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A sulphur and uranium fiesta! Synthesis, structure, and characterization of neutral terminal uranium(VI) monosulphide, uranium(VI) η2-disulphide, and uranium(IV) phosphine sulphide complexes

Journal Article · · Dalton Transactions
DOI:https://doi.org/10.1039/C8DT02932F· OSTI ID:1477702
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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Here, three new uranium species (C5Me5)2U(=N-2,6-iPr2-C6H3)(=S), (C5Me5)2U(=N-2,6-iPr2-C6H3)(η2-S2), and (C5Me5)2U(=N-2,6-iPr2-C6H3)(S=PMe3) were synthesized and fully characterized by a combination of NMR, IR, and UV/vis–NIR spectroscopies, elemental analysis, and cyclic voltammetry. The solid state structures of (C5Me5)2U(=N-2,6-iPr2-C6H3)(=S) and (C5Me5)2U(=N-2,6-iPr2-C6H3)(η2-S2) were also determined. The compound (C5Me5)2U(=N-2,6-iPr2-C6H3)(=S) is the first neutral uranium complex with a terminal sulphido ligand, and (C5Me5)2U(=N-2,6-iPr2-C6H3)(S=PMe3) is the first uranium compound with a coordinated phosphine sulphide ligand. The phosphine sulphide adduct, (C5Me5)2U(=N-2,6-iPr2-C6H3)(S=PMe3), can be synthesized either by reaction of the uranium(IV) complex (C5Me5)2U(=N-2,6-iPr2-C6H3)(thf) with S=PMe3 or by the reaction of the uranium(VI) terminal sulphido complex (C5Me5)2U(=N-2,6-iPr2-C6H3)(=S) with PMe3.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
LANL Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1477702
Alternate ID(s):
OSTI ID: 1475464
Report Number(s):
LA-UR--18-26567
Journal Information:
Dalton Transactions, Journal Name: Dalton Transactions Vol. 48; ISSN 1477-9226
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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