Solution and Solid-State Characterization of PbSe Precursors

Prathamesh B. Vartak, Zhongyong Wang, Thomas L. Groy, Ryan J. Trovitch, Robert Y. Wang

Research output: Contribution to journalArticle

Abstract

The addition of lead to diphenyl diselenide in ethylenediamine (en) or pyridine (py) allowed for the observation of the solvento complexes, (en)Pb(SePh)2 or (py)2Pb(SePh)2, respectively. Performing this reaction in dimethyl sulfoxide and subsequent crystallization was found to afford Pb(SePh)2. Inductively coupled plasma optical emission spectroscopy revealed a 1:2 lead to selenium ratio for all three complexes. Nuclear magnetic resonance spectroscopy confirms that Pb(SePh)2 is readily solubilized by ethylenediamine, and electrospray ionization mass spectrometry supports the presence of Pb(SePh)2 moieties in solution. Single-crystal X-ray diffraction analysis of the pyridine adduct, (py)2Pb(SePh)2, revealed a seesaw molecular geometry featuring equatorial phenylselenolate ligands. Crystals of Pb(SePh)2 grown from dimethyl sulfoxide revealed one-dimensional polymeric chains of Pb(SePh)2. We believe that the lead(II) phenylselenolate complexes form via an oxidative addition reaction.

Original languageEnglish
Pages (from-to)1949-1955
Number of pages7
JournalACS Omega
Volume5
Issue number4
DOIs
Publication statusPublished - Feb 4 2020

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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