N,N-Bis(diphenylphosphino)ethylamine

Abstract

In the title compound, C26H25NP2, the diphenyl­phosphino groups are staggered relative to the PNP backbone, even though the ethyl substituent coordinated to the N atom is not sterically bulky. The N atom adapts an almost planar geometry with two P atoms and a C atom of the allyl group attached to it in order to accommodate the steric bulk of the phenyl groups and the alkyl group. The distortion of the trigonal-pyramidal geometry of the nitro­gen is further illustrated by the bond angles which range between 114.0 (1) and 123.7 (1)°. There are no classical inter­molecular inter­actions.

N,N-Bis(diphenylphosphanyl)cyclopentanamine

“…For similar structures, see: Keat et al (1981); Cotton et al (1996); Fei et al (2003); Cloete et al (2008Cloete et al ( , 2009Cloete et al ( , 2010; Engelbrecht et al (2010). 5= 99.707 (5) V = 1189.3 (10) Å 3 Z = 2 Mo K radiation = 0.2 mm À1 T = 100 K 0.19 Â 0.13 Â 0.08 mm…”

N,N-Bis(diphenylphosphanyl)cyclobutanamine

“…For similar structures, see: Keat et al (1981); Cotton et al (1996); Fei et al (2003); Cloete et al (2008Cloete et al ( , 2009Cloete et al ( , 2010; Engelbrecht et al (2010a,b). For diphosphinoamine (PNP) and other P-donor ligands, see: Muller et al (2008); Purcell et al (1995); Otto & Roodt (2001); Otto et al (2005).…”

“…Diphosphinoamine (PNP) and other P donor ligands (Muller et al, 2008;Purcell et al, 1995;Otto et al, 2005;Otto & Roodt, 2001) with various substituents on both the P and N atoms form part of ongoing research in different catalytic olefin transformation reactions such as hydroformylation (Haumann et al, 2004;Crous et al, 2005), metathesis (Booyens et al) methoxycarbonylation (Ferreira et al, 2007) and tetramerization (Cloete et al, 2011). In the title compound, C 29 H 29 NP 2 , Fig.1, all bond distances and angles fall within the range for similar complexes (Keat et al, 1981;Cotton et al, 1996;Fei et al, 2003;Cloete et al, 2008Cloete et al, , 2009Cloete et al, , 2010Engelbrecht et al, 2010aEngelbrecht et al, , 2010b.…”

Bis[N,N-bis(diphenylphosphanyl)pentylamine-κ2P,P′]platinum(II) bis(hexafluoridophosphate) dichloromethane disolvate

“…For related diphenylphosphanyl ligands, see: Keat et al (1981); Cloete et al (2008Cloete et al ( , 2009); Cotton et al (1996); Fei et al (2003). For applications of diphenylphosphanyl ligands and their metal complexes in homogeneous catalysis, see: Steyn et al (1992Steyn et al ( , 1997; Otto et al (1998); Roodt & Steyn (2000); Brink et al (2010); Viljoen et al (2008Viljoen et al ( , 2009aViljoen et al ( ,b, 2010; Steyn et al (2008).…”