Effect of Arsenic Coordination State on the Structure, Aromaticity, and Optical Properties of Dithienoarsoles

A silylated derivative of 4‐phenyl‐dithieno[3,2‐b:2′,3′‐d]arsole (DTAs) was synthesized, and the effect of coordinating of DTAs compounds to Pd on their structural and optical properties was investigated. Coordination of the As to Pd was found to increase the structural aromaticity of the ring syste...

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Bibliographic Details
Published inEuropean journal of inorganic chemistry Vol. 2019; no. 11-12; pp. 1539 - 1543
Main Authors Green, Joshua P, Gupta, Arvind K, Orthaber, Andreas
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 01.03.2019
Subjects
Aromaticity
Arsenic
Harmonic oscillators
Inorganic chemistry
Optical properties
Organic chemistry
Palladium
Phosphorus
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Summary:A silylated derivative of 4‐phenyl‐dithieno[3,2‐b:2′,3′‐d]arsole (DTAs) was synthesized, and the effect of coordinating of DTAs compounds to Pd on their structural and optical properties was investigated. Coordination of the As to Pd was found to increase the structural aromaticity of the ring system as measured by the harmonic oscillator measure of heterocyclic electron delocalization (HOMHED), and the pyramidalization of the As atoms was also found to show a good correlation with the HOMHED values. However, coordination had a more subtle impact on the optical properties than seen for phosphorus‐containing analogues as the metal‐ligand interactions were weaker.Dedicated to Professor Dr. Edgar Niecke and Prof. Dr. Koop Lammertsma on the occasions of their 80th and 70th birthdays, respectively, for their inspiring contributions to phosphorus chemistry.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201801169