2002
DOI: 10.1016/s0022-328x(02)01818-1
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Phosphane- and phosphorane Janus Head ligands in metal coordination

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Cited by 75 publications
(45 citation statements)
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“…The Py 2 P À anion easily adopts a non-conjugated butterfly conformation in various metal complexes [10] and is not restricted to the planar arrangement as found in the Py 2 CH À [11] or the Py 2 N À anion. [12] Remarkably, the phosphanide is stable even after dual P = N bond cleavage in Py 2 P(NHSiMe 3 )(NSiMe 3 ) with organometallic moieties.…”
mentioning
confidence: 94%
“…The Py 2 P À anion easily adopts a non-conjugated butterfly conformation in various metal complexes [10] and is not restricted to the planar arrangement as found in the Py 2 CH À [11] or the Py 2 N À anion. [12] Remarkably, the phosphanide is stable even after dual P = N bond cleavage in Py 2 P(NHSiMe 3 )(NSiMe 3 ) with organometallic moieties.…”
mentioning
confidence: 94%
“…[10] When [LiA C H T U N G T R E N N U N G {(C 6 H 4 )NMe 2 }] is treated with SA C H T U N G T R E N N U N G (NtBu) 2 in pentane at À78 8C and the solution stored for several days at À25 8C, crystals suitable for X-ray structure determination are obtained. The molecular structure of the resulting [(tBuN) 2 SA C H T U N G T R E N N U N G {LiMe 2 NA C H T U N G T R E N N U N G (C 6 H 4 )SA C H T U N G T R E N N U N G (NtBu) 2 } 2 ] (1) is shown in Figure 1. Compound 1 is the product of a nucleophilic addition reaction between the lithiated amine and the sulfur atom of SA C H T U N G T R E N N U N G (NtBu) 2 .…”
Section: Resultsmentioning
confidence: 99%
“…[2] They are named after the roman god Janus, who has two faces which are said to be guarding entry and exit. Likewise those ligands have at least two donor sites (i.e., faces) that point into opposite directions.…”
Section: Introductionmentioning
confidence: 99%
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“…[8] Hier präsentieren wir die experimentelle und theoretische Elektronendichte von [Me 2 Al(m-Py) 2 [9] die an beide Stickstoffatome des Pyridylrings koordiniert ist, wirft die Frage auf, ob das Phosphoratom als Zwei-(E in Schema 2) oder als Vier-Elektronen-Donor (F in Schema 2) betrachtet werden sollte. Das Py 2 P À -Ion nimmt in vielen Metallkomplexen [10] bereitwillig eine nicht-konjugierte Schmetterlingskonformation ein und ist nicht auf die planare Anordnung beschränkt wie das Py 2 CH À - [11] oder das Py 2 N À -Ion. [12] Bemerkenswerterweise ist das Phosphanid sogar nach zweifacher P = N-Bindungsspaltung mit Organo- metallverbindungen aus Py 2 P(NHSiMe 3 )(NSiMe 3 ) zugäng-lich.…”
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