Reactions of Pendant Boryl Groups in Cp–Metal Complexes: Heterocyclic Ring Annelation in a CpIr System (Eur. J. Inorg. Chem. 14/2008)

Christoph Herrmann; Gerald Kehr; Roland Fröhlich; Gerhard Erker

doi:10.1002/ejic.200890035

Reactions of Pendant Boryl Groups in Cp–Metal Complexes: Heterocyclic Ring Annelation in a CpIr System (Eur. J. Inorg. Chem. 14/2008)

European Journal of Inorganic Chemistry ◽

10.1002/ejic.200890035 ◽

2008 ◽

Vol 2008 (14) ◽

pp. 2250-2251

Author(s):

Christoph Herrmann ◽

Gerald Kehr ◽

Roland Fröhlich ◽

Gerhard Erker

Keyword(s):

Metal Complexes ◽

Heterocyclic Ring

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Metal Complexes of Oxadiazole Ligands: An Overview

International Journal of Molecular Sciences ◽

10.3390/ijms20143483 ◽

2019 ◽

Vol 20 (14) ◽

pp. 3483 ◽

Cited By ~ 4

Author(s):

Giovanni Salassa ◽

Alessio Terenzi

Keyword(s):

Metal Complexes ◽

Medicinal Chemistry ◽

Heterocyclic Ring ◽

Organic Ligands ◽

Ring Systems ◽

General Overview ◽

Research Fields ◽

Scientific Disciplines ◽

Synthetic Approaches

Oxadizoles are heterocyclic ring systems that find application in different scientific disciplines, from medicinal chemistry to optoelectronics. Coordination with metals (especially the transition ones) proved to enhance the intrinsic characteristics of these organic ligands and many metal complexes of oxadiazoles showed attractive characteristics for different research fields. In this review, we provide a general overview on different metal complexes and polymers containing oxadiazole moieties, reporting the principal synthetic approaches adopted for their preparation and showing the variety of applications they found in the last 40 years.

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Computational study of heterocyclic thione ligands. Part I. Five-membered heteroatomic thiones possessing an α-nitrogen heteroatom

Canadian Journal of Chemistry ◽

10.1139/v88-439 ◽

1988 ◽

Vol 66 (11) ◽

pp. 2835-2838 ◽

Cited By ~ 6

Author(s):

George S. Kapsomenos ◽

Pericles D. Akrivos

Keyword(s):

Metal Complexes ◽

Computational Study ◽

Heterocyclic Ring ◽

Specific Site ◽

Atomic Charges ◽

Nitrogen Heteroatom

A SCF-MNDO study is made of the equilibrium between the "thiol" and "thione" tautomers of four species possessing a five-membered heterocyclic ring, where nitrogen and oxygen or sulfur are the α-heteroatoms. Based on the computationally derived Δ(ΔHf) values for each pair of forms, evidence is presented for the possibility of co-occurrence of the two forms in solution. The tautomerism is particularly interesting in this class of compounds, since it offers the possibility for a sulfur, nitrogen, or sulfur and nitrogen coordination. The nucleophilicity of each specific site in both forms is discussed in terms of net atomic charges and the HOMO constitution of the molecules. Results concerning the study of metal complexes are generally in accordance with these considerations, since the preference for a specific donation scheme is governed by an HSAB criterion.

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