ◽  
pp. 1381-1388
Author(s):  
Gary L. Guillet ◽  
Skyler L. Pitts ◽  
Kirkland W. Sheriff ◽  
Donna N. Rucker ◽  
Aaryn L. Rogers
Keyword(s):  
Crystal Structures ◽  
Diethyl Ether ◽  
Oxidative Addition ◽  
Pincer Ligands ◽  
The Impact ◽  
Methyl Benzene ◽  
Methyl Phenyl ◽  
Cyclohexyl Group

A novel family of four 1-bromo-2,6-bis{[(λ5-phosphanylidene)imino]methyl}benzene ligands has been synthesized and characterized. The phosphiniminomethyl substituents are decorated with either three phenyl groups, two phenyl and one cyclohexyl group, one phenyl and two cyclohexyl groups, or three cyclohexyl groups. Each ligand was metallated using zero-valent nickel through an oxidative addition to form a family of organonickel(II) complexes, namely (2,6-bis{[(triphenyl-λ5-phosphanylidene)imino]methyl}phenyl-κ3 N,C 1,N′)bromidonickel(II) dichloromethane hemisolvate, [NiBr(C44H37N2P2)]·0.5CH2Cl2, (2,6-bis{[(cyclohexyldiphenyl-λ5-phosphanylidene)imino]methyl}phenyl-κ3 N,C 1,N′)bromidonickel(II) diethyl ether hemisolvate, [NiBr(C44H49N2P2)]·0.5C4H10O, (2,6-bis{[(dicyclohexylphenyl-λ5-phosphanylidene)imino]methyl}phenyl-κ3 N,C 1,N′)bromidonickel(II), [NiBr(C44H61N2P2)], and (2,6-bis{[(tricyclohexyl-λ5-phosphanylidene)imino]methyl}phenyl-κ3 N,C 1,N′)bromidonickel(II), [NiBr(C44H73N2P2)]. This family of complexes represents a useful opportunity to investigate the impact of incrementally changing the steric characteristics of a complex on its structure and reactivity.

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