Thorium(IV) and uranium(IV) carbamates

Bagnall, Kenneth W.; Yanir, E.

doi:10.1016/0022-1902(74)80810-9

Cited by 42 publications

(23 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the insertion of CO2 into M−N bonds was only sparingly applied to lanthanides, actinides and late transition metals [132,[187][188][189] in the beginning. The scenario changed over the last 15 years, as several carbamato complexes obtained by this methodology were On the other hand, the insertion of CO 2 into M−N bonds was only sparingly applied to lanthanides, actinides and late transition metals [132,[187][188][189] in the beginning. The scenario changed over the last 15 years, as several carbamato complexes obtained by this methodology were reported, and especially organometallic species.…”

Section: Heteroleptic Carbamato Complexesmentioning

confidence: 99%

“…Indeed, [Ti(O 2 CNMe 2 ) 4 ], the first carbamato complex to be reported, was obtained by exhaustive carbonation of the N , N -dimethylamido complex of titanium(IV), Ti(NMe 2 ) 4 [ 122 ]. Since then, the M(NR 2 ) n /CO 2 route has been successfully employed in the preparation of homoleptic complexes of the main group metals [ 42 , 123 ], early transition elements [ 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 ], uranium(IV) and thorium(IV) [ 132 ]. In 2010, Kennedy et al applied this methodology to obtain Li + , Na + and K + 2,2,6,6-tetramethylpiperidine (TMP) carbamates [ 133 ].…”

Section: Synthesis Structure and Reactivity Of Metal Carbamatesmentioning

confidence: 99%

“…On the other hand, the insertion of CO 2 into M−N bonds was only sparingly applied to lanthanides, actinides and late transition metals [ 132 , 187 , 188 , 189 ] in the beginning. The scenario changed over the last 15 years, as several carbamato complexes obtained by this methodology were reported, and especially organometallic species.…”

Section: Synthesis Structure and Reactivity Of Metal Carbamatesmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

View full text Add to dashboard Cite

Following a related review dating back to 2003, the present review discusses in detail the various synthetic, structural and reactivity aspects of metal species containing one or more carbamato ligands, representing a large family of compounds across all the periodic table. A preliminary overview is provided on the reactivity of carbon dioxide with amines, and emphasis is given to recent findings concerning applications in various fields.

show abstract

Section: Heteroleptic Carbamato Complexesmentioning

confidence: 99%

Section: Synthesis Structure and Reactivity Of Metal Carbamatesmentioning

confidence: 99%

Section: Synthesis Structure and Reactivity Of Metal Carbamatesmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

View full text Add to dashboard Cite

show abstract

“…TiBr4, ZrCl4, HfCl4, n BuLi, (Aldrich X-ray quality crystals were grown from THF/hexanes mixture at room temperature. 1…”

Section: = + [ − ]mentioning

confidence: 99%

Coordination Chemistry and QTAIM Analysis of Homoleptic Dithiocarbamate Complexes, M(S₂CNⁱPr₂)₄ (M = Ti, Zr, Hf, Th, U, Np)

et al. 2018

View full text Add to dashboard Cite

In a systematic approach to comparing the molecular structure and bonding in homoleptic transition-metal and actinide complexes, a series of dithiocarbamates, M(SCNPr) (M = Ti, Zr, Hf, Th, U, Np), have been synthesized. These complexes have been characterized through spectroscopic and X-ray crystallographic analysis, and their bonding has been examined using density functional theory calculations. Computational results indicate that the covalent character associated with the M-S bonds shows the trend of Hf < Zr < Th < Ti < U ≈ Np.

show abstract

“…Dithiocarbamates are an important class of ligands in the coordination chemistry of metals and main-group elements. The actinides are no exception because homoleptic dithiocarbamate complexes of thorium(IV), 219,220 uranium(IV), 221,222 neptunium(III), 155 neptunium(IV), 221,223 and plutonium(IV) 213 have been reported. Dithiocarbamate complexes bearing isopropyl groups have been examined but not structurally characterized, and we saw the opportunity to create a series of tetravalent complexes of group IV (titanium, 224,225 zirconium, 226,227 and hafnium 228 ), thorium, uranium, and neptunium to investigate their molecular and electronic structures.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and reactivity of low-valent uranium and neptunium complexes

Myers¹

View full text Add to dashboard Cite

Chapter 1 reports the synthesis and characterization of U(IV) and Np(IV) selenium bis(phenolate) complexes. The reaction of the U(IV) complex with half an equivalent of p-benzoquinone results in the formation of a U(V)--U(V) species with a bridging reduced quinone. This represents a rare example of high-valent uranium chemistry as well as a rare example of a neptunium aryloxide complex. In Chapters 2 and 3 the synthesis and characterization of a rare U(III) hydrocarbyl complex, U[[eta]4-Me2NC(H)C6H5]3, and the first structurally characterized transuranic hydrocarbyl complex, Np[[eta]4-Me2NC(H)C6H5]3, complex, has been generated with four equivalents of the K[Me2NC(H)C6H5] ligand. In the analogous Th(IV) reaction, C-H bond activation of a methyl group of one dimethylamine was observed yielding Th[[eta]4-Me2NC(H)C6H5]2[[eta]5-(CH2)MeNC(H)C6H5] with a dianionic DMBA ligand. The utility of these complexes as starting materials has been analyzed using a bulky dithiocarboxylate ligand to yield tetravalent actinide species for U and Th but Np maintains the trivalent oxidation state. Chapter 4 describes the on-going synthesis and reactivity of Np(OAr)3 (Ar = 2,6-di-tert-butylphenoxide) utilizing Np[[eta]4-Me2NC(H)C6H5]3 as a Np(III) starting material. The coordination and oxidation chemistry is explored with [nBu4N]N3, (C6H5CO)2O2 and Ph2S2 resulting in a bridged Np(III)/Np(III) azide complex with an outer sphere nBu4N and Np(IV) species, respectively.

show abstract

Thorium(IV) and uranium(IV) carbamates

Cited by 42 publications

References 13 publications

Recent Advances in the Chemistry of Metal Carbamates

Recent Advances in the Chemistry of Metal Carbamates

Coordination Chemistry and QTAIM Analysis of Homoleptic Dithiocarbamate Complexes, M(S₂CNⁱPr₂)₄ (M = Ti, Zr, Hf, Th, U, Np)

Synthesis and reactivity of low-valent uranium and neptunium complexes

Contact Info

Product

Resources

About

Thorium(IV) and uranium(IV) carbamates

Cited by 42 publications

References 13 publications

Recent Advances in the Chemistry of Metal Carbamates

Recent Advances in the Chemistry of Metal Carbamates

Coordination Chemistry and QTAIM Analysis of Homoleptic Dithiocarbamate Complexes, M(S2CNiPr2)4 (M = Ti, Zr, Hf, Th, U, Np)

Synthesis and reactivity of low-valent uranium and neptunium complexes

Contact Info

Product

Resources

About

Coordination Chemistry and QTAIM Analysis of Homoleptic Dithiocarbamate Complexes, M(S₂CNⁱPr₂)₄ (M = Ti, Zr, Hf, Th, U, Np)