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Proceedings of the National Academy of Sciences
Article . 2008 . Peer-reviewed
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A porphyrin complex of Gold(I): (Phosphine)gold(I) azides as cation precursors

Authors: David V, Partyka; Thomas J, Robilotto; Matthias, Zeller; Allen D, Hunter; Thomas G, Gray;

A porphyrin complex of Gold(I): (Phosphine)gold(I) azides as cation precursors

Abstract

A silver- and Brönsted acid-free protocol for generating the (tricyclohexylphosphine)gold(I) cation from the corresponding azide complexes is disclosed. The gold(I) cations so liberated are trapped by complexation with octaethylporphyrin. The first structurally authenticated gold(I) porphyrin complex crystallizes with formula C 72 H 112 Au 2 F 12 N 4 P 2 Sb 2 , space group C 2/ c , a = 21.388 (4), b = 19.679 (4), c = 19.231 (3) Å; β = 111.030 (3)°. Solution spectroscopic studies indicate that the di-gold complex fragments on dissolution in organic solvents. Approximate density-functional theory calculations find an electrostatic origin for the binding of two gold(I) centers to the unprotonated nitrogen atoms, despite greater orbital density on the porphyrin meso carbons.

Related Organizations
Keywords

Models, Molecular, Azides, Metalloporphyrins, Phosphines, Cations, Fluorine Compounds, Chloroform, Gold, Gold Compounds

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
30
Top 10%
Top 10%
Top 10%
bronze