Synthesis of the molecular amalgam [{AuHg2(o-C6F4)3}{Hg3(o-C6F4)3}]-: A rare example of a heterometallic homoleptic metallacycle

  1. Lasanta, T. 1
  2. López-De-Luzuriaga, J.M. 1
  3. Monge, M. 1
  4. Olmos, M.E. 1
  5. Pascual, D. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Journal:
Dalton Transactions

ISSN: 1477-9226

Year of publication: 2016

Volume: 45

Issue: 15

Pages: 6334-6338

Type: Article

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DOI: 10.1039/C6DT00934D SCOPUS: 2-s2.0-84964687559 WoS: WOS:000373994800004 GOOGLE SCHOLAR

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Abstract

The preparation of homoleptic heterometallic complexes still remains a challenge. Herein, we report the synthesis and characterization of [Au(PMe3)2][{AuHg2(o-C6F4)3}{Hg3(o-C6F4)3}] (1), a gold-mercury homoleptic metallacycle. The crystal structure of 1 displays two [Hg2M(o-C6F4)3] (M = AuI, HgII) units linked through a short Au⋯Hg contact of 3.097(2) Å, the strongest unsupported AuI⋯HgII interaction described to date. Theoretical calculations quantify the interaction between the trimetalic units as -199 kJ mol-1, a surprisingly strong value. © The Royal Society of Chemistry 2016.