Uranium(IV) imidazolin-2-iminato complexes: A new class of actinide complexes

Isabell S.R. Karmel; Mark Botoshansky; Matthias Tamm; Moris S. Eisen

doi:https://doi.org/10.1021/ic402806x

Uranium(IV) imidazolin-2-iminato complexes: A new class of actinide complexes

Isabell S.R. Karmel, Mark Botoshansky, Matthias Tamm, Moris S. Eisen

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Acid-base reactions between imidazolin-2-imines (Im^RNH) and [U(NMeEt)₄] selectively afforded uranium(IV) imidazolin-2-iminato complexes of the type [U(NIm^tBu)₄] (1), [U(NIm ^Mes)₃(NMeEt)] (2), and [U(NIm^Dipp) ₂(NMeEt)₂] (3) depending on the steric demand of the substituents in the 1 and 3 positions of the imidazole heterocycle (R = tBu, Mes, Dipp). This new class of actinide complexes displays short U-N bonds and nearly linear U-N-C bond angles, suggesting a U-N bond order higher than 1, as well as extraordinarily high catalytic activity in the polymerization of ε-caprolactone.

Original language	English
Pages (from-to)	694-696
Number of pages	3
Journal	Inorganic Chemistry
Volume	53
Issue number	2
DOIs	https://doi.org/10.1021/ic402806x
State	Published - 21 Jan 2014

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Uranium(IV) imidazolin-2-iminato complexes: A new class of actinide complexes",

abstract = "Acid-base reactions between imidazolin-2-imines (ImRNH) and [U(NMeEt)4] selectively afforded uranium(IV) imidazolin-2-iminato complexes of the type [U(NImtBu)4] (1), [U(NIm Mes)3(NMeEt)] (2), and [U(NImDipp) 2(NMeEt)2] (3) depending on the steric demand of the substituents in the 1 and 3 positions of the imidazole heterocycle (R = tBu, Mes, Dipp). This new class of actinide complexes displays short U-N bonds and nearly linear U-N-C bond angles, suggesting a U-N bond order higher than 1, as well as extraordinarily high catalytic activity in the polymerization of ε-caprolactone.",

author = "Karmel, {Isabell S.R.} and Mark Botoshansky and Matthias Tamm and {S. Eisen}, Moris",

year = "2014",

month = jan,

day = "21",

doi = "https://doi.org/10.1021/ic402806x",

language = "الإنجليزيّة",

volume = "53",

pages = "694--696",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Uranium(IV) imidazolin-2-iminato complexes

T2 - A new class of actinide complexes

AU - Karmel, Isabell S.R.

AU - Botoshansky, Mark

AU - Tamm, Matthias

AU - S. Eisen, Moris

PY - 2014/1/21

Y1 - 2014/1/21

N2 - Acid-base reactions between imidazolin-2-imines (ImRNH) and [U(NMeEt)4] selectively afforded uranium(IV) imidazolin-2-iminato complexes of the type [U(NImtBu)4] (1), [U(NIm Mes)3(NMeEt)] (2), and [U(NImDipp) 2(NMeEt)2] (3) depending on the steric demand of the substituents in the 1 and 3 positions of the imidazole heterocycle (R = tBu, Mes, Dipp). This new class of actinide complexes displays short U-N bonds and nearly linear U-N-C bond angles, suggesting a U-N bond order higher than 1, as well as extraordinarily high catalytic activity in the polymerization of ε-caprolactone.

AB - Acid-base reactions between imidazolin-2-imines (ImRNH) and [U(NMeEt)4] selectively afforded uranium(IV) imidazolin-2-iminato complexes of the type [U(NImtBu)4] (1), [U(NIm Mes)3(NMeEt)] (2), and [U(NImDipp) 2(NMeEt)2] (3) depending on the steric demand of the substituents in the 1 and 3 positions of the imidazole heterocycle (R = tBu, Mes, Dipp). This new class of actinide complexes displays short U-N bonds and nearly linear U-N-C bond angles, suggesting a U-N bond order higher than 1, as well as extraordinarily high catalytic activity in the polymerization of ε-caprolactone.

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U2 - https://doi.org/10.1021/ic402806x

DO - https://doi.org/10.1021/ic402806x

M3 - مقالة

SN - 0020-1669

VL - 53

SP - 694

EP - 696

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 2

ER -

Uranium(IV) imidazolin-2-iminato complexes: A new class of actinide complexes

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