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Title: Metal–Ligand Multiple Bonding in Thorium Phosphorus and Thorium Arsenic Complexes

Journal Article · · Chemistry - A European Journal
 [1];  [2];  [2];  [2]; ORCiD logo [1]
  1. Department of Chemistry University of Missouri Columbia MO 65211 USA
  2. Department of Chemistry California State University East Bay Hayward CA 94542 USA

Abstract The complexes (C 5 Me 5 ) 2 Th(EHTipp) 2 , (E=P or As; Tipp=2,4,6‐triisopropylphenyl), provide a ligand framework that results in facile access to rare Th–E multiple bonds. The reaction of (C 5 Me 5 ) 2 Th(EHTipp) 2 with KN(SiMe 3 ) 2 , proceeds cleanly to the desired bridging phosphinidiide or arsinidiide complex, [{(C 5 Me 5 ) 2 Th(μ 2 ‐ETipp)(μ 2 ‐EHTipp)}K] 2 under ambient conditions. In the absence of a chelating agent, the potassium cation of one monomeric unit interacts with the aryl ring of a second monomer to form a bridged dimer. In the presence of 2,2,2‐cryptand, the terminal phosphinidene complex, [(C 5 Me 5 ) 2 Th=PTipp(PHTipp)][K(2,2,2‐cryptand)] is isolated. Using X‐ray crystallographic analysis, we have determined these complexes display the shortest Th−P and Th−As bond lengths reported.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC-0014174
OSTI ID:
1407832
Journal Information:
Chemistry - A European Journal, Journal Name: Chemistry - A European Journal Vol. 23 Journal Issue: 66; ISSN 0947-6539
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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