More Like this

1. Synthesis and Oxidation of Dirhenium C 4 , C 6 , and C 8 Complexes of the Formula (η 5 -C 5 Me 5 )Re(NO)(PR 3 )(C⋮C) n (R 3 P)(ON)Re(η 5 -C 5 Me 5 ) (R = 4-C 6 H 4 R‘, c-C 6 H 11 ):  In Search of Dications and Radical Cations with Enhanced Stabilities †

   https://doi.org/10.1021/om000961m  

   Meyer, Wayne E. ; Amoroso, Angelo J. ; Horn, Clemens R. ; Jaeger, Monika ; Gladysz, J. A. ( March 2001 , Organometallics)
2. Evaluating electrochemical accessibility of 4f n 5d 1 and 4f n+1 Ln( ii ) ions in (C 5 H 4 SiMe 3 ) 3 Ln and (C 5 Me 4 H) 3 Ln complexes

   https://doi.org/10.1039/D1DT02427B  

   Trinh, Michael T. ; Wedal, Justin C. ; Evans, William J. ( October 2021 , Dalton Transactions)

   The reduction potentials (reported vs. Fc + /Fc) for a series of Cp′ 3 Ln complexes (Cp′ = C 5 H 4 SiMe 3 , Ln = lanthanide) were determined via electrochemistry in THF with [ n Bu 4 N][BPh 4 ] as the supporting electrolyte. The Ln( iii )/Ln( ii ) reduction potentials for Ln = Eu, Yb, Sm, and Tm (−1.07 to −2.83 V) follow the expected trend for stability of 4f 7 , 4f 14 , 4f 6 , and 4f 13 Ln( ii ) ions, respectively. The reduction potentials for Ln = Pr, Nd, Gd, Tb, Dy, Ho, Er, and Lu, that form 4f n 5d 1 Ln( ii ) ions ( n = 2–14), fall in a narrow range of −2.95 V to −3.14 V. Only cathodic events were observed for La and Ce at −3.36 V and −3.43 V, respectively. The reduction potentials of the Ln( ii ) compounds [K(2.2.2-cryptand)][Cp′ 3 Ln] (Ln = Pr, Sm, Eu) match those of the Cp′ 3 Ln complexes. The reduction potentials of nine (C 5 Me 4 H) 3 Ln complexes were also studied and found to be 0.05–0.24 V more negative than those of the Cp′ 3 Ln compounds. 

   more » « less
3. Photoactivated Ru chemical vapor deposition using (η 3 -allyl)Ru(CO) 3 X (X = Cl, Br, I): From molecular adsorption to Ru thin film deposition

   https://doi.org/10.1116/6.0001490  

   Salazar, Bryan G. ; Brewer, Christopher R. ; McElwee-White, Lisa ; Walker, Amy V. ( March 2022 , Journal of Vacuum Science & Technology A)
4. A New Route to Heterobimetallic C 3 Complexes via C⋮C Metatheses of 1,3-Diynyl Ligands:  Synthesis and Structure of (η 5 -C 5 Me 5 )Re(NO)(PPh 3 )(C⋮CC⋮)W(O- t -Bu) 3

   https://doi.org/10.1021/om990766b  

   Dembinski, Roman ; Szafert, Slawomir ; Haquette, Pierre ; Lis, Tadeusz ; Gladysz, J. A. ( December 1999 , Organometallics)
5. Crystal structure of the [(THF)Cs(μ-η 5 :η 5 -Cp′) 3 Yb] n oligomer

   https://doi.org/10.1107/S2056989020008051  

   Huh, Daniel N. ; Ziller, Joseph W. ; Evans, William J. ( July 2020 , Acta Crystallographica Section E Crystallographic Communications)

   null (Ed.)

   The green compound poly[(tetrahydrofuran)tris[μ-η 5 :η 5 -1-(trimethylsilyl)cyclopentadienyl]caesium(I)ytterbium(II)], [CsYb(C 8 H 13 Si) 3 (C 4 H 8 O)] n or [(THF)Cs(μ-η 5 :η 5 -Cp′) 3 Yb II ] n was synthesized by reduction of a red THF solution of (C 5 H 4 SiMe 3 ) 3 Yb III with excess Cs metal and identified by X-ray diffraction. The compound crystallizes as a two-dimensional array of hexagons with alternating Cs I and Yb II ions at the vertices and cyclopentadienyl groups bridging each edge. This, based off the six-electron cyclopentadienyl rings occupying three coordination positions, gives a formally nine-coordinate tris(cyclopentadienyl) coordination environment to Yb and the Cs is ten-coordinate due to the three cyclopentadienyl rings and a coordinated molecule of THF. The complex comprises layers of Cs 3 Yb 3 hexagons with THF ligands and Me 3 Si groups in between the layers. The Yb—C metrical parameters are consistent with a 4 f 14 Yb II electron configuration. 

   more » « less